const cheerio = require('cheerio');
const {defaultSettings, limit: {rcgcdw: rcgcdwLimit}} = require('../util/default.json');
const Lang = require('../util/i18n.js');
const allLangs = Lang.allLangs(true);
const Wiki = require('../util/wiki.js');
const {got, db, sendMsg, createNotice, hasPerm} = require('./util.js');

const display_types = [
	'compact',
	'embed',
	'image',
	'diff'
];

const fieldset = {
	channel: '<label for="wb-settings-channel">Channel:</label>'
	+ '<select id="wb-settings-channel" name="channel" required></select>',
	wiki: '<label for="wb-settings-wiki">Wiki:</label>'
	+ '<input type="url" id="wb-settings-wiki" name="wiki" list="wb-settings-wiki-list" required autocomplete="url">'
	+ '<datalist id="wb-settings-wiki-list"></datalist>'
	+ '<button type="button" id="wb-settings-wiki-check">Check wiki</button>'
	+ '<div id="wb-settings-wiki-check-notice"></div>',
	//+ '<button type="button" id="wb-settings-wiki-search" class="collapsible">Search wiki</button>'
	//+ '<fieldset style="display: none;">'
	//+ '<legend>Wiki search</legend>'
	//+ '</fieldset>',
	lang: '<label for="wb-settings-lang">Language:</label>'
	+ '<select id="wb-settings-lang" name="lang" required autocomplete="language">'
	+ Object.keys(allLangs.names).map( lang => {
		return `<option id="wb-settings-lang-${lang}" value="${lang}">${allLangs.names[lang]}</option>`
	} ).join('')
	+ '</select>'
	+ '<img id="wb-settings-lang-widget">',
	display: '<span>Display mode:</span>'
	+ '<div class="wb-settings-display">'
	+ '<input type="radio" id="wb-settings-display-0" name="display" value="0" required>'
	+ '<label for="wb-settings-display-0">Compact text messages with inline links.</label>'
	+ '</div><div class="wb-settings-display">'
	+ '<input type="radio" id="wb-settings-display-1" name="display" value="1" required>'
	+ '<label for="wb-settings-display-1">Embed messages with edit tags and category changes.</label>'
	+ '</div><div class="wb-settings-display">'
	+ '<input type="radio" id="wb-settings-display-2" name="display" value="2" required>'
	+ '<label for="wb-settings-display-2">Embed messages with image previews.</label>'
	+ '</div><div class="wb-settings-display">'
	+ '<input type="radio" id="wb-settings-display-3" name="display" value="3" required>'
	+ '<label for="wb-settings-display-3">Embed messages with image previews and edit differences.</label>'
	+ '</div>',
	feeds: '<label for="wb-settings-feeds">Feeds based changes:</label>'
	+ '<input type="checkbox" id="wb-settings-feeds" name="feeds">'
	+ '<div id="wb-settings-feeds-only-hide">'
	+ '<label for="wb-settings-feeds-only">Only feeds based changes:</label>'
	+ '<input type="checkbox" id="wb-settings-feeds-only" name="feeds_only">'
	+ '</div>',
	save: '<input type="submit" id="wb-settings-save" name="save_settings">',
	delete: '<input type="submit" id="wb-settings-delete" name="delete_settings" formnovalidate>'
};

/**
 * Create a settings form
 * @param {import('cheerio')} $ - The response body
 * @param {String} header - The form header
 * @param {Object} settings - The current settings
 * @param {Boolean} settings.patreon
 * @param {String} [settings.channel]
 * @param {String} settings.wiki
 * @param {String} settings.lang
 * @param {Number} settings.display
 * @param {Number} [settings.wikiid]
 * @param {Number} [settings.rcid]
 * @param {Object[]} guildChannels - The guild channels
 * @param {String} guildChannels.id
 * @param {String} guildChannels.name
 * @param {Number} guildChannels.userPermissions
 * @param {Number} guildChannels.botPermissions
 * @param {String[]} allWikis - The guild wikis
 */
function createForm($, header, settings, guildChannels, allWikis) {
	var readonly = ( process.env.READONLY ? true : false );
	var curChannel = guildChannels.find( guildChannel => settings.channel === guildChannel.id );
	var fields = [];
	let channel = $('<div>').append(fieldset.channel);
	if ( !settings.channel || ( curChannel && hasPerm(curChannel.botPermissions, 'MANAGE_WEBHOOKS') && hasPerm(curChannel.userPermissions, 'VIEW_CHANNEL', 'MANAGE_WEBHOOKS') ) ) {
		channel.find('#wb-settings-channel').append(
			...guildChannels.filter( guildChannel => {
				return ( hasPerm(guildChannel.userPermissions, 'VIEW_CHANNEL', 'MANAGE_WEBHOOKS') && hasPerm(guildChannel.botPermissions, 'MANAGE_WEBHOOKS') );
			} ).map( guildChannel => {
				var optionChannel = $(`<option id="wb-settings-channel-${guildChannel.id}">`).val(guildChannel.id);
				if ( settings.channel === guildChannel.id ) {
					optionChannel.attr('selected', '');
				}
				return optionChannel.text(`${guildChannel.id} – #${guildChannel.name}`);
			} )
		);
