package main

import (
	"flag"
	"fmt"
	"os"
	"strconv"
	"strings"
	"time"

	"github.com/bogosj/tesla"
	"github.com/therecipe/qt/widgets"
)

var (
	// Info/Statuses
	batteryLevel      *widgets.QLabel
	batteryRange      *widgets.QLabel
	chargingState     *widgets.QLabel
	minutesToFull     *widgets.QLabel
	fastChargerInd    *widgets.QLabel
	batteryHeaterInd  *widgets.QLabel
	chargeDoorOpenInd *widgets.QLabel
	insideTemp        *widgets.QLabel
	outsideTemp       *widgets.QLabel
	climateUnitLabel  *widgets.QLabel

	// Controls
	tempSetting     *widgets.QLineEdit
	climateOn       *widgets.QCheckBox
	lockedDoors     *widgets.QCheckBox
	sentryMode      *widgets.QCheckBox
	startStopCharge *widgets.QCheckBox

	honk        *widgets.QPushButton
	flashLights *widgets.QPushButton
	trunk       *widgets.QPushButton
	frunk       *widgets.QPushButton

	vehicle      *tesla.Vehicle
	vehicleState *tesla.VehicleState
	chargeStats  *tesla.ChargeState
	climateState *tesla.ClimateState
	guiSettings  *tesla.GuiSettings

	window        *widgets.QMainWindow
	mainApp       *widgets.QApplication
	vehicleSearch string
	refresh       bool
	popup         = false
)

func init() {
	flag.StringVar(&vehicleSearch, "v", "", "Vehicle Identifier")
	flag.BoolVar(&refresh, "r", false, "Auto-refresh (every minute)")
	flag.Parse()
}
func main() {
	mainApp = widgets.NewQApplication(len(os.Args), os.Args)
	window = widgets.NewQMainWindow(nil, 0)

	c := getTeslaClient()
	vehicles, err := c.Vehicles()
	if err != nil {
		showDialogue(false, "Unable to get vehicles.\n%+v", err)
		return
	}
	if len(vehicles) == 0 {
		showDialogue(false, "No vehicles to show.")
		return
	} else if len(vehicles) > 1 && vehicleSearch == "" {
		showDialogue(false, "Unable to determine vehicle.")
	}

	// Setup all UI Elements
	window.SetWindowTitle("Loading, please wait!")

	batteryLevel = widgets.NewQLabel(nil, 0)
	batteryRange = widgets.NewQLabel(nil, 0)
	chargingState = widgets.NewQLabel(nil, 0)
	minutesToFull = widgets.NewQLabel(nil, 0)
	fastChargerInd = widgets.NewQLabel(nil, 0)
	batteryHeaterInd = widgets.NewQLabel(nil, 0)
	chargeDoorOpenInd = widgets.NewQLabel(nil, 0)
	insideTemp = widgets.NewQLabel(nil, 0)
	outsideTemp = widgets.NewQLabel(nil, 0)
	currentChargeLabel := widgets.NewQLabel(nil, 0)
	currentRangeLabel := widgets.NewQLabel(nil, 0)
	insideTempLabel := widgets.NewQLabel(nil, 0)
	outsideTempLabel := widgets.NewQLabel(nil, 0)
	climateEnabledLabel := widgets.NewQLabel(nil, 0)
	climateSettingLabel := widgets.NewQLabel(nil, 0)
	doorLockLabel := widgets.NewQLabel(nil, 0)
	sentryModeLabel := widgets.NewQLabel(nil, 0)
	chargingStateLabel := widgets.NewQLabel(nil, 0)
	climateUnitLabel = widgets.NewQLabel(nil, 0)

	tempSetting = widgets.NewQLineEdit(nil)

	climateOn = widgets.NewQCheckBox(nil)
	lockedDoors = widgets.NewQCheckBox(nil)
	sentryMode = widgets.NewQCheckBox(nil)
	startStopCharge = widgets.NewQCheckBox(nil)

	honk = widgets.NewQPushButton(nil)
	flashLights = widgets.NewQPushButton(nil)
	trunk = widgets.NewQPushButton(nil)
	frunk = widgets.NewQPushButton(nil)

	statusLayout := widgets.NewQFormLayout(nil)
	chargeHbox := widgets.NewQHBoxLayout()
	tempHbox := widgets.NewQHBoxLayout()
	climateHbox := widgets.NewQHBoxLayout()
	securityHbox := widgets.NewQHBoxLayout()
	actionHbox := widgets.NewQHBoxLayout()

	centralWidget := widgets.NewQWidget(window, 0)

