/**
 * Informational Commands
 * Pokemon Showdown - https://pokemonshowdown.com/
 *
 * These are informational commands. For instance, you can define the command
 * 'whois' here, then use it by typing /whois into Pokemon Showdown.
 * For the API, see chat-plugins/COMMANDS.md
 *
 * @license MIT
 */
import * as net from 'net';
import { YouTube, Twitch } from '../chat-plugins/youtube';
import { Net, Utils } from '../../lib';
import { RoomSections } from './room-settings';

const ONLINE_SYMBOL = ` \u25C9 `;
const OFFLINE_SYMBOL = ` \u25CC `;

interface DexResources {
	url: string;
	resources: { resource_name: string, url: string }[];
}

export function getCommonBattles(
	userID1: ID, user1: User | null, userID2: ID, user2: User | null, connection: Connection
) {
	const battles = [];
	for (const curRoom of Rooms.rooms.values()) {
		if (!curRoom.battle) continue;
		if (
			(user1?.inRooms.has(curRoom.roomid) || curRoom.auth.get(userID1) === Users.PLAYER_SYMBOL) &&
			(user2?.inRooms.has(curRoom.roomid) || curRoom.auth.get(userID2) === Users.PLAYER_SYMBOL)
		) {
			if (connection) {
				void curRoom.uploadReplay(connection.user, connection, "forpunishment");
			}
			battles.push(curRoom.roomid);
		}
	}
	return battles;
}

export function findFormats(targetId: string, isOMSearch = false) {
	const exactFormat = Dex.formats.get(targetId);

	const formatList = exactFormat.exists ? [exactFormat] : Dex.formats.all();

	// Filter formats and group by section
	const sections: { [k: string]: { name: string, formats: ID[] } } = {};
	let totalMatches = 0;
	for (const format of formatList) {
		const sectionId = toID(format.section);
		// Skip generation prefix if it wasn't provided
		const formatId = /^gen\d+/.test(targetId) ? format.id : format.id.slice(4);
		if (
			!targetId || format[targetId + 'Show' as 'searchShow'] || sectionId === targetId ||
			formatId.startsWith(targetId) || exactFormat.exists
		) {
			if (isOMSearch) {
				const officialFormats = [
					'ou', 'uu', 'ru', 'nu', 'pu', 'ubers', 'lc', 'monotype', 'customgame', 'doublescustomgame', 'gbusingles', 'gbudoubles',
				];
				if (format.id.startsWith('gen') && officialFormats.includes(format.id.slice(4))) {
					continue;
				}
			}
			totalMatches++;
			if (!sections[sectionId]) sections[sectionId] = { name: format.section!, formats: [] };
			sections[sectionId].formats.push(format.id);
		}
	}
	return { totalMatches, sections };
}

export const formatsDataCache = new Map<string, DexResources | null>();
export async function getFormatResources(format: string) {
	const cached = formatsDataCache.get(format);
	if (cached !== undefined) return cached;
	try {
		const raw = await Net(`https://www.smogon.com/dex/api/formats/by-ps-name/${format}`).get();
		const data = JSON.parse(raw);
		formatsDataCache.set(format, data);
		return data;
	} catch {
		// some sort of json error or request can't be made
		// so something on smogon's end. freeze the request, punt
		formatsDataCache.set(format, null);
		return null;
	}
}

// clear every 15 minutes to ensure it's only minimally stale
const resourceRefreshInterval = setInterval(() => formatsDataCache.clear(), 15 * 60 * 1000);

export function destroy() {
	clearInterval(resourceRefreshInterval);
}

export const commands: Chat.ChatCommands = {
	ip: 'whois',
	rooms: 'whois',
	alt: 'whois',
	alts: 'whois',
	whoare: 'whois',
	altsnorecurse: 'whois',
	profile: 'whois',
	whois(target, room, user, connection, cmd) {
		if (room?.roomid === 'staff' && !this.runBroadcast()) return;
		const targetUser = this.getUserOrSelf(target, { exactName: user.tempGroup === ' ' });
		const showAll = (cmd === 'ip' || cmd === 'whoare' || cmd === 'alt' || cmd === 'alts' || cmd === 'altsnorecurse');
		const showRecursiveAlts = showAll && (cmd !== 'altsnorecurse');
		if (!targetUser) {
			if (showAll) return this.parse('/offlinewhois ' + target);
			throw new Chat.ErrorMessage(`User ${target} not found.`);
		}
		if (showAll && !user.trusted && targetUser !== user) {
			throw new Chat.ErrorMessage(`/${cmd} - Access denied.`);
		}

		let buf = Utils.html`<strong class="username"><small style="display:none">${targetUser.tempGroup}</small>${targetUser.name}</strong> `;
		const ac = targetUser.autoconfirmed;
		if (ac && showAll) {
			buf += ` <small style="color:gray">(ac${targetUser.id === ac ? `` : `: <span class="username">${ac}</span>`})</small>`;
		}
		const trusted = targetUser.trusted;
		if (trusted && showAll) {
			buf += ` <small style="color:gray">(trusted${targetUser.id === trusted ? `` : `: <span class="username">${trusted}</span>`})</small>`;
		}
		if (!targetUser.connected) buf += ` <em style="color:gray">(offline)</em>`;
		const roomauth = room?.auth.getDirect(targetUser.id);
		if (roomauth && Config.groups[roomauth]?.name) {
			buf += Utils.html`<br />${Config.groups[roomauth].name} (${roomauth})`;
		}
		if (Config.groups[targetUser.tempGroup]?.name) {
			buf += Utils.html`<br />Global ${Config.groups[targetUser.tempGroup].name} (${targetUser.tempGroup})`;
		}
		if (Users.globalAuth.sectionLeaders.has(targetUser.id)) {
			buf += Utils.html`<br />Section Leader (${RoomSections.sectionNames[Users.globalAuth.sectionLeaders.get(targetUser.id)!]})`;
		}
		if (targetUser.isSysop) {
			buf += `<br />(Pok&eacute;mon Showdown System Operator)`;
		}
		if (!targetUser.registered) {
			buf += `<br />(Unregistered)`;
		}
		let publicrooms = ``;
		let hiddenrooms = ``;
		let privaterooms = ``;
		for (const roomid of targetUser.inRooms) {
			const targetRoom = Rooms.get(roomid)!;

			const authSymbol = targetRoom.auth.getDirect(targetUser.id).trim();
			const battleTitle = (targetRoom.battle ? ` title="${targetRoom.title}"` : '');
			const output = `${authSymbol}<a href="/${roomid}"${battleTitle}>${roomid}</a>`;
			if (targetRoom.settings.isPrivate === true) {
				if (targetRoom.settings.modjoin === '~') continue;
				if (privaterooms) privaterooms += ` | `;
				privaterooms += output;
			} else if (targetRoom.settings.isPrivate) {
				if (hiddenrooms) hiddenrooms += ` | `;
				hiddenrooms += output;
			} else {
				if (publicrooms) publicrooms += ` | `;
				publicrooms += output;
			}
		}
		buf += `<br />Rooms: ${publicrooms || `<em>(no public rooms)</em>`}`;

		if (!showAll) {
			return this.sendReplyBox(buf);
		}
		const canViewAlts = (user === targetUser ? user.can('altsself') : user.can('alts', targetUser));
		const canViewPunishments = canViewAlts ||
			(room && room.settings.isPrivate !== true && user.can('mute', targetUser, room) && targetUser.id in room.users);
		const canViewSecretRooms = user === targetUser || (canViewAlts && targetUser.locked) || user.can('makeroom');
		buf += `<br />`;

		if (canViewAlts) {
			let prevNames = targetUser.previousIDs.map(userid => {
				const punishments = Punishments.userids.get(userid);
				if (!punishments || !user.can('alts')) return userid;
				return punishments.map(
					punishment => (
						`${userid}${punishment ? ` (${Punishments.punishmentTypes.get(punishment.type)?.desc || `punished`}` +
						`${punishment.id !== targetUser.id ? ` as ${punishment.id}` : ``})` : ``}`
					)
				).join(' | ');
			}).join(", ");
			if (prevNames) buf += Utils.html`<br />Previous names: ${prevNames}`;

			for (const targetAlt of targetUser.getAltUsers(true)) {
				if (!targetAlt.named && !targetAlt.connected) continue;
				if (targetAlt.tempGroup === '~' && user.tempGroup !== '~') continue;

				const punishments = Punishments.userids.get(targetAlt.id) || [];
				const punishMsg = !user.can('alts') ? '' : punishments.map(punishment => (
					` (${Punishments.punishmentTypes.get(punishment.type)?.desc || 'punished'}` +
					`${punishment.id !== targetAlt.id ? ` as ${punishment.id}` : ''})`
				)).join(' | ');
				buf += Utils.html`<br />Alt: <span class="username">${targetAlt.name}</span>${punishMsg}`;
				if (!targetAlt.connected) buf += ` <em style="color:gray">(offline)</em>`;
				prevNames = targetAlt.previousIDs.map(userid => {
					const p = Punishments.userids.get(userid);
					if (!p || !user.can('alts')) return userid;
					return p.map(
						cur => `${userid} (${Punishments.punishmentTypes.get(cur.type)?.desc || 'punished'}` + `${cur.id !== targetAlt.id ? ` as ${cur.id}` : ``})`
					).join(' | ');
				}).join(", ");
				if (prevNames) buf += `<br />Previous names: ${prevNames}`;
			}
		}
		if (canViewPunishments) {
			if (targetUser.namelocked) {
				buf += `<br />NAMELOCKED: ${targetUser.namelocked}`;
				const punishment = Punishments.userids.getByType(targetUser.locked!, 'NAMELOCK');
				if (punishment) {
					const expiresIn = Punishments.checkLockExpiration(targetUser.locked);
					if (expiresIn) buf += expiresIn;
					if (punishment.reason) buf += Utils.html` (reason: ${punishment.reason})`;
				}
			} else if (targetUser.locked) {
				buf += `<br />LOCKED: ${targetUser.locked}`;
				switch (targetUser.locked) {
				case '#rangelock':
					buf += ` - IP or host is in a temporary range-lock`;
					break;
				case '#hostfilter':
					buf += ` - host is permanently locked for being a proxy`;
					break;
				}
				const punishment = Punishments.userids.getByType(targetUser.locked, 'LOCK');
				if (punishment) {
					const expiresIn = Punishments.checkLockExpiration(targetUser.locked);
					if (expiresIn) buf += expiresIn;
					if (punishment.reason) buf += Utils.html` (reason: ${punishment.reason})`;
				}
			}

			if (user.can('lock')) {
				const battlebanned = Punishments.isBattleBanned(targetUser);
				if (battlebanned) {
					buf += `<br />BATTLEBANNED: ${battlebanned.id}`;
					buf += ` ${Punishments.checkPunishmentExpiration(battlebanned)}`;
					if (battlebanned.reason) buf += Utils.html` (reason: ${battlebanned.reason})`;
				}

				const groupchatbanned = Punishments.isGroupchatBanned(targetUser);
				if (groupchatbanned) {
					buf += `<br />Banned from using groupchats${groupchatbanned.id !== targetUser.id ? `: ${groupchatbanned.id}` : ``}`;
					buf += ` ${Punishments.checkPunishmentExpiration(groupchatbanned)}`;
					if (groupchatbanned.reason) buf += Utils.html` (reason: ${groupchatbanned.reason})`;
				}

				const ticketbanned = Punishments.isTicketBanned(targetUser.id);
				if (ticketbanned) {
					buf += `<br />Banned from creating help tickets${ticketbanned.id !== targetUser.id ? `: ${ticketbanned.id}` : ``}`;
					buf += ` ${Punishments.checkPunishmentExpiration(ticketbanned)}`;
					if (ticketbanned.reason) buf += Utils.html` (reason: ${ticketbanned.reason})`;
				}
			}
			if (targetUser.semilocked) {
				buf += `<br />Semilocked: ${user.can('lock') ? targetUser.semilocked : "(reason hidden)"}`;
			}
		}
		if (user === targetUser ? user.can('ipself') : user.can('ip', targetUser)) {
			const ips = targetUser.ips.map(ip => {
				const status = [];
				const punishments = Punishments.ips.get(ip);
				if (user.can('alts') && punishments) {
					for (const punishment of punishments) {
						const { type, id } = punishment;
						let punishMsg = Punishments.punishmentTypes.get(type)?.desc || type;
						if (id !== targetUser.id) punishMsg += ` as ${id}`;
						status.push(punishMsg);
					}
				}
				if (Punishments.isSharedIp(ip)) {
					let sharedStr = 'shared';
					if (Punishments.sharedIps.get(ip)) {
						sharedStr += `: ${Punishments.sharedIps.get(ip)}`;
					}
					status.push(sharedStr);
				}
				return `<a href="https://whatismyipaddress.com/ip/${ip}" target="_blank">${ip}</a>` + (status.length ? ` (${status.join('; ')})` : '');
			});
			buf += `<br /> IP${Chat.plural(ips)}: ${ips.join(", ")}`;
			if (user.tempGroup !== ' ' && targetUser.latestHost) {
				buf += Utils.html`<br />Host: ${targetUser.latestHost} [${targetUser.latestHostType}]`;
			}
		} else if (user === targetUser) {
			buf += `<br /> IP: <a href="https://whatismyipaddress.com/ip/${connection.ip}" target="_blank">${connection.ip}</a>`;
		}
		if ((user === targetUser || canViewAlts) && hiddenrooms) {
			buf += `<br />Hidden rooms: ${hiddenrooms}`;
		}
		if (canViewSecretRooms && privaterooms) {
			buf += `<br />Secret rooms: ${privaterooms}`;
		}

		const gameRooms = [];
		for (const curRoom of Rooms.rooms.values()) {
			if (!curRoom.game) continue;
			const inPlayerTable = targetUser.id in curRoom.game.playerTable && !targetUser.inRooms.has(curRoom.roomid);
			const hasPlayerSymbol = curRoom.auth.getDirect(targetUser.id) === Users.PLAYER_SYMBOL;
			const canSeeRoom = canViewAlts || user === targetUser || !curRoom.settings.isPrivate;

			if ((inPlayerTable || hasPlayerSymbol) && canSeeRoom) {
				gameRooms.push(curRoom.roomid);
			}
		}
		if (gameRooms.length) {
			buf += `<br />Recent games: ${gameRooms.map(id => {
				const shortId = id.startsWith('battle-') ? id.slice(7) : id;
				return Utils.html`<a href="/${id}">${shortId}</a>`;
			}).join(' | ')}`;
		}

		if (canViewPunishments) {
			const punishments = Punishments.getRoomPunishments(targetUser, { checkIps: true });

			if (punishments.length) {
				buf += `<br />Room punishments: `;

				buf += punishments.map(([curRoom, curPunishment]) => {
					const { type: punishType, id: punishUserid, expireTime, reason } = curPunishment;
					let punishDesc = Punishments.roomPunishmentTypes.get(punishType)?.desc || punishType;
					if (punishUserid !== targetUser.id) punishDesc += ` as ${punishUserid}`;
					const expiresIn = new Date(expireTime).getTime() - Date.now();
					const expireString = Chat.toDurationString(expiresIn, { precision: 1 });
					punishDesc += ` for ${expireString}`;

					if (reason) punishDesc += `: ${reason}`;
					return `<a href="/${curRoom}">${curRoom}</a> (${punishDesc})`;
				}).join(', ');
			}
		}
		this.sendReplyBox(buf);

		if (showRecursiveAlts && canViewAlts) {
			const targetId = toID(target);
			for (const alt of Users.users.values()) {
				if (alt !== targetUser && alt.previousIDs.includes(targetId)) {
					void this.parse(`/altsnorecurse ${alt.name}`);
				}
			}
		}
	},
	whoishelp: [
		`/whois - Get details on yourself: alts, group, IP address, and rooms.`,
		`/whois [username] - Get details on a username: alts (Requires: % @ ~), group, IP address (Requires: @ ~), and rooms.`,
	],

	'chp': 'offlinewhois',
	checkpunishment: 'offlinewhois',
	offlinewhois(target, room, user) {
		if (!user.trusted) {
			throw new Chat.ErrorMessage("/offlinewhois - Access denied.");
		}
		const userid = toID(target);
		if (!userid) throw new Chat.ErrorMessage("Please enter a valid username.");
		const targetUser = Users.get(userid);
		let buf = Utils.html`<strong class="username">${target}</strong>`;
		if (!targetUser?.connected) buf += ` <em style="color:gray">(offline)</em>`;

		const roomauth = room?.auth.getDirect(userid);
		if (roomauth && Config.groups[roomauth]?.name) {
			buf += `<br />${Config.groups[roomauth].name} (${roomauth})`;
		}
		const group = Users.globalAuth.get(userid);
		if (Config.groups[group]?.name) {
			buf += `<br />Global ${Config.groups[group].name} (${group})`;
		}
		if (Users.globalAuth.sectionLeaders.has(userid)) {
			buf += `<br />Section Leader (${RoomSections.sectionNames[Users.globalAuth.sectionLeaders.get(userid)!]})`;
		}

		buf += `<br /><br />`;
		let atLeastOne = false;

		const idPunishments = Punishments.userids.get(userid);
		if (idPunishments) {
			for (const p of idPunishments) {
				const { type: punishType, id: punishUserid, reason } = p;
				if (!user.can('alts') && !['LOCK', 'BAN'].includes(punishType)) continue;
				const punishDesc = (Punishments.punishmentTypes.get(punishType)?.desc || punishType);
				buf += `${punishDesc}: ${punishUserid}`;
				const expiresIn = Punishments.checkLockExpiration(userid);
				if (expiresIn) buf += expiresIn;
				if (reason) buf += Utils.html` (reason: ${reason})`;
				buf += '<br />';
				atLeastOne = true;
			}
		}

		if (!user.can('alts') && !atLeastOne) {
			const hasJurisdiction = room && user.can('mute', null, room) && Punishments.roomUserids.nestedHas(room.roomid, userid);
			if (!hasJurisdiction) {
				throw new Chat.ErrorMessage("/checkpunishment - User not found.");
			}
		}

		const punishments = Punishments.getRoomPunishments(targetUser || { id: userid } as User);

		if (punishments?.length) {
			buf += `<br />Room punishments: `;

			buf += punishments.map(([curRoom, curPunishment]) => {
				const { type: punishType, id: punishUserid, expireTime, reason } = curPunishment;
				let punishDesc = Punishments.roomPunishmentTypes.get(punishType)?.desc || punishType;
				if (punishUserid !== userid) punishDesc += ` as ${punishUserid}`;
				const expiresIn = new Date(expireTime).getTime() - Date.now();
				const expireString = Chat.toDurationString(expiresIn, { precision: 1 });
				punishDesc += ` for ${expireString}`;

				if (reason) punishDesc += `: ${reason}`;
				return `<a href="/${curRoom}">${curRoom}</a> (${punishDesc})`;
			}).join(', ');
			atLeastOne = true;
		}
		if (!atLeastOne) {
			buf += `This username has no punishments associated with it.`;
		}
		this.sendReplyBox(buf);
	},
	offlinewhoishelp: [
		`/offlinewhois [username] - Get details on a username without requiring them to be online.`,
		`Requires: trusted user. `,
	],

