User:Weeklyd3/scripts/revert.js

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(function() {
	const currentPageName = (mw.config.get("wgFormattedNamespaces")[mw.config.get("wgNamespaceNumber")].length ? (mw.config.get("wgFormattedNamespaces")[mw.config.get("wgNamespaceNumber")] + ":") : "")
    + mw.config.get("wgTitle");
    console.log(`Running on [[${currentPageName}]]`);
    globalThis.currentPageName = currentPageName;
var apiURL;
if (location.href.includes('/w')) apiURL = '/w/api.php';
else if (location.href.includes('/index.php')) apiURL = 'api.php';
globalThis.apiURL = apiURL;
if (document.querySelector('table.diff')) {
	// Probably a diff page
	if (!document.querySelector('#mw-diff-ntitle1 strong a').textContent.startsWith('Latest revision')) return console.warn('Not looking at diff w/ latest version.');
	const buttons = document.createElement('div');
	buttons.classList.add('action-buttons');
	const VANDAL = document.createElement('button');
	VANDAL.textContent = 'Vandalism?';
	VANDAL.addEventListener('click', function() {
		roll('[[Project:Vandalism|Vandalism]]', this);
	});
	buttons.appendChild(VANDAL);
	const TEST = document.createElement('button');
	TEST.textContent = 'Test edit?';
	TEST.addEventListener('click', function() {
		roll('[[Project:Test edits|Test edits]]', this);
	});
	buttons.appendChild(TEST);
	const UNSOURCED = document.createElement('button');
	UNSOURCED.textContent = 'Poorly sourced edit?';
	UNSOURCED.addEventListener('click', function() {
		roll('Not [[Project:Verifiability|verifiable]] via [[Project:RS|reliable sources]]', this);
	});
	buttons.appendChild(UNSOURCED);
	const COPYVIO = document.createElement('button');
	COPYVIO.textContent = 'Copyright violation?';
	COPYVIO.addEventListener('click', function() {
		this.parentNode.appendChild(document.createTextNode('Please be sure to ask for revision deletion later.'));
		roll('[[Project:Copyright violations|Copyright violation]]', this);
	});
	buttons.appendChild(COPYVIO);
	const custom = document.createElement('button');
	custom.textContent = 'Something else';
	custom.addEventListener('click', function() {
		const reason = prompt(`Why are you rolling back this edit?\n[An empty reason or CANCEL aborts the rollback.]`);
		if (!reason) return;
		roll(reason, this);
	});
	buttons.appendChild(custom);
	const br = document.createElement('br');
	buttons.appendChild(br);
	document.querySelector('#mw-diff-ntitle1').after(buttons);
} else {
	console.warn('Not looking at diff page.');
}
})();
function disableAllActionButtons() {
	const buttons = document.querySelectorAll('.action-buttons button');
	for (var i = 0; i < buttons.length; i++) {
		buttons[i].disabled = 'disabled';
	}
}
function enableAllActionButtons() {
	const buttons = document.querySelectorAll('.action-buttons button');
	for (var i = 0; i < buttons.length; i++) {
		buttons[i].disabled = '';
	}
}
function roll(reason, t, defaultSummary = true) {
	t.disabled = 'disabled';
	console.log(t.textContent);
	t.setAttribute('data-orig', t.textContent);
	t.textContent = 'Reverting (getting history of page)...';
	disableAllActionButtons();
	fetch(`${apiURL}?action=query&format=json&prop=revisions&titles=${encodeURIComponent(currentPageName)}&rvprop=ids|user&rvlimit=1`)
	.then(function(js) {
		return js.json();
	})
	.then(function(json) {
		var page = json.query.pages[Object.keys(json.query.pages)[0]].revisions[0];
		globalThis.p = page.revid;
		globalThis.user = page.user;
		t.textContent = `ID to revert: ${p}, getting token`;
	})
	.then(function() {
		return fetch(`${apiURL}?action=query&meta=tokens&format=json`, {
			credentials: 'include'
		});
	})
	.then(function(res) {
		return res.json();
	})
	.then(function(json) {
		globalThis.token = json.query.tokens.csrftoken;
	})
	.then(function() {
		var additional;
		t.textContent = 'Reverting edit...';
		if (defaultSummary) additional = encodeURIComponent(`Revert edits by [[User:${user}|${user}]] ([[user talk:${user}|talk]]): `);
		else additional = '';
		const baudy = new FormData();
		baudy.set('token', globalThis.token);
	return fetch(`${apiURL}?action=edit&summary=${additional}${encodeURIComponent(reason + " ([[User:weeklyd3/revert|weeklyd3's revert script]])")}&title=${currentPageName}&origin=${location.origin}&undo=${globalThis.p}&format=json`, {
		"credentials": 'include',
		'method': 'POST',
		'body': baudy
	});
	})
	.then(function(res) {
		return res.json();
	})
	.then(function(js) {
		console.log(js);
		if (js.error) {
			mw.notify(js.error.info, {title: `Aww man. Error:\n${js.error.code}`});
			t.textContent = t.getAttribute('data-orig');
			t.removeAttribute('data-orig');
			enableAllActionButtons();
			return;
		}
		t.textContent = 'Rollback completed, reloading page in a second...';
		setTimeout(function() { location.reload(); }, 1000);
	});
}