	// Set Values for everything
	go setValues()
	if refresh {
		go func() {
			time.Sleep(1 * time.Minute)
			setValues()
		}()
	}

	// Some adjustments

	lockedDoors.SetCheckable(false)
	climateOn.SetCheckable(false)
	tempSetting.SetReadOnly(true)

	batteryLevel.SetFixedWidth(30)
	insideTemp.SetFixedWidth(25)
	outsideTemp.SetFixedWidth(25)
	tempSetting.SetFixedWidth(25)

	currentChargeLabel.SetText("Current Charge:")
	currentRangeLabel.SetText("Current Range:")
	insideTempLabel.SetText("Inside Temp:")
	outsideTempLabel.SetText("Outside Temp:")
	climateEnabledLabel.SetText("Climate On:")
	climateSettingLabel.SetText("Climate Setting:")
	doorLockLabel.SetText("Lock Doors:")
	sentryModeLabel.SetText("Sentry Mode:")
	chargingStateLabel.SetText("Charging:")
	honk.SetText("Honk")
	flashLights.SetText("Flash")
	trunk.SetText("Trunk")
	frunk.SetText("Frunk")

	// Connect Controls
	honk.ConnectClicked(honkHorn)
	flashLights.ConnectClicked(flash)
	trunk.ConnectClicked(openTrunk)
	frunk.ConnectClicked(openFrunk)
	lockedDoors.ConnectStateChanged(lockDoors)
	sentryMode.ConnectStateChanged(sentryModeEnable)
	startStopCharge.ConnectStateChanged(enableCharging)
	climateOn.ConnectStateChanged(enableClimate)

	// Setup Layout for first row, Current Charge
	chargeHbox.AddWidget(batteryLevel, 0, 0)
	chargeHbox.AddItem(widgets.NewQSpacerItem(5, 2, widgets.QSizePolicy__Expanding, widgets.QSizePolicy__Expanding))
	chargeHbox.AddWidget(currentRangeLabel, 0, 0)
	chargeHbox.AddWidget(batteryRange, 0, 0)

	// Charging State has its own section and is handled differently based on if it is present or not
	if chargeStats != nil && chargeStats.ChargingState != "Disconnected" {
		statusLayout.AddRow3("Minutes to Full:", minutesToFull)
		if chargeStats.FastChargerPresent {
			statusLayout.AddRow3("Fast Charger:", fastChargerInd)
		}
		if chargeStats.BatteryHeaterOn {
			statusLayout.AddRow3("Battey Heater:", batteryHeaterInd)
		}
		statusLayout.AddRow3(" ", nil)
	}

	// Temperature section (NOT CLIMATE CONTROL)
	tempHbox.AddWidget(insideTemp, 0, 0)
	tempHbox.AddItem(widgets.NewQSpacerItem(10, 10, widgets.QSizePolicy__Fixed, widgets.QSizePolicy__Fixed))
	tempHbox.AddWidget(outsideTempLabel, 0, 0)
	tempHbox.AddWidget(outsideTemp, 0, 0)

	// Climate Control Section
	climateHbox.AddWidget(climateOn, 0, 0)
	climateHbox.AddItem(widgets.NewQSpacerItem(10, 10, widgets.QSizePolicy__Fixed, widgets.QSizePolicy__Fixed))
	climateHbox.AddWidget(climateSettingLabel, 0, 0)
	climateHbox.AddWidget(tempSetting, 0, 0)
	climateHbox.AddWidget(climateUnitLabel, 0, 0)

	// Security Section (Lock/Unlock doors & start/stop charge. Also enable Sentry Mode)
	securityHbox.AddWidget(lockedDoors, 0, 0)
	securityHbox.AddItem(widgets.NewQSpacerItem(10, 10, widgets.QSizePolicy__Fixed, widgets.QSizePolicy__Fixed))
	securityHbox.AddWidget(sentryModeLabel, 0, 0)
	securityHbox.AddWidget(sentryMode, 0, 0)
	if chargeStats != nil && chargeStats.ChargingState != "Disconnected" {
		securityHbox.AddItem(widgets.NewQSpacerItem(10, 10, widgets.QSizePolicy__Fixed, widgets.QSizePolicy__Fixed))
		securityHbox.AddWidget(chargingStateLabel, 0, 0)
		securityHbox.AddWidget(startStopCharge, 0, 0)
	}