	sbtl: 'sharedbattles',
	sharedbattles(target, room) {
		this.checkCan('lock');

		const [targetUsername1, targetUsername2] = target.split(',');
		if (!targetUsername1 || !targetUsername2) return this.parse(`/help sharedbattles`);
		const user1 = Users.get(targetUsername1);
		const user2 = Users.get(targetUsername2);
		const userID1 = toID(targetUsername1);
		const userID2 = toID(targetUsername2);

		const battles = getCommonBattles(userID1, user1, userID2, user2, this.connection);

		if (!battles.length) return this.sendReply(`${targetUsername1} and ${targetUsername2} have no common battles.`);

		this.sendReplyBox(Utils.html`Common battles between ${targetUsername1} and ${targetUsername2}:<br />` + battles.map(id => {
			const shortId = id.startsWith('battle-') ? id.slice(7) : id;
			return Utils.html`<a href="/${id}">${shortId}</a>`;
		}).join(' | '));
	},
	sharedbattleshelp: [`/sharedbattles [user1], [user2] - Finds recent battles common to [user1] and [user2]. Requires % @ ~`],

	sp: 'showpunishments',
	showpunishments(target, room, user) {
		room = this.requireRoom();
		if (!room.persist) {
			throw new Chat.ErrorMessage("This command is unavailable in temporary rooms.");
		}
		return this.parse(`/join view-punishments-${room}`);
	},
	showpunishmentshelp: [`/showpunishments - Shows the current punishments in the room. Requires: % @ # ~`],

	sgp: 'showglobalpunishments',
	showglobalpunishments(target, room, user) {
		this.checkCan('lock');
		return this.parse(`/join view-globalpunishments`);
	},
	showglobalpunishmentshelp: [`/showpunishments - Shows the current global punishments. Requires: % @ # ~`],

	async host(target, room, user, connection, cmd) {
		if (!target) return this.parse('/help host');
		this.checkCan('alts');
		target = target.trim();
		if (!net.isIPv4(target)) throw new Chat.ErrorMessage('You must pass a valid IPv4 IP to /host.');
		const { dnsbl, host, hostType } = await IPTools.lookup(target);
		const dnsblMessage = dnsbl ? ` [${dnsbl}]` : ``;
		this.sendReply(`IP ${target}: ${host || "ERROR"} [${hostType}]${dnsblMessage}`);
	},
	hosthelp: [`/host [ip] - Gets the host for a given IP. Requires: % @ ~`],

	searchip: 'ipsearch',
	ipsearchall: 'ipsearch',
	hostsearch: 'ipsearch',
	ipsearch(target, room, user, connection, cmd) {
		if (!target.trim()) return this.parse(`/help ipsearch`);
		this.checkCan('rangeban');

		const [ipOrHost, roomid] = this.splitOne(target);
		const targetRoom = roomid ? Rooms.get(roomid) : null;
		if (typeof targetRoom === 'undefined') {
			throw new Chat.ErrorMessage(`The room "${roomid}" does not exist.`);
		}
		const results: string[] = [];
		const isAll = (cmd === 'ipsearchall');

		if (/[a-z]/.test(ipOrHost)) {
			// host
			this.sendReply(`Users with host ${ipOrHost}${targetRoom ? ` in the room ${targetRoom.title}` : ``}:`);
			for (const curUser of Users.users.values()) {
				if (results.length > 100 && !isAll) break;
				if (!curUser.latestHost?.endsWith(ipOrHost)) continue;
				if (targetRoom && !curUser.inRooms.has(targetRoom.roomid)) continue;
				results.push(`${curUser.connected ? ONLINE_SYMBOL : OFFLINE_SYMBOL} ${curUser.name}`);
			}
		} else if (IPTools.ipRegex.test(ipOrHost)) {
			// ip
			this.sendReply(`Users with IP ${ipOrHost}${targetRoom ? ` in the room ${targetRoom.title}` : ``}:`);
			for (const curUser of Users.users.values()) {
				if (!curUser.ips.some(ip => ip === ipOrHost)) continue;
				if (targetRoom && !curUser.inRooms.has(targetRoom.roomid)) continue;
				results.push(`${curUser.connected ? ONLINE_SYMBOL : OFFLINE_SYMBOL} ${curUser.name}`);
			}
		} else if (IPTools.isValidRange(ipOrHost)) {
			// range
			this.sendReply(`Users in IP range ${ipOrHost}${targetRoom ? ` in the room ${targetRoom.title}` : ``}:`);
			const checker = IPTools.checker(ipOrHost);
			for (const curUser of Users.users.values()) {
				if (results.length > 100 && !isAll) continue;
				if (!curUser.ips.some(ip => checker(ip))) continue;
				if (targetRoom && !curUser.inRooms.has(targetRoom.roomid)) continue;
				results.push(`${curUser.connected ? ONLINE_SYMBOL : OFFLINE_SYMBOL} ${curUser.name}`);
			}
		} else {
			throw new Chat.ErrorMessage(`${ipOrHost} is not a valid IP, IP range, or host.`);
		}

		if (!results.length) {
			return this.sendReply(`No users found.`);
		}
		this.sendReply(results.slice(0, 100).join('; '));
		if (results.length > 100 && !isAll) {
			this.sendReply(`More than 100 users found. Use /ipsearchall for the full list.`);
		}
	},
	ipsearchhelp: [`/ipsearch [ip|range|host], (room) - Find all users with specified IP, IP range, or host. If a room is provided only users in the room will be shown. Requires: ~`],

	checkchallenges(target, room, user) {
		room = this.requireRoom();
		if (!user.can('addhtml', null, room)) this.checkCan('ban', null, room);
		if (!this.runBroadcast(true)) return;
		if (!this.broadcasting) {
			this.errorReply(`This command must be broadcast:`);
			return this.parse(`/help checkchallenges`);
		}
		if (!target?.includes(',')) return this.parse(`/help checkchallenges`);
		const { targetUser: user1, rest } = this.requireUser(target);
		const { targetUser: user2, rest: rest2 } = this.requireUser(rest);
		if (user1 === user2 || rest2) return this.parse(`/help checkchallenges`);
		if (!(user1.id in room.users) || !(user2.id in room.users)) {
			throw new Chat.ErrorMessage(`Both users must be in this room.`);
		}
		const chall = Ladders.challenges.search(user1.id, user2.id);

		if (!chall) {
			return this.sendReplyBox(Utils.html`${user1.name} and ${user2.name} are not challenging each other.`);
		}
		const [from, to] = user1.id === chall.from ? [user1, user2] : [user2, user1];
		this.sendReplyBox(Utils.html`${from.name} is challenging ${to.name} in ${Dex.formats.get(chall.format).name}.`);
	},
	checkchallengeshelp: [`!checkchallenges [user1], [user2] - Check if the specified users are challenging each other. Requires: * @ # ~`],

	/*********************************************************
	 * Client fallback
	 *********************************************************/

	unignore: 'ignore',
	ignore(target, room, user) {
		if (!room) {
			this.errorReply(`In PMs, this command can only be used by itself to ignore the person you're talking to: "/${this.cmd}", not "/${this.cmd} ${target}"`);
		}
		this.errorReply(`You're using a custom client that doesn't support the ignore command.`);
	},
	ignorehelp: [`/ignore [user] - Ignore the given [user].`],

	/*********************************************************
	 * Data Search Dex
	 *********************************************************/

	pstats: 'data',
	stats: 'data',
	dex: 'data',
	pokedex: 'data',
	data(target, room, user, connection, cmd) {
		if (!this.runBroadcast()) return;
		target = target.trim();
		const gen = parseInt(cmd.substr(-1));
		if (gen) target += `, gen${gen}`;

		const { dex, format, targets } = this.splitFormat(target, true, true);

		const prefix = `|c|${user.getIdentity(room)}|/raw `;
		let buffer = '';
		target = targets.join(',');
		const targetId = toID(target);
		if (!targetId) return this.parse('/help data');
		const targetNum = parseInt(target);
		if (!isNaN(targetNum) && `${targetNum}` === target) {
			for (const pokemon of Dex.species.all()) {
				if (pokemon.num === targetNum) {
					target = pokemon.baseSpecies;
					break;
				}
			}
		}
		const newTargets = dex.dataSearch(target);
		const showDetails = (cmd.startsWith('dt') || cmd === 'details');
		if (!newTargets?.length) {
			throw new Chat.ErrorMessage(`'${target}' doesn't match any Pok\u00e9mon, item, move, ability or nature${Dex.gen > dex.gen ? ` in Gen ${dex.gen}` : ""}. (Check your spelling?)`);
		}
		if (newTargets.length > 2) {
			throw new Chat.ErrorMessage(`'${target}' has no exact match. Too many approximate matches: ${newTargets.map(t => t.name).join(', ')}`);
		}

		for (const [i, newTarget] of newTargets.entries()) {
			if (newTarget.isInexact && !i) {
				buffer = `'${target}' has no exact match${Dex.gen > dex.gen ? ` in Gen ${dex.gen}` : ""}. Approximate match${newTargets.length === 1 ? '' : 'es'}:\n`;
			}
			let details: { [k: string]: string } = {};
			switch (newTarget.searchType) {
			case 'nature':
				const nature = Dex.natures.get(newTarget.name);
				buffer += `${nature.name} nature: `;
				if (nature.plus) {
					buffer += `+10% ${Dex.stats.names[nature.plus]}, -10% ${Dex.stats.names[nature.minus!]}.`;
				} else {
					buffer += `No effect.`;
				}
				return this.sendReply(buffer);
			case 'pokemon':
				let pokemon = dex.species.get(newTarget.name);
				if (format?.onModifySpecies) {
					pokemon = format.onModifySpecies.call({ dex, clampIntRange: Utils.clampIntRange, toID } as Battle, pokemon) || pokemon;
				}
				let tierDisplay = room?.settings.dataCommandTierDisplay;
				if (!tierDisplay && room?.battle) {
					if (room.battle.format.includes('doubles') || room.battle.format.includes('vgc')) {
						tierDisplay = 'doubles tiers';
					} else if (room.battle.format.includes('nationaldex')) {
						tierDisplay = 'National Dex tiers';
					}
				}
				if (!tierDisplay) tierDisplay = 'tiers';
				const displayedTier = tierDisplay === 'tiers' ? pokemon.tier :
					tierDisplay === 'doubles tiers' ? pokemon.doublesTier :
					tierDisplay === 'National Dex tiers' ? pokemon.natDexTier :
					pokemon.num >= 0 ? String(pokemon.num) : pokemon.tier;
				buffer += `${prefix}${Chat.getDataPokemonHTML(pokemon, dex.gen, displayedTier)}\n`;
				if (showDetails) {
					let weighthit = 20;
					if (pokemon.weighthg >= 2000) {
						weighthit = 120;
					} else if (pokemon.weighthg >= 1000) {
						weighthit = 100;
					} else if (pokemon.weighthg >= 500) {
						weighthit = 80;
					} else if (pokemon.weighthg >= 250) {
						weighthit = 60;
					} else if (pokemon.weighthg >= 100) {
						weighthit = 40;
					}
					details = {
						"Dex#": String(pokemon.num),
						Gen: String(pokemon.gen) || 'CAP',
						Height: `${pokemon.heightm} m`,
					};
					details["Weight"] = `${pokemon.weighthg / 10} kg <em>(${weighthit} BP)</em>`;
					const gmaxMove = pokemon.canGigantamax || dex.species.get(pokemon.changesFrom).canGigantamax;
					if (gmaxMove && dex.gen === 8) details["G-Max Move"] = gmaxMove;
					if (dex.gen === 1) details["Crit Rate"] = `${((pokemon.baseStats.spe * 100) / 512).toFixed(2)}%`;
					if (pokemon.color && dex.gen >= 5) details["Dex Colour"] = pokemon.color;
					if (pokemon.eggGroups && dex.gen >= 2) details["Egg Group(s)"] = pokemon.eggGroups.join(", ");
					const evos: string[] = [];
					for (const evoName of pokemon.evos) {
						const evo = dex.species.get(evoName);
						if (evo.gen <= dex.gen) {
							const condition = evo.evoCondition ? ` ${evo.evoCondition}` : ``;
							switch (evo.evoType) {
							case 'levelExtra':
								evos.push(`${evo.name} (level-up${condition})`);
								break;
							case 'levelFriendship':
								evos.push(`${evo.name} (level-up with high Friendship${condition})`);
								break;
							case 'levelHold':
								evos.push(`${evo.name} (level-up holding ${evo.evoItem}${condition})`);
								break;
							case 'useItem':
								evos.push(`${evo.name} (${evo.evoItem})`);
								break;
							case 'levelMove':
								evos.push(`${evo.name} (level-up with ${evo.evoMove}${condition})`);
								break;
							case 'other':
								evos.push(`${evo.name} (${evo.evoCondition})`);
								break;
							case 'trade':
								evos.push(`${evo.name} (trade${evo.evoItem ? ` holding ${evo.evoItem}` : condition})`);
								break;
							default:
								evos.push(`${evo.name} (${evo.evoLevel}${condition})`);
							}
						}
					}
					if (pokemon.prevo) {
						details["Pre-Evolution"] = pokemon.prevo;
					}
					if (!evos.length) {
						details[`<font color="#686868">Does Not Evolve</font>`] = "";
					} else {
						details["Evolution"] = evos.join(", ");
					}
				}
				break;
			case 'item':
				const item = dex.items.get(newTarget.name);
				buffer += `${prefix}${Chat.getDataItemHTML(item)}\n`;
				if (showDetails) {
					details = {
						Gen: String(item.gen),
					};

					if (dex.gen >= 4) {
						if (item.fling) {
							details["Fling Base Power"] = String(item.fling.basePower);
							if (item.fling.status) details["Fling Effect"] = item.fling.status;
							if (item.fling.volatileStatus) details["Fling Effect"] = item.fling.volatileStatus;
							if (item.isBerry) details["Fling Effect"] = "Activates the Berry's effect on the target.";
							if (item.id === 'whiteherb') details["Fling Effect"] = "Restores the target's negative stat stages to 0.";
							if (item.id === 'mentalherb') {
								const flingEffect = "Removes the effects of Attract, Disable, Encore, Heal Block, Taunt, and Torment from the target.";
								details["Fling Effect"] = flingEffect;
							}
						} else {
							details["Fling"] = "This item cannot be used with Fling.";
						}
					}
					if (item.naturalGift && dex.gen >= 3) {
						details["Natural Gift Type"] = item.naturalGift.type;
						details["Natural Gift Base Power"] = String(item.naturalGift.basePower);
					}
					if (item.isNonstandard) {
						details[`Unobtainable in Gen ${dex.gen}`] = "";
					}
				}
				break;
			case 'move':
				const move = dex.moves.get(newTarget.name);
				buffer += `${prefix}${Chat.getDataMoveHTML(move, dex.currentMod.startsWith('champions'))}\n`;
				if (showDetails) {
					details = {
						Priority: String(move.priority),
						Gen: String(move.gen) || 'CAP',
					};

					const pastGensOnly = (move.isNonstandard === "Past" && dex.gen >= 8);
					if (pastGensOnly) details["&#10007; Past Gens Only"] = "";
					if (move.secondary || move.secondaries || move.hasSheerForceBoost) {
						details["&#10003; Boosted by Sheer Force"] = "";
					}
					if (move.flags['contact'] && dex.gen >= 3) details["&#10003; Contact"] = "";
					if (move.flags['sound'] && dex.gen >= 3) details["&#10003; Sound"] = "";
					if (move.flags['bullet'] && dex.gen >= 6) details["&#10003; Bullet"] = "";
					if (move.flags['pulse'] && dex.gen >= 6) details["&#10003; Pulse"] = "";
					if (!move.flags['protect'] && move.target !== 'self') details["&#10003; Bypasses Protect"] = "";
					if (move.flags['bypasssub']) details["&#10003; Bypasses Substitutes"] = "";
					if (move.flags['defrost']) details["&#10003; Thaws user"] = "";
					if (move.flags['bite'] && dex.gen >= 6) details["&#10003; Bite"] = "";
					if (move.flags['punch'] && dex.gen >= 4) details["&#10003; Punch"] = "";
					if (move.flags['powder'] && dex.gen >= 6) details["&#10003; Powder"] = "";
					if (move.flags['reflectable'] && dex.gen >= 3) details["&#10003; Bounceable"] = "";
					if (move.flags['charge']) details["&#10003; Two-turn move"] = "";
					if (move.flags['recharge']) details["&#10003; Has recharge turn"] = "";
					if (move.flags['gravity'] && dex.gen >= 4) details["&#10007; Suppressed by Gravity"] = "";
					if (move.flags['dance'] && dex.gen >= 7) details["&#10003; Dance move"] = "";
					if (move.flags['slicing'] && dex.gen >= 9) details["&#10003; Slicing move"] = "";
					if (move.flags['wind'] && dex.gen >= 9) details["&#10003; Wind move"] = "";

					if (dex.gen >= 7) {
						if (move.gen >= 8 && move.isMax) {
							// Don't display Z-Power for Max/G-Max moves
						} else if (move.zMove?.basePower) {
							details["Z-Power"] = String(move.zMove.basePower);
						} else if (move.zMove?.effect) {
							const zEffects: { [k: string]: string } = {
								clearnegativeboost: "Restores negative stat stages to 0",
								crit2: "Crit ratio +2",
								heal: "Restores HP 100%",
								curse: "Restores HP 100% if user is Ghost type, otherwise Attack +1",
								redirect: "Redirects opposing attacks to user",
								healreplacement: "Restores replacement's HP 100%",
							};
							details["Z-Effect"] = zEffects[move.zMove.effect];
						} else if (move.zMove?.boost) {
							details["Z-Effect"] = "";
							const boost = move.zMove.boost;
							const stats: { [k in BoostID]: string } = {
								atk: 'Attack', def: 'Defense', spa: 'Sp. Atk', spd: 'Sp. Def', spe: 'Speed', accuracy: 'Accuracy', evasion: 'Evasiveness',
							};
							let h: BoostID;
							for (h in boost) {
								details["Z-Effect"] += ` ${stats[h]} +${boost[h]}`;
							}
						} else if (move.isZ && typeof move.isZ === 'string') {
							details["&#10003; Z-Move"] = "";
							const zCrystal = dex.items.get(move.isZ);
							details["Z-Crystal"] = zCrystal.name;
							if (zCrystal.itemUser) {
								details["User"] = zCrystal.itemUser.join(", ");
								details["Required Move"] = dex.items.get(move.isZ).zMoveFrom!;
							}
						} else {
							details["Z-Effect"] = "None";
						}
					}

					if (move.isMax) {
						details["&#10003; Max Move"] = "";
						if (typeof move.isMax === "string") details["User"] = `${move.isMax}`;
					} else if (dex.gen === 8 && move.maxMove?.basePower) {
						details["Dynamax Power"] = String(move.maxMove.basePower);
					}

					const targetTypes: { [k: string]: string } = {
						normal: "One Adjacent Pok\u00e9mon",
						self: "User",
						adjacentAlly: "One Ally",
						adjacentAllyOrSelf: "User or Ally",
						adjacentFoe: "One Adjacent Opposing Pok\u00e9mon",
						allAdjacentFoes: "All Adjacent Opponents",
						foeSide: "Opposing Side",
						allySide: "User's Side",
						allyTeam: "User's Team",
						allAdjacent: "All Adjacent Pok\u00e9mon",
						any: "Any Pok\u00e9mon",
						all: "All Pok\u00e9mon",
						scripted: "Chosen Automatically",
						randomNormal: "Random Adjacent Opposing Pok\u00e9mon",
						allies: "User and Allies",
					};
					details["Target"] = targetTypes[move.target] || "Unknown";

