var dirname = __dirname
var dir = 'file://' + __dirname
var base = dir + '/view/'
// Electronのモジュール
const electron = require('electron')
const fs = require('fs')
const language = require('./main/language.js')
const css = require('./main/css.js')
const dl = require('./main/dl.js')
const img = require('./main/img.js')
const np = require('./main/np.js')
const systemFunc = require('./main/system.js')
const Menu = electron.Menu
const join = require('path').join

// アプリケーションをコントロールするモジュール
const app = electron.app
// ウィンドウを作成するモジュール
const BrowserWindow = electron.BrowserWindow
// メインウィンドウはGCされないようにグローバル宣言
let mainWindow

// アプリが多重起動しないようにする
const gotTheLock = app.requestSingleInstanceLock()

if (!gotTheLock) {
	app.quit()
} else {
	app.on('second-instance', () => {
		// 多重起動を試みた場合、既に存在するウィンドウにフォーカスを移す
		// Someone tried to run a second instance, we should focus our window.
		if (mainWindow) {
			if (mainWindow.isMinimized()) mainWindow.restore()
			mainWindow.focus()
		}
	})
}

if (process.argv.indexOf('--dev') === -1) {
	var packaged = true
} else {
	var packaged = false
	console.log(
		'||\\\\\\ \n' +
			'||||  \\\\\\\\ \n' +
			'||||     \\\\\\\\ \n' +
			'|||| Am I a \\\\\\\\ \n' +
			'|||| cat? ^ ^   \\\\\\\\\\       _____ _          ____            _    \n' +
			'||||     (.-.)   \\\\\\\\\\      |_   _| |__   ___|  _ \\  ___  ___| | __\n' +
			"||||  ___>   )    |||||       | | | '_ \\ / _ \\ | | |/ _ \\/ __| |/ /\n" +
			'|||| <   _  _)   //////       | | | | | |  __/ |_| |  __/__ \\   < \n' +
			'||||  |_||_|   /////          |_| |_| |_|\\___|____/ \\___||___/_|\\_\\ \n' +
			'||||          /////         \n' +
			'||||       /////\n' +
			'||||     /////\n' +
			'||||//////'
	)
	console.log('If it does not show the window, you might forget `npm run construct`.')
}
var info_path = join(app.getPath('userData'), 'window-size.json')
var max_info_path = join(app.getPath('userData'), 'max-window-size.json')
var lang_path = join(app.getPath('userData'), 'language')
var ha_path = join(app.getPath('userData'), 'hardwareAcceleration')
var ua_path = join(app.getPath('userData'), 'useragent')
try {
	fs.readFileSync(ha_path, 'utf8')
	app.disableHardwareAcceleration()
	if (!packaged) console.log('disabled: Hardware Acceleration')
} catch {
	if (!packaged) console.log('enabled: Hardware Acceleration')
}
var window_size
try {
	window_size = JSON.parse(fs.readFileSync(info_path, 'utf8'))
} catch (e) {
	window_size = {
		width: 1000,
		height: 750
	} // デフォルトバリュー
}
var max_window_size
try {
	max_window_size = JSON.parse(fs.readFileSync(max_info_path, 'utf8'))
} catch (e) {
	max_window_size = {
		width: 'string',
		height: 'string',
		x: 'string',
		y: 'string'
	} // デフォルトバリュー
}
function isFile(file) {
	try {
		fs.statSync(file)
		return true
	} catch (err) {
		if (err.code === 'ENOENT') return false
	}
}
// 全てのウィンドウが閉じたら終了
app.on('window-all-closed', function() {
	electron.session.defaultSession.clearCache(() => {})
	app.quit()
})
function createWindow() {
	if (isFile(lang_path)) {
		var lang = fs.readFileSync(lang_path, 'utf8')
	} else {
		var langs = app.getLocale()
		console.log(langs)
		if (~langs.indexOf('ja')) {
			lang = 'ja'
		} else if (~langs.indexOf('de')) {
			lang = 'de'
		} else if (~langs.indexOf('cs')) {
			lang = 'cs'
		} else if (~langs.indexOf('bg')) {
			lang = 'bg'
		} else {
			lang = 'en'
		}
		fs.mkdir(app.getPath('userData'), function(err) {
			fs.writeFileSync(lang_path, lang)
		})
	}
	if (!packaged) console.log('your lang:' + app.getLocale())
	if (!packaged) console.log('launch:' + lang)
	// メイン画面の表示。ウィンドウの幅、高さを指定できる
	var platform = process.platform
	var bit = process.arch
	if (platform == 'linux') {
		var arg = {
			webPreferences: {
				webviewTag: true,
				nodeIntegration: false,
				contextIsolation: true,
				preload: join(__dirname, 'js', 'platform', 'preload.js')
			},
			width: window_size.width,
			height: window_size.height,
			x: window_size.x,
			y: window_size.y,
			icon: __dirname + '/desk.png',
			show: false,
			frame: false,
			resizable: true
		}
	} else if (platform == 'win32') {
		var arg = {
			webPreferences: {
				webviewTag: true,
				nodeIntegration: false,
				contextIsolation: true,
				preload: join(__dirname, 'js', 'platform', 'preload.js')
			},
			width: window_size.width,
			height: window_size.height,
			x: window_size.x,
			y: window_size.y,
			simpleFullscreen: true,
			show: false
		}
	} else if (platform == 'darwin') {
		var arg = {
			webPreferences: {
				webviewTag: true,
				nodeIntegration: false,
				contextIsolation: true,
				preload: join(__dirname, 'js', 'platform', 'preload.js')
			},
			width: window_size.width,
			height: window_size.height,
			x: window_size.x,
			y: window_size.y,
			simpleFullscreen: true,
			show: false
		}
	}
	mainWindow = new BrowserWindow(arg)
	mainWindow.once('page-title-updated', () => {
		mainWindow.show()
		if (window_size.max) {
			mainWindow.maximize()
		}
	})
	if (!packaged) mainWindow.toggleDevTools()
	electron.session.defaultSession.clearCache(() => {})
	if (process.argv) {
		if (process.argv[1]) {
			var m = process.argv[1].match(/([a-zA-Z0-9]+)\/\?[a-zA-Z-0-9]+=(.+)/)
			if (m) {
				var mode = m[1]
				var code = m[2]
				var plus = '?mode=' + mode + '&code=' + code
			} else {
				var plus = ''
			}
		} else {
			var plus = ''
		}
	} else {
		var plus = ''
	}
	var ua
	try {
		ua = fs.readFileSync(ua_path, 'utf8')
	} catch (e) {
		//default UA Example:
		// Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) thedesk/18.11.3 Chrome/76.0.3809.146 Electron/6.0.12 Safari/537.36
		const crypto = require('crypto')
		const N = 100
		var ua =
			'Mastodon client: ' +
			crypto
				.randomBytes(N)
				.toString('base64')
				.substring(0, N)
	}
	mainWindow.loadURL(base + lang + '/index.html' + plus, { userAgent: ua })
	if (!window_size.x && !window_size.y) {
		mainWindow.center()
	}
	// ウィンドウが閉じられたらアプリも終了
	mainWindow.on('closed', function() {
		electron.ipcMain.removeAllListeners()
		mainWindow = null
	})
	closeArg = false
	mainWindow.on('close', function(e, arg) {
		writePos(mainWindow)
		if (!closeArg) {
			e.preventDefault()
		}
		const promise = new Promise(function(resolve) {
			mainWindow.webContents.send('asReadEnd', '')
			setTimeout(function() {
				resolve()
			}, 3000)
		})
		promise.then(function(response) {
			closeArg = true
			mainWindow.close()
		})
	})
	electron.ipcMain.on('sendMarkersComplete', function(e, arg) {
		closeArg = true
		mainWindow.close()
	})
	function writePos(mainWindow) {
		if (
			max_window_size.width == mainWindow.getBounds().width &&
			max_window_size.height == mainWindow.getBounds().height &&
			max_window_size.x == mainWindow.getBounds().x &&
			max_window_size.y == mainWindow.getBounds().y
		) {
			var size = {
				width: mainWindow.getBounds().width,
				height: mainWindow.getBounds().height,
				x: mainWindow.getBounds().x,
				y: mainWindow.getBounds().y,
				max: true
			}
		} else {
			var size = {
				width: mainWindow.getBounds().width,
				height: mainWindow.getBounds().height,
				x: mainWindow.getBounds().x,
				y: mainWindow.getBounds().y
			}
		}
		fs.writeFileSync(info_path, JSON.stringify(size))
	}
	mainWindow.on('maximize', function() {
		writePos(mainWindow)
		fs.writeFileSync(max_info_path, JSON.stringify(mainWindow.getBounds()))
	})
	mainWindow.on('minimize', function() {
		writePos(mainWindow)
		mainWindow.webContents.send('asRead', '')
	})