	// Action Buttons
	actionHbox.AddWidget(honk, 0, 0)
	actionHbox.AddItem(widgets.NewQSpacerItem(2, 2, widgets.QSizePolicy__Fixed, widgets.QSizePolicy__Fixed))
	actionHbox.AddWidget(flashLights, 0, 0)
	actionHbox.AddItem(widgets.NewQSpacerItem(2, 2, widgets.QSizePolicy__Fixed, widgets.QSizePolicy__Fixed))
	actionHbox.AddWidget(trunk, 0, 0)
	actionHbox.AddItem(widgets.NewQSpacerItem(2, 2, widgets.QSizePolicy__Fixed, widgets.QSizePolicy__Fixed))
	actionHbox.AddWidget(frunk, 0, 0)
	actionHbox.AddItem(widgets.NewQSpacerItem(2, 2, widgets.QSizePolicy__Fixed, widgets.QSizePolicy__Fixed))

	// Put all Sections Together, note ChargingState (top) is already handled
	statusLayout.AddRow2(currentChargeLabel, chargeHbox)
	statusLayout.AddRow3("Charging State:", chargingState)
	statusLayout.AddRow3("Charge Port:", chargeDoorOpenInd)
	statusLayout.AddRow3(" ", nil)
	statusLayout.AddRow2(insideTempLabel, tempHbox)
	statusLayout.AddRow2(climateEnabledLabel, climateHbox)
	statusLayout.AddRow3(" ", nil)
	statusLayout.AddRow2(doorLockLabel, securityHbox)
	statusLayout.AddRow6(actionHbox)

	// Finish setting up the window, and let her go
	centralWidget.SetLayout(statusLayout)
	window.SetCentralWidget(centralWidget)
	if !popup {
		window.Show()
	}
	widgets.QApplication_Exec()
}

func setValues() {
	vehicle = getVehicle(vehicleSearch)
	var err error
	if vehicle == nil {
		showDialogue(false, "Unable to get vehicle")
		return
	}
	vehicleState, err = vehicle.VehicleState()
	if err != nil {
		showDialogue(false, "Unable to get Vehicle State")
	}
	chargeStats, err = vehicle.ChargeState()
	if err != nil {

		showDialogue(false, "Unable to get Vehicle Charge State")
	}
	climateState, err = vehicle.ClimateState()
	if err != nil {
		showDialogue(false, "Unable to get Vehicle Climate")
	}
	guiSettings, err = vehicle.GuiSettings()
	if err != nil {
		showDialogue(false, "Unable to get Gui Settings")
	}
	window.SetWindowTitle(fmt.Sprintf("%+v: %+v", vehicle.DisplayName, vehicle.Vin))
	tempSettingVal := climateState.DriverTempSetting
	insideTempVal := climateState.InsideTemp
	outsideTempVal := climateState.OutsideTemp
	if guiSettings.GuiTemperatureUnits == "F" {
		tempSettingVal = (climateState.DriverTempSetting * 1.8) + 32
		insideTempVal = (climateState.InsideTemp * 1.8) + 32
		outsideTempVal = (climateState.OutsideTemp * 1.8) + 32
	}
	batteryLevel.SetText(fmt.Sprintf("%+v%%", chargeStats.BatteryLevel))
	batteryRange.SetText(fmt.Sprintf("%.2f%+v", chargeStats.BatteryRange,
		strings.Replace(guiSettings.GuiDistanceUnits, "/hr", "", -1)))
	batteryRange.SetFixedWidth(10 * len(batteryRange.Text()))
	chargingState.SetText(chargeStats.ChargingState)

	minutesToFull.SetText(fmt.Sprintf("%+v", chargeStats.MinutesToFullCharge))

	fastChargerInd.SetText(chargeStats.FastChargerBrand)
	if chargeStats.BatteryHeaterOn {
		batteryHeaterInd.SetText("On")
	}

	if chargeStats.ChargePortDoorOpen {
		chargeDoorOpenInd.SetText("Open")
	} else {
		chargeDoorOpenInd.SetText("Closed")
	}

