Add tooltips to SCP links on the wiki.
// ==UserScript==
// @name SCP Tooltips
// @namespace alexchandel
// @version 1
// @description Add tooltips to SCP links on the wiki.
// @author Alex Chandel
// @match *://*.scpwiki.com/*
// @match *://*.scp-wiki.net/*
// @match *://*.scpwiki.wikidot.com/*
// @grant GM.getValue
// @grant GM.setValue
// ==/UserScript==
/* jshint esversion: 6 */
'use strict';
/** -> Promise<Dict<path, name>> */
function updateNames () {
const re = new RegExp(' - (.+)')
const reqs = ['', '-2', '-3', '-4', '-5', '-6'].map(
(sfx, i) => fetch(`/scp-series${sfx}`)
.then(rsp => rsp.text())
.then(text => {
return Array.from((new DOMParser().parseFromString(text, 'text/html')).querySelectorAll('.series:first-of-type > ul'))
.slice(1)
.flatMap((ul, iUL) => Array.from(ul.querySelectorAll('li'))
.map((li, iLI) => {
const a = li.querySelector('a') // a.parentElement.removeChild(a)
const m = re.exec(li.textContent.slice(a.textContent.length))
if (m == null) {
console.warn(`${i * 1000 + iUL * 100 + iLI}: ${li.innerHTML}`)
return [a.pathname, a.textContent] // .innerText misses invisible text
} else {
return [a.pathname, m[1]]
}
})
)
})
)
return Promise.all(reqs).then(series => Object.fromEntries(series.flat()))
}
/** Dict<path, name> -> () */
function tipLinks (names) {
for (const link of window.document.querySelectorAll('a:not([title])')) {
const name = names[link.pathname]
if (name != undefined) {
link.title = name
}
}
}
function updateAndTip () {
updateNames().then(names => {
GM.setValue('names', JSON.stringify(names)).then(
_ => GM.setValue('lastupdate', Date.now())
).finally(tipLinks(names))
})
}
const DAYMS = 86400000
window.addEventListener('load', function() {
GM.getValue('lastupdate', 0).then(
lastupdate => {
if (lastupdate < Date.now() - DAYMS * 7) {
updateAndTip()
} else {
GM.getValue('names').then(
names => tipLinks(JSON.parse(names)),
error => GM.setValue('lastupdate', 0).then(_ => updateAndTip())
)
}
}) // else catastrophic failure…
})