package main

import (
	"log"
	"os"
	"time"

	"gitnet.fr/deblan/ha-rgb-screen/internal/color"
	"gitnet.fr/deblan/ha-rgb-screen/internal/config"
	"gitnet.fr/deblan/ha-rgb-screen/internal/ha"
	"gitnet.fr/deblan/ha-rgb-screen/internal/screen"
)

func main() {
	params := config.GetConfig()

	if !params.IsValid() {
		params.Usage()
		os.Exit(1)
	}

	s := screen.NewScreen(params)
	client := ha.NewClient(params)
	var prevValue color.RGB

	for {
		enabled, err := client.IsAmbianceEnabled()

		if err != nil {
			log.Printf("[error] %s\n", err.Error())
			time.Sleep(3 * time.Second)
			continue
		}

		if !enabled {
			if params.Debug {
				log.Print("[debug] Ambiance is disabled\n")
				time.Sleep(3 * time.Second)
				continue
			}
		}

		capture, err := s.Capture()

		if err == nil {
			nextValue := color.GetRgbAverage(capture)
			delta := color.Delta(nextValue, prevValue)

			if params.Debug {
				log.Printf("[debug] Delta=%f Prev=%f Next=%f \n", delta, prevValue, nextValue)
			}

			if delta > params.Delta {
				prevValue = nextValue

				if err := client.UpdateLight(nextValue); err != nil && !params.Debug {
					log.Printf("[error] %s\n", err.Error())
				}
			}
		} else {
			log.Fatalf("[fatal error]: %s", err.Error())
		}

		time.Sleep(time.Duration(params.Delay) * time.Millisecond)
	}
}