'use strict'

const electron = require('electron')
const { Menu, MenuItem, ipcMain, BrowserWindow, app } = electron
const fs = require('fs')
const os = require('os')
const winston = require('winston')
const moment = require('moment')
const uuid = require('uuid')
const events = require('events')
const async = require('async')
const path = require('path')
const ee = new events.EventEmitter()
const capture = require('./lib/capture')(ee)
const settings = require('./lib/settings')

const Server = require('./lib/server')
const Intval = require('./lib/intval')

const mcopy = {}

let mainWindow
let mscript
let arduino
let intval
let projector
let camera
let server
let menu
let log = {}

//console.log(process.version)

mcopy.cfg = require('./data/cfg.json')
mcopy.settings = {}

var enumerateDevices = function (err, devices) {
	if (err) {
		log.info(err, 'SERIAL', false, true)
		setTimeout(() =>{
			distinguishDevices([])
		}, 1000)
	} else {
		log.info('Found ' + devices.length + ' USB devices', 'SERIAL', true, true)
		distinguishDevices(devices)
	}
}

var distinguishDevice = function (device, callback) {
	var connectCb = function (err, device) {
		if (err) {
			return console.error(err)
		}
		setTimeout(function () {
			arduino.verify(verifyCb)
		}, 2000);
	},
	verifyCb = function (err, success) {
		if (err) {
			return console.error(err)
		}
		log.info(`Verified ${device} as mcopy device`, 'SERIAL', true, true)

		setTimeout(function () {
			arduino.distinguish(distinguishCb);
		}, 1000);
	},
	distinguishCb = function (err, type) {
		if (err) {
			return console.error(err)
		}
		rememberDevice(device, type)

		log.info(`Determined ${device} to be ${type}`, 'SERIAL', true, true)
		if (callback) { callback(err, type); }
	}
	arduino.connect('connect', device, true, connectCb)
};

//Cases for 1 or 2 arduinos connected
var distinguishDevices = function (devices) {
	const connected = {
		projector : false,
		camera : false,
		light : false
	}

	let checklist = []
	var fakeProjector = function () {
		connected.projector = '/dev/fake'
		arduino.fakeConnect('projector', () => {
			log.info('Connected to fake PROJECTOR device', 'SERIAL', true, true)
			
		})
	}
	var fakeCamera = function () {
		connected.camera = '/dev/fake'
		arduino.fakeConnect('camera', () => {
			log.info('Connected to fake CAMERA device', 'SERIAL', true, true)
		})
	}
	var fakeLight = function () {
		connected.light = '/dev/fake'
		arduino.fakeConnect('light', () => {
			log.info('Connected to fake LIGHT device', 'SERIAL', true, true)
			
		})
	}
	var distinguishCb = function (device, type, cb) {
		arduino.close(() => {
			if (type === 'projector') {
				connected.projector = device
				arduino.connect('projector', device, false, () => {
					log.info(`Connected to ${device} as PROJECTOR`, 'SERIAL', true, true)
					cb()
				})
			} else if (type === 'camera') {
				connected.camera = device
				arduino.connect('camera', device, false, () => {
					log.info(`Connected to ${device} as CAMERA`, 'SERIAL', true, true)
					cb()
				})
			} else if (type === 'light') {
				connected.light = device
				arduino.connect('light', device, false, () => {
					log.info(`Connected to ${device} as LIGHT`, 'SERIAL', true, true)
					cb()
				})
			} else if (type === 'projector,light') {
				connected.projector = device
				connected.light = device
				arduino.connect('projector', device, false, () => {
					log.info(`Connected to ${device} as PROJECTOR + LIGHT`, 'SERIAL', true, true)
					cb()
				})
				arduino.alias('light', device)
			} else if (type === 'projector,camera,light') {
				connected.projector = device
				connected.camera = device
				connected.light = device
				arduino.connect('projector', device, false, () => {
					log.info(`Connected to ${device} as PROJECTOR + CAMERA + LIGHT`, 'SERIAL', true, true)
					cb()
				})
				arduino.alias('camera', device)
				arduino.alias('light', device)
			} else if (type === 'projector,camera') {
				connected.projector = device
				connected.camera = device
				arduino.connect('projector', device, false, () => {
					log.info(`Connected to ${device} as PROJECTOR`, 'SERIAL', true, true)
					cb()
				})
				arduino.alias('camera', device)
			} else {
				cb()
			}
		})
	}
	console.dir(mcopy.settings)
	console.dir(checklist)

