//go:build linux
// +build linux

package cmd

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

	"gitea.urkob.com/mcr-swiss/watch-spring/internal"
	"github.com/sirupsen/logrus"
	"github.com/spf13/cobra"
)

var Watch = &cobra.Command{
	Use:   "watch",
	Short: "",
	Long:  ``,
	Run: func(cmd *cobra.Command, args []string) {
		ctx, cancel := context.WithTimeout(context.Background(), time.Minute*5) // or any appropriate time
		defer cancel()

		// 	log.SetFlags(log.Ldate | log.Lmicroseconds)

		// log.SetFlags(log.Lmicroseconds)
		// if cfg.LogFile {
		// 	logFileName := fmt.Sprintf("%s.txt", time.Now().Format(strings.ReplaceAll(time.RFC1123Z, ":", "_")))
		// 	f, err := os.OpenFile(logFileName, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0o644)
		// 	if err != nil {
		// 		panic(err)
		// 	}

		// 	defer f.Close()
		// 	log.SetOutput(f)
		// }

		dirToWatch, err := cmd.Flags().GetString("dir")
		if err != nil {
			panic(fmt.Errorf("dir %w", err))
		}
		logLevel, err := cmd.Flags().GetUint("log-level")
		if err != nil {
			panic(fmt.Errorf("bucket %w", err))
		}
		logger := logrus.New()
		logger.SetLevel(logrus.Level(logLevel))

		logger.Info("start check")
		defer logger.Info("end check")

		// C:\scripts\watch-spring.exe --dir "C:\backup\ovh5win2oneshot" --script="C:\scripts\rclone-deploy.bat"

		notif := internal.NewNotifier()
		w, err := internal.NewWatcher(logger, notif, internal.Execute)
		if err != nil {
			panic(err)
		}

		defer func() {
			if err := w.Close(); err != nil {
				log.Fatalf("watcherIface.Close: %s\n", err)
			}
		}()

		if err := w.Monitor(dirToWatch); err != nil {
			log.Fatalf("watcherIface.Monitor: %s\n", err)
		}

		errChan := make(chan error)
		go w.Listen(ctx, errChan, "", "")

		// Handle termination on ctrl+signalChan
		signalChan := make(chan os.Signal, 1)
		signal.Notify(signalChan, os.Interrupt, syscall.SIGTERM)
		for {
			select {
			case <-signalChan:
				log.Println("shutdown")
				os.Exit(1)
			case err, ok := <-errChan:
				if !ok {
					panic(fmt.Errorf("channel has been closed"))
				}
				if err != nil {
					log.Printf("watcherIface.Monitor: %s\n", err)
					continue
				}
			}
		}

		// if err := mailSrv.SendOK(email.EmailWithAttachments{
		// 	To:        cfg.MailTo,
		// 	Bucket:    bucketName,
		// 	BackupDir: dirToWatch,
		// 	Count: map[string]int{
		// 		"count_ok":           countOK,
		// 		"count_local":        countLocal,
		// 		"count_b2":           countB2,
		// 		"count_not_in_local": countNotInLocal,
		// 		"count_not_in_cloud": countNotInCloud,
		// 	},
		// 	Attachments: []email.EmailAttachment{{File: bytes.NewReader([]byte(reportBuilder.String())), Title: fmt.Sprintf("%s-check-report.txt", bucketName)}},
		// }); err != nil {
		// 	panic(fmt.Errorf("error while send email: %w", err))
		// }
	},
}