const path = require("node:path");
const fs = require("node:fs");
const os = require("node:os");

const electron = require("electron");

const downloader = require("./lib/downloader.js");
const checker = require("./lib/checker.js");

let meta = JSON.parse(fs.readFileSync(path.join(__dirname, "meta.json"), "utf-8"));
let sources = JSON.parse(fs.readFileSync(path.join(__dirname, "sources.json"), "utf-8"));

let osPlatform = os.platform();
let userHome = os.homedir();

let gameDirectory;
switch (osPlatform) {
	case "win32":
		gameDirectory = path.join(userHome, "AppData", "Roaming", ...(meta["install_directory"]).split("/"));
		break;
	case "darwin":
		gameDirectory = path.join(userHome, "Library", "Application Support", ...(meta["install_directory"]).split("/"));
		break;
	case "linux":
		gameDirectory = path.join(userHome, ...(meta["install_directory"]).split("/"));
		break;
	default:
		gameDirectory = path.join(userHome, ...(meta["install_directory"]).split("/"));
		break;
}

let window;

function showProgress(progress, ongoing, remaining, total) {
	window.setProgressBar(progress);

	window.webContents.send("event", {
		"type": "download-progress",
		"data": {
			"ongoing": ongoing,
			"remaining": remaining,
			"total": total
		}
	});
}

electron.app.on("ready", function () {
	window = new electron.BrowserWindow({
		"width": 960,
		"height": 560,
		"webPreferences": {
			"nodeIntegration": true,
			"contextIsolation": true,
			"preload": path.join(__dirname, "preload.js")
		},
		"title": "OpenModLauncher",
		"icon": path.join(__dirname, "res", "img", "logo.png"),
		"frame": false,
		"transparent": true,
		"resizable": false,
		"show": false
	});

	window.loadFile(path.join(__dirname, "views", "main.html"));

	window.on("ready-to-show", window.show);
});

electron.ipcMain.handle("minimize", function (event) {
	return window.minimize();
});

electron.ipcMain.handle("close", function (event) {
	return window.close();
});

electron.ipcMain.handle("is-installed", function (event) {
	return checker.check_install(gameDirectory);
});
electron.ipcMain.handle("install", function (event) {
	return downloader.download_minecraft(gameDirectory, meta["minecraft"], sources["minecraft"], showProgress);
});

electron.app.on("window-all-closed", function () {
	electron.app.quit();
});