					if (move.id === 'snatch' && dex.gen >= 3) {
						details[`<a href="https://${Config.routes.dex}/tags/nonsnatchable">Non-Snatchable Moves</a>`] = '';
					}
					if (move.id === 'mirrormove') {
						details[`<a href="https://${Config.routes.dex}/tags/nonmirror">Non-Mirrorable Moves</a>`] = '';
					}
					if (move.isNonstandard === 'Unobtainable') {
						details[`Unobtainable in Gen ${dex.gen}`] = "";
					}
				}
				break;
			case 'ability':
				const ability = dex.abilities.get(newTarget.name);
				buffer += `${prefix}${Chat.getDataAbilityHTML(ability)}\n`;
				if (showDetails) {
					details = {
						Gen: String(ability.gen) || 'CAP',
					};
					if (ability.flags['cantsuppress']) details["&#10003; Not affected by Gastro Acid"] = "";
					if (ability.flags['breakable']) details["&#10003; Ignored by Mold Breaker"] = "";
					if (ability.isNonstandard) {
						details[`Unobtainable in Gen ${dex.gen}`] = "";
					}
				}
				break;
			default:
				throw new Error(`Unrecognized searchType`);
			}

			if (showDetails) {
				buffer += `${prefix}<font size="1">${Object.entries(details).map(([detail, value]) => (
					value === '' ? detail : `<font color="#686868">${detail}:</font> ${value}`
				)).join("&nbsp;|&ThickSpace;")}</font>\n`;
			}
		}
		this.sendReply(buffer);
	},
	datahelp: [
		`/data [pokemon/item/move/ability/nature] - Get details on this pokemon/item/move/ability/nature.`,
		`/data [pokemon/item/move/ability/nature], Gen [generation number/format name] - Get details on this pokemon/item/move/ability/nature for that generation/format.`,
		`!data [pokemon/item/move/ability/nature] - Show everyone these details. Requires: + % @ # ~`,
	],

	dt: 'details',
	dt1: 'details',
	dt2: 'details',
	dt3: 'details',
	dt4: 'details',
	dt5: 'details',
	dt6: 'details',
	dt7: 'details',
	dt8: 'details',
	dt9: 'details',
	details(target) {
		if (!target) return this.parse('/help details');
		this.run('data');
	},
	detailshelp() {
		this.sendReplyBox(
			`<code>/details [Pok\u00e9mon/item/move/ability/nature]</code>: get additional details on this Pok\u00e9mon/item/move/ability/nature.<br />` +
			`<code>/details [Pok\u00e9mon/item/move/ability/nature], Gen [generation number]</code>: get details on this Pok\u00e9mon/item/move/ability/nature in that generation.<br />` +
			`You can also append the generation number to <code>/dt</code>; for example, <code>/dt1 Mewtwo</code> gets details on Mewtwo in Gen 1.<br />` +
			`<code>/details [Pok\u00e9mon/item/move/ability/nature], [format]</code>: get details on this Pok\u00e9mon/item/move/ability/nature in that format.<br />` +
			`<code>!details [Pok\u00e9mon/item/move/ability/nature]</code>: show everyone these details. Requires: + % @ # ~`
		);
	},

	weaknesses: 'weakness',
	weak: 'weakness',
	resist: 'weakness',
	weakness(target, room, user) {
		if (!target) return this.parse('/help weakness');
		if (!this.runBroadcast()) return;
		const { format, dex, targets } = this.splitFormat(target.split(/[,/]/).map(toID));

		let isInverse = false;
		if (format && Dex.formats.getRuleTable(format).has('inversemod')) {
			isInverse = true;
		} else if (targets[targets.length - 1] === 'inverse') {
			isInverse = true;
			targets.pop();
		}

		const originalSearch = target;
		let imperfectMatch = false;
		let isMatch = false;
		let species = dex.species.get(targets[0]);
		let type1 = dex.types.get(targets[0]);
		let type2 = dex.types.get(targets[1]);
		let type3 = dex.types.get(targets[2]);
		if (species.name !== "" && !species.exists && type1.name !== "" && !type1.exists) {
			const typeSearchResults = dex.dataSearch(targets[0], ['TypeChart']);
			const speciesSearchResults = dex.dataSearch(targets[0], ['Pokedex']);
			if (typeSearchResults && typeSearchResults[0].name !== "") {
				type1 = dex.types.get(typeSearchResults[0].name);
				imperfectMatch = true;
			} else if (speciesSearchResults && speciesSearchResults[0].name !== "") {
				species = dex.species.get(speciesSearchResults[0].name);
				imperfectMatch = true;
			} else {
				return this.sendReplyBox(Utils.html`${originalSearch} isn't a recognized type or Pokemon${Dex.gen > dex.gen ? ` in Gen ${dex.gen}` : ""}.`);
			}
		}

		if (type2.name !== "" && !type2.exists) {
			const searchResults = dex.dataSearch(targets[1], ['TypeChart']);
			if (searchResults && searchResults[0].name !== "") {
				type2 = dex.types.get(searchResults[0].name);
				imperfectMatch = true;
			} else {
				return this.sendReplyBox(Utils.html`${originalSearch} isn't a recognized type or Pokemon${Dex.gen > dex.gen ? ` in Gen ${dex.gen}` : ""}.`);
			}
		}

		if (type3.name !== "" && !type3.exists) {
			const searchResults = dex.dataSearch(targets[2], ['TypeChart']);
			if (searchResults && searchResults[0].name !== "") {
				type3 = dex.types.get(searchResults[0].name);
				imperfectMatch = true;
			} else {
				return this.sendReplyBox(Utils.html`${originalSearch} isn't a recognized type or Pokemon${Dex.gen > dex.gen ? ` in Gen ${dex.gen}` : ""}.`);
			}
		}

		const types = [];
		if (species.exists) {
			for (const type of species.types) {
				types.push(type);
			}
			target = species.name;
			isMatch = true;
		} else if (type1.exists) {
			types.push(type1.name);
			target = type1.name;
			isMatch = true;
		}

		let alreadyFoundType2 = false;
		let alreadyFoundType3 = false;
		if (types.toString().toLowerCase().includes(type2.name.toLowerCase())) {
			alreadyFoundType2 = true;
		}
		if (types.toString().toLowerCase().includes(type3.name.toLowerCase())) {
			alreadyFoundType3 = true;
		}

		if (isMatch) {
			const searchTarget = [];
			searchTarget.push(target);
			if (type2.exists && !alreadyFoundType2) {
				types.push(type2.name);
				searchTarget.push(type2.name);
			}
			if (type3.exists && !alreadyFoundType3) {
				types.push(type3.name);
				searchTarget.push(type3.name);
			}
			target = searchTarget.join("/");
		}

		if (imperfectMatch) {
			this.sendReply(`No Pok\u00e9mon or type named '${originalSearch}' was found${Dex.gen > dex.gen ? ` in Gen ${dex.gen}` : ""}. Searching for '${target}' instead.`);
		}
		const weaknesses = [];
		const resistances = [];
		const immunities = [];
		for (const type of dex.types.names()) {
			const notImmune = dex.getImmunity(type, types);
			if (notImmune || isInverse) {
				let typeMod = !notImmune && isInverse ? 1 : 0;
				typeMod += (isInverse ? -1 : 1) * dex.getEffectiveness(type, types);
				switch (typeMod) {
				case 1:
					weaknesses.push(type);
					break;
				case 2:
					weaknesses.push(`<b>${type}</b>`);
					break;
				case 3:
					weaknesses.push(`<b><i>${type}</i></b>`);
					break;
				case -1:
					resistances.push(type);
					break;
				case -2:
					resistances.push(`<b>${type}</b>`);
					break;
				case -3:
					resistances.push(`<b><i>${type}</i></b>`);
					break;
				}
			} else {
				immunities.push(type);
			}
		}

		const statuses: { [k: string]: string } = {
			brn: "Burn",
			frz: "Frozen",
			hail: "Hail damage",
			par: "Paralysis",
			powder: "Powder moves",
			prankster: "Prankster",
			sandstorm: "Sandstorm damage",
			tox: "Toxic",
			trapped: "Trapping",
		};
		for (const status in statuses) {
			if (!dex.getImmunity(status, types)) {
				immunities.push(statuses[status]);
			}
		}

		const buffer = [];
		buffer.push(`${species.exists ? `${target} (ignoring abilities):` : `${target}:`}`);
		buffer.push(`<span class="message-effect-weak">Weaknesses</span>: ${weaknesses.join(', ') || '<span class="gray">None</span>'}`);
		buffer.push(`<span class="message-effect-resist">Resistances</span>: ${resistances.join(', ') || '<span class="gray">None</span>'}`);
		buffer.push(`<span class="message-effect-immune">Immunities</span>: ${immunities.join(', ') || '<span class="gray">None</span>'}`);
		this.sendReplyBox(buffer.join('<br />'));
	},
	weaknesshelp: [
		`/weakness [pokemon] - Provides a Pok\u00e9mon's resistances, weaknesses, and immunities, ignoring abilities.`,
		`/weakness [type 1], [type 2] - Provides a type or type combination's resistances, weaknesses, and immunities, ignoring abilities.`,
		`/weakness [pokemon], [type 1], [type 2] - Provides a Pok\u00e9mon's type and type combination's resistances, weaknesses, and immunities, ignoring abilities.`,
		`!weakness [pokemon] - Shows everyone a Pok\u00e9mon's resistances, weaknesses, and immunities, ignoring abilities. Requires: + % @ # &`,
		`!weakness [type 1], [type 2] - Shows everyone a type or type combination's resistances, weaknesses, and immunities, ignoring abilities. Requires: + % @ # &`,
		`!weakness [pokemon], [type 1], [type 2] - Shows everyone a Pok\u00e9mon's type and type combination's resistances, weaknesses, and immunities, ignoring abilities. Requires: + % @ # &`,
	],

	eff: 'effectiveness',
	type: 'effectiveness',
	matchup: 'effectiveness',
	effectiveness(target, room, user) {
		const { dex, targets } = this.splitFormat(target.split(/[,/]/));
		if (targets.length !== 2) throw new Chat.ErrorMessage("Attacker and defender must be separated with a comma.");

		let searchMethods = ['types', 'moves', 'species'];
		const sourceMethods = ['types', 'moves'];
		const targetMethods = ['types', 'species'];
		let source;
		let defender;
		let foundData;
		let atkName;
		let defName;

		for (let i = 0; i < 2; ++i) {
			let method!: string;
			for (const m of searchMethods) {
				foundData = (dex as any)[m].get(targets[i]);
				if (foundData.exists) {
					method = m;
					break;
				}
			}
			if (!foundData.exists) return this.parse('/help effectiveness');
			if (!source && sourceMethods.includes(method)) {
				if (foundData.type) {
					source = foundData;
					atkName = foundData.name;
				} else {
					source = foundData.name;
					atkName = foundData.name;
				}
				searchMethods = targetMethods;
			} else if (!defender && targetMethods.includes(method)) {
				if (foundData.types) {
					defender = foundData;
					defName = `${foundData.name} (not counting abilities)`;
				} else {
					defender = { types: [foundData.name] };
					defName = foundData.name;
				}
				searchMethods = sourceMethods;
			}
		}

		if (!this.runBroadcast()) return;

		let factor = 0;
		if (dex.getImmunity(source, defender) ||
			source.ignoreImmunity && (source.ignoreImmunity === true || source.ignoreImmunity[source.type])) {
			let totalTypeMod = 0;
			if (source.effectType !== 'Move' || source.category !== 'Status' && (source.basePower || source.basePowerCallback)) {
				for (const type of defender.types) {
					const baseMod = dex.getEffectiveness(source, type);
					const moveMod = source.onEffectiveness?.call({ dex: Dex } as Battle, baseMod, null, type, source);
					totalTypeMod += typeof moveMod === 'number' ? moveMod : baseMod;
				}
			}
			factor = 2 ** totalTypeMod;
		}

		const hasThousandArrows = source.id === 'thousandarrows' && defender.types.includes('Flying');
		const additionalInfo = hasThousandArrows ? "<br />However, Thousand Arrows will be 1x effective on the first hit." : "";

		this.sendReplyBox(`${atkName} is ${factor}x effective against ${defName}.${additionalInfo}`);
	},
	effectivenesshelp: [
		`/effectiveness [attack], [defender] - Provides the effectiveness of a move or type on another type or a Pok\u00e9mon.`,
		`!effectiveness [attack], [defender] - Shows everyone the effectiveness of a move or type on another type or a Pok\u00e9mon.`,
	],

	cover: 'coverage',
	coverage(target, room, user) {
		if (!this.runBroadcast()) return;
		if (!target) return this.parse("/help coverage");

		const { dex, targets } = this.splitFormat(target.split(/[,+/]/));
		const sources: (string | Move)[] = [];
		let dispTable = false;
		const bestCoverage: { [k: string]: number } = {};
		let hasThousandArrows = false;

		for (const type of dex.types.names()) {
			// This command uses -5 to designate immunity
			bestCoverage[type] = -5;
		}

		for (let arg of targets) {
			arg = toID(arg);

			// arg is the gen?
			if (arg === dex.currentMod) continue;

			// arg is 'table' or 'all'?
			if (arg === 'table' || arg === 'all') {
				if (this.broadcasting) return this.sendReplyBox("The full table cannot be broadcast.");
				dispTable = true;
				continue;
			}

			// arg is a type?
			const argType = arg.charAt(0).toUpperCase() + arg.slice(1);
			let eff;
			if (dex.types.isName(argType)) {
				sources.push(argType);
				for (const type in bestCoverage) {
					if (!dex.getImmunity(argType, type)) continue;
					eff = dex.getEffectiveness(argType, type);
					if (eff > bestCoverage[type]) bestCoverage[type] = eff;
				}
				continue;
			}

			// arg is a move?
			const move = dex.moves.get(arg);
			if (!move.exists) {
				throw new Chat.ErrorMessage(`Type or move '${arg}' not found.`);
			} else if (move.gen > dex.gen) {
				throw new Chat.ErrorMessage(`Move '${arg}' is not available in Gen ${dex.gen}.`);
			}

			if (!move.basePower && !move.basePowerCallback) continue;
			if (move.id === 'thousandarrows') hasThousandArrows = true;
			sources.push(move);
			for (const type in bestCoverage) {
				if (move.id === "struggle") {
					eff = 0;
				} else {
					if (!dex.getImmunity(move.type, type) && !move.ignoreImmunity) continue;
					const baseMod = dex.getEffectiveness(move, type);
					const moveMod = move.onEffectiveness?.call({ dex } as Battle, baseMod, null, type, move as ActiveMove);
					eff = typeof moveMod === 'number' ? moveMod : baseMod;
				}
				if (eff > bestCoverage[type]) bestCoverage[type] = eff;
			}
		}
		if (sources.length === 0) {
			throw new Chat.ErrorMessage("No moves using a type table for determining damage were specified.");
		}
		if (sources.length > 4) throw new Chat.ErrorMessage("Specify a maximum of 4 moves or types.");

		// converts to fractional effectiveness, 0 for immune
		for (const type in bestCoverage) {
			if (bestCoverage[type] === -5) {
				bestCoverage[type] = 0;
				continue;
			}
			bestCoverage[type] = 2 ** bestCoverage[type];
		}

		if (!dispTable) {
			const buffer: string[] = [];
			const superEff: string[] = [];
			const neutral: string[] = [];
			const resists: string[] = [];
			const immune: string[] = [];

			for (const type in bestCoverage) {
				if (bestCoverage[type] === 0) {
					immune.push(type);
				} else if (bestCoverage[type] < 1) {
					resists.push(type);
				} else if (bestCoverage[type] > 1) {
					superEff.push(type);
				} else {
					neutral.push(type);
				}
			}
			buffer.push(`Coverage for ${sources.join(' + ')}:`);
			buffer.push(`<b><font color=#559955>Super Effective</font></b>: ${superEff.join(', ') || '<span class="gray">None</span>'}`);
			buffer.push(`<span class="message-effect-resist">Neutral</span>: ${neutral.join(', ') || '<span class="gray">None</span>'}`);
			buffer.push(`<span class="message-effect-weak">Resists</span>: ${resists.join(', ') || '<span class="gray">None</span>'}`);
			buffer.push(`<span class="message-effect-immune">Immunities</span>: ${immune.join(', ') || '<span class="gray">None</span>'}`);
			return this.sendReplyBox(buffer.join('<br />'));
		} else {
			let buffer = '<div class="scrollable"><table cellpadding="1" width="100%"><tr><th></th>';
			const icon: { [k: string]: string } = {};
			for (const type of dex.types.names()) {
				icon[type] = `<img src="https://${Config.routes.client}/sprites/types/${type}.png" width="32" height="14">`;
				// row of icons at top
				buffer += `<th>${icon[type]}</th>`;
			}
			buffer += '</tr>';
			for (const type1 of dex.types.names()) {
				// assembles the rest of the rows
				buffer += `<tr><th>${icon[type1]}</th>`;
				for (const type2 of dex.types.names()) {
					let typing: string;
					let cell = '<th ';
					let bestEff = -5;
					if (type1 === type2) {
						// when types are the same it's considered pure type
						typing = type1;
						bestEff = bestCoverage[type1];
					} else {
						typing = `${type1}/${type2}`;
						for (const move of sources) {
							let curEff = 0;
							if (typeof move === 'string') {
								if (!dex.getImmunity(move, type1) || !dex.getImmunity(move, type2)) {
									continue;
								}
								let baseMod = dex.getEffectiveness(move, type1);
								curEff += baseMod;
								baseMod = dex.getEffectiveness(move, type2);
								curEff += baseMod;
							} else {
								if ((!dex.getImmunity(move.type, type1) || !dex.getImmunity(move.type, type2)) && !move.ignoreImmunity) {
									continue;
								}
								let baseMod = dex.getEffectiveness(move.type, type1);
								let moveMod = move.onEffectiveness?.call({ dex } as Battle, baseMod, null, type1, move as ActiveMove);
								curEff += typeof moveMod === 'number' ? moveMod : baseMod;
								baseMod = dex.getEffectiveness(move.type, type2);
								moveMod = move.onEffectiveness?.call({ dex } as Battle, baseMod, null, type2, move as ActiveMove);
								curEff += typeof moveMod === 'number' ? moveMod : baseMod;
							}

							if (curEff > bestEff) bestEff = curEff;
						}
						if (bestEff === -5) {
							bestEff = 0;
						} else {
							bestEff = 2 ** bestEff;
						}
					}
					if (bestEff === 0) {
						cell += `bgcolor=#666666 title="${typing}"><font color=#000000>${bestEff}</font>`;
					} else if (bestEff < 1) {
						cell += `bgcolor=#AA5544 title="${typing}"><font color=#660000>${bestEff}</font>`;
					} else if (bestEff > 1) {
						cell += `bgcolor=#559955 title="${typing}"><font color=#003300>${bestEff}</font>`;
					} else {
						cell += `bgcolor=#6688AA title="${typing}"><font color=#000066>${bestEff}</font>`;
					}
					cell += '</th>';
					buffer += cell;
				}
			}
			buffer += '</table></div>';