		if ( !settings.channel ) {
			if ( !channel.find('#wb-settings-channel').children('option').length ) {
				createNotice($, 'missingperm', ['Manage Webhooks']);
			}
			channel.find('#wb-settings-channel').prepend(
				$(`<option id="wb-settings-channel-default" selected hidden>`).val('').text('-- Select a Channel --')
			);
		}
	}
	else if ( curChannel ) channel.find('#wb-settings-channel').append(
		$(`<option id="wb-settings-channel-${curChannel.id}">`).val(curChannel.id).attr('selected', '').text(`${curChannel.id} – #${curChannel.name}`)
	);
	else channel.find('#wb-settings-channel').append(
		$(`<option id="wb-settings-channel-${settings.channel}">`).val(settings.channel).attr('selected', '').text(settings.channel)
	);
	fields.push(channel);
	let wiki = $('<div>').append(fieldset.wiki);
	wiki.find('#wb-settings-wiki').val(settings.wiki);
	wiki.find('#wb-settings-wiki-list').append(
		...allWikis.map( listWiki => $(`<option>`).val(listWiki) )
	);
	fields.push(wiki);
	let lang = $('<div>').append(fieldset.lang);
	lang.find(`#wb-settings-lang-${settings.lang}`).attr('selected', '');
	fields.push(lang);
	let display = $('<div>').append(fieldset.display);
	display.find(`#wb-settings-display-${settings.display}`).attr('checked', '');
	if ( !settings.patreon ) display.find('.wb-settings-display').filter( (i, radioDisplay) => {
		return ( i > rcgcdwLimit.display && !$(radioDisplay).has('input:checked').length );
	} ).remove();
	fields.push(display);
	let feeds = $('<div id="wb-settings-feeds-hide">').append(fieldset.feeds);
	if ( /\.(?:fandom\.com|wikia\.org)$/.test(new URL(settings.wiki).hostname) ) {
		if ( settings.wikiid ) {
			feeds.find('#wb-settings-feeds').attr('checked', '');
			if ( settings.rcid === -1 ) feeds.find('#wb-settings-feeds-only').attr('checked', '');
		}
		else feeds.find('#wb-settings-feeds-only-hide').attr('style', 'visibility: hidden;');
	}
	else {
		feeds.attr('style', 'display: none;');
		feeds.find('#wb-settings-feeds-only-hide').attr('style', 'visibility: hidden;');
	}
	fields.push(feeds);
	fields.push($(fieldset.save).val('Save'));
	if ( settings.channel && curChannel && hasPerm(curChannel.userPermissions, 'MANAGE_WEBHOOKS') ) {
		fields.push($(fieldset.delete).val('Delete').attr('onclick', `return confirm('Are you sure?');`));
	}
	var form = $('<fieldset>').append(...fields);
	if ( readonly ) {
		form.find('input').attr('readonly', '');
		form.find('input[type="checkbox"], input[type="radio"]:not(:checked), option').attr('disabled', '');
		form.find('input[type="submit"], button.addmore').remove();
	}
	return $('<form id="wb-settings" method="post" enctype="application/x-www-form-urlencoded">').append(
		$('<h2>').text(header),
		form
	);
}

const explanation = `
<h2>Recent Changes Webhook</h2>
<p>Wiki-Bot is able to run a recent changes webhook based on <a href="https://gitlab.com/piotrex43/RcGcDw" target="_blank">RcGcDw</a>. The recent changes can be displayed in compact text messages with inline links or embed messages with edit tags and category changes.</p>
<p>Requirements to add a recent changes webhook:</p>
<ul>
	<li>The wiki needs to run on <a href="https://www.mediawiki.org/wiki/MediaWiki_1.30" target="_blank">MediaWiki 1.30</a> or higher.</li>
	<li>The system message <code>MediaWiki:Custom-RcGcDw</code> needs to be set to the Discord server id <code id="server-id" class="user-select"></code>.</li>
</ul>
`;

/**
 * Let a user change recent changes scripts
 * @param {import('http').ServerResponse} res - The server response
 * @param {import('cheerio')} $ - The response body
 * @param {import('./util.js').Guild} guild - The current guild
 * @param {String[]} args - The url parts
 */
function dashboard_rcscript(res, $, guild, args) {
	db.all( 'SELECT discord.wiki mainwiki, discord.lang mainlang, (SELECT GROUP_CONCAT(DISTINCT wiki) FROM discord WHERE guild = ?) allwikis, webhook, configid, rcgcdw.wiki, rcgcdw.lang, display, wikiid, rcid FROM discord LEFT JOIN rcgcdw ON discord.guild = rcgcdw.guild WHERE discord.guild = ? AND discord.channel IS NULL ORDER BY configid ASC', [guild.id, guild.id], function(dberror, rows) {
		if ( dberror ) {
			console.log( '- Dashboard: Error while getting the RcGcDw: ' + dberror );
			createNotice($, 'error');
			$('#text .description').html(explanation);
			$('#text code#server-id').text(guild.id);
			$('.channel#rcscript').addClass('selected');
			let body = $.html();
			res.writeHead(200, {'Content-Length': body.length});
			res.write( body );
			return res.end();
		}
		if ( rows.length === 0 ) {
			createNotice($, 'nosettings', [guild.id]);
			$('#text .description').html(explanation);