	checklist = devices.map(device => {
		return next => {
			distinguishDevice(device, (err, type) => {
				if (err) {
					console.error(err)
					return next()
				}
				distinguishCb(device, type, next)
			})
		}
	})
	async.series(checklist, () => {
		//done checking devices
		if (!connected.projector) {
			fakeProjector()
		}
		if (!connected.camera) {
			fakeCamera()
		}
		if (!connected.light) {
			fakeLight()
		}
		devicesReady(connected.projector, connected.camera, connected.light)
	})
};

var rememberDevice = function (device, type) {
	let deviceEntry
	let match = mcopy.settings.devices.filter(dev => {
		if (dev.arduino && dev.arduino === device) {
			return dev
		}
	})
	if (match.length === 0) {
		deviceEntry = {
			arduino : device,
			type : type
		}
		mcopy.settings.devices.push(deviceEntry)
		settings.update('devices', mcopy.settings.devices)
		settings.save()
	}
}

var devicesReady = function (projector, camera, light) {
	mainWindow.webContents.send('ready', {camera: camera, projector: projector, light: light })
	settings.update('camera', { arduino : camera })
	settings.update('projector', { arduino : projector })
	settings.update('light', { arduino : light })
	settings.save()
};

var createMenu = function () {
	const template = require('./data/menu.json')
	menu = Menu.buildFromTemplate(template)
	Menu.setApplicationMenu(menu)
}

var createWindow = function () {
	mainWindow = new BrowserWindow({
		width: 800, 
		height: 600,
		minWidth : 800,
		minHeight : 600
	})
	mainWindow.loadURL('file://' + __dirname + '/index.html')
	//mainWindow.webContents.openDevTools()
	mainWindow.on('closed', () => {
		mainWindow = null
	})
}

var light = {}
light.init = function () {
	light.listen()
};
light.listen = function () {
	ipcMain.on('light', (event, arg) => {
		light.set(arg.rgb, arg.id)
		event.returnValue = true
	})
};
light.set = function (rgb, id) {
	var str = rgb.join(',');
	arduino.send('light', mcopy.cfg.arduino.cmd.light, (ms) => {
		light.end(rgb, id, ms)
	})
	arduino.string('light', str)
};
light.end = function (rgb, id, ms) {
	log.info('Light set to ' + rgb.join(','), 'LIGHT', true, true)
	mainWindow.webContents.send('light', {rgb: rgb, id : id, ms: ms})
};

var proj = {}
proj.state = {
	dir : true //default dir
};
proj.init = function () {
	proj.listen()
}
proj.set = function (dir, id) {
	var cmd
	if (dir) {
		cmd = mcopy.cfg.arduino.cmd.proj_forward
	} else {
		cmd = mcopy.cfg.arduino.cmd.proj_backward
	}
	proj.state.dir = dir
	arduino.send('projector', cmd, (ms) => {
		proj.end(cmd, id, ms)
	})
}
proj.move = function (frame, id) {
	arduino.send('projector', mcopy.cfg.arduino.cmd.projector, (ms) => {
		proj.end(mcopy.cfg.arduino.cmd.projector, id, ms)
	})
}
proj.listen = function () {
	ipcMain.on('proj', (event, arg) => {
		if (typeof arg.dir !== 'undefined') {
			proj.set(arg.dir, arg.id)
		} else if (typeof arg.frame !== 'undefined') {
			proj.move(arg.frame, arg.id)
		}
		event.returnValue = true
	})
}
proj.end = function (cmd, id, ms) {
	var message = ''
	if (cmd === mcopy.cfg.arduino.cmd.proj_forward) {
		message = 'Projector set to FORWARD'
	} else if (cmd === mcopy.cfg.arduino.cmd.proj_backward) {
		message = 'Projector set to BACKWARD'
	} else if (cmd === mcopy.cfg.arduino.cmd.projector) {
		message = 'Projector '
		if (proj.state.dir) {
			message += 'ADVANCED'
		} else {
			message += 'REWOUND'
		}
		message += ' 1 frame'
	}
	log.info(message, 'PROJECTOR', true, true)
	mainWindow.webContents.send('proj', {cmd: cmd, id : id, ms: ms})
}