			if (hasThousandArrows) {
				buffer += "<br /><b>Thousand Arrows has neutral type effectiveness on Flying-type Pok\u00e9mon if not already smacked down.";
			}

			this.sendReplyBox(`Coverage for ${sources.join(' + ')}:<br />${buffer}`);
		}
	},
	coveragehelp: [
		`/coverage [move 1], [move 2] ... - Provides the best effectiveness match-up against all defending types for given moves or attacking types`,
		`!coverage [move 1], [move 2] ... - Shows this information to everyone.`,
		`Adding the parameter 'all' or 'table' will display the information with a table of all type combinations.`,
	],

	statcalc(target, room, user) {
		if (!target) return this.parse("/help statcalc");
		if (!this.runBroadcast()) return;

		const targets = target.split(' ');

		let lvlSet = false;
		let natureSet = false;
		let ivSet = false;
		let evSet = false;
		let baseSet = false;
		let modSet = false;
		let realSet = false;

		let pokemon: StatsTable | undefined;
		let useStat: StatID | '' = '';

		let level = 100;
		let calcHP = false;
		let nature = 1.0;
		let iv = 31;
		let ev = 252;
		let baseStat = -1;
		let modifier = 0;
		let positiveMod = true;
		let realStat = 0;

		for (const arg of targets) {
			const lowercase = arg.toLowerCase();

			if (!lvlSet) {
				if (lowercase === 'lc') {
					level = 5;
					lvlSet = true;
					continue;
				} else if (lowercase === 'vgc') {
					level = 50;
					lvlSet = true;
					continue;
				} else if (lowercase.startsWith('lv') || lowercase.startsWith('level')) {
					level = parseInt(arg.replace(/\D/g, ''));
					lvlSet = true;
					if (isNaN(level)) {
						return this.sendReplyBox('Invalid value for level: ' + Utils.escapeHTML(arg));
					}
					if (level < 1 || level > 9999) {
						return this.sendReplyBox('Level should be between 1 and 9999.');
					}
					continue;
				}
			}

			if (!useStat) {
				switch (lowercase) {
				case 'hp':
				case 'hitpoints':
					calcHP = true;
					useStat = 'hp';
					continue;
				case 'atk':
				case 'attack':
					useStat = 'atk';
					continue;
				case 'def':
				case 'defense':
					useStat = 'def';
					continue;
				case 'spa':
					useStat = 'spa';
					continue;
				case 'spd':
				case 'sdef':
					useStat = 'spd';
					continue;
				case 'spe':
				case 'speed':
					useStat = 'spe';
					continue;
				}
			}

			if (!natureSet) {
				if (lowercase === 'boosting' || lowercase === 'positive') {
					nature = 1.1;
					natureSet = true;
					continue;
				} else if (lowercase === 'negative' || lowercase === 'inhibiting') {
					nature = 0.9;
					natureSet = true;
					continue;
				} else if (lowercase === 'neutral') {
					continue;
				}
			}

			if (!pokemon) {
				const testPoke = Dex.species.get(arg);
				if (testPoke.exists) {
					pokemon = testPoke.baseStats;
					baseSet = true;
					continue;
				}
			}

			if (!ivSet) {
				if (lowercase.endsWith('iv') || lowercase.endsWith('ivs')) {
					iv = parseInt(arg);
					ivSet = true;

					if (isNaN(iv)) {
						return this.sendReplyBox('Invalid value for IVs: ' + Utils.escapeHTML(arg));
					}

					continue;
				}
			}

			if (!evSet) {
				if (lowercase === 'invested' || lowercase === 'max') {
					evSet = true;
					if (lowercase === 'max' && !natureSet) {
						nature = 1.1;
						natureSet = true;
					}
				} else if (lowercase === 'uninvested') {
					ev = 0;
					evSet = true;
				} else if (lowercase.endsWith('ev') || lowercase.endsWith('evs') ||
					lowercase.endsWith('+') || lowercase.endsWith('-')) {
					ev = parseInt(arg);
					evSet = true;

					if (isNaN(ev)) {
						return this.sendReplyBox('Invalid value for EVs: ' + Utils.escapeHTML(arg));
					}
					if (ev > 255 || ev < 0) {
						return this.sendReplyBox('The amount of EVs should be between 0 and 255.');
					}

					if (!natureSet) {
						if (arg.includes('+')) {
							nature = 1.1;
							natureSet = true;
						} else if (arg.includes('-')) {
							nature = 0.9;
							natureSet = true;
						}
					}

					continue;
				}
			}

			if (!modSet) {
				if (['band', 'scarf', 'specs'].includes(arg)) {
					modifier = 1;
					modSet = true;
				} else if (arg.startsWith('+')) {
					modifier = parseInt(arg.charAt(1));
					modSet = true;
				} else if (arg.startsWith('-')) {
					positiveMod = false;
					modifier = parseInt(arg.charAt(1));
					modSet = true;
				}
				if (isNaN(modifier)) {
					return this.sendReplyBox('Invalid value for modifier: ' + Utils.escapeHTML(String(modifier)));
				}
				if (modifier > 6) {
					return this.sendReplyBox('Modifier should be a number between -6 and +6');
				}
				if (modSet) continue;
			}

			const tempStat = parseInt(arg);

			if (!realSet) {
				if (lowercase.endsWith('real')) {
					realStat = tempStat;
					realSet = true;

					if (isNaN(realStat)) {
						return this.sendReplyBox('Invalid value for target real stat: ' + Utils.escapeHTML(arg));
					}
					if (realStat < 0) {
						return this.sendReplyBox('The target real stat must be greater than 0.');
					}
					continue;
				}
			}

			if (!isNaN(tempStat) && !baseSet && tempStat > 0 && tempStat < 256) {
				baseStat = tempStat;
				baseSet = true;
			}
		}

		if (pokemon) {
			if (useStat) {
				baseStat = pokemon[useStat];
			} else {
				return this.sendReplyBox('No stat found.');
			}
		}

		if (realSet) {
			if (!baseSet) {
				if (calcHP) {
					baseStat = Math.ceil((100 * realStat - 10 - level * (Math.floor(ev / 4) + iv + 100)) / (2 * level));
				} else {
					if (!positiveMod) {
						realStat *= (2 + modifier) / 2;
					} else {
						realStat *= 2 / (2 + modifier);
					}

					baseStat = Math.ceil(
						(100 * Math.ceil(realStat) - nature * (level * (Math.floor(ev / 4) + iv) + 500)) /
						(2 * level * nature)
					);
				}
				if (baseStat < 0) {
					return this.sendReplyBox('No valid value for base stat possible with given parameters.');
				}
			} else if (!evSet) {
				if (calcHP) {
					ev = Math.ceil(100 * (realStat - 10) / level - 2 * (baseStat + 50));
				} else {
					if (!positiveMod) {
						realStat *= (2 + modifier) / 2;
					} else {
						realStat *= 2 / (2 + modifier);
					}

					ev = Math.ceil(-1 * (2 * (nature * (baseStat * level + 250) - 50 * Math.ceil(realStat))) / (level * nature));
				}
				ev -= 31;
				if (ev < 0) iv += ev;
				ev *= 4;
				if (iv < 0 || ev > 255) {
					return this.sendReplyBox(`No valid EV/IV combination possible with given parameters. Maybe try a different nature?${ev}`);
				}
			} else {
				return this.sendReplyBox('Too many parameters given; nothing to calculate.');
			}
		} else if (baseStat < 0) {
			return this.sendReplyBox('No valid value for base stat found.');
		}

		let output: number;

		if (calcHP) {
			output = (((iv + (2 * baseStat) + Math.floor(ev / 4) + 100) * level) / 100) + 10;
		} else {
			output = Math.floor(nature * Math.floor((((iv + (2 * baseStat) + Math.floor(ev / 4)) * level) / 100) + 5));
			if (positiveMod) {
				output *= (2 + modifier) / 2;
			} else {
				output *= 2 / (2 + modifier);
			}
		}
		return this.sendReplyBox(`Base ${baseStat} ${calcHP ? ' HP ' : ' '}at level ${level} with ${iv} IVs, ${ev}${nature === 1.1 ? '+' : nature === 0.9 ? '-' : ''} EVs${modifier > 0 && !calcHP ? ` at ${positiveMod ? '+' : '-'}${modifier}` : ''}: <b>${Math.floor(output)}</b>.`);
	},
	statcalchelp: [
		`/statcalc [level] [base stat] [IVs] [nature] [EVs] [modifier] (only base stat is required) - Calculates what the actual stat of a Pokémon is with the given parameters. For example, '/statcalc lv50 100 30iv positive 252ev scarf' calculates the speed of a base 100 scarfer with HP Ice in Battle Spot, and '/statcalc uninvested 90 neutral' calculates the attack of an uninvested Crobat.`,
		`!statcalc [level] [base stat] [IVs] [nature] [EVs] [modifier] (only base stat is required) - Shows this information to everyone.`,
		`Inputting 'hp' as an argument makes it use the formula for HP. Instead of giving nature, '+' and '-' can be appended to the EV amount (e.g. 252+ev) to signify a boosting or inhibiting nature.`,
		`An actual stat can be given in place of a base stat or EVs. In this case, the minimum base stat or EVs necessary to have that real stat with the given parameters will be determined. For example, '/statcalc 502real 252+ +1' calculates the minimum base speed necessary for a positive natured fully invested scarfer to outspeed`,
	],

	/*********************************************************
	 * Informational commands
	 *********************************************************/

	uptime(target, room, user) {
		if (!this.runBroadcast()) return;
		const uptime = process.uptime();
		let uptimeText;
		if (uptime > 24 * 60 * 60) {
			const uptimeDays = Math.floor(uptime / (24 * 60 * 60));
			uptimeText = `${uptimeDays} ${uptimeDays === 1 ? "day" : "days"}`;
			const uptimeHours = Math.floor(uptime / (60 * 60)) - uptimeDays * 24;
			if (uptimeHours) uptimeText += `, ${uptimeHours} ${uptimeHours === 1 ? "hour" : "hours"}`;
		} else {
			uptimeText = Chat.toDurationString(uptime * 1000);
		}
		this.sendReplyBox(`Uptime: <b>${uptimeText}</b>`);
	},
	uptimehelp: [`/uptime - Shows how long the server has been online for.`],

	st: 'servertime',
	servertime(target, room, user) {
		if (!this.runBroadcast()) return;
		const servertime = new Date();
		this.sendReplyBox(`Server time: <b>${servertime.toLocaleString()}</b>`);
	},
	servertimehelp: [`/servertime - Shows the current time where the server is.`],

	groups(target, room, user) {
		if (!this.runBroadcast()) return;
		target = toID(target);
		const showRoom = (target !== 'global');
		const showGlobal = (target !== 'room' && target !== 'rooms');

		const roomRanks = [
			`<strong>Room ranks</strong>`,
			`^ <strong>Prize Winner</strong> - They don't have any powers beyond a symbol.`,
			`+ <strong>Voice</strong> - They can use ! commands like !groups`,
			`% <strong>Driver</strong> - The above, and they can mute and warn`,
			`@ <strong>Moderator</strong> - The above, and they can room ban users`,
			`* <strong>Bot</strong> - An automated account that can mute, warn, and use HTML`,
			`# <strong>Room Owner</strong> - They are leaders of the room and can almost totally control it`,
		];

		const globalRanks = [
			`<strong>Global ranks</strong>`,
			`+ <strong>Global Voice</strong> - They can use ! commands like !groups`,
			`% <strong>Global Driver</strong> - Like Voice, and they can lock users and check for alts`,
			`@ <strong>Global Moderator</strong> - The above, and they can globally ban users`,
			`* <strong>Global Bot</strong> - An automated account that can use HTML anywhere`,
			`~ <strong>Global Administrator</strong> - They can do anything, like change what this message says and promote users globally`,
		];

		this.sendReplyBox(
			(showRoom ? roomRanks.map(str => this.tr(str)).join('<br />') : ``) +
			(showRoom && showGlobal ? `<br /><br />` : ``) +
			(showGlobal ? globalRanks.map(str => this.tr(str)).join('<br />') : ``)
		);
	},
	groupshelp: [
		`/groups - Explains what the symbols (like % and @) before people's names mean.`,
		`/groups [global|room] - Explains only global or room symbols.`,
		`!groups - Shows everyone that information. Requires: + % @ # ~`,
	],

	punishments(target, room, user) {
		if (!this.runBroadcast()) return;
		target = toID(target);
		const showRoom = (target !== 'global');
		const showGlobal = (target !== 'room' && target !== 'rooms');

		const roomPunishments = [
			`<strong>Room punishments</strong>:`,
			`<strong>warn</strong> - Displays a popup with the rules.`,
			`<strong>mute</strong> - Mutes a user (makes them unable to talk) for 7 minutes.`,
			`<strong>hourmute</strong> - Mutes a user for 60 minutes.`,
			`<strong>ban</strong> - Bans a user (makes them unable to join the room) for 2 days.`,
			`<strong>weekban</strong> - Bans a user from the room for a week.`,
			`<strong>blacklist</strong> - Bans a user for a year.`,
		];

		const globalPunishments = [
			`<strong>Global punishments</strong>:`,
			`<strong>lock</strong> - Locks a user (makes them unable to talk in any rooms or PM non-staff) for 2 days.`,
			`<strong>weeklock</strong> - Locks a user for a week.`,
			`<strong>namelock</strong> - Locks a user and prevents them from having a username for 2 days.`,
			`<strong>globalban</strong> - Globally bans (makes them unable to connect and play games) for a week.`,
		];

		const indefinitePunishments = [
			this.tr`<strong>Indefinite global punishments</strong>:`,
			this.tr`<strong>permalock</strong> - Issued for repeated instances of bad behavior and is rarely the result of a single action. ` +
			this.tr`These can be appealed in the <a href="https://www.smogon.com/forums/threads/discipline-appeal-rules.3583479/">Discipline Appeal</a>` +
			this.tr` forum after at least 3 months without incident.`,
			this.tr`<strong>permaban</strong> - Unappealable global ban typically issued for the most severe cases of offensive/inappropriate behavior.`,
		];

		this.sendReplyBox(
			(showRoom ? roomPunishments.map(str => this.tr(str)).join('<br />') : ``) +
			(showRoom && showGlobal ? `<br /><br />` : ``) +
			(showGlobal ? globalPunishments.map(str => this.tr(str)).join('<br />') : ``) +
			(showGlobal ? `<br /><br />${indefinitePunishments.join('<br />')}` : ``)
		);
	},
	punishmentshelp: [
		`/punishments - Explains punishments.`,
		`!punishments - Show everyone that information. Requires: + % @ # ~`,
	],

	repo: 'opensource',
	repository: 'opensource',
	git: 'opensource',
	opensource(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(
			`Pok&eacute;mon Showdown is open source:<br />` +
			`- Language: mostly TypeScript, a little PHP<br />` +
			`- <a href="https://github.com/smogon/pokemon-showdown/commits/master">What's new?</a><br />` +
			`- <a href="https://github.com/smogon/pokemon-showdown">Server source code</a><br />` +
			`- <a href="https://github.com/smogon/pokemon-showdown-client">Client source code</a><br />` +
			`- <a href="https://github.com/Zarel/Pokemon-Showdown-Dex">Dex source code</a><br />` +
			`- <a href="https://github.com/smogon/pokemon-showdown-loginserver">Login server source code</a>`
		);
	},
	opensourcehelp: [
		`/opensource - Links to PS's source code repository.`,
		`!opensource - Show everyone that information. Requires: + % @ # ~`,
	],

	staff(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(`<a href="https://www.smogon.com/forums/posts/10715136/">Pok&eacute;mon Showdown Staff List</a>`);
	},
	staffhelp: [`/staff - View the staff list.`],

	forums(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(`<a href="https://www.smogon.com/forums/forums/209/">Pok&eacute;mon Showdown Forums</a>`);
	},
	forumshelp: [`/forums - Links to the PS forums.`],

	privacypolicy(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox([
			this.tr`- We log PMs so you can report them - staff can't look at them without permission unless there's a law enforcement reason.`,
			this.tr`- We log IPs to enforce bans and mutes.`,
			this.tr`- We use cookies to save your login info and teams, and for Google Analytics and AdSense.`,
			this.tr`- For more information, you can read our <a href="https://${Config.routes.root}/privacy">full privacy policy.</a>`,
		].join(`<br />`));
	},
	privacypolicyhelp: [`/privacypolicy - Displays PS's privacy policy.`],

	suggest: 'suggestions',
	suggestion: 'suggestions',
	suggestions(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(`<a href="https://play.pokemonshowdown.com/suggestions">Make a suggestion for Pok&eacute;mon Showdown</a>`);
	},
	suggestionshelp: [`/suggestions - Links to the place to make suggestions for Pokemon Showdown.`],

	bugreport: 'bugs',
	bugreports: 'bugs',
	bugs(target, room, user) {
		if (!this.runBroadcast()) return;
		if (room?.battle) {
			this.sendReplyBox(`<center><button name="saveReplay"><i class="fa fa-upload"></i> Save Replay</button> &mdash; <a href="https://www.smogon.com/forums/threads/3520646/">Questions</a> &mdash; <a href="https://play.pokemonshowdown.com/bugs">Bug Reports</a></center>`);
		} else {
			this.sendReplyBox(
				`Have a replay showcasing a bug on Pok&eacute;mon Showdown?<br />` +
				`- <a href="https://www.smogon.com/forums/threads/3520646/">Questions</a><br />` +
				`- <a href="https://play.pokemonshowdown.com/bugs">Bug Reports</a> (ask in <a href="/help">Help</a> before posting if you're unsure)`
			);
		}
	},
	bugshelp: [`/bugs - Links to the various bug reporting services.`],

	optionbutton: 'optionsbutton',
	optionsbutton(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(`<button name="openOptions" class="button"><i style="font-size: 16px; vertical-align: -1px" class="fa fa-cog"></i> Options</button> (The Sound and Options buttons are at the top right, next to your username)`);
	},
	optionsbuttonhelp: [`/optionsbutton - Provides a button to the Options menu.`],

	soundsbutton: 'soundbutton',
	volumebutton: 'soundbutton',
	soundbutton(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(`<button name="openSounds" class="button"><i style="font-size: 16px; vertical-align: -1px" class="fa fa-volume-up"></i> Sound</button> (The Sound and Options buttons are at the top right, next to your username)`);
	},
	soundbuttonhelp: [`/soundbutton - Provides a button to the Sounds menu.`],

	introduction: 'intro',
	intro(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(
			`New to competitive Pok&eacute;mon?<br />` +
			`- <a href="https://www.smogon.com/forums/threads/3676132/">Beginner's Guide to Pok&eacute;mon Showdown</a><br />` +
			`- <a href="https://www.smogon.com/dp/articles/intro_comp_pokemon">An introduction to competitive Pok&eacute;mon</a><br />` +
			`- <a href="https://www.smogon.com/sm/articles/sm_tiers">What do 'OU', 'UU', etc mean?</a><br />` +
			`- <a href="https://www.smogon.com/dex/sv/formats/">What are the rules for each format?</a><br />` +
			`- <a href="https://www.smogon.com/sv/articles/clauses">What is 'Sleep Clause' and other clauses?</a><br />` +
			`- <a href="https://www.smogon.com/articles/getting-started">Next Steps for Competitive Battling</a>`
		);
	},
	introhelp: [
		`/intro - Provides an introduction to competitive Pok\u00e9mon.`,
		`!intro - Show everyone that information. Requires: + % @ # ~`,
	],