			$('#text code#server-id').text(guild.id);
			$('.channel#rcscript').addClass('selected');
			let body = $.html();
			res.writeHead(200, {'Content-Length': body.length});
			res.write( body );
			return res.end();
		}
		var wiki = rows[0].mainwiki;
		var lang = rows[0].mainlang;
		var allwikis = rows[0].allwikis.split(',').sort();
		if ( rows.length === 1 && rows[0].configid === null ) rows.pop();
		$('<p>').text(`These are the recent changes webhooks for "${guild.name}":`).appendTo('#text .description');
		Promise.all(rows.map( row => {
			return got.get( 'https://discord.com/api/webhooks/' + row.webhook ).then( response => {
				if ( !response.body?.channel_id ) {
					console.log( '- Dashboard: ' + response.statusCode + ': Error while getting the webhook: ' + response.body?.message );
					row.channel = 'UNKNOWN';
				}
				else row.channel = response.body.channel_id;
			}, error => {
				console.log( '- Dashboard: Error while getting the webhook: ' + error );
				row.channel = 'UNKNOWN';
			} );
		} )).finally( () => {
			$('#channellist #rcscript').after(
				...rows.map( row => {
					return $('<a class="channel">').attr('id', `channel-${row.configid}`).append(
						$('<img>').attr('src', '/src/channel.svg'),
						$('<div>').text(`${row.configid} - ${( guild.channels.find( channel => {
							return channel.id === row.channel;
						} )?.name || row.channel )}`)
					).attr('href', `/guild/${guild.id}/rcscript/${row.configid}`);
				} ),
				( process.env.READONLY || rows.length >= rcgcdwLimit[( guild.patreon ? 'patreon' : 'default' )] ? '' :
				$('<a class="channel" id="channel-new">').append(
					$('<img>').attr('src', '/src/channel.svg'),
					$('<div>').text('New webhook')
				).attr('href', `/guild/${guild.id}/rcscript/new`) )
			);
			if ( args[4] === 'new' && !( process.env.READONLY || rows.length >= rcgcdwLimit[( guild.patreon ? 'patreon' : 'default' )] ) ) {
				$('.channel#channel-new').addClass('selected');
				createForm($, 'New Recent Changes Webhook', {
					wiki, lang: ( lang in allLangs.names ? lang : defaultSettings.lang ),
					display: 1, patreon: guild.patreon
				}, guild.channels, allwikis).attr('action', `/guild/${guild.id}/rcscript/new`).appendTo('#text');
			}
			else if ( rows.some( row => row.configid.toString() === args[4] ) ) {
				let row = rows.find( row => row.configid.toString() === args[4] );
				$(`.channel#channel-${row.configid}`).addClass('selected');
				createForm($, `Recent Changes Webhook #${row.configid}`, Object.assign({
					patreon: guild.patreon
				}, row), guild.channels, allwikis).attr('action', `/guild/${guild.id}/rcscript/${row.configid}`).appendTo('#text');
			}
			else {
				$('.channel#rcscript').addClass('selected');
				$('#text .description').html(explanation);
				$('#text code#server-id').text(guild.id);
			}
			let body = $.html();
			res.writeHead(200, {'Content-Length': body.length});
			res.write( body );
			return res.end();
		} );
	} );
}

/**
 * Change recent changes scripts
 * @param {Function} res - The server response
 * @param {import('./util.js').Settings} userSettings - The settings of the user
 * @param {String} guild - The id of the guild
 * @param {String|Number} type - The setting to change
 * @param {Object} settings - The new settings
 * @param {String} settings.channel
 * @param {String} settings.wiki
 * @param {String} settings.lang
 * @param {Number} settings.display
 * @param {String} [settings.feeds]
 * @param {String} [settings.feeds_only]
 * @param {String} [settings.save_settings]
 * @param {String} [settings.delete_settings]
 */
function update_rcscript(res, userSettings, guild, type, settings) {
	if ( type === 'default' ) {
		return res(`/guild/${guild}/rcscript`, 'savefail');
	}
	if ( !settings.save_settings === !settings.delete_settings ) {
		return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
	}
	if ( settings.save_settings ) {
		if ( !settings.wiki || !( settings.lang in allLangs.names ) ) {
			return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
		}
		if ( !['0', '1', '2', '3'].includes( settings.display ) ) {
			return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
		}
		settings.display = parseInt(settings.display, 10);
		if ( type === 'new' && !userSettings.guilds.isMember.get(guild).channels.some( channel => {
			return ( channel.id === settings.channel );
		} ) ) return res(`/guild/${guild}/rcscript/new`, 'savefail');
	}
	if ( settings.delete_settings && type === 'new' ) {
		return res(`/guild/${guild}/rcscript/new`, 'savefail');
	}
	if ( type === 'new' ) return sendMsg( {
		type: 'getMember',
		member: userSettings.user.id,
