利用者:DrakoBot/botreq 削除依頼ログ.js

//<nowiki>
$.when(
	mw.loader.using('mediawiki.api'),
	$.ready
).then(() => {

	if (mw.config.get('wgAction') !== 'edit') return;

	const /** @type {HTMLInputElement?} */ wpSummary = document.querySelector('#wpSummary');
	const /** @type {HTMLInputElement?} */ wpMinoredit = document.querySelector('#wpMinoredit');
	const /** @type {HTMLInputElement?} */ wpWatchthis = document.querySelector('#wpWatchthis');
	if (wpSummary && wpMinoredit && wpWatchthis) {
		if (mw.config.get('wgPageName') !== '利用者:DrakoBot/botreq_削除依頼ログ') {
			wpSummary.value += '削除済みノートの修正 ([[Special:PermaLink/96388726#削除済みノートをテンプレートへ置換|BOTREQ]])';
			wpMinoredit.checked = true;
			wpWatchthis.checked = false;
		} else {
			wpSummary.value += 'update';
			wpMinoredit.checked = false;
			wpWatchthis.checked = true;
		}
		mw.notify('編集フィールドの値を自動設定しました。');
	}

	const api = new mw.Api();
	/**
	 * @param {string[]} pagetitles 
	 * @returns {Promise<Object.<string, string>>} pagetitles as keys and 1st revision timestamps as values
	 */
	const getCreationDates = async (pagetitles) => {

		/**
		 * @param {string} title
		 * @returns {JQueryPromise<object>} API response or empty object
		 */
		const req = (title) => {
			return api.get({
				action: 'query',
				titles: title,
				prop: 'revisions',
				rvprop: 'timestamp',
				rvlimit: 1,
				rvdir: 'newer',
				formatversion: '2'
			}).then((res) => {
				return res || {};
			}).catch((code, err) => {
				console.log(err);
				return {};
			});
		};

		const deferreds = [];
		pagetitles.forEach((t) => {
			deferreds.push(req(t));
		});
		const result = await Promise.all(deferreds);
		return result.reduce((acc, res, i) => {
			let resPg;
			if (res && res.query && (resPg = res.query.pages) && resPg[0]) {
				const resRv = resPg[0].revisions;
				let ts = resRv && resRv[0] && resRv[0].timestamp || '';
				let m;
				if (ts && (m = ts.match(/^(\d{4})-(\d{2})-(\d{2})T/))) {
					ts = `${m[1]}年${m[2].replace(/^0/, '')}月${m[3].replace(/^0/, '')}日`;
				}
				acc[pagetitles[i]] = ts;
			} else {
				acc[pagetitles[i]] = '';
			}
			return acc;
		}, Object.create(null));

	};

	/**
	 * @returns {string[]?}
	 */
	const getTitlesFromSelection = () => {

		const sel = window.getSelection();
		if (!sel) return null;
		const text = sel.toString();
		
		const regex = /\[\[(.+?)(?:\|.*?)?\]\]/g;
		const ret = [];
		let m;
		while ((m = regex.exec(text))) { // Parse wikilinks
			ret.push(m[1]);
		}
		return ret.length ? ret : null;

	};

	const editor = document.querySelector('#editform');
	if (editor && editor.parentElement) {
		const div = document.createElement('div');
		const output = document.createElement('div');
		output.style.height = '10em';
		output.style.overflowY = 'scroll';
		output.style.border = '1px solid silver';
		div.appendChild(output);
		const p = document.createElement('p');
		output.appendChild(p);
		const btn = document.createElement('input');
		btn.type = 'button';
		btn.value = 'Query page existence';
		btn.addEventListener('click', async function(e) {
			const titles = getTitlesFromSelection();
			if (!titles) {
				mw.notify('Failed to parse pagetitles from the selection.');
				return;
			}
			this.disabled = true;
			const dates = await getCreationDates(titles);
			p.innerHTML = JSON.stringify(dates, null, 4).replace(/^[\s{]*|[\s}]*$/g, '').replace(/\n/g, '<br/>');
			this.disabled = false;
		});
		div.appendChild(btn);
		editor.parentElement.insertBefore(div, editor);
	}

});
//</nowiki>