	mentoring: 'smogintro',
	smogonintro: 'smogintro',
	smogintro(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(
			`Welcome to Smogon's official simulator! The <a href="https://www.smogon.com/forums/forums/intro_hub">Information & Resources forum</a> can help you get integrated into the community.<br />` +
			`- <a href="https://www.smogon.com/forums/threads/3710821/">Introduction to Smogon</a><br />` +
			`- <a href="https://www.smogon.com/forums/threads/3652546/">Smogon Discord Directory</a><br />`
		);
	},
	smogintrohelp: [`/smogintro - Provides an introduction to Smogon.`],

	bsscalc: 'calc',
	calculator: 'calc',
	cantsaycalc: 'calc',
	damagecalculator: 'calc',
	damagecalc: 'calc',
	honkalculator: 'calc',
	honkocalc: 'calc',
	randomscalc: 'calc',
	randbatscalc: 'calc',
	rcalc: 'calc',
	calc(target, room, user, connection, cmd) {
		if (cmd === 'calc' && target) return this.run('calculate');
		if (!this.runBroadcast()) return;
		const DEFAULT_CALC_COMMANDS = ['honkalculator', 'honkocalc'];
		const RANDOMS_CALC_COMMANDS = ['randomscalc', 'randbatscalc', 'rcalc'];
		const BATTLESPOT_CALC_COMMANDS = ['bsscalc', 'cantsaycalc'];
		const SUPPORTED_BATTLESPOT_FORMATS = [
			'gen5gbusingles', 'gen5gbudoubles', 'gen6battlespotsingles', 'gen6battlespotdoubles', 'gen6battlespottriples', 'gen7battlespotsingles', 'gen7battlespotdoubles', 'gen7bssfactory',
		];
		const isRandomBattle = (room?.battle && (room.battle.format.endsWith('randombattle') ||
			room.battle.format.endsWith('randomdoublesbattle')));
		const isBattleSpotBattle = (room?.battle && (SUPPORTED_BATTLESPOT_FORMATS.includes(room.battle.format) ||
			room.battle.format.includes("battlespotspecial")));
		const { dex } = this.extractFormat(room?.battle?.format);

		if (RANDOMS_CALC_COMMANDS.includes(cmd) ||
			(isRandomBattle && !DEFAULT_CALC_COMMANDS.includes(cmd) && !BATTLESPOT_CALC_COMMANDS.includes(cmd))) {
			return this.sendReplyBox(
				`Random Battles damage calculator. (Courtesy of dhelmise &amp; jetou)<br />` +
				`- <a href="https://calc.pokemonshowdown.com/randoms.html?gen=${dex.gen}">Random Battles Damage Calculator</a>`
			);
		}
		if (BATTLESPOT_CALC_COMMANDS.includes(cmd) || (isBattleSpotBattle && !DEFAULT_CALC_COMMANDS.includes(cmd))) {
			return this.sendReplyBox(
				`Battle Spot damage calculator. (Courtesy of cant say &amp; LegoFigure11)<br />` +
				`- <a href="https://cantsay.github.io/">Battle Spot Damage Calculator</a>`
			);
		}
		this.sendReplyBox(
			`Pok&eacute;mon Showdown! damage calculator. (Courtesy of Honko, Austin, dhelmise, &amp; jetou)<br />` +
			`- <a href="https://calc.pokemonshowdown.com/index.html?gen=${dex.gen}">Damage Calculator</a>`
		);
	},
	calchelp: [
		`/calc - Provides a link to a damage calculator`,
		`/rcalc - Provides a link to the random battles damage calculator`,
		`/bsscalc - Provides a link to the Battle Spot damage calculator`,
		`!calc - Shows everyone a link to a damage calculator. Requires: + % @ # ~`,
	],

	capintro: 'cap',
	cap(target, room, user) {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(
			`An introduction to the Create-A-Pok&eacute;mon project:<br />` +
			`- <a href="https://www.smogon.com/cap/">CAP project website and description</a><br />` +
			`- <a href="https://www.smogon.com/forums/forums/66/">CAP project discussion forum</a><br />` +
			`- <a href="https://www.smogon.com/forums/threads/48782/">What Pok&eacute;mon have been made?</a><br />` +
			`- <a href="https://www.smogon.com/forums/forums/477">Talk about the metagame here</a><br />` +
			`- <a href="https://www.smogon.com/forums/threads/3718107/">Sample SV CAP teams</a>`
		);
	},
	caphelp: [
		`/cap - Provides an introduction to the Create-A-Pok\u00e9mon project.`,
		`!cap - Show everyone that information. Requires: + % @ # ~`,
	],

	battlerules(target, room, user) {
		return this.parse(`/join view-battlerules`);
	},
	battleruleshelp: [
		`/battlerules - Provides information on the rules that can be added to tournament and challenge battles.`,
	],

	banlists: 'formathelp',
	tier: 'formathelp',
	tiers: 'formathelp',
	formats: 'formathelp',
	tiershelp: 'formathelp',
	formatshelp: 'formathelp',
	viewbanlist: 'formathelp',
	async formathelp(target, room, user, connection, cmd) {
		if (!target && this.runBroadcast()) {
			return this.sendReplyBox(
				`- <a href="https://www.smogon.com/forums/forums/smogon-metagames.725/">Smogon Metagames</a><br />` +
				`- <a href="https://www.smogon.com/forums/threads/3628026/">Tiering Framework</a><br />` +
				`- <a href="https://www.smogon.com/forums/threads/3644714/">Tiering FAQ</a><br />` +
				"<br /><em>Type /tier <strong>[tier name]</strong> to get details, banlists, and helpful resources like sample teams for any tier!</em>"
			);
		}

		const isOMSearch = (cmd === 'om' || cmd === 'othermetas');

		let targetId = toID(target);
		if (targetId === 'ladder') targetId = 'search' as ID;
		if (targetId === 'all') targetId = '';
		const { totalMatches, sections } = findFormats(targetId, isOMSearch);

		if (!totalMatches) return this.errorReply("No matched formats found.");

		const format = totalMatches === 1 ? Dex.formats.get(Object.values(sections)[0].formats[0]) : null;

		if (!this.runBroadcast(`!formathelp ${format ? format.id : target}`)) return;

		if (format) {
			const rules: string[] = [];
			let rulesetHtml = '';
			if (['Format', 'Rule', 'ValidatorRule'].includes(format.effectType)) {
				if (format.ruleset?.length) {
					rules.push(`<b>Ruleset</b> - ${Utils.escapeHTML(format.ruleset.join(", "))}`);
				}
				if (format.banlist?.length) {
					rules.push(`<b>Bans</b> - ${Utils.escapeHTML(format.banlist.join(", "))}`);
				}
				if (format.unbanlist?.length) {
					rules.push(`<b>Unbans</b> - ${Utils.escapeHTML(format.unbanlist.join(", "))}`);
				}
				if (format.restricted?.length) {
					rules.push(`<b>Restricted</b> - ${Utils.escapeHTML(format.restricted.join(", "))}`);
				}
				if (rules.length > 0) {
					rulesetHtml = `<details class="details"><summary>Banlist/Ruleset</summary>${rules.join("<br />")}</details>`;
				} else {
					rulesetHtml = `No ruleset found for ${format.name}`;
				}
			}
			const formatDesc = format.desc || '';
			const descHtml: string[] = [];
			const data = await getFormatResources(format.id);
			if (data) {
				for (const { resource_name, url } of data.resources) {
					let rn = resource_name;
					rn = rn.replace(/ thread$/gi, '');
					rn = rn.replace(/Pokemon Showdown/gi, 'PS');
					rn = rn.split(' ').map((x: string) => x[0].toUpperCase() + x.substr(1)).join(' ');
					descHtml.push(`&bullet; <a href="${url}">${rn}</a>`);
				}
			} else if (format.threads?.length) {
				descHtml.push(...format.threads);
			} else {
				const genID = ['rb', 'gs', 'rs', 'dp', 'bw', 'xy', 'sm', 'ss', 'sv'];
				const gen = Dex.forFormat(format).gen;
				descHtml.push(`This format has no resources linked on its <a href="https://www.smogon.com/dex/${genID[gen - 1] || 'sv'}/formats/">Smogon Dex page</a>. ` +
					`Please contact a <a href="https://www.smogon.com/forums/forums/757/">C&amp;C Leader</a> to resolve this. ` +
					`Alternatively, if this format can't have a page on the Smogon Dex, message <username>dhelmise</username>.<br />`);
			}
			return this.sendReplyBox(`<h2>${format.name}</h2><hr />${formatDesc ? formatDesc + '<hr />' : ''}${descHtml.join("<br />")}${rulesetHtml ? `<br />${rulesetHtml}` : ''}`);
		}

		let tableStyle = `border:1px solid gray; border-collapse:collapse`;

		if (this.broadcasting) {
			tableStyle += `; display:inline-block; max-height:240px;" class="scrollable`;
		}

		// Build tables
		const buf = [`<table style="${tableStyle}" cellspacing="0" cellpadding="5">`];
		for (const sectionId in sections) {
			buf.push(Utils.html`<th style="border:1px solid gray" colspan="2">${sections[sectionId].name}</th>`);
			for (const section of sections[sectionId].formats) {
				const subformat = Dex.formats.get(section);
				const nameHTML = Utils.escapeHTML(subformat.name);
				const desc = subformat.desc ? [subformat.desc] : [];
				const data = await getFormatResources(subformat.id);
				if (data) {
					for (const { resource_name, url } of data.resources) {
						desc.push(`&bullet; <a href="${url}">${resource_name}</a>`);
					}
				}
				const descHTML = desc.length ? desc.join("<br />") : "&mdash;";
				buf.push(`<tr><td style="border:1px solid gray">${nameHTML}</td><td style="border: 1px solid gray; margin-left:10px">${descHTML}</td></tr>`);
			}
		}
		buf.push(`</table>`);
		return this.sendReply(`|c|${user.getIdentity(room)}|/raw ${buf.join("")}`);
	},
	formathelphelp: [
		`/formathelp [format] - Provides information on the given [format].`,
		`If no format is given, provides information on how tiers work.`,
	],

	roomhelp(target, room, user) {
		room = this.requireRoom();
		this.checkBroadcast(false, '!htmlbox');
		if (this.broadcastMessage) this.checkCan('declare', null, room);

		if (!this.runBroadcast(false, '!htmlbox')) return;

		const strings = [
			[
				`<strong>Room drivers (%)</strong> can use:`,
				`- /warn OR /k <em>username</em>: warn a user and show the Pok&eacute;mon Showdown rules`,
				`- /mute OR /m <em>username</em>: 7 minute mute`,
				`- /hourmute OR /hm <em>username</em>: 60 minute mute`,
				`- /unmute <em>username</em>: unmute`,
				`- /hidetext <em>username</em>: hide a user's messages from the room`,
				`- /announce OR /wall <em>message</em>: make an announcement`,
				`- /modlog <em>username</em>: search the moderator log of the room`,
				`- /modnote <em>note</em>: add a moderator note that can be read through modlog`,
				`- !show [image or youtube link]: display given media in chat.`,
			],
			[
				`<strong>Room moderators (@)</strong> can also use:`,
				`- /roomban OR /rb <em>username</em>: ban user from the room`,
				`- /roomunban <em>username</em>: unban user from the room`,
				`- /roomvoice <em>username</em>: appoint a room voice`,
				`- /roomdevoice <em>username</em>: remove a room voice`,
				`- /staffintro <em>intro</em>: set the staff introduction that will be displayed for all staff joining the room`,
				`- /roomsettings: change a variety of room settings, namely modchat`,
			],
			[
				`<strong>Room owners (#)</strong> can also use:`,
				`- /roomintro <em>intro</em>: set the room introduction that will be displayed for all users joining the room`,
				`- /rules <em>rules link</em>: set the room rules link seen when using /rules`,
				`- /roommod, /roomdriver <em>username</em>: appoint a room moderator/driver`,
				`- /roomdemod, /roomdedriver <em>username</em>: remove a room moderator/driver`,
				`- /roomdeauth <em>username</em>: remove all room auth from a user`,
				`- /declare <em>message</em>: make a large blue declaration to the room`,
				`- !htmlbox <em>HTML code</em>: broadcast a box of HTML code to the room`,
				`- /roomsettings: change a variety of room settings, including modchat, capsfilter, etc`,
			],
			[
				`More detailed help can be found in the <a href="https://www.smogon.com/forums/posts/6774654/">roomauth guide</a>`,
			],
			[
				`Tournament Help:`,
				`- /tour create <em>format</em>, elimination: create a new single elimination tournament in the current room.`,
				`- /tour create <em>format</em>, roundrobin: create a new round robin tournament in the current room.`,
				`- /tour end: forcibly end the tournament in the current room`,
				`- /tour start: start the tournament in the current room`,
				`- /tour banlist [pokemon], [talent], [...]: ban moves, abilities, Pokémon or items from being used in a tournament (it must be created first)`,
			],
			[
				`More detailed help can be found in the <a href="https://www.smogon.com/forums/posts/6777489/">tournaments guide</a>`,
			],
		];

		this.sendReplyBox(
			strings.map(par => par.map(string => this.tr(string)).join('<br />')).join('<br /><br />')
		);
	},

	restarthelp(target, room, user) {
		if (!Rooms.global.lockdown) this.checkCan('lockdown');
		if (!this.runBroadcast()) return;
		this.sendReplyBox(
			`The server is restarting. Things to know:<br />` +
			`- We wait a few minutes before restarting so people can finish up their battles<br />` +
			`- The restart itself will take around 0.6 seconds<br />` +
			`- Your ladder ranking and teams will not change<br />` +
			`- We are restarting to update Pok&eacute;mon Showdown to a newer version`
		);
	},

	rule: 'rules',
	roomrules: "rules",
	rules(target, room, user, connection, cmd) {
		if (!target) {
			if (!this.runBroadcast()) return;
			this.sendReplyBox(
				`${room ? this.tr`Please follow the rules:` + '<br />' : ``}` +
				`${room?.settings.rulesLink ? Utils.html`- <a href="${room.settings.rulesLink}">${this.tr`${room.title} room rules`}</a><br />` : ``}` +
				`- <a href="https://${Config.routes.root}${this.tr`/rules`}">${this.tr`Global Rules`}</a>`
			);
			return;
		}
		if (!room) {
			throw new Chat.ErrorMessage(`This is not a room you can set the rules of.`);
		}
		const possibleRoom = Rooms.search(toID(target));
		const { totalMatches: formatMatches } = findFormats(toID(target));
		if (formatMatches && possibleRoom && cmd !== 'roomrules') {
			throw new Chat.ErrorMessage([
				`'${target}' is both a room and a tier.`,
				`If you were looking for rules of that room, use /roomrules [room].`,
				`Otherwise, use /tier [tiername].`,
			]);
		}

		if (possibleRoom) {
			const rulesLink = possibleRoom.settings.rulesLink;
			return this.sendReplyBox(
				`${possibleRoom.title}'s rules:<br />` +
				`${rulesLink ? Utils.html`- <a href="${rulesLink}">${this.tr`${possibleRoom.title} room rules`}</a><br />` : `None set.`}`
			);
		}

		if (formatMatches > 0 && cmd !== 'roomrules') {
			return this.parse(`/tier ${target}`);
		}
		this.checkCan('editroom', null, room);
		if (target.length > 150) {
			throw new Chat.ErrorMessage(`Error: Room rules link is too long (must be under 150 characters). You can use a URL shortener to shorten the link.`);
		}

		target = target.trim();

		if (target === 'delete' || target === 'remove') {
			if (!room.settings.rulesLink) throw new Chat.ErrorMessage(`This room does not have rules set to remove.`);
			delete room.settings.rulesLink;
			this.privateModAction(`${user.name} has removed the room rules link.`);
			this.modlog('RULES', null, `removed room rules link`);
		} else {
			room.settings.rulesLink = target;
			this.privateModAction(`${user.name} changed the room rules link to: ${target}`);
			this.modlog('RULES', null, `changed link to: ${target}`);
		}

		room.saveSettings();
	},
	ruleshelp: [
		`/rules - Show links to room rules and global rules.`,
		`!rules - Show everyone links to room rules and global rules. Requires: + % @ # ~`,
		`/rules [url] - Change the room rules URL. Requires: # ~`,
		`/rules remove - Removes a room rules URL. Requires: # ~`,
	],

	faq(target, room, user) {
		target = toID(this.splitOne(target)[0]);
		const showAll = target === 'all';
		if (showAll && this.shouldBroadcast()) {
			throw new Chat.ErrorMessage(this.tr`You cannot broadcast all FAQs at once.`);
		}
		const buffer = [];
		if (showAll || target === 'staff') {
			buffer.push(`<a href="https://pokemonshowdown.com/${this.tr`pages/staff`}">${this.tr`Staff FAQ`}</a>`);
		}
		if (showAll || target === 'autoconfirmed' || target === 'ac') {
			buffer.push(this.tr`A user is autoconfirmed when they have won at least one rated battle and have been registered for one week or longer. In order to prevent spamming and trolling, most chatrooms only allow autoconfirmed users to chat. If you are not autoconfirmed, you can politely PM a staff member (staff have %, @, or # in front of their username) in the room you would like to chat and ask them to disable modchat. However, staff are not obligated to disable modchat.`);
			if (!this.shouldBroadcast()) void this.parse(`/regtime`);
		}
		if (showAll || target === 'ladder' || target === 'ladderhelp' || target === 'decay') {
			buffer.push(`<a href="https://${Config.routes.root}/${this.tr`pages/ladderhelp`}">${this.tr`How the ladder works`}</a>`);
		}
		if (showAll || target === 'tiering' || target === 'tiers' || target === 'tier') {
			buffer.push(`<a href="https://www.smogon.com/ingame/battle/tiering-faq">${this.tr`Tiering FAQ`}</a>`);
		}
		if (showAll || ['badge', 'badges', 'badgeholders'].includes(target)) {
			buffer.push(`<a href="https://www.smogon.com/forums/threads/60351/">${this.tr`Badge FAQ`}</a>`);
		}
		if (showAll || target === 'rng') {
			buffer.push(`<a href="https://${Config.routes.root}/${this.tr`pages/rng`}">${this.tr`Common misconceptions about our RNG`}</a>`);
		}
		if (showAll || ['tournaments', 'tournament', 'tours', 'tour'].includes(target)) {
			buffer.push(this.tr`To join a room tournament, click the <strong>Join!</strong> button or type the command <code>/tour join</code> in the room's chat. You can check if your team is legal for the tournament by clicking the <strong>Validate</strong> button once you've joined and selected a team. To battle your opponent in the tournament, click the <strong>Ready!</strong> button when it appears. There are two different types of room tournaments: elimination (if a user loses more than a certain number of times, they are eliminated) and round robin (all users play against each other, and the user with the most wins is the winner).`);
		}
		if (showAll || ['vpn', 'proxy'].includes(target)) {
			buffer.push(`<a href="https://pokemonshowdown.com/${this.tr`pages/proxyhelp`}">${this.tr`Proxy lock help`}</a>`);
		}
		if (showAll || ['ca', 'customavatar', 'customavatars'].includes(target)) {
			buffer.push(this.tr`Custom avatars are given to Global Staff members, contributors (coders and spriters) to Pokemon Showdown, and Smogon badgeholders at the discretion of the PS! Administrators. They are also sometimes given out as rewards for major events such as PSPL (Pokemon Showdown Premier League). If you're curious, you can view the entire list of <a href="https://www.smogon.com/smeargle/customs/">custom avatars</a>.`);
		}
		if (showAll || ['privacy', 'private'].includes(target)) {
			buffer.push(`<a href="https://pokemonshowdown.com/${this.tr`pages/privacy`}">${this.tr`Pokémon Showdown privacy policy`}</a>`);
		}
		if (showAll || ['lostpassword', 'password', 'lostpass'].includes(target)) {
			buffer.push(`Until an email server for Pokemon Showdown is set up, <b>it is no longer possible to reset the password for your account</b>`);
		}
		if (!buffer.length && target) {
			this.errorReply(`'${target}' is an invalid FAQ.`);
			return this.parse(`/help faq`);
		}
		if (!target || showAll) {
			buffer.unshift(`<a href="https://pokemonshowdown.com/${this.tr`pages/faq`}">${this.tr`Frequently Asked Questions`}</a>`);
		}
		if (!this.runBroadcast()) return;
		this.sendReplyBox(buffer.join(`<br />`));
	},
	faqhelp: [
		`/faq [topic] - Provides a link that answers the FAQ topic. List of FAQ topics: autoconfirmed, badges, customavatar, decay, ladder, lostpassword, privacy, proxy, rng, staff, tiers, tournaments.`,
		`!faq [topic] - Shows to other users a link that answers the FAQ topic. List of FAQ topics: autoconfirmed, badges, customavatar, decay, ladder, lostpassword, privacy, proxy, rng, staff, tiers, tournaments. Requires: + % @ # ~`,
	],