		guild: guild,
		channel: settings.channel
	} ).then( response => {
		if ( !response ) {
			userSettings.guilds.notMember.set(guild, userSettings.guilds.isMember.get(guild));
			userSettings.guilds.isMember.delete(guild);
			return res(`/guild/${guild}`, 'savefail');
		}
		if ( response === 'noMember' || !hasPerm(response.userPermissions, 'MANAGE_GUILD') ) {
			userSettings.guilds.isMember.delete(guild);
			return res('/', 'savefail');
		}
		if ( response.message === 'noChannel' || !hasPerm(response.botPermissions, 'MANAGE_WEBHOOKS') || !hasPerm(response.userPermissions, 'VIEW_CHANNEL', 'MANAGE_WEBHOOKS') ) {
			return res(`/guild/${guild}/rcscript/new`, 'savefail');
		}
		if ( settings.display > rcgcdwLimit.display && !response.patreon ) {
			settings.display = rcgcdwLimit.display;
		}
		return db.get( 'SELECT discord.lang, GROUP_CONCAT(configid) count FROM discord LEFT JOIN rcgcdw ON discord.guild = rcgcdw.guild WHERE discord.guild = ? AND discord.channel IS NULL', [guild], function(curerror, row) {
			if ( curerror ) {
				console.log( '- Dashboard: Error while checking for RcGcDw: ' + curerror );
				return res(`/guild/${guild}/rcscript/new`, 'savefail');
			}
			if ( !row ) return res(`/guild/${guild}/rcscript`, 'savefail');
			if ( row.count === null ) row.count = [];
			else row.count = row.count.split(',').map( configid => parseInt(configid, 10) );
			if ( row.count.length >= rcgcdwLimit[( response.patreon ? 'patreon' : 'default' )] ) {
				return res(`/guild/${guild}/rcscript`, 'savefail');
			}
			var wiki = Wiki.fromInput(settings.wiki);
			return got.get( wiki + 'api.php?&action=query&meta=allmessages|siteinfo&ammessages=custom-RcGcDw|recentchanges&amenableparser=true&siprop=general' + ( wiki.isFandom() ? '|variables' : '' ) + '&titles=Special:RecentChanges&format=json' ).then( fresponse => {
				if ( fresponse.statusCode === 404 && typeof fresponse.body === 'string' ) {
					let api = cheerio.load(fresponse.body)('head link[rel="EditURI"]').prop('href');
					if ( api ) {
						wiki = new Wiki(api.split('api.php?')[0], wiki);
						return got.get( wiki + 'api.php?action=query&meta=allmessages|siteinfo&ammessages=custom-RcGcDw|recentchanges&amenableparser=true&siprop=general' + ( wiki.isFandom() ? '|variables' : '' ) + '&titles=Special:RecentChanges&format=json' );
					}
				}
				return fresponse;
			} ).then( fresponse => {
				var body = fresponse.body;
				if ( fresponse.statusCode !== 200 || !body?.query?.allmessages || !body?.query?.general || !body?.query?.pages?.['-1'] ) {
					console.log( '- Dashboard: ' + fresponse.statusCode + ': Error while testing the wiki: ' + body?.error?.info );
					return res(`/guild/${guild}/rcscript/new`, 'savefail');
				}
				wiki.updateWiki(body.query.general);
				if ( body.query.general.generator.replace( /^MediaWiki 1\.(\d\d).*$/, '$1' ) < 30 ) {
					return res(`/guild/${guild}/rcscript/new`, 'mwversion', body.query.general.generator, body.query.general.sitename);
				}
				if ( body.query.allmessages[0]['*'] !== guild ) {
					return res(`/guild/${guild}/rcscript/new`, 'sysmessage', guild, wiki.toLink('MediaWiki:Custom-RcGcDw', 'action=edit'));
				}
				return db.get( 'SELECT reason FROM blocklist WHERE wiki = ?', [wiki.href], (blerror, block) => {
					if ( blerror ) {
						console.log( '- Dashboard: Error while getting the blocklist: ' + blerror );
						return res(`/guild/${guild}/rcscript/new`, 'savefail');
					}
					if ( block ) {
						console.log( `- Dashboard: ${wiki.href} is blocked: ${block.reason}` );
						return res(`/guild/${guild}/rcscript/new`, 'wikiblocked', body.query.general.sitename, block.reason);
					}
					if ( settings.feeds ) {
						let wikiid = body.query.variables?.find?.( variable => variable?.id === 'wgCityId' )?.['*'];
						if ( wiki.isFandom(false) && wikiid ) return got.get( 'https://services.fandom.com/discussion/' + wikiid + '/posts?limit=1&format=json&cache=' + Date.now(), {
							headers: {
								Accept: 'application/hal+json'
							}
						} ).then( dsresponse => {
							var dsbody = dsresponse.body;
							if ( dsresponse.statusCode !== 200 || !dsbody || dsbody.title ) {
								if ( dsbody?.title !== 'site doesn\'t exists' ) console.log( '- Dashboard: ' + dsresponse.statusCode + ': Error while checking for discussions: ' + dsbody?.title );
								return createWebhook();
							}
							return createWebhook(parseInt(wikiid, 10));
						}, error => {
							console.log( '- Dashboard: Error while checking for discussions: ' + error );
							return createWebhook();
						} );
					}
					return createWebhook();

					/**
					 * Creates the webhook.