var cam = {}
cam.state = {
	dir : true //default dir
}
cam.init = function () {
	cam.listen()
}
cam.set = function (dir, id) {
	let cmd
	if (dir) {
		cmd = mcopy.cfg.arduino.cmd.cam_forward
	} else {
		cmd = mcopy.cfg.arduino.cmd.cam_backward
	}
	cam.state.dir = dir
	arduino.send('camera', cmd, (ms) => {
		cam.end(cmd, id, ms)
	})
	/*
	intval.setDir('camera', dir, (ms) => {
		cam.end(cmd, id, ms)
	})
	*/
}

cam.move = function (frame, id) {
	let cmd = mcopy.cfg.arduino.cmd.camera
	arduino.send('camera', cmd, (ms) => {
		cam.end(cmd, id, ms)
	})
	/*
	intval.move('camera', (ms) => {
		cam.end(cmd, id, ms)
	})
	*/
}

cam.exposure = function (exposure, id) {
	intval.setDir('camera', exposure, (ms) => {
		cam.end(cmd, id, ms)
	})
}

cam.listen = function () {
	ipcMain.on('cam', (event, arg) => {
		if (typeof arg.dir !== 'undefined') {
			cam.set(arg.dir, arg.id)
		} else if (typeof arg.frame !== 'undefined') {
			cam.move(arg.frame, arg.id)
		}
		event.returnValue = true
	});
};
cam.end = function (cmd, id, ms) {
	var message = ''
	if (cmd === mcopy.cfg.arduino.cmd.cam_forward) {
		message = 'Camera set to FORWARD'
	} else if (cmd === mcopy.cfg.arduino.cmd.cam_backward) {
		message = 'Camera set to BACKWARD'
	} else if (cmd === mcopy.cfg.arduino.cmd.camera) {
		message = 'Camera '
		if (cam.state.dir) {
			message += 'ADVANCED'
		} else {
			message += 'REWOUND'
		}
		message += ' 1 frame'
	}
	log.info(message, 'CAMERA', true, true)
	mainWindow.webContents.send('cam', {cmd: cmd, id : id, ms: ms})
};

log.file = function () {
	let logPath = path.join(os.homedir(), `/.config/mcopy/`)
	if (process.platform === 'darwin') {
		logPath = path.join(os.homedir(), `/Library/Logs/mcopy/`)
	} else if (process.platform === 'win32') {
		logPath = path.join(os.homedir(), `/AppData/Roaming/mcopy/`)
	}
	if (!fs.existsSync(logPath)) {
		fs.mkdirSync(logPath)
	}
	return path.join(logPath, 'mcopy.log')
}
log.time = 'MM/DD/YY-HH:mm:ss'
log.transport = new (winston.Logger)({
	transports: [
		new (winston.transports.Console)(),
		new (winston.transports.File)({ filename: log.file() })
	]
})
log.init = function () {
	log.listen()
}
log.display = function (obj) {
	mainWindow.webContents.send('log', obj)
}
log.listen = function () {
	ipcMain.on('log', (event, arg) => {
		log.transport.info('renderer', arg)
		event.returnValue = true
	})
}
log.info = function (action, service, status, display) {
	var obj = {
		time : moment().format(log.time),
		action : action,
		service : service,
		status : status
	}
	log.transport.info('main', obj)
	if (display) {
		log.display(obj)
	}
}

var transfer = {}

transfer.init = function () {
	transfer.listen()
};
transfer.listen = function () {
	ipcMain.on('transfer', (event, arg) => {
		var res = '';
		//also turn on and off
		if (arg.action === 'enable') {
			capture.active = true
			res = capture.active
		} else if (arg.action === 'disable') {
			capture.active = false
			res = capture.active
		} else if (arg.action === 'start') {
			capture.start()
		} else if (arg.action === 'end') {
			res = capture.end()
		}
		event.returnValue = res
	})
}

var init = function () {

	createWindow()
	//createMenu()
	log.init()
	light.init()
	proj.init()
	cam.init()

	//transfer.init()
	//capture.init()

	arduino = require('./lib/arduino')(mcopy.cfg, ee)
	mscript = require('./lib/mscript')
	

	settings.restore()
	mcopy.settings = settings.all()

	setTimeout( () => {
		arduino.enumerate(enumerateDevices)
	}, 1000)
}

app.on('ready', init)

app.on('window-all-closed', () => {
	//if (process.platform !== 'darwin') {
		app.quit();
	//}
});

app.on('activate', () => {
	if (mainWindow === null) {
		createWindow();
	}
});