Files
youtube-music/plugins/lyrics-genius/back.js
2023-03-18 13:15:25 -05:00

117 lines
3.4 KiB
JavaScript

const { join } = require("path");
const { ipcMain } = require("electron");
const is = require("electron-is");
const { convert } = require("html-to-text");
const fetch = require("node-fetch");
const { cleanupName } = require("../../providers/song-info");
const { injectCSS } = require("../utils");
let eastAsianChars = /\p{Script=Han}|\p{Script=Katakana}|\p{Script=Hiragana}|\p{Script=Hangul}|\p{Script=Han}/u;
let revRomanized = false;
module.exports = async (win, options) => {
if(options.romanizedLyrics) {
revRomanized = true;
}
injectCSS(win.webContents, join(__dirname, "style.css"));
ipcMain.on("search-genius-lyrics", async (event, extractedSongInfo) => {
const metadata = JSON.parse(extractedSongInfo);
event.returnValue = await fetchFromGenius(metadata);
});
};
const toggleRomanized = () => {
revRomanized = !revRomanized;
};
const fetchFromGenius = async (metadata) => {
const songTitle = `${cleanupName(metadata.title)}`;
const songArtist = `${cleanupName(metadata.artist)}`;
let lyrics;
/* Uses Regex to test the title and artist first for said characters if romanization is enabled. Otherwise normal
Genius Lyrics behavior is observed.
*/
let hasAsianChars = false;
if (revRomanized && (eastAsianChars.test(songTitle) || eastAsianChars.test(songArtist))) {
lyrics = await getLyricsList(`${songArtist} ${songTitle} Romanized`);
hasAsianChars = true;
} else {
lyrics = await getLyricsList(`${songArtist} ${songTitle}`);
}
/* If the romanization toggle is on, and we did not detect any characters in the title or artist, we do a check
for characters in the lyrics themselves. If this check proves true, we search for Romanized lyrics.
*/
if(revRomanized && !hasAsianChars && eastAsianChars.test(lyrics)) {
lyrics = await getLyricsList(`${songArtist} ${songTitle} Romanized`);
}
return lyrics;
};
/**
* Fetches a JSON of songs which is then parsed and passed into getLyrics to get the lyrical content of the first song
* @param {*} queryString
* @returns The lyrics of the first song found using the Genius-Lyrics API
*/
const getLyricsList = async (queryString) => {
let response = await fetch(
`https://genius.com/api/search/multi?per_page=5&q=${encodeURIComponent(queryString)}`
);
if (!response.ok) {
return null;
}
/* Fetch the first URL with the api, giving a collection of song results.
Pick the first song, parsing the json given by the API.
*/
const info = await response.json();
let url = "";
try {
url = info.response.sections.filter((section) => section.type === "song")[0]
.hits[0].result.url;
} catch {
return null;
}
let lyrics = await getLyrics(url);
return lyrics;
}
/**
*
* @param {*} url
* @returns The lyrics of the song URL provided, null if none
*/
const getLyrics = async (url) => {
response = await fetch(url);
if (!response.ok) {
return null;
}
if (is.dev()) {
console.log("Fetching lyrics from Genius:", url);
}
const html = await response.text();
const lyrics = convert(html, {
baseElements: {
selectors: ['[class^="Lyrics__Container"]', ".lyrics"],
},
selectors: [
{
selector: "a",
format: "linkFormatter",
},
],
formatters: {
// Remove links by keeping only the content
linkFormatter: (elem, walk, builder) => {
walk(elem.children, builder);
},
},
});
return lyrics;
};
module.exports.toggleRomanized = toggleRomanized;
module.exports.fetchFromGenius = fetchFromGenius;