					 * @param {Number} wikiid - The ID of the wiki.
					 */
					function createWebhook(wikiid = null) {
						var lang = new Lang(row.lang);
						var webhook_lang = new Lang(settings.lang, 'rcscript.webhook');
						sendMsg( {
							type: 'createWebhook',
							guild: guild,
							channel: settings.channel,
							name: ( body.query.allmessages[1]['*'] || 'Recent changes' ),
							reason: lang.get('rcscript.audit_reason', wiki.href),
							text: webhook_lang.get('created', body.query.general.sitename) + ( wikiid && settings.feeds_only ? '' : `\n<${wiki.toLink(body.query.pages['-1'].title)}>` ) + ( wikiid ? `\n<${wiki.href}f>` : '' )
						} ).then( webhook => {
							if ( !webhook ) return res(`/guild/${guild}/rcscript/new`, 'savefail');
							var configid = 1;
							for ( let i of row.count ) {
								if ( configid === i ) configid++;
								else break;
							}
							db.run( 'INSERT INTO rcgcdw(guild, configid, webhook, wiki, lang, display, wikiid, rcid) VALUES(?, ?, ?, ?, ?, ?, ?, ?)', [guild, configid, webhook, wiki.href, settings.lang, settings.display, wikiid, ( wikiid && settings.feeds_only ? -1 : null )], function (dberror) {
								if ( dberror ) {
									console.log( '- Dashboard: Error while adding the RcGcDw: ' + dberror );
									return res(`/guild/${guild}/rcscript/new`, 'savefail');
								}
								console.log( `- Dashboard: RcGcDw successfully added: ${guild}#${configid}` );
								res(`/guild/${guild}/rcscript/${configid}`, 'save');
								var text = lang.get('rcscript.dashboard.added', `<@${userSettings.user.id}>`, configid);
								text += `\n${lang.get('rcscript.channel')} <#${settings.channel}>`;
								text += `\n${lang.get('rcscript.wiki')} <${wiki.href}>`;
								text += `\n${lang.get('rcscript.lang')} \`${allLangs.names[settings.lang]}\``;
								text += `\n${lang.get('rcscript.display')} \`${display_types[settings.display]}\``;
								if ( wikiid && settings.feeds_only ) text += `\n${lang.get('rcscript.rc')} *\`${lang.get('rcscript.disabled')}\`*`;
								if ( wiki.isFandom(false) ) text += `\n${lang.get('rcscript.feeds')} *\`${lang.get('rcscript.' + ( wikiid ? 'enabled' : 'disabled' ))}\`*`;
								text += `\n<${new URL(`/guild/${guild}/rcscript/${configid}`, process.env.dashboard).href}>`;
								sendMsg( {
									type: 'notifyGuild', guild, text,
									file: [`./RcGcDb/locale/widgets/${settings.lang}.png`]
								} ).catch( error => {
									console.log( '- Dashboard: Error while notifying the guild: ' + error );
								} );
							} );
						}, error => {
							console.log( '- Dashboard: Error while creating the webhook: ' + error );
							return res(`/guild/${guild}/rcscript/new`, 'savefail');
						} );
					}
				} );
			}, error => {
				console.log( '- Dashboard: Error while testing the wiki: ' + error );
				return res(`/guild/${guild}/rcscript/new`, 'savefail');
			} );
		} );
	}, error => {
		console.log( '- Dashboard: Error while getting the member: ' + error );
		return res(`/guild/${guild}/rcscript/new`, 'savefail');
	} );
	type = parseInt(type, 10);
	return db.get( 'SELECT discord.lang mainlang, webhook, rcgcdw.wiki, rcgcdw.lang, display, wikiid, rcid FROM discord LEFT JOIN rcgcdw ON discord.guild = rcgcdw.guild AND configid = ? WHERE discord.guild = ? AND discord.channel IS NULL', [type, guild], function(curerror, row) {
		if ( curerror ) {
			console.log( '- Dashboard: Error while checking for RcGcDw: ' + curerror );
			return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
		}
		if ( !row?.webhook ) return res(`/guild/${guild}/rcscript`, 'savefail');
		return got.get( 'https://discord.com/api/webhooks/' + row.webhook ).then( wresponse => {
			if ( !wresponse.body?.channel_id ) {
				console.log( '- Dashboard: ' + wresponse.statusCode + ': Error while getting the webhook: ' + wresponse.body?.message );
				return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
			}
			row.channel = wresponse.body.channel_id;
			var newChannel = false;
			if ( settings.save_settings && row.channel !== settings.channel ) {
				if ( !userSettings.guilds.isMember.get(guild).channels.some( channel => {
					return ( channel.id === settings.channel );
				} ) ) return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
				newChannel = true;
			}
			return sendMsg( {
				type: 'getMember',
				member: userSettings.user.id,
				guild: guild,
				channel: row.channel,
				newchannel: ( newChannel ? settings.channel : undefined )
			} ).then( response => {
				if ( !response ) {
					userSettings.guilds.notMember.set(guild, userSettings.guilds.isMember.get(guild));
