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import React from 'dom-chef';
import cache from 'webext-storage-cache';
import select from 'select-dom';
import elementReady from 'element-ready';
import * as pageDetect from 'github-url-detection';
import features from '.';
import * as api from '../github-helpers/api';
import pluralize from '../helpers/pluralize';
import {getForkedRepo, getUsername, getRepoURL} from '../github-helpers';
function getLinkCopy(count: number): string {
return pluralize(count, 'one open pull request', '$$ open pull requests');
}
const countPRs = cache.function(async (forkedRepo: string): Promise<[number, number?]> => {
const {search} = await api.v4(`
search(
first: 100,
type: ISSUE,
query: "repo:${forkedRepo} is:pr is:open author:${getUsername()}"
) {
nodes {
... on PullRequest {
number
headRepository {
nameWithOwner
}
}
}
}
`);
// Only show PRs originated from the current repo
const prs = search.nodes.filter((pr: AnyObject) => pr.headRepository.nameWithOwner.toLowerCase() === getRepoURL());
// If only one is found, pass the PR number so we can link to the PR directly
if (prs.length === 1) {
return [1, prs[0].number];
}
return [prs.length];
}, {
maxAge: 1 / 2, // Stale after 12 hours
staleWhileRevalidate: 2,
cacheKey: ([forkedRepo]): string => 'prs-on-forked-repo:' + forkedRepo + ':' + getRepoURL()
});
async function getPRs(): Promise<[number, string] | []> {
// Wait for the tab bar to be loaded
await elementReady([
'.pagehead + *', // Pre "Repository refresh" layout
'.UnderlineNav-body + *'
].join());
if (!pageDetect.canUserEditRepo()) {
return [];
}
const forkedRepo = getForkedRepo()!;
const [count, firstPr] = await countPRs(forkedRepo);
if (count === 1) {
return [count, `/${forkedRepo}/pull/${firstPr!}`];
}
return [count, `/${forkedRepo}/pulls?q=is%3Apr+is%3Aopen+sort%3Aupdated-desc+author%3A${getUsername()}`];
}
async function initHeadHint(): Promise<void | false> {
const [count, url] = await getPRs();
if (!count) {
return false;
}
select<HTMLAnchorElement>(`[data-hovercard-type="repository"][href="/${getForkedRepo()!}"]`)!.after(
<> with <a href={url}>{getLinkCopy(count)}</a></>
);
}
async function initDeleteHint(): Promise<void | false> {
const [count, url] = await getPRs();
if (!count) {
return false;
}
select('details-dialog[aria-label*="Delete"] .Box-body p:first-child')!.after(
<p className="flash flash-warn">
It will also abandon <a href={url}>your {getLinkCopy(count)}</a> in <strong>{getForkedRepo()!}</strong> and you’ll no longer be able to edit {count === 1 ? 'it' : 'them'}.
</p>
);
}
void features.add({
id: __filebasename,
description: 'In your forked repos, shows number of your open PRs to the original repo.',
screenshot: 'https://user-images.githubusercontent.com/1922624/76398271-e0648500-637c-11ea-8210-53dda1be9d51.png'
}, {
include: [
pageDetect.isRepo
],
exclude: [
() => !pageDetect.isForkedRepo()
],
waitForDomReady: false,
init: initHeadHint
}, {
include: [
pageDetect.isRepoMainSettings
],
exclude: [
() => !pageDetect.isForkedRepo()
],
waitForDomReady: false,
init: initDeleteHint
});
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