	analysis: 'smogdex',
	strategy: 'smogdex',
	smogdex(target, room, user) {
		if (!target) return this.parse('/help smogdex');
		if (!this.runBroadcast()) return;

		const targets = target.split(',');
		let pokemon = Dex.species.get(targets[0]);
		const item = Dex.items.get(targets[0]);
		const move = Dex.moves.get(targets[0]);
		const ability = Dex.abilities.get(targets[0]);
		const format = Dex.formats.get(targets[0]);
		let atLeastOne = false;
		let generation = (targets[1] || 'sv').trim().toLowerCase();
		let genNumber = 9;
		const extraFormat = Dex.formats.get(targets[2]);

		if (['9', 'gen9', 'nine', 'sv'].includes(generation)) {
			generation = 'sv';
		} else if (['8', 'gen8', 'eight', 'ss', 'swsh'].includes(generation)) {
			generation = 'ss';
			genNumber = 8;
		} else if (['7', 'gen7', 'seven', 'sm', 'sumo', 'usm', 'usum'].includes(generation)) {
			generation = 'sm';
			genNumber = 7;
		} else if (['6', 'gen6', 'oras', 'six', 'xy'].includes(generation)) {
			generation = 'xy';
			genNumber = 6;
		} else if (['5', 'b2w2', 'bw', 'bw2', 'five', 'gen5'].includes(generation)) {
			generation = 'bw';
			genNumber = 5;
		} else if (['4', 'dp', 'dpp', 'four', 'gen4', 'hgss'].includes(generation)) {
			generation = 'dp';
			genNumber = 4;
		} else if (['3', 'adv', 'frlg', 'gen3', 'rs', 'rse', 'three'].includes(generation)) {
			generation = 'rs';
			genNumber = 3;
		} else if (['2', 'gen2', 'gs', 'gsc', 'two'].includes(generation)) {
			generation = 'gs';
			genNumber = 2;
		} else if (['1', 'gen1', 'one', 'rb', 'rby', 'rgy'].includes(generation)) {
			generation = 'rb';
			genNumber = 1;
		} else {
			generation = 'sv';
		}

		// Pokemon
		if (pokemon.exists) {
			atLeastOne = true;
			if (genNumber < pokemon.gen) {
				return this.sendReplyBox(`${pokemon.name} did not exist in ${generation.toUpperCase()}!`);
			}

			if ((pokemon.battleOnly && pokemon.baseSpecies !== 'Greninja') ||
				['Keldeo', 'Genesect'].includes(pokemon.baseSpecies)) {
				pokemon = Dex.species.get(pokemon.changesFrom || pokemon.baseSpecies);
			}

			let formatName = extraFormat.name;
			let formatId: string = extraFormat.id;
			if (formatName.startsWith('[Gen ') && formatName.slice(6, 8) === '] ') {
				formatName = formatName.slice(8);
				formatId = toID(formatName);
			}
			if (formatId === 'anythinggoes') {
				formatId = 'ag';
			} else if (formatId === 'battlespotdoubles') {
				formatId = 'battle_spot_doubles';
			} else if (formatId === 'battlespottriples') {
				formatId = 'battle_spot_triples';
				if (genNumber > 6) {
					return this.sendReplyBox(`Triples formats are not an available format in Pok&eacute;mon generation ${generation.toUpperCase()}.`);
				}
			} else if (formatId === 'doublesou') {
				formatId = 'doubles';
			} else if (formatId === 'balancedhackmons') {
				formatId = 'bh';
			} else if (formatId === 'battlespotsingles') {
				formatId = 'battle_spot_singles';
			} else if (formatId === 'ubers') {
				formatId = 'uber';
			} else if (formatId.includes('vgc')) {
				formatId = 'vgc' + formatId.slice(-2);
				formatName = 'VGC 20' + formatId.slice(-2);
			} else if (extraFormat.effectType !== 'Format') {
				formatName = formatId = '';
			}
			const supportedLanguages: { [k: string]: string } = {
				spanish: 'es',
				french: 'fr',
				italian: 'it',
				german: 'de',
				portuguese: 'pt',
			};
			let id = pokemon.name.toLowerCase();
			if (id === 'meowstic') id = 'meowstic-m';
			if (id === 'zygarde-10%') id = 'zygarde-10';
			if (['ou', 'uu'].includes(formatId) && generation === 'sm' &&
				room?.settings.language && room.settings.language in supportedLanguages) {
				// Limited support for translated analysis
				// Translated analysis do not support automatic redirects from a id to the proper page
				this.sendReplyBox(
					Utils.html`<a href="https://www.smogon.com/dex/${generation}/pokemon/${id}/${formatId}/?lang=${supportedLanguages[room.settings.language]}">${generation.toUpperCase()} ${formatName} ${pokemon.name} analysis</a>, brought to you by <a href="https://www.smogon.com">Smogon University</a>`
				);
			} else if (['ou', 'uu'].includes(formatId) && generation === 'sm') {
				this.sendReplyBox(
					Utils.html`<a href="https://www.smogon.com/dex/${generation}/pokemon/${id}/${formatId}">${generation.toUpperCase()} ${formatName} ${pokemon.name} analysis</a>, brought to you by <a href="https://www.smogon.com">Smogon University</a><br />` +
					`Other languages: <a href="https://www.smogon.com/dex/${generation}/pokemon/${id}/${formatId}/?lang=es">Español</a>, <a href="https://www.smogon.com/dex/${generation}/pokemon/${id}/${formatId}/?lang=fr">Français</a>, <a href="https://www.smogon.com/dex/${generation}/pokemon/${id}/${formatId}/?lang=it">Italiano</a>, ` +
					`<a href="https://www.smogon.com/dex/${generation}/pokemon/${id}/${formatId}/?lang=de">Deutsch</a>, <a href="https://www.smogon.com/dex/${generation}/pokemon/${id}/${formatId}/?lang=pt">Português</a>`
				);
			} else {
				this.sendReplyBox(Utils.html`<a href="https://www.smogon.com/dex/${generation}/pokemon/${id}${(formatId ? '/' + formatId : '')}">${generation.toUpperCase()} ${formatName} ${pokemon.name} analysis</a>, brought to you by <a href="https://www.smogon.com">Smogon University</a>`);
			}
		}

		// Item
		if (item.exists && genNumber > 1 && item.gen <= genNumber) {
			atLeastOne = true;
			this.sendReplyBox(`<a href="https://www.smogon.com/dex/${generation}/items/${item.id}">${generation.toUpperCase()} ${item.name} item analysis</a>, brought to you by <a href="https://www.smogon.com">Smogon University</a>`);
		}

		// Ability
		if (ability.exists && genNumber > 2 && ability.gen <= genNumber) {
			atLeastOne = true;
			this.sendReplyBox(`<a href="https://www.smogon.com/dex/${generation}/abilities/${ability.id}">${generation.toUpperCase()} ${ability.name} ability analysis</a>, brought to you by <a href="https://www.smogon.com">Smogon University</a>`);
		}

		// Move
		if (move.exists && move.gen <= genNumber) {
			atLeastOne = true;
			this.sendReplyBox(`<a href="https://www.smogon.com/dex/${generation}/moves/${toID(move.name)}">${generation.toUpperCase()} ${move.name} move analysis</a>, brought to you by <a href="https://www.smogon.com">Smogon University</a>`);
		}

		// Format
		if (format.id) {
			let formatName = format.name;
			let formatId: string = format.id;
			if (formatName.startsWith('[Gen ') && formatName.slice(6, 8) === '] ') {
				formatName = formatName.slice(8);
				formatId = toID(formatName);
			}
			if (formatId === 'anythinggoes') {
				formatId = 'ag';
			} else if (formatId === 'battlespotdoubles') {
				formatId = 'battle_spot_doubles';
			} else if (formatId === 'battlespottriples') {
				formatId = 'battle_spot_triples';
				if (genNumber > 6) {
					return this.sendReplyBox(`Triples formats are not an available format in Pok&eacute;mon generation ${generation.toUpperCase()}.`);
				}
			} else if (formatId === 'doublesou') {
				formatId = 'doubles';
			} else if (formatId === 'balancedhackmons') {
				formatId = 'bh';
			} else if (formatId === 'battlespotsingles') {
				formatId = 'battle_spot_singles';
			} else if (formatId === 'ubers') {
				formatId = 'uber';
			} else if (formatId.includes('vgc')) {
				formatId = `vgc${formatId.slice(-2)}`;
				formatName = `VGC 20${formatId.slice(-2)}`;
			} else if (format.effectType !== 'Format') {
				formatName = formatId = '';
			}
			if (formatName) {
				atLeastOne = true;
				this.sendReplyBox(Utils.html`<a href="https://www.smogon.com/dex/${generation}/formats/${formatId}">${generation.toUpperCase()} ${formatName} format analysis</a>, brought to you by <a href="https://www.smogon.com">Smogon University</a>`);
			}
		}

		if (!atLeastOne) {
			return this.sendReplyBox(`Pok&eacute;mon, item, move, ability, or format not found for generation ${generation.toUpperCase()}.`);
		}
	},
	smogdexhelp: [
		`/analysis [pokemon], [generation], [format] - Links to the Smogon University analysis for this Pok\u00e9mon in the given generation.`,
		`!analysis [pokemon], [generation], [format] - Shows everyone this link. Requires: + % @ # ~`,
	],

	bulbapedia(target, broadcast, user) {
		if (!target) return this.parse('/help bulbapedia');
		if (!this.runBroadcast()) return;

		const baseLink = 'https://bulbapedia.bulbagarden.net/wiki/';

		const pokemon = Dex.species.get(target);
		const item = Dex.items.get(target);
		const move = Dex.moves.get(target);
		const ability = Dex.abilities.get(target);
		const nature = Dex.natures.get(target);
		let atLeastOne = false;

		// Pokemon
		if (pokemon.exists) {
			atLeastOne = true;
			if (pokemon.isNonstandard && pokemon.isNonstandard !== 'Past') {
				throw new Chat.ErrorMessage(`${pokemon.name} is not a real Pok\u00e9mon.`);
			}
			let baseSpecies = pokemon.baseSpecies;
			if (pokemon.id.startsWith('flabebe')) baseSpecies = 'Flabébé';
			const link = `${baseLink}${encodeURIComponent(baseSpecies)}_(Pokémon)`;

			this.sendReplyBox(Utils.html`<a href="${link}">${pokemon.name} in-game information</a>, provided by Bulbapedia`);
		}

		// Item
		if (item.exists) {
			atLeastOne = true;
			if (item.isNonstandard && item.isNonstandard !== 'Past') {
				throw new Chat.ErrorMessage(`${item.name} is not a real item.`);
			}
			let link = `${baseLink}${encodeURIComponent(item.name)}`;
			if (Dex.moves.get(item.name).exists) link += '_(item)';
			this.sendReplyBox(Utils.html`<a href="${link}">${item.name} item description</a>, provided by Bulbapedia`);
		}

		// Ability
		if (ability.exists) {
			atLeastOne = true;
			if (ability.isNonstandard && ability.isNonstandard !== 'Past') {
				throw new Chat.ErrorMessage(`${ability.name} is not a real ability.`);
			}
			const link = `${baseLink}${encodeURIComponent(ability.name)}_(Ability)`;
			this.sendReplyBox(`<a href="${link}">${ability.name} ability description</a>, provided by Bulbapedia`);
		}

		// Move
		if (move.exists) {
			atLeastOne = true;
			if (move.isNonstandard && move.isNonstandard !== 'Past') {
				throw new Chat.ErrorMessage(`${move.name} is not a real move.`);
			}
			const link = `${baseLink}${encodeURIComponent(move.name)}_(move)`;
			this.sendReplyBox(`<a href="${link}">${move.name} move description</a>, provided by Bulbapedia`);
		}

		// Nature
		if (nature.exists) {
			atLeastOne = true;
			const link = `${baseLink}Nature`;
			this.sendReplyBox(`<a href="${link}">Nature descriptions</a>, provided by Bulbapedia`);
		}

		if (!atLeastOne) {
			return this.sendReplyBox(`Pok&eacute;mon, item, move, ability, or nature not found.`);
		}
	},
	bulbapediahelp: [
		`/bulbapedia [pokemon/item/move/ability/nature] - Links to Bulbapedia wiki page for this pokemon/item/move/ability/nature.`,
		`!bulbapedia [pokemon/item/move/ability/nature] - Shows everyone this link. Requires: + % @ # ~`,
	],

	register() {
		if (!this.runBroadcast()) return;
		this.sendReplyBox(`You will be prompted to register upon winning a rated battle. Alternatively, there is a register button in the <button name="openOptions"><i class="fa fa-cog"></i> Options</button> menu in the upper right.`);
	},
	registerhelp: [`/register - Provides information on how to register.`],

	/*********************************************************
	 * Miscellaneous commands
	 *********************************************************/

	roll: 'dice',
	dice(target, room, user) {
		if (!target || /[^\d\sdHL+-]/i.test(target)) return this.parse('/help dice');
		if (!this.runBroadcast(true)) return;

		// ~30 is widely regarded as the sample size required for sum to be a Gaussian distribution.
		// This also sets a computation time constraint for safety.
		const maxDice = 40;

		let diceQuantity = 1;
		const diceDataStart = target.indexOf('d');
		if (diceDataStart >= 0) {
			if (diceDataStart) diceQuantity = Number(target.slice(0, diceDataStart));
			target = target.slice(diceDataStart + 1);
			if (!Number.isInteger(diceQuantity) || diceQuantity <= 0 || diceQuantity > maxDice) {
				return this.sendReply(`The amount of dice rolled should be a natural number up to ${maxDice}.`);
			}
		}
		let offset = 0;
		let removeOutlier = 0;

		const modifierData = /[+-]/.exec(target);
		if (modifierData) {
			switch (target.slice(modifierData.index).trim().toLowerCase()) {
			case '-l':
				removeOutlier = -1;
				break;
			case '-h':
				removeOutlier = +1;
				break;
			default:
				offset = Number(target.slice(modifierData.index));
				if (isNaN(offset)) return this.parse('/help dice');
				if (!Number.isSafeInteger(offset)) {
					throw new Chat.ErrorMessage(`The specified offset must be an integer up to ${Number.MAX_SAFE_INTEGER}.`);
				}
			}
			if (removeOutlier && diceQuantity <= 1) {
				throw new Chat.ErrorMessage(`More than one dice should be rolled before removing outliers.`);
			}
			target = target.slice(0, modifierData.index);
		}

		let diceFaces = 6;
		if (target.length) {
			diceFaces = Number(target);
			if (!Number.isSafeInteger(diceFaces) || diceFaces <= 0) {
				throw new Chat.ErrorMessage(`Rolled dice must have a natural amount of faces up to ${Number.MAX_SAFE_INTEGER}.`);
			}
		}

		if (diceQuantity > 1) {
			// Make sure that we can deal with high rolls
			if (!Number.isSafeInteger(offset < 0 ? diceQuantity * diceFaces : diceQuantity * diceFaces + offset)) {
				throw new Chat.ErrorMessage(`The maximum sum of rolled dice must be lower or equal than ${Number.MAX_SAFE_INTEGER}.`);
			}
		}

		let maxRoll = 0;
		let minRoll = Number.MAX_SAFE_INTEGER;

		const trackRolls = diceQuantity * (`${diceFaces}`.length + 1) <= 60;
		const rolls = [];
		let rollSum = 0;

		for (let i = 0; i < diceQuantity; ++i) {
			const curRoll = Math.floor(Math.random() * diceFaces) + 1;
			rollSum += curRoll;
			if (curRoll > maxRoll) maxRoll = curRoll;
			if (curRoll < minRoll) minRoll = curRoll;
			if (trackRolls) rolls.push(curRoll);
		}

		// Apply modifiers

		if (removeOutlier > 0) {
			rollSum -= maxRoll;
		} else if (removeOutlier < 0) {
			rollSum -= minRoll;
		}
		if (offset) rollSum += offset;

