"use strict";

const {app, BrowserWindow, ipcMain, globalShortcut} = require("electron");
const path                                          = require("path");

const {isDevelopment} = require("./Util");

class WindowManager {
	mainWindow;
	windows;

	constructor(parent) {
		this.app        = parent;
		this.mainWindow = null;
		this.windows    = {};

		app.whenReady().then(() => this.init());

		ipcMain.on("WindowManager::openFileDialog", () => this.app.openFile());
		ipcMain.on("WindowManager::openFile", (_, path) => this.app.openFile(path));
		ipcMain.handle("WindowManager::resize", (_, height) => this.windows.settings.setSize(800, height + (process.platform === "win32" ? 50 : 0), true));
		ipcMain.handle("WindowManager::presentFullscreen", (_, fullscreen) => this.windows.main.setFullScreen(fullscreen));
	}

	init() {
		this.mainWindow = WindowManager._CreateWindow({
			fullscreen      : false,
			fullscreenable  : true
		});
		this.windows.settings = WindowManager._CreateWindow({
			height         : 300,
			resizable      : false,
			fullscreenable : false,
			parent         : this.mainWindow,
			show           : false
		}, this.mainWindow, false);

		// on windows and linux we need to hide the main menu in the settings
		// window, because it would look odd.
		if (["win32", "linux"].includes(process.platform)) {
			this.windows.settings.removeMenu();
		
		}

		this.windows.settings.on("close", event => {
			event.preventDefault();
			this.windows.settings.hide();
		});

		if (isDevelopment()) {
			globalShortcut.register("CommandOrControl+I", () => {
				this.mainWindow.toggleDevTools();
				this.windows.settings.toggleDevTools();
			});
			globalShortcut.register("CommandOrControl+R", () => {
				this.mainWindow.reload();
			});
		}

		if (isDevelopment()) {
			this.mainWindow.loadURL("http://localhost:3000");
			this.windows.settings.loadURL("http://localhost:3000/#/settings");
		}
		else {
			this.mainWindow.loadURL(`file://${__dirname}/ui/build/index.html`);
			this.windows.settings.loadURL(`file://${__dirname}/ui/build/index.html#/settings`);
		}
	}

	static _CreateWindow(options = null, parent = null, show = true) {
		const windowOptions = {
			width          : 800,
			height         : 600,
			show           : false,
			devTools       : isDevelopment(),
			titleBarStyle  : "hiddenInset",
			autoHideMenuBar : process.platform === "win32",
			webPreferences : {
				contextIsolation : true,
				preload          : path.join(__dirname, "..", "contextAPI.js")
			},
			parent,
			...options
		};
		if (!parent)
			delete windowOptions.parent;
		const window = new BrowserWindow(windowOptions);
		if (show)
			window.once("ready-to-show", () => window.show());	

		return window;
	}
}

module.exports = WindowManager;