					userSettings.guilds.isMember.delete(guild);
					return res(`/guild/${guild}`, 'savefail');
				}
				if ( response === 'noMember' || !hasPerm(response.userPermissions, 'MANAGE_GUILD') ) {
					userSettings.guilds.isMember.delete(guild);
					return res('/', 'savefail');
				}
				if ( response.message === 'noChannel' ) {
					return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
				}
				if ( settings.delete_settings ) {
					if ( !hasPerm(response.userPermissions, 'VIEW_CHANNEL', 'MANAGE_WEBHOOKS') ) {
						return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
					}
					return db.run( 'DELETE FROM rcgcdw WHERE webhook = ?', [row.webhook], function (delerror) {
						if ( delerror ) {
							console.log( '- Dashboard: Error while removing the RcGcDw: ' + delerror );
							return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
						}
						console.log( `- Dashboard: RcGcDw successfully removed: ${guild}#${type}` );
						res(`/guild/${guild}/rcscript`, 'save');
						var lang = new Lang(row.mainlang);
						var webhook_lang = new Lang(row.lang, 'rcscript.webhook');
						got.post( 'https://discord.com/api/webhooks/' + row.webhook, {
							json: {
								content: webhook_lang.get('deleted')
							}
						} ).then( delresponse => {
							if ( delresponse.statusCode !== 204 ) {
								console.log( '- Dashboard: ' + delresponse.statusCode + ': Error while sending to the webhook: ' + delresponse.body?.message );
							}
						}, error => {
							console.log( '- Dashboard: Error while sending to the webhook: ' + error );
						} ).finally( () => {
							got.delete( 'https://discord.com/api/webhooks/' + row.webhook, {
								headers: {
									'X-Audit-Log-Reason': lang.get('rcscript.audit_reason_delete')
								}
							} ).then( delresponse => {
								if ( delresponse.statusCode !== 204 ) {
									console.log( '- Dashboard: ' + delresponse.statusCode + ': Error while removing the webhook: ' + delresponse.body?.message );
								}
								else console.log( `- Dashboard: Webhook successfully removed: ${guild}#${row.channel}` );
							}, error => {
								console.log( '- Dashboard: Error while removing the webhook: ' + error );
							} )
						} );
						var text = lang.get('rcscript.dashboard.deleted', `<@${userSettings.user.id}>`, type);
						text += `\n${lang.get('rcscript.channel')} <#${row.channel}>`;
						text += `\n${lang.get('rcscript.wiki')} <${row.wiki}>`;
						text += `\n${lang.get('rcscript.lang')} \`${allLangs.names[row.lang]}\``;
						text += `\n${lang.get('rcscript.display')} \`${display_types[row.display]}\``;
						if ( row.rcid === -1 ) {
							text += `\n${lang.get('rcscript.rc')} *\`${lang.get('rcscript.disabled')}\`*`;
						}
						if ( new Wiki(row.wiki).isFandom(false) ) text += `\n${lang.get('rcscript.feeds')} *\`${lang.get('rcscript.' + ( row.wikiid ? 'enabled' : 'disabled' ))}\`*`;
						text += `\n<${new URL(`/guild/${guild}/rcscript`, process.env.dashboard).href}>`;
						sendMsg( {
							type: 'notifyGuild', guild, text
						} ).catch( error => {
							console.log( '- Dashboard: Error while notifying the guild: ' + error );
						} );
					} );
				}
				if ( newChannel && ( !hasPerm(response.botPermissions, 'MANAGE_WEBHOOKS') 
				|| !hasPerm(response.userPermissions, 'VIEW_CHANNEL', 'MANAGE_WEBHOOKS') 
				|| !hasPerm(response.userPermissionsNew, 'VIEW_CHANNEL', 'MANAGE_WEBHOOKS') 
				|| !hasPerm(response.botPermissionsNew, 'MANAGE_WEBHOOKS') ) ) {
					return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
				}
				var hasDiff = false;
				if ( newChannel ) hasDiff = true;
				if ( row.wiki !== settings.wiki ) hasDiff = true;
				if ( row.lang !== settings.lang ) hasDiff = true;
				if ( row.display !== settings.display ) hasDiff = true;
				if ( ( row.rcid !== -1 ) !== !( settings.feeds && settings.feeds_only ) ) hasDiff = true;
				if ( !row.wikiid !== !settings.feeds ) hasDiff = true;
				if ( !hasDiff ) return res(`/guild/${guild}/rcscript/${type}`, 'save');
				var wiki = Wiki.fromInput(settings.wiki);
				return got.get( wiki + 'api.php?&action=query&meta=allmessages|siteinfo&ammessages=custom-RcGcDw&amenableparser=true&siprop=general' + ( wiki.isFandom() ? '|variables' : '' ) + '&format=json' ).then( fresponse => {
					if ( fresponse.statusCode === 404 && typeof fresponse.body === 'string' ) {
						let api = cheerio.load(fresponse.body)('head link[rel="EditURI"]').prop('href');
						if ( api ) {
							wiki = new Wiki(api.split('api.php?')[0], wiki);
							return got.get( wiki + 'api.php?action=query&meta=allmessages|siteinfo&ammessages=custom-RcGcDw&amenableparser=true&siprop=general' + ( wiki.isFandom() ? '|variables' : '' ) + '&format=json' );