		// Reply with relevant information

		let offsetFragment = "";
		if (offset) offsetFragment += `${offset > 0 ? ` + ${offset}` : offset}`;

		if (diceQuantity === 1) return this.sendReplyBox(`Rolling (1 to ${diceFaces})${offsetFragment}: ${rollSum}`);

		const outlierFragment = removeOutlier ? ` except ${removeOutlier > 0 ? "highest" : "lowest"}` : ``;
		const rollsFragment = trackRolls ? ": " + rolls.join(", ") : "";
		return this.sendReplyBox(
			`${diceQuantity} rolls (1 to ${diceFaces})${rollsFragment}<br />` +
			`Sum${offsetFragment}${outlierFragment}: ${rollSum}`
		);
	},
	dicehelp: [
		`/dice [max number] - Randomly picks a number between 1 and the number you choose.`,
		`/dice [number of dice]d[number of sides] - Simulates rolling a number of dice, e.g., /dice 2d4 simulates rolling two 4-sided dice.`,
		`/dice [number of dice]d[number of sides][+/-][offset] - Simulates rolling a number of dice and adding an offset to the sum, e.g., /dice 2d6+10: two standard dice are rolled; the result lies between 12 and 22.`,
		`/dice [number of dice]d[number of sides]-[H/L] - Simulates rolling a number of dice with removal of extreme values, e.g., /dice 3d8-L: rolls three 8-sided dice; the result ignores the lowest value.`,
	],

	pr: 'pickrandom',
	pick: 'pickrandom',
	pickrandom(target, room, user) {
		if (!target?.includes(',')) return this.parse('/help pick');
		if (!this.runBroadcast(true)) return false;
		if (this.broadcasting) {
			[, target] = Utils.splitFirst(this.message, ' ');
		}
		const options = target.split(',');
		const pickedOption = options[Math.floor(Math.random() * options.length)].trim();
		return this.sendReplyBox(Utils.html`<em>We randomly picked:</em> ${pickedOption}`);
	},
	pickrandomhelp: [`/pick [option], [option], ... - Randomly selects an item from a list containing 2 or more elements.`],

	shuffle(target, room, user) {
		if (!target?.includes(',')) return this.parse('/help shuffle');
		const args = target.split(',');
		if (!this.runBroadcast(true)) return false;
		const results = Utils.shuffle(args.map(arg => arg.trim()));
		return this.sendReplyBox(Utils.html`<em>Shuffled:</em><br> ${results.join(', ')}`);
	},
	shufflehelp: [
		`/shuffle [option], [option], [option], ... - Randomly shuffles a list of 2 or more elements.`,
	],

	showimage(target, room, user) {
		throw new Chat.ErrorMessage(`/showimage has been deprecated - use /show instead.`);
	},

	async requestshow(target, room, user) {
		room = this.requireRoom();
		this.checkChat();
		if (!room.settings.requestShowEnabled) {
			throw new Chat.ErrorMessage(`Media approvals are disabled in this room.`);
		}
		if (user.can('showmedia', null, room, 'show')) throw new Chat.ErrorMessage(`Use !show instead.`);
		if (room.pendingApprovals?.has(user.id)) throw new Chat.ErrorMessage('You have a request pending already.');
		if (!toID(target)) return this.parse(`/help requestshow`);

		let [link, comment] = this.splitOne(target);
		if (!/^https?:\/\//.test(link)) link = `https://${link}`;
		link = encodeURI(link);
		let dimensions;
		if (!/^(https?:\/\/)?(www\.)?(youtube\.com|youtu\.be)(\/|$)/i.test(link)) {
			if (link.includes('data:image/png;base64')) {
				throw new Chat.ErrorMessage('Please provide an actual link (you probably copied the URL wrong?).');
			}
			try {
				dimensions = await Chat.fitImage(link);
			} catch {
				throw new Chat.ErrorMessage('Invalid link.');
			}
		}
		if (comment && this.checkChat(comment) !== comment) {
			throw new Chat.ErrorMessage(`You cannot use filtered words in comments.`);
		}
		if (!room.pendingApprovals) room.pendingApprovals = new Map();
		room.pendingApprovals.set(user.id, {
			name: user.name,
			link,
			comment,
			dimensions,
		});
		this.sendReply(`You have requested to show the link: ${link}${comment ? ` (with the comment ${comment})` : ''}.`);
		const message = `|tempnotify|pendingapprovals|Pending media request!` +
			`|${user.name} has requested to show media in ${room.title}.|new media request`;
		room.sendRankedUsers(message, '%');
		room.sendMods(
			Utils.html`|uhtml|request-${user.id}|<div class="infobox">${user.name} wants to show <a href="${link}">${link}</a><br>` +
			(comment ? Utils.html`Comment: ${comment}<br>` : '') +
			`<button class="button" name="send" value="/approveshow ${user.id}">Approve</button><br>` +
			`<button class="button" name="send" value="/denyshow ${user.id}">Deny</button></div>`
		);
	},
	requestshowhelp: [`/requestshow [link], [comment] - Requests permission to show media in the room.`],

	async approveshow(target, room, user) {
		room = this.requireRoom();
		this.checkCan('mute', null, room);
		if (!room.settings.requestShowEnabled) {
			throw new Chat.ErrorMessage(`Media approvals are disabled in this room.`);
		}
		const userid = toID(target);
		if (!userid) return this.parse(`/help approveshow`);
		const request = room.pendingApprovals?.get(userid);
		if (!request) throw new Chat.ErrorMessage(`${userid} has no pending request.`);
		if (userid === user.id) {
			throw new Chat.ErrorMessage(`You can't approve your own /show request.`);
		}
		room.pendingApprovals!.delete(userid);
		room.sendMods(`|uhtmlchange|request-${target}|`);
		room.sendRankedUsers(`|tempnotifyoff|pendingapprovals`, '%');

		let buf;
		if (request.dimensions) { // image
			const [width, height, resized] = request.dimensions;
			buf = Utils.html`<img src="${request.link}" width="${width}" height="${height}" />`;
			if (resized) buf += Utils.html`<br /><a href="${request.link}" target="_blank">full-size image</a>`;
		} else {
			buf = await YouTube.generateVideoDisplay(request.link, false);
			if (!buf) throw new Chat.ErrorMessage('Could not get YouTube video');
		}
		buf += Utils.html`<br /><div class="infobox"><small>(Requested by ${request.name})</small>`;
		if (request.comment) {
			buf += Utils.html`<br />${request.comment}</small></div>`;
		} else {
			buf += `</small></div>`;
		}
		room.add(`|c| ${request.name}|/raw ${buf}`);
		this.privateModAction(`${user.name} approved showing media from ${request.name}.`);
	},
	approveshowhelp: [`/approveshow [user] - Approves the media display request of [user]. Requires: % @ # ~`],

	denyshow(target, room, user) {
		room = this.requireRoom();
		this.checkCan('mute', null, room);
		if (!room.settings.requestShowEnabled) {
			throw new Chat.ErrorMessage(`Media approvals are disabled in this room.`);
		}
		target = toID(target);
		if (!target) return this.parse(`/help denyshow`);

		const entry = room.pendingApprovals?.get(target);
		if (!entry) throw new Chat.ErrorMessage(`${target} has no pending request.`);

		room.pendingApprovals!.delete(target);
		room.sendMods(`|uhtmlchange|request-${target}|`);
		room.sendRankedUsers(`|tempnotifyoff|pendingapprovals`, '%');
		this.privateModAction(`${user.name} denied ${target}'s request to display ${entry.link}.`);

		const targetUser = Users.get(target);
		if (!targetUser) return;
		room.sendUser(targetUser, `|raw|<div class="broadcast-red">Your media request was denied.</div>`);
		room.sendUser(targetUser, `|notify|Media request denied`);
	},
	denyshowhelp: [`/denyshow [user] - Denies the media display request of [user]. Requires: % @ # ~`],

	approvallog(target, room, user) {
		room = this.requireRoom();
		return this.parse(`/sl approved showing media from, ${room.roomid}`);
	},
	approvalloghelp: [`/approvallog - View a log of past media approvals in the current room. Requires: ~`],

	viewapprovals(target, room, user) {
		room = this.requireRoom();
		return this.parse(`/join view-approvals-${room.roomid}`);
	},
	viewapprovalshelp: [
		`/viewapprovals - View a list of users who have requested to show media in the current room.`,
		`Requires: % @ # ~`,
	],

	async show(target, room, user, connection) {
		if (!room?.persist && !this.pmTarget && !room?.roomid.startsWith('help-')) {
			throw new Chat.ErrorMessage(`/show cannot be used in temporary rooms.`);
		}
		if (!toID(target).trim()) return this.parse(`/help show`);
		if (Monitor.countNetRequests(connection.ip)) {
			throw new Chat.ErrorMessage(`You are using this command too quickly. Wait a bit and try again.`);
		}

		const [link, comment] = Utils.splitFirst(target, ',').map(f => f.trim());
		this.checkBroadcast();
		if (this.broadcastMessage) {
			if (room) {
				this.checkCan('show', null, room);
			} else {
				this.checkCan('altsself');
			}
		}

		this.runBroadcast();
		let buf;
		if (YouTube.linkRegex.test(link)) {
			buf = await YouTube.generateVideoDisplay(link, false);
			this.message = this.message.replace(/&ab_channel=(.*)(&|)/ig, '').replace(/https:\/\/www\./ig, '');
		} else if (Twitch.linkRegex.test(link)) {
			const channelId = Twitch.linkRegex.exec(link)?.[2]?.trim();
			if (!channelId) throw new Chat.ErrorMessage(`Specify a Twitch channel.`);
			buf = Utils.html`Watching <b><a class="subtle" href="https://twitch.tv/${toID(channelId)}">${channelId}</a></b>...<br />`;
			buf += Utils.html`<twitch src="${link}" />`;
		} else {
			if (Chat.linkRegex.test(link)) {
				if (/^https?:\/\/(.*)\.(mp4|mov)\b(\?|$)/i.test(link)) { // video
					// can't fitImage video, so we're just gonna have to guess to keep it small
					buf = Utils.html`<video src="${link}" controls="" width="300px" height="300px"></video>`;
				} else if (/^https?:\/\/(.*)\.(mp3|wav)\b(\?|$)/i.test(link)) { // audio
					buf = Utils.html`<audio src="${link}" controls=""></audio>`;
				}
			}
			if (link.includes('data:image/png;base64')) {
				throw new Chat.ErrorMessage('Please provide an actual link (you probably copied it wrong?).');
			}
			if (!buf) { // fall back on image
				try {
					const [width, height, resized] = await Chat.fitImage(link);
					buf = Utils.html`<img src="${link}" width="${width}" height="${height}" />`;
					if (resized) buf += Utils.html`<br /><a href="${link}" target="_blank">full-size image</a>`;
				} catch {
					throw new Chat.ErrorMessage('Invalid image, audio, or video URL.');
				}
			}
		}
		if (comment) {
			if (this.checkChat(comment) !== comment) {
				throw new Chat.ErrorMessage(`You cannot use filtered words in comments.`);
			}
			buf += Utils.html`<br />(${comment})</div>`;
		}

		this.sendReplyBox(buf);
	},
	showhelp: [
		`/show [url] - Shows you an image, audio clip, video file, or YouTube video.`,
		`!show [url] - Shows an image, audio clip, video file, or YouTube video to everyone in a chatroom. Requires: whitelist % @ # ~`,
	],

	rebroadcast(target, room, user, connection) {
		if (!target || !target.startsWith('!') || !this.shouldBroadcast()) {
			return this.parse('/help rebroadcast');
		}
		room = this.requireRoom();
		room.lastBroadcast = '';
		this.parse(target, { broadcastPrefix: "!rebroadcast " });
	},
	rebroadcasthelp: [
		`!rebroadcast ![command] - Bypasses the broadcast cooldown to broadcast a command.`,
	],

	regdate: 'registertime',
	regtime: 'registertime',
	async registertime(target, room, user, connection) {
		this.runBroadcast();
		if (Monitor.countNetRequests(connection.ip)) {
			throw new Chat.ErrorMessage(`You are using this command too quickly. Wait a bit and try again.`);
		}
		if (!user.autoconfirmed) throw new Chat.ErrorMessage(`Only autoconfirmed users can use this command.`);
		target = toID(target);
		if (!target) target = user.id;
		let rawResult;
		try {
			rawResult = await Net(`https://${Config.routes.root}/users/${target}.json`).get();
		} catch (e: any) {
			if (e.message.includes('Not found')) throw new Chat.ErrorMessage(`User '${target}' is unregistered.`);
			throw new Chat.ErrorMessage(e.message);
		}
		// not in a try-catch block because if this doesn't work, this is a problem that should be known
		const result = JSON.parse(rawResult);
		const date = new Date(result.registertime * 1000);
		const duration = Date.now() - date.getTime();
		// hardcode, since the loginserver doesn't store exact times, and
		// so this can look quite inaccurate if it was within the last day
		const regTimeAgo = duration > 24 * 60 * 60 * 1000 ?
			Chat.toDurationString(duration, { precision: 1 }) :
			'less than a day';
		this.sendReplyBox(Utils.html`The user '${target}' registered ${regTimeAgo} ago, on the date ${date.toDateString()}.`);
	},
	registertimehelp: [`/registertime OR /regtime [user] - Find out when [user] registered.`],

	pi(target, room, user) {
		if (!this.runBroadcast()) return false;
		return this.sendReplyBox(
			'Did you mean: 1. 3.1415926535897932384626... (Decimal)<br />' +
			'2. 3.184809493B91866... (Duodecimal)<br />' +
			'3. 3.243F6A8885A308D... (Hexadecimal)<br /><br />' +
			'How many digits of pi do YOU know? Test it out <a href="http://guangcongluo.com/mempi/">here</a>!'
		);
	},
	pihelp: [`/pi - Displays the first several digits of pi in several notation types.`],

	code(target, room, user, connection) {
		// target is trimmed by Chat#splitMessage, but leading spaces can be
		// important to code block indentation.
		target = this.message.substr(this.cmdToken.length + this.cmd.length + (this.message.includes(' ') ? 1 : 0)).trimRight();
		if (!target) return this.parse('/help code');
		if (target.length >= 8192) throw new Chat.ErrorMessage("Your code must be under 8192 characters long!");
		if (target.length < 80 && !target.includes('\n') && !target.includes('```') && this.shouldBroadcast()) {
			return this.checkChat(`\`\`\`${target}\`\`\``);
		}

		if (this.room?.settings.isPersonal !== false && this.shouldBroadcast()) {
			target = this.filter(target)!;
			if (!target) throw new Chat.ErrorMessage(`Invalid code.`);
		}

		this.checkBroadcast(true, '!code');
		this.runBroadcast(true);

		if (this.broadcasting) {
			return `/raw <div class="infobox">${Chat.getReadmoreCodeBlock(target)}</div>`;
		} else {
			this.sendReplyBox(Chat.getReadmoreCodeBlock(target));
		}
	},
	codehelp: [
		`!code [code] - Broadcasts code to a room. Accepts multi-line arguments. Requires: + % @ ~ #`,
		`/code [code] - Shows you code. Accepts multi-line arguments.`,
	],

	buildformat(target, room, user) {
		target = toID(target);
		if (target && this.connection.openPages?.has('buildformat')) {
			this.closePage('buildformat');
		}
		return this.parse(`/j view-buildformat${target ? `-${target}` : ""}`);
	},

	makecustomchallenge(target, room, user) {
		target = target.trim();
		if (!target.length) {
			return this.popupReply(`No parameters given.`);
		}
		const args = Chat.parseArguments(target, ' | ', {
			allowEmpty: true, useIDs: false,
		});
		if (!args.format?.[0]) {
			return this.popupReply(`No format specified.`);
		}
		const format = Dex.formats.get(toID(args.format[0]));
		if (format.effectType !== 'Format') {
			return this.popupReply(`The format '${format}' does not exist.`);
		}
		delete args.format;
		const targetUserID = toID(args.user?.[0] || '');
		if (targetUserID) {
			this.checkChat();
			if (!Users.get(targetUserID)) {
				return this.popupReply(`User '${targetUserID}' not found.`);
			}
		}
		delete args.user;
		const challengeBuf = [];
		if (args.bans?.[0]) {
			const bans = args.bans[0].split(',').map(f => f.trim());
			challengeBuf.push(...bans);
		}
		delete args.bans;

		for (const k in args) {
			if (k.endsWith('-enabled')) continue;
			let name = k;
			if (name.endsWith('-val')) {
				name = name.slice(0, -4);
			}
			const rule = Dex.data.Rulesets[name];
			if (!rule || rule.effectType === 'Format') {
				return this.popupReply(`Invalid rule or modifier: ${name}`);
			}
			const id = rule.id || toID(rule.name);
			let val = args[k][0];
			// BUG: when there are numbers in the form elem/param name,
			// the `{name}` specifier doesn't get removed from the string
			if (val.startsWith('{')) {
				val = '';
			}

			const ruleTable = Dex.formats.getRuleTable(format);
			if (rule.hasValue) {
				const enabled = args[`${id}-enabled`][0] || "";
				val = args[`${id}-val`][0] || "";
				if (enabled) {
					const current = ruleTable.valueRules.get(id);
					if (typeof current !== 'undefined') {
						if (current !== val) {
							challengeBuf.push(`!! ${rule.name} = ${val}`);
						}
					} else {
						challengeBuf.push(`${rule.name} = ${val}`);
					}
				} else {
					if (ruleTable.valueRules.has(id)) {
						challengeBuf.push(`!${rule.name}`);
					}
				}
			} else {
				// adding one that's already there
				if (val && ruleTable.has(id)) {
					continue;
				}
				if (!val && !ruleTable.has(id)) {
					// removing a rule that isn't there
					continue;
				}
				challengeBuf.push(`${!val ? '!' : ""}${rule.name}`);
			}
		}
		const fullFormat = `${format.id}@@@${challengeBuf.join(',')}`;
		try {
			Dex.formats.validate(fullFormat);
		} catch (e: any) {
			this.refreshPage(`buildformat-${format.id}`);
			return this.popupReply(e.message);
		}
		if (targetUserID) {
			this.closePage(`buildformat`);
			return this.parse(`/challenge ${targetUserID},${fullFormat}`);
		} else {
			this.connection.send(
				`>view-buildformat-${format.id}\n|selectorhtml|#output|` +
				`Here's the string for your desired rules!<br /><code>${fullFormat}</code><br />` +
				`Use <code>/challenge [user],${fullFormat}</code> to challenge someone with it!`
			);
		}
	},

	adminhelp(target, room, user) {
		this.checkCan('rangeban');
		let cmds = Chat.allCommands();
		const canExecute = (perm: string) => !(
			// gotta make sure no lower group has it
			Object.values(Config.groups).slice(1).some(f => (f as any)[perm])
		);
		cmds = cmds.filter(
			f => f.requiredPermission && canExecute(f.requiredPermission) && f.fullCmd !== this.handler?.fullCmd
		);
		cmds = Utils.sortBy(cmds, f => f.fullCmd);
		let namespaces = new Map<string, string[]>();
		for (const cmd of cmds) {
			const namespace = cmd.fullCmd.split(' ')[0];
			const list = namespaces.get(namespace) || [];
			list.push(cmd.fullCmd.trim());
			namespaces.set(namespace, list);
		}
		let buf = `<strong>Admin commands:</strong><br />`;
		namespaces = new Map(Utils.sortBy([...namespaces], ([, cmdList]) => cmdList.length === 1));
		for (const [namespace, cmdList] of namespaces) {
			if (cmdList.length > 1 || cmdList[0].includes(' ')) {
				buf += `<details class="readmore"><summary>${namespace}</summary>`;
				buf += cmdList.map(f => `&bull; /${f}`).join('<br />');
				buf += `</details>`;
			} else {
				buf += `&bull; ${cmdList[0]}`;
				const help = Chat.commands[namespace + 'help'];
				if (help) {
					const text = Array.isArray(help) ?
						help.join(' | ') : typeof help === 'function' ?
							`<button class="button" name="send" value="/${cmdList[0] + 'help'}">Get help</button>` : '';
					buf += text ? ` (<code><small>${text}</small></code>)` : ` (no help found)`;
				}
			}
			buf += `<br />`;
		}
		this.sendReplyBox(buf);
	},
	adminhelphelp: [`/adminhelp - Programmatically generates a list of all administrator commands. Requires: ~`],

