From 1174281ed9b581c841840a50a2c13c58a0f5f375 Mon Sep 17 00:00:00 2001
From: Holly Stubbs <holly@eusv.net>
Date: Wed, 10 Apr 2024 17:00:37 +0100
Subject: [PATCH] Create exporter.js

---
 exporter.js | 133 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 exporter.js

diff --git a/exporter.js b/exporter.js
new file mode 100644
index 0000000..48d3bc2
--- /dev/null
+++ b/exporter.js
@@ -0,0 +1,133 @@
+#!/bin/node
+
+// Add your details here
+const SERVER_ADDRESS = "https://jellyfin.example.com"; // Don't leave a trailing slash!!!
+const API_KEY = ""; // Get this from Administration > API Keys
+const USER_NAME = "user";
+const LIBRARY_NAME = "Music";
+
+if (SERVER_ADDRESS.includes("example") || API_KEY.trim() === "" || USER_NAME.trim() === "" || LIBRARY_NAME.trim() === "") {
+	console.log("Details are invalid, check the details at the top of this script file! (Lines 3 - 7)");
+	return;
+}
+
+const fs = require("fs");
+let outText = "";
+let albumCount = 0;
+let songCount = 0;
+
+class StrippedFunkyArray {
+	constructor() {
+		this.items = {};
+		this.itemKeys = [];
+		this.undefIndex = 9999;
+	}
+
+	set(key, item, regenerate = true) {
+		this.items[key] = item;
+		if (regenerate) {
+			this.itemKeys = Object.keys(this.items);
+		}
+		return item;
+	}
+
+	get(key) {
+		return this.items[key];
+	}
+}
+
+async function apiRequest(url) {
+	const res = await fetch(`${SERVER_ADDRESS}/${url}`, {
+		headers: {
+			Authorization: `Mediabrowser Token="${API_KEY}"`
+		}
+	});
+
+	return await res.json();
+}
+
+function getLargestFromNumericKey(keys) {
+	let largest = 0;
+	let next = 0;
+	for (const key of keys) {
+		next = parseInt(key);
+		if (next > largest) {
+			largest = next;
+		}
+	}
+
+	return largest + 1;
+}
+
+console.log("=============================================")
+console.log("@ Holly's Jellyfin Library Expoter for VotV @");
+console.log("@ It shouldn't have been this hard :(       @");
+console.log("=============================================\n");
+(async () => {
+	console.log("Fetching users...");
+	const users = await apiRequest("Users");
+	let userId = "";
+	for (const user of users) {
+		if (user.Name === USER_NAME) {
+			userId = user.Id;
+			break;
+		}
+	}
+	if (userId === "") {
+		console.log(`Could not find user "${USER_NAME}" on the server.`);
+		return;
+	}
+	console.log(`Found user "${USER_NAME}", ID = ${userId}.`);
+
+	console.log(`Fetching Libraries for ${userId}...`);
+	const libraries = await apiRequest(`Items?userId=${userId}`);
+	let libraryId = "";
+	for (const library of libraries.Items) {
+		if (library.Type !== "CollectionFolder") {
+			continue;
+		}
+
+		if (library.Name === LIBRARY_NAME) {
+			libraryId = library.Id;
+		}
+	}
+	if (libraryId === "") {
+		console.log(`Could not find library "${LIBRARY_NAME}" for user ${userId} on the server.`)
+	}
+	console.log(`Found library "${LIBRARY_NAME}", ID = ${libraryId}`);
+
+	console.log("Fetching library media...");
+	const media = await apiRequest(`Items?userId=${userId}&recursive=true&parentId=${libraryId}`);
+
+	console.log("Exporting...");
+	const groupedSongs = new StrippedFunkyArray();
+	for (const item of media.Items) {
+		if (item.Type !== "Audio") {
+			if (item.Type === "MusicAlbum") {
+				albumCount++;
+			}
+			continue;
+		}
+
+		let albumArray = groupedSongs.get(item.AlbumId);
+		if (albumArray == null) {
+			albumArray = groupedSongs.set(item.AlbumId, new StrippedFunkyArray());
+		}
+		albumArray.set(item.IndexNumber ?? albumArray.undefIndex++, item);
+	}
+
+	for (const albumArrayKey of groupedSongs.itemKeys) {
+		const albumArray = groupedSongs.get(albumArrayKey);
+		const largestIndexNumber = getLargestFromNumericKey(albumArray.itemKeys);
+		for (let i = 1; i < largestIndexNumber; i++) {
+			if (albumArray.items[i] != null) {
+				const item = albumArray.items[i];
+				outText += `${outText.length === 0 ? "" : "\n"}${item.Name} - ${item.Album ?? item.AlbumArtist}\n${SERVER_ADDRESS}/Items/${item.Id}/Download?api_key=${API_KEY}`;
+				songCount++;
+			}
+		}
+	}
+
+	fs.writeFileSync("online.txt", outText);
+	console.log(`Exported ${songCount} songs from ${albumCount} albums to online.txt`);
+})();
\ No newline at end of file