	insideTemp.SetText(fmt.Sprintf("%.0f %+v", insideTempVal, guiSettings.GuiTemperatureUnits))
	outsideTemp.SetText(fmt.Sprintf("%.0f %+v", outsideTempVal, guiSettings.GuiTemperatureUnits))
	climateOn.SetChecked(climateState.IsClimateOn)
	tempSetting.SetText(fmt.Sprintf("%.0f", tempSettingVal))
	climateUnitLabel.SetText(guiSettings.GuiTemperatureUnits)

	lockedDoors.SetChecked(vehicleState.Locked)
	sentryMode.SetChecked(vehicleState.SentryMode)
	sentryMode.SetCheckable(!vehicleState.SentryMode)
	lockedDoors.SetCheckable(true)
	climateOn.SetCheckable(true)
	tempSetting.SetReadOnly(false)

	startStopCharge.SetChecked(chargeStats.ChargingState == "Charging")
	if chargeStats.ChargingState == "Disconnected" {
		startStopCharge.SetCheckable(false)
	}

}

func enableClimate(i int) {
	temp, err := strconv.ParseFloat(tempSetting.Text(), 64)
	if err != nil {
		showDialogue(true, "Unable to parse temp setting\n%+v", err)
	}
	if guiSettings.GuiTemperatureUnits == "F" {
		temp = (temp - 32) * 5 / 9
	}
	if i == 0 {
		vehicle.StopAirConditioning()
	} else {
		vehicle.SetTemperature(temp, temp)
		vehicle.StartAirConditioning()
	}

	go setValues()
}

func lockDoors(i int) {
	if i == 0 {
		vehicle.UnlockDoors()
	} else {
		vehicle.LockDoors()
	}
	go setValues()
}

func sentryModeEnable(i int) {
	vehicle.EnableSentry()
	go setValues()
}

func enableCharging(i int) {
	if i == 0 {
		vehicle.StopCharging()
	} else {
		vehicle.StartCharging()
	}
	go setValues()
}

func honkHorn(c bool) {
	err := vehicle.HonkHorn()
	if err != nil {
		showDialogue(true, "There was an error honking the horn\n%+v", err)
		fmt.Printf("%+v\n", err)
	}
	go setValues()
}
func flash(c bool) {
	err := vehicle.FlashLights()
	if err != nil {
		showDialogue(true, "There was an error flashing the lights\n%+v", err)
		fmt.Printf("%+v\n", err)
	}
	go setValues()
}
func openTrunk(c bool) {
	err := vehicle.OpenTrunk("rear")
	if err != nil {
		showDialogue(true, "There was an error opening your trunk\n%+v", err)
		fmt.Printf("%+v\n", err)
	}
	go setValues()
}
func openFrunk(c bool) {
	err := vehicle.OpenTrunk("front")
	if err != nil {
		showDialogue(true, "There was an error opening your frunk\n%+v", err)
		fmt.Printf("%+v\n", err)
	}
	go setValues()
}

func showDialogue(recover bool, msg string, a ...interface{}) {
	popup = true
	if !recover {
		window.Close()
	}
	dialogue := widgets.NewQDialog(nil, 0)
	centralWidget := widgets.NewQWidget(dialogue, 0)
	actionHBox := widgets.NewQHBoxLayout()
	formLayout := widgets.NewQFormLayout(nil)
	contBtn := widgets.NewQPushButton(nil)
	quitBtn := widgets.NewQPushButton(nil)
	message := widgets.NewQLabel(nil, 0)

	dialogue.SetWindowTitle("TeslaGo Alert")
	dialogue.SetMinimumWidth(255)
	dialogue.SetMinimumHeight(50 + (20 * (1 + strings.Count(msg, "\n"))))

	contBtn.SetText("Continue")
	quitBtn.SetText("Quit")
	message.SetText(fmt.Sprintf(msg, a...))
	message.SetWordWrap(true)

	contBtn.ConnectClicked(func(checked bool) {
		window.Show()
		popup = false
		dialogue.Close()

		go setValues()
	})
	quitBtn.ConnectClicked(func(checked bool) {
		mainApp.Quit()
	})

	if recover {
		actionHBox.AddWidget(contBtn, 0, 0)
	}
	actionHBox.AddWidget(quitBtn, 0, 0)

	formLayout.AddRow5(message)
	formLayout.AddRow6(actionHBox)
	centralWidget.SetLayout(formLayout)

	dialogue.Show()
}