						}
					}
					return fresponse;
				} ).then( fresponse => {
					var body = fresponse.body;
					if ( fresponse.statusCode !== 200 || !body?.query?.allmessages || !body?.query?.general ) {
						console.log( '- Dashboard: ' + fresponse.statusCode + ': Error while testing the wiki: ' + body?.error?.info );
						return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
					}
					wiki.updateWiki(body.query.general);
					if ( body.query.general.generator.replace( /^MediaWiki 1\.(\d\d).*$/, '$1' ) < 30 ) {
						return res(`/guild/${guild}/rcscript/${type}`, 'mwversion', body.query.general.generator, body.query.general.sitename);
					}
					if ( row.wiki !== wiki.href && body.query.allmessages[0]['*'] !== guild ) {
						return res(`/guild/${guild}/rcscript/${type}`, 'sysmessage', guild, wiki.toLink('MediaWiki:Custom-RcGcDw', 'action=edit'));
					}
					return db.get( 'SELECT reason FROM blocklist WHERE wiki = ?', [wiki.href], (blerror, block) => {
						if ( blerror ) {
							console.log( '- Dashboard: Error while getting the blocklist: ' + blerror );
							return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
						}
						if ( block ) {
							console.log( `- Dashboard: ${wiki.href} is blocked: ${block.reason}` );
							return res(`/guild/${guild}/rcscript/${type}`, 'wikiblocked', body.query.general.sitename, block.reason);
						}
						if ( settings.feeds ) {
							let wikiid = body.query.variables?.find?.( variable => variable?.id === 'wgCityId' )?.['*'];
							if ( wiki.isFandom(false) && wikiid ) return got.get( 'https://services.fandom.com/discussion/' + wikiid + '/posts?limit=1&format=json&cache=' + Date.now(), {
								headers: {
									Accept: 'application/hal+json'
								}
							} ).then( dsresponse => {
								var dsbody = dsresponse.body;
								if ( dsresponse.statusCode !== 200 || !dsbody || dsbody.title ) {
									if ( dsbody?.title !== 'site doesn\'t exists' ) console.log( '- Dashboard: ' + dsresponse.statusCode + ': Error while checking for discussions: ' + dsbody?.title );
									return updateWebhook();
								}
								return updateWebhook(parseInt(wikiid, 10));
							}, error => {
								console.log( '- Dashboard: Error while checking for discussions: ' + error );
								return updateWebhook();
							} );
						}
						return updateWebhook();

						/**
						 * Creates the webhook.
						 * @param {Number} wikiid - The ID of the wiki.
						 */
						function updateWebhook(wikiid = null) {
							var sql = 'UPDATE rcgcdw SET wiki = ?, lang = ?, display = ?, wikiid = ? WHERE webhook = ?';
							var sqlargs = [wiki.href, settings.lang, settings.display, wikiid];
							if ( wikiid && settings.feeds_only ) {
								sql = 'UPDATE rcgcdw SET wiki = ?, lang = ?, display = ?, wikiid = ?, rcid = ? WHERE webhook = ?';
								sqlargs.push(-1);
							}
							db.run( sql, [...sqlargs, row.webhook], function (dberror) {
								if ( dberror ) {
									console.log( '- Dashboard: Error while updating the RcGcDw: ' + dberror );
									return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
								}
								console.log( `- Dashboard: RcGcDw successfully updated: ${guild}#${type}` );
								var lang = new Lang(row.mainlang);
								var webhook_lang = new Lang(settings.lang, 'rcscript.webhook');
								var diff = [];
								var file = [];
								var webhook_diff = [];
								if ( newChannel ) {
									diff.push(lang.get('rcscript.channel') + ` ~~<#${row.channel}>~~ → <#${settings.channel}>`);
									webhook_diff.push(webhook_lang.get('dashboard.channel'));
								}
								if ( row.wiki !== wiki.href ) {
									diff.push(lang.get('rcscript.wiki') + ` ~~<${row.wiki}>~~ → <${wiki.href}>`);
									webhook_diff.push(webhook_lang.get('dashboard.wiki', `[${body.query.general.sitename}](<${wiki.href}>)`));
								}
								if ( row.lang !== settings.lang ) {
									file.push(`./RcGcDb/locale/widgets/${settings.lang}.png`);
									diff.push(lang.get('rcscript.lang') + ` ~~\`${allLangs.names[row.lang]}\`~~ → \`${allLangs.names[settings.lang]}\``);
									webhook_diff.push(webhook_lang.get('dashboard.lang', allLangs.names[settings.lang]));
								}
								if ( row.display !== settings.display ) {
									diff.push(lang.get('rcscript.display') + ` ~~\`${display_types[row.display]}\`~~ → \`${display_types[settings.display]}\``);
									webhook_diff.push(webhook_lang.get('dashboard.display_' + display_types[settings.display]));
								}
								if ( ( row.rcid !== -1 ) !== !( wikiid && settings.feeds_only ) ) {