	altlog: 'altslog',
	altslog(target, room, user) {
		this.checkCan('lock');
		target = toID(target);
		if (!target) {
			return this.parse(`/help altslog`);
		}
		return this.parse(`/join view-altslog-${target}`);
	},
	altsloghelp: [
		`/altslog [userid] - View the alternate account history for the given [userid]. Requires: % @ ~`,
	],

	randtopic(target, room, user) {
		room = this.requireRoom();
		if (!room.settings.topics?.length) {
			throw new Chat.ErrorMessage(`This room has no random topics to select from.`);
		}
		this.runBroadcast();
		this.sendReply(Utils.html`|html|<div class="broadcast-blue">${Utils.randomElement(room.settings.topics)}</div>`);
	},
	randtopichelp: [
		`/randtopic - Randomly selects a topic from the room's discussion topic pool and displays it.`,
		`/addtopic [target] - Adds the [target] to the pool of random discussion topics. Requires: % @ # ~`,
		`/removetopic [index] - Removes the topic from the room's topic pool. Requires: % @ # ~`,
		`/randomtopics - View the discussion topic pool for the current room.`,
	],

	addtopic(target, room, user) {
		room = this.requireRoom();
		this.checkCan('mute', null, room);
		target = target.trim();
		if (!toID(target).length) {
			return this.parse(`/help randtopic`);
		}
		if (!room.settings.topics) room.settings.topics = [];
		room.settings.topics.push(target);
		this.privateModAction(`${user.name} added the topic "${target}" to the random topic pool.`);
		this.modlog('ADDTOPIC', null, target);
		room.saveSettings();
	},
	addtopichelp: [`/addtopic [target] - Adds the [target] to the pool of random discussion topics. Requires: % @ # ~`],

	removetopic(target, room, user) {
		room = this.requireRoom();
		this.checkCan('mute', null, room);
		if (!toID(target)) {
			return this.parse(`/help randtopic`);
		}
		const index = Number(toID(target)) - 1;
		if (isNaN(index)) {
			throw new Chat.ErrorMessage(`Invalid topic index: ${target}. Must be a number.`);
		}
		if (!room.settings.topics?.[index]) {
			throw new Chat.ErrorMessage(`Topic ${index + 1} not found.`);
		}
		const topic = room.settings.topics.splice(index, 1)[0];
		room.saveSettings();
		this.privateModAction(`${user.name} removed topic ${index + 1} from the random topic pool.`);
		this.modlog('REMOVETOPIC', null, topic);
	},
	removetopichelp: [`/removetopic [index] - Removes the topic from the room's topic pool. Requires: % @ # ~`],

	listtopics: 'randomtopics',
	randtopics: 'randomtopics',
	randomtopics(target, room, user) {
		room = this.requireRoom();
		return this.parse(`/join view-topics-${room}`);
	},
};

export const handlers: Chat.Handlers = {
	onRename(user, oldID, newID) {
		if (oldID === newID || !Config.usesqlite || [oldID, newID].some(f => f.startsWith('guest'))) return;
		void Chat.database.run(
			`REPLACE INTO alts_log (to_id, from_id, ip) VALUES (?, ?, ?)`,
			[newID, oldID, user.latestIp]
		);
	},
};

export const pages: Chat.PageTable = {
	async altslog(query, user) {
		this.checkCan('lock');
		this.title = '[Alts Log]';
		const target = toID(query.shift());
		if (!target) {
			throw new Chat.ErrorMessage(`Please specify a user to find alternate accounts for.`);
		}
		this.title += ` ${target}`;
		if (!Config.usesqlite) {
			throw new Chat.ErrorMessage(`The alternate account log is currently disabled.`);
		}
		const rawLimit = query.shift() || "100";
		const num = parseInt(rawLimit);
		if (num > 3000) {
			throw new Chat.ErrorMessage(`3000 is the maximum number of results from the alternate account log.`);
		}
		if (isNaN(num) || num < 1) {
			throw new Chat.ErrorMessage(`The max results must be a real number that is at least one (received "${rawLimit}")`);
		}
		const showIPs = user.can('globalban');
		const results = await Chat.database.all(
			'SELECT to_id, from_id, ip FROM alts_log WHERE (to_id = ? OR from_id = ?) LIMIT ?',
			[target, target, num]
		);
		let buf = `<div class="pad"><h2>Alternate accounts for ${target}</h2>`;
		buf += `${results.length} found.<hr />`;

		const ipTable = {} as Record<string, number>;
		const userids = new Set<string>();
		const useridToIp = new Map<string, string[]>();
		for (const result of results) {
			const id = result.from_id === target ? result.to_id : result.from_id;
			userids.add(id);
			let prevIps = useridToIp.get(id);
			if (!prevIps) {
				prevIps = [];
			}
			if (!prevIps.includes(result.ip)) {
				prevIps.push(result.ip);
			}
			useridToIp.set(id, prevIps);
			if (!ipTable[result.ip]) ipTable[result.ip] = 0;
			ipTable[result.ip]++;
		}
		buf += `<div class="ladder pad"><table><tr><th>Userid</th>${showIPs ? `<th>Latest IP</th>` : ""}</tr>`;
		for (const id of userids) {
			const ips = useridToIp.get(id) || [];
			buf += `<tr><td>`;
			buf += `<a href="https://${Config.routes.root}/users/${id}">${id}</a></td>`;
			const ipStr = ips.map(f => `<a href="https://whatismyipaddress.com/ip/${f}">${f}</a>`).join(', ');
			buf += `${showIPs ? `<td>${ipStr}</td>` : ""}</tr>`;
		}
		buf += `</table></div>`;
		if (showIPs) {
			buf += `<br /><div class="ladder pad"><table><tr><th>IP</th><th>Times Used</th></tr>`;
			for (const ip in ipTable) {
				buf += `<tr><td>${ip}</td><td>${ipTable[ip]}</td></tr>`;
			}
			buf += `</table></div>`;
		}
		return buf;
	},
	topics(query, user) {
		const room = this.requireRoom();
		this.title = `[Topics] ${room.title}`;
		const topics = room.settings.topics || [];
		let buf;
		if (!topics.length) {
			buf = `<div class="pad"><h2>This room has no discussion topics saved.</h2></div>`;
			return buf;
		}
		buf = `<div class="pad"><h2>Random topics for ${room.title} (${topics.length}):</h2><ul>`;
		for (const [i, topic] of topics.entries()) {
			buf += Utils.html`<li>${i + 1}: "${topic}"</li>`;
		}
		buf += `</ul></div>`;
		return buf;
	},
	battlerules(query, user) {
		const rules = Object.values(Dex.data.Rulesets).filter(rule => rule.effectType !== "Format");
		const tourHelp = `https://www.smogon.com/forums/threads/pok%C3%A9mon-showdown-forum-rules-resources-read-here-first.3570628/#post-6777489`;
		this.title = "Custom Rules";
		let rulesHTML = `<div class="pad"><h1>Custom Rules in challenges and tournaments</h1>`;
		const basics = [
			`<p>Pok&eacute;mon Showdown! supports custom rules in three ways:</p>`,
			`<ul><li>Challenging another user, using the command <code>/challenge USERNAME, FORMAT @@@ RULES</code></li>`,
			`<li>Tournaments, using the command <code>/tour rules RULES</code> (see the <a href="${tourHelp}">Tournament command help</a>)</li>`,
			`<li>Custom rules on your own server</li></ul>`,
			`<h2><u>Bans</u></h2>`,
			`<p>Bans are just a <code>-</code> followed by the thing you want to ban.</p>`,
			`<h3>Individual bans</h3>`,
			`<ul><li><code>- Arceus</code>: Ban a Pok&eacute;mon (including all formes)</li>`,
			`<li><code>- Arceus-Flying</code> or <code>- Giratina-Altered</code>: Ban a Pok&eacute;mon forme</li>`,
			`<li><code>- Baton Pass</code>: Ban a move/item/ability/etc</li></ul>`,
			`<h3>Group bans</h3>`,
			`<ul><li><code>- OU</code> or <code>- DUU</code>: Ban a tier</li>`,
			`<li><code>- Mega</code> or <code>- CAP</code>: Ban a Pok&eacute;mon category</li></ul>`,
			`<h3>Complex bans</h3>`,
			`<ul><li><code>- Blaziken + Speed Boost</code>: Ban a combination of things in a single Pokemon (you can have a Blaziken, and you can have Speed Boost on the same team, but the Blaziken can't have Speed Boost)</li>`,
			`<li><code>- Drizzle ++ Swift Swim</code>: Ban a combination of things in a team (if any Pokémon on your team have Drizzle, no Pokémon can have Swift Swim)</li></ul>`,
			`<h2><u>Unbans</u></h2>`,
			`<p>Using a <code>+</code> instead of a <code>-</code> unbans that category.</p>`,
			`<ul><li><code>+ Blaziken</code>: Unban/unrestrict a Pok&eacute;mon.</li></ul>`,
			`<p><a class="button" href="https://github.com/smogon/pokemon-showdown/blob/master/config/CUSTOM-RULES.md">More details</a></p>`,
		];
		const rulesets = [
			`<h2><u>Rules, mods, and clauses</u></h2>`,
			`<p>The following rules can be added to challenges/tournaments to modify the style of play. Alternatively, already present rules can be removed from formats by preceding the rule name with <code>!</code></p>`,
			`<p>However, some rules, like <code>Obtainable</code>, are made of subrules, that can be individually turned on and off.</p>`,
			`<div class="ladder"><table><tr><th>Rule Name</th><th>Description</th></tr>`,
		];
		for (const rule of rules) {
			if (rule.hasValue) continue;
			const desc = rule.desc ? rule.desc : "No description.";
			rulesets.push(`<tr><td>${rule.name}</td><td>${desc}</td></tr>`);
		}
		rulesets.push(
			`</table></div>`,
			`<h3>Value rules</h3>`,
			`<ul><li>Value rules are formatted like [Name] = [value], e.g. "Force Monotype = Water" or "Min Team Size = 4"</li>`,
			`<li>To remove a value rule, use <code>![rule name]</code>.</li>`,
			`<li>To override another value rule, use <code>!! [Name] = [new value]</code>. For example, overriding the Min Source Gen on [Gen 8] VGC 2021 from 8 to 3 would look like <code>!! Min Source Gen = 3</code>.</li></ul>`,
			`<div class="ladder"><table><tr><th>Rule Name</th><th>Description</th></tr>`
		);
		for (const rule of rules) {
			if (!rule.hasValue) continue;
			const desc = rule.desc ? rule.desc : "No description.";
			rulesets.push(`<tr><td>${rule.name}</td><td>${desc}</td></tr>`);
		}
		rulesets.push(`</table></div>`);
		rulesHTML += `${basics.concat(rulesets).join('')}</div>`;
		return rulesHTML;
	},
	buildformat(query, user) {
		this.title = '[Format Customizer]';
		const rules = Object.values(Dex.data.Rulesets).filter(rule => rule.effectType !== "Format");
		let buf = `<div class="pad"><h2>Format customizer</h2>`;
		buf += `<button class="button" name="send" value="/join ${this.pageid}">`;
		buf += `<i class="fa fa-refresh"></i> ${this.tr`Refresh`}</button>`;
		buf += `<hr />`;
		const formatId = toID(query[0]);
		const format = Dex.formats.get(formatId);
		if (!formatId || format.effectType !== 'Format') {
			if (formatId) {
				buf += `<div class="message-error">The format '${formatId}' does not exist.</div><br />`;
			}
			buf += `<form data-submitsend="/buildformat {format}">`;
			buf += `Choose your format: <formatselect name="format">[Gen ${Dex.gen}] Random Battle</formatselect><br />`;
			buf += `<button type="submit" class="button notifying">Continue</button>`;
			buf += `</form>`;
			return buf;
		}

		buf += `<form data-submitsend="{{cmd}}">`;
		const ruleTable = Dex.formats.getRuleTable(format);
		const cmd = [`format=${formatId}`, 'user={user}'];
		buf += `Format: ${format.name}<br />`;
		buf += `User to challenge: <input name="user" /> <small>(optional)</small>`;
		buf += `<br /><br />`;
		buf += `<u><strong>Bans/Unbans</strong></u><br />`;
		buf += `<details class="readmore">`;
		buf += `<summary>Bans are a <code>-</code> followed by the thing you want to ban. `;
		buf += `Using a <code>+</code> instead unbans Pokemon.</summary><small>`;
		buf += `<h3>Individual bans</h3>`;
		buf += `<ul><li><code>- Arceus</code>: Ban a Pok&eacute;mon (including all formes)</li>`;
		buf += `<li><code>- Arceus-Flying</code> or <code>- Giratina-Altered</code>: Ban a Pok&eacute;mon forme</li>`;
		buf += `<li><code>- Baton Pass</code>: Ban a move/item/ability/etc</li></ul>`;
		buf += `<h3>Group bans</h3>`;
		buf += `<ul><li><code>- OU</code> or <code>- DUU</code>: Ban a tier</li>`;
		buf += `<li><code>- Mega</code> or <code>- CAP</code>: Ban a Pok&eacute;mon category</li></ul>`;
		buf += `<h3>Complex bans</h3>`;
		buf += `<ul><li><code>- Blaziken + Speed Boost</code>: Ban a combination of things in a single Pokemon (you can have a Blaziken, and you can have Speed Boost on the same team, but the Blaziken can't have Speed Boost)</li>`;
		buf += `<li><code>- Drizzle ++ Swift Swim</code>: Ban a combination of things in a team (if any Pokémon on your team have Drizzle, no Pokémon can have Swift Swim)</li></ul>`;
		buf += `<h2><u>Unbans</u></h2>`;
		buf += `<p>Using a <code>+</code> instead of a <code>-</code> unbans that category.</p>`;
		buf += `<ul><li><code>+ Blaziken</code>: Unban/unrestrict a Pok&eacute;mon.</li></ul></small></details><br />`;
		cmd.push(`bans={bans}`);
		buf += `Bans/Unbans: <small>(separated by commas)</small><br /><br />`;
		buf += `<textarea style="width: 100%" name="bans"></textarea><br />`;
		buf += `<details class="readmore"><summary><u><strong>Clauses</strong></u></summary>`;
		buf += `<p>The following rules can be added to challenges/tournaments to modify the style of play. `;
		buf += `Alternatively, already present rules can be removed from formats by preceding the rule name with <code>!</code>.</p>`;
		buf += `<p>However, some rules, like <code>Obtainable</code>, are made of subrules, that can be individually turned on and off.</p>`;
		buf += `<p>Note that if you do not explicitly check a mod to include it, it will not be included in the final output.</p>`;
		buf += `<div class="ladder"><table><tr><th>Rule Name</th><th>Description</th><th>Toggle</th></tr>`;
		for (const rule of rules) {
			if (rule.hasValue) continue;
			const desc = rule.desc || "No description.";
			const id = toID(rule.name);
			buf += `<tr>`;
			buf += `<td>${rule.name}</td><td>${desc}</td>`;
			buf += `<td><input type="checkbox" name="${id}" ${ruleTable.has(id) ? 'checked' : ""} value="on" /></td>`;
			buf += `</tr>`;
			cmd.push(`${id}={${id}}`);
		}
		buf += `</table></div></details><br />`;
		buf += `<details class="readmore"><summary><u><strong>Value Rules</strong></u></summary>`;
		buf += `Click the "enabled" checkbox and fill in a value to enable a rule - uncheck the box to remove the rule.`;
		buf += `<div class="ladder"><table><tr><th>Rule Name</th><th>Description</th><th>Toggle</th></tr>`;
		for (const rule of rules) {
			if (!rule.hasValue) continue;
			const desc = rule.desc || "No description.";
			buf += `<tr>`;
			const id = toID(rule.name);
			const existing = ruleTable.valueRules.get(id);
			buf += `<td>${rule.name}</td><td>${desc}</td>`;
			buf += `<td>Enabled: <input type="checkbox" name="${id}enabled" value="on" ${existing ? "checked" : ''}/><br />`;
			buf += `Value: <input name="${id}val" value="${existing || ""}"/>`;
			cmd.push(`${id}-enabled={${id}enabled}`);
			cmd.push(`${id}-val={${id}val}`);
			buf += `</td></tr>`;
		}
		buf += `</details>`;
		buf = buf.replace(`{{cmd}}`, `/makecustomchallenge ${cmd.join(' | ')}`);
		buf += `<br /><br />`;
		buf += `<button type="submit" class="button notifying">Create!</button></form>`;
		buf += `<span id="output"></span>`;
		return buf;
	},
	punishments(query, user) {
		this.title = 'Punishments';
		const room = this.requireRoom();

		let buf = "";
		if (!user.named) return Rooms.RETRY_AFTER_LOGIN;
		if (!room.persist) return;
		this.checkCan('mute', null, room);
		// Ascending order
		const sortedPunishments = Utils.sortBy([...Punishments.getPunishments(room.roomid)], ([id, entry]) => (
			entry.expireTime
		));
		const sP = new Map();
		for (const [id, entry] of sortedPunishments) {
			sP.set(id, entry);
		}
		buf += Punishments.visualizePunishments(sP, user);
		return buf;
	},
	globalpunishments(query, user) {
		this.title = 'Global Punishments';
		let buf = "";
		if (!user.named) return Rooms.RETRY_AFTER_LOGIN;
		this.checkCan('lock');
		// Ascending order
		const sortedPunishments = Utils.sortBy([...Punishments.getPunishments()], ([id, entry]) => (
			entry.expireTime
		));
		const sP = new Map();
		for (const punishment of sortedPunishments) {
			sP.set(punishment[0], punishment[1]);
		}
		buf += Punishments.visualizePunishments(sP, user);
		return buf;
	},
	approvals(args) {
		const room = Rooms.get(args[0])!;
		this.checkCan('mute', null, room);
		if (!room.pendingApprovals) room.pendingApprovals = new Map();
		if (room.pendingApprovals.size < 1) return `<h2>No pending approvals on ${room.title}</h2>`;
		let buf = `<div class="pad"><strong>Pending media requests on ${room.title}</strong><hr />`;
		for (const [userid, entry] of room.pendingApprovals) {
			buf += `<strong>${entry.name}</strong><div class="infobox">`;
			buf += `<strong>Requester ID:</strong> ${userid}<br />`;
			buf += `<strong>Link:</strong> <a href="${entry.link}">${entry.link}</a><br />`;
			buf += `<strong>Comment:</strong> ${entry.comment}`;
			buf += `<form data-submitsend="/msgroom ${args[0]}, /approveshow ${userid}">`;
			buf += `<button class="button" type="submit">Approve</button>`;
			buf += `</form>`;
			buf += `<form data-submitsend="/msgroom ${args[0]}, /denyshow ${userid}">`;
			buf += `<button class="button" type="submit">Reject</button>`;
			buf += `</form>`;
			buf += `</div><hr />`;
		}
		return buf;
	},
};

process.nextTick(() => {
	Dex.includeData();
	Chat.multiLinePattern.register(
		'/htmlbox', '/quote', '/addquote', '!htmlbox', '/addhtmlbox', '/addrankhtmlbox', '/adduhtml',
		'/changeuhtml', '/addrankuhtmlbox', '/changerankuhtmlbox', '/addrankuhtml', '/addhtmlfaq',
		'/sendhtmlpage',
	);
});
