package main

import (
	"context"
	"errors"
	"fmt"
	"io"
	"os"
	"strings"
	"time"

	"git.tcp.direct/kayos/common/squish"
	"github.com/manifoldco/promptui"
	"github.com/rs/zerolog"
	"github.com/yunginnanet/huego"

	"git.tcp.direct/kayos/ziggs/internal/cli"
	"git.tcp.direct/kayos/ziggs/internal/common"
	"git.tcp.direct/kayos/ziggs/internal/config"
	"git.tcp.direct/kayos/ziggs/internal/data"
	"git.tcp.direct/kayos/ziggs/internal/haptic"
	"git.tcp.direct/kayos/ziggs/internal/ziggy"
)

var (
	log *zerolog.Logger
)

const banner = "H4sIAAAAAAACA5OONja2NjHIfTSl59GUBjCaIB1tkAvCCtLIkmtwyjRQLmOQyyUdbYnukhmoeg2NwSyYsiagoDmIqYCkDFkSQ8caShROwe5oqGaYPHZXg2W34JZqoIYU0DkAuowN3c4BAAA="

func aesthetic() {
	bnr, _ := squish.UnpackStr(banner)
	_, _ = io.Copy(os.Stdout, strings.NewReader(bnr))
	compileTime, Version := common.Version()
	if Version == "" {
		Version = "DEVEL"
	}
	if compileTime == "" {
		compileTime = time.Now().Format(time.RFC3339)
	}

	index := len(Version)
	if len(Version) > 18 {
		index = 18
	}
	log.Debug().Str("version", Version[:index]).Send()
	log.Debug().Str("built", compileTime).Send()
}

func init() {
	config.Init()
	log = config.StartLogger()
	log.Trace().Msg("Logger started")

	if len(os.Args) > 1 {
		return
	}

	aesthetic()
}

func TurnAll(Known []*ziggy.Bridge, mode ziggy.ToggleMode) {
	for _, bridge := range Known {
		for _, l := range ziggy.GetLightMap() {
			go func(l *ziggy.HueLight, b *ziggy.Bridge) {
				log.Debug().
					Str("caller", b.Host).
					Str("type", l.ProductName).
					Bool("on", l.IsOn()).Msg(l.ModelID)
				ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(5*time.Second))
				err := ziggy.Assert(ctx, l, mode)
				if err != nil {
					log.Error().Err(err).Msg("failed to assert state")
				}
				defer cancel()
			}(l, bridge)
		}
	}
}

func FindLights(ctx context.Context, c *ziggy.Bridge) error {
	log.Trace().Msg("looking for lights...")
	resp, err := c.FindLights()
	if err != nil {
		c.Log().Fatal().Err(err).Msg("FUBAR")
	}
	for str, inter := range resp.Success {
		c.Log().Trace().Interface(str, inter).Msg(" ")
	}
	var count = 0
	for {
		select {
		case <-ctx.Done():
			return context.Canceled
		default:
			ls, err := c.GetLights()
			if err != nil {
				c.Log().Warn().Err(err).Msg(" ")
			}
			if len(ls) > count {
				count = len(ls)
				return nil
			}
		}
	}
}

func getNewSensors(known *ziggy.Bridge) {
	go known.FindSensors()
	Sensors, err := known.GetNewSensors()
	if err != nil {
		log.Fatal().Err(err).Msg("failed to get sensors")
	}
	if Sensors == nil {
		log.Fatal().Caller(1).Msg("nil")
	}
	for len(Sensors.Sensors) < 1 {
		Sensors, err = known.GetNewSensors()
		if err != nil {
			log.Error().Err(err).Msg("")
		}
		time.Sleep(2 * time.Second)
	}
	go log.Debug().Interface("sensors", Sensors).Msg("")
	selSensor(Sensors.Sensors)
}

func selSensor(Sensors []*huego.Sensor) huego.Sensor {
	p := promptui.Select{
		Label:        "Sensors",
		Items:        Sensors,
		CursorPos:    0,
		HideHelp:     false,
		HideSelected: false,
		Pointer:      common.ZiggsPointer,
	}
	i, s, e := p.Run()
	if e != nil {
		log.Error().Err(e).Msg("")
	}
	fmt.Printf("\nselected [%d] %s\n", i, s)
	return *Sensors[i]
}

func main() {
	var Known []*ziggy.Bridge
	var err error
	Known, err = ziggy.Setup()

	if err != nil {
		log.Fatal().Err(err).Msg("failed to get bridges")
	}

	log = config.GetLogger()
	cli.ProcessBridges()
	go func() {
		cli.ProcessGroups(ziggy.GetGroupMap())
		cli.ProcessLights(ziggy.GetLightMap())
		cli.ProcessScenes(ziggy.GetSceneMap())
	}()

	data.Start()
	defer data.Close()

	if len(os.Args) < 2 {
		cli.StartCLI()
	}

	for i, arg := range os.Args {
		switch arg {
		case "events":
			evch := make(chan string, 10)
			go func() {
				log.Info().Msg("starting event client")
				defer log.Warn().Msg("event client stopped")
				for e := range evch {
					e = strings.TrimPrefix(e, "data: ")
					os.Stdout.WriteString(e)
					os.Stdout.WriteString("\n")
				}
			}()

			evc := haptic.NewEventClient()
			evc.Subscribe("*", evch)
			if err = evc.Start(config.KnownBridges[0].Hostname, config.KnownBridges[0].Username); err != nil &&
				!errors.Is(err, context.Canceled) && !errors.Is(err, io.EOF) {
				log.Fatal().Err(err).Msg("failed to start event client")
			}
			close(evch)
			return
		case "discover":

		case "on":
			log.Debug().Msg("turning all " + arg)
			TurnAll(Known, ziggy.ToggleOn)
		case "off":
			log.Debug().Msg("turning all " + arg)
			TurnAll(Known, ziggy.ToggleOff)
		case "rainbow":
			log.Debug().Msg("turning all " + arg)
			TurnAll(Known, ziggy.ToggleRainbow)
		case "scan":
			log.Debug().Msg("executing " + arg)
			if len(os.Args) < 2 {
				for _, k := range Known {
					FindLights(context.TODO(), k)
				}
			}
		case "shell":
			cli.StartCLI()
		case "newsensor":
			getNewSensors(Known[0])
		case "sensors":
			sens, err := Known[0].GetSensors()
			if err != nil {
				log.Fatal().Err(err).Msg("-")
			}
			var sensptr []*huego.Sensor
			for _, s := range sens {
				sensptr = append(sensptr, &s)
			}
			selSensor(sensptr)
		case "--":
			log.Debug().Msg("executing " + strings.Join(os.Args[i+1:], " "))
			cli.Executor(strings.Join(os.Args[i+1:], " "))
		}
	}

	done := make(chan struct{}, 1)
	<-done
}