	var platform = process.platform
	var bit = process.arch
	Menu.setApplicationMenu(
		Menu.buildFromTemplate(language.template(lang, mainWindow, packaged, dir, dirname))
	)
	mainWindow.setMenu(null)
	//CSS
	css.css(mainWindow)
	//アップデータとダウンロード
	dl.dl(mainWindow, lang_path, base, dirname)
	//画像選択と画像処理
	img.img(mainWindow, dir)
	//NowPlaying
	np.TheDeskNowPlaying(mainWindow)
	//その他system
	systemFunc.system(mainWindow, dir, lang, dirname)
	setInterval(function() {
		mouseTrack(mainWindow)
	}, 1000)
}
var x = 0
var y = 0
var unchanged = 0
var locked = false
function mouseTrack(mainWindow) {
	let mousePos = electron.screen.getCursorScreenPoint()
	let xNow = mousePos.x
	let yNow = mousePos.x
	if (x != xNow || y != yNow) {
		unchanged = 0
		locked = false
	} else {
		unchanged++
		if (unchanged > 60 && !locked) {
			unchanged = 0
			locked = true
			mainWindow.webContents.send('asRead', '')
		}
	}
	x = xNow
	y = yNow
}
// Electronの初期化完了後に実行
app.on('ready', createWindow)
var onError = function(err, response) {
	console.error(err, response)
}

app.setAsDefaultProtocolClient('thedesk')