package cmd

import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
	"time"

	"axis_timelapse/camera"
	"axis_timelapse/config"

	"github.com/go-co-op/gocron/v2"
	"github.com/rs/zerolog/log"
	"github.com/spf13/cobra"
)

var rootCommand = &cobra.Command{
	Use:   "axis_timelapse",
	Short: "Runs the axis_timelapse daemon.",
	PreRun: func(cmd *cobra.Command, args []string) {
		config.GetConfig()
		config.GenerateFullURL()
	},
	Run: func(cmd *cobra.Command, args []string) {
		startTasks()
	},
}

var versionCommand = &cobra.Command{
	Use:   "version",
	Short: "Prints the current executable version and exits.",
	Run: func(cmd *cobra.Command, _ []string) {
		fmt.Printf("%s | Version: %s Build: %s | Copyright © %d William Gill\n", config.Project, config.Version, config.Build, time.Now().Year())
	},
}

func Execute() {
	if err := rootCommand.Execute(); err != nil {
		log.Fatal().Err(err).Msgf("failed to execute command.")
	}
}

func init() {
	rootCommand.PersistentFlags().StringVarP(&config.TOML, "config", "c", "config.toml", "Specify daemon config file.")
	rootCommand.AddCommand(versionCommand)
}

func startTasks() {
	// Create a new scheduler
	s, err := gocron.NewScheduler()
	if err != nil {
		log.Fatal().Err(err).Msgf("")
	}

	// Schedule the job
	_, err = s.NewJob(
		gocron.CronJob(config.CaptureChron, false),
		gocron.NewTask(func() {
			camera.CaptureImage()
		}),
	)
	if err != nil {
		log.Fatal().Err(err).Msgf("")
	}

	// Start the scheduler
	s.Start()

	// Set up signal handling for graceful shutdown
	sigChan := make(chan os.Signal, 1)
	signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)

	// Wait for interrupt signal
	<-sigChan
	log.Info().Msg("Received interrupt signal, shutting down gracefully...")

	// Shutdown the scheduler gracefully
	err = s.Shutdown()
	if err != nil {
		log.Fatal().Err(err).Msgf("Error during shutdown.")
	}
}