									diff.push(lang.get('rcscript.rc') + ` ~~*\`${lang.get('rcscript.' + ( row.rcid === -1 ? 'disabled' : 'enabled' ))}\`*~~ → *\`${lang.get('rcscript.' + ( settings.feeds_only ? 'disabled' : 'enabled' ))}\`*`);
									webhook_diff.push(webhook_lang.get('dashboard.' + ( settings.feeds_only ? 'disabled_rc' : 'enabled_rc' )));
								}
								if ( !row.wikiid !== !wikiid ) {
									diff.push(lang.get('rcscript.feeds') + ` ~~*\`${lang.get('rcscript.' + ( row.wikiid ? 'enabled' : 'disabled' ))}\`*~~ → *\`${lang.get('rcscript.' + ( wikiid ? 'enabled' : 'disabled' ))}\`*`);
									webhook_diff.push(webhook_lang.get('dashboard.' + ( wikiid ? 'disabled_feeds' : 'enabled_feeds' )));
								}
								if ( newChannel ) return sendMsg( {
									type: 'moveWebhook',
									guild: guild,
									webhook: row.webhook,
									channel: settings.channel,
									reason: lang.get('rcscript.audit_reason_move'),
									text: webhook_lang.get('dashboard.updated') + '\n' + webhook_diff.join('\n')
								} ).then( webhook => {
									if ( !webhook ) return Promise.reject();
									res(`/guild/${guild}/rcscript/${type}`, 'save');
									var text = lang.get('rcscript.dashboard.updated', `<@${userSettings.user.id}>`, type);
									text += '\n' + diff.join('\n');
									text += `\n<${new URL(`/guild/${guild}/rcscript/${type}`, process.env.dashboard).href}>`;
									sendMsg( {
										type: 'notifyGuild', guild, text, file
									} ).catch( error => {
										console.log( '- Dashboard: Error while notifying the guild: ' + error );
									} );
								}, error => {
									console.log( '- Dashboard: Error while moving the webhook: ' + error );
									return Promise.reject();
								} ).catch( () => {
									diff.shift();
									webhook_diff.shift();
									if ( !diff.length ) {
										return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
									}
									res(`/guild/${guild}/rcscript/${type}`, 'movefail');
									diff.shift();
									webhook_diff.shift();
									got.post( 'https://discord.com/api/webhooks/' + row.webhook, {
										json: {
											content: webhook_lang.get('dashboard.updated') + '\n' + webhook_diff.join('\n')
										}
									} ).then( delresponse => {
										if ( delresponse.statusCode !== 204 ) {
											console.log( '- Dashboard: ' + delresponse.statusCode + ': Error while sending to the webhook: ' + delresponse.body?.message );
										}
									}, error => {
										console.log( '- Dashboard: Error while sending to the webhook: ' + error );
									} )
									var text = lang.get('rcscript.dashboard.updated', `<@${userSettings.user.id}>`, type);
									text += '\n' + diff.join('\n');
									text += `\n<${new URL(`/guild/${guild}/rcscript/${type}`, process.env.dashboard).href}>`;
									sendMsg( {
										type: 'notifyGuild', guild, text, file
									} ).catch( error => {
										console.log( '- Dashboard: Error while notifying the guild: ' + error );
									} );
								} );
								res(`/guild/${guild}/rcscript/${type}`, 'save');
								got.post( 'https://discord.com/api/webhooks/' + row.webhook, {
									json: {
										content: webhook_lang.get('dashboard.updated') + '\n' + webhook_diff.join('\n')
									}
								} ).then( delresponse => {
									if ( delresponse.statusCode !== 204 ) {
										console.log( '- Dashboard: ' + delresponse.statusCode + ': Error while sending to the webhook: ' + delresponse.body?.message );
									}
								}, error => {
									console.log( '- Dashboard: Error while sending to the webhook: ' + error );
								} )
								var text = lang.get('rcscript.dashboard.updated', `<@${userSettings.user.id}>`, type);
								text += '\n' + diff.join('\n');
								text += `\n<${new URL(`/guild/${guild}/rcscript/${type}`, process.env.dashboard).href}>`;
								sendMsg( {
									type: 'notifyGuild', guild, text, file
								} ).catch( error => {
									console.log( '- Dashboard: Error while notifying the guild: ' + error );
								} );
							} );
						}
					} );
				}, error => {
					console.log( '- Dashboard: Error while testing the wiki: ' + error );
					return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
				} );
			}, error => {
				console.log( '- Dashboard: Error while getting the member: ' + error );
				return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
			} );
		}, error => {
			console.log( '- Dashboard: Error while getting the webhook: ' + error );
			return res(`/guild/${guild}/rcscript/${type}`, 'savefail');
		} );
	} );
}

module.exports = {
	get: dashboard_rcscript,
	post: update_rcscript
};