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import React from 'dom-chef';
import select from 'select-dom';
import elementReady from 'element-ready';
import * as pageDetect from 'github-url-detection';
import features from '../feature-manager.js';
import api from '../github-helpers/api.js';
import GitHubFileURL from '../github-helpers/github-file-url.js';
import addNotice from '../github-widgets/notice-bar.js';
import {linkifiedURLClass} from '../github-helpers/dom-formatters.js';
import {buildRepoURL, isPermalink} from '../github-helpers/index.js';
import {saveOriginalHref} from './sort-conversations-by-update-time.js';
import observe from '../helpers/selector-observer.js';
import GetCommitAtDate from './comments-time-machine-links.gql';
async function updateURLtoDatedSha(url: GitHubFileURL, date: string): Promise<void> {
const {repository} = await api.v4(GetCommitAtDate, {variables: {date, branch: url.branch}});
const [{oid}] = repository.ref.target.history.nodes;
select('a.rgh-link-date')!.pathname = url.assign({branch: oid}).pathname;
}
async function showTimeMachineBar(): Promise<void | false> {
const url = new URL(location.href); // This can't be replaced with `GitHubFileURL` because `getCurrentGitRef` throws on 404s
const date = url.searchParams.get('rgh-link-date')!;
// Drop parameter from current page after using it
url.searchParams.delete('rgh-link-date');
history.replaceState(history.state, document.title, url.href);
if (pageDetect.is404()) {
const pathnameParts = url.pathname.split('/');
pathnameParts[4] = `HEAD@{${date}}`;
url.pathname = pathnameParts.join('/');
} else {
// This feature only makes sense if the URL points to a non-permalink
if (await isPermalink()) {
return false;
}
// Selector note: isRepoFile and isRepoTree have different DOM for this element
const lastCommitDate = await elementReady('.Box-header relative-time', {waitForChildren: false});
if (lastCommitDate && date > lastCommitDate.getAttribute('datetime')!) {
return false;
}
const parsedUrl = new GitHubFileURL(location.href);
// Due to GitHub’s bug of supporting branches with slashes: #2901
void updateURLtoDatedSha(parsedUrl, date); // Don't await it, since the link will usually work without the update
parsedUrl.branch = `${parsedUrl.branch}@{${date}}`;
url.pathname = parsedUrl.pathname;
}
const link = (
<a className="rgh-link-date" href={url.href} data-turbo-frame="repo-content-turbo-frame">
view this object as it appeared at the time of the comment
</a>
);
await addNotice(
<>You can also {link} (<relative-time datetime={date}/>)</>,
);
}
function addInlineLinks(menu: HTMLElement, timestamp: string): void {
const comment = menu.closest('.js-comment')!;
// TODO: Move selector directly to observer
const links = select.all(`
a[href^="${location.origin}"][href*="/blob/"]:not(.${linkifiedURLClass}),
a[href^="${location.origin}"][href*="/tree/"]:not(.${linkifiedURLClass})
`, comment);
for (const link of links) {
const linkParts = link.pathname.split('/');
// Skip permalinks
if (/^[\da-f]{40}$/.test(linkParts[4])) {
continue;
}
saveOriginalHref(link);
const searchParameters = new URLSearchParams(link.search);
searchParameters.set('rgh-link-date', timestamp);
link.search = String(searchParameters);
}
}
function addDropdownLink(menu: HTMLElement, timestamp: string): void {
select('.show-more-popover', menu.parentElement!)!.append(
<div className="dropdown-divider"/>,
<a
href={buildRepoURL(`tree/HEAD@{${timestamp}}`)}
className={'dropdown-item btn-link ' + linkifiedURLClass}
role="menuitem"
title="Browse repository like it appeared on this day"
>
View repo at this time
</a>,
);
}
function init(signal: AbortSignal): void {
observe('.timeline-comment-actions > details:last-child', menu => {
if (menu.closest('.js-pending-review-comment')) {
return;
}
// The timestamp of main review comments isn't in their header but in the timeline event above #5423
const timestamp = menu
.closest('.js-comment:not([id^="pullrequestreview-"]), .js-timeline-item')!
.querySelector('relative-time')!
.attributes.datetime.value;
addInlineLinks(menu, timestamp);
addDropdownLink(menu, timestamp);
}, {signal});
}
void features.add(import.meta.url, {
include: [
pageDetect.hasComments,
],
exclude: [
pageDetect.isGist,
],
init,
}, {
asLongAs: [
() => new URLSearchParams(location.search).has('rgh-link-date'),
],
include: [
pageDetect.is404,
pageDetect.isSingleFile,
pageDetect.isRepoTree,
],
init: showTimeMachineBar,
});
/*
Test URLs
Find them in https://github.com/refined-github/refined-github/pull/1863
See the bar on:
- https://github.com/sindresorhus/refined-github/blob/main/source/features/mark-merge-commits-in-list.tsx?rgh-link-date=2019-03-04T13%3A04%3A18Z
*/
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