package main

import (
	"context"
	"dmxconnect/hardware"
	genericmidi "dmxconnect/hardware/genericMIDI"
	"dmxconnect/hardware/genericftdi"
	"dmxconnect/hardware/os2l"
	"fmt"
	"io"
	"time"

	"github.com/rs/zerolog/log"

	"os"
	"strings"
	"sync"
)

// App struct
type App struct {
	ctx        context.Context
	cancelFunc context.CancelFunc
	wait       sync.WaitGroup

	hardwareManager *hardware.Manager // For managing all the hardware
	wmiMutex        sync.Mutex        // Avoid some WMI operations at the same time
	projectInfo     ProjectInfo       // The project information structure
	projectSave     string            // The file name of the project
}

// NewApp creates a new App application struct
func NewApp() *App {
	// Create a new hadware manager
	hardwareManager := hardware.NewManager()
	// Register all the providers to use as hardware scanners
	hardwareManager.RegisterProvider(genericftdi.NewProvider(3 * time.Second))
	hardwareManager.RegisterProvider(os2l.NewProvider())
	hardwareManager.RegisterProvider(genericmidi.NewProvider(3 * time.Second))
	return &App{
		hardwareManager: hardwareManager,
		projectSave:     "",
		projectInfo: ProjectInfo{
			EndpointsInfo: make(map[string]hardware.EndpointInfo),
		},
	}
}

// startup is called when the app starts. The context is saved
// so we can call the runtime methods
func (a *App) onStartup(ctx context.Context) {
	a.ctx, a.cancelFunc = context.WithCancel(ctx)

	// Starting the hardware manager
	a.wait.Add(1)
	go func() {
		defer a.wait.Done()
		err := a.hardwareManager.Start(a.ctx)
		if err != nil {
			log.Err(err).Str("file", "app").Msg("unable to start the hardware manager")
			return
		}
	}()
}

// onReady is called when the DOM is ready
// We get the current endpoints connected
func (a *App) onReady(ctx context.Context) {
	// log.Debug().Str("file", "endpoints").Msg("getting endpoints...")
	// err := a.hardwareManager.Scan()
	// if err != nil {
	// 	log.Err(err).Str("file", "app").Msg("unable to get the endpoints")
	// }
	return
}

// onShutdown is called when the app is closing
// We stop all the pending processes
func (a *App) onShutdown(ctx context.Context) {
	// Close the application properly
	log.Trace().Str("file", "app").Msg("app is closing")
	// Explicitly close the context
	a.cancelFunc()
	// Wait for application to close properly
	a.hardwareManager.WaitStop()
	// a.cancelFunc()
	// err := a.hardwareManager.Stop()
	// if err != nil {
	// 	log.Err(err).Str("file", "app").Msg("unable to stop the hardware manager")
	// }
	return
}

func formatString(input string) string {
	// Convertir en minuscules
	lowerCaseString := strings.ToLower(input)
	// Remplacer les espaces par des underscores
	formattedString := strings.ReplaceAll(lowerCaseString, " ", "_")
	return formattedString
}

func copy(src, dst string) (int64, error) {
	sourceFileStat, err := os.Stat(src)
	if err != nil {
		return 0, err
	}

	if !sourceFileStat.Mode().IsRegular() {
		return 0, fmt.Errorf("%s is not a regular file", src)
	}

	source, err := os.Open(src)
	if err != nil {
		return 0, err
	}
	defer source.Close()

	destination, err := os.Create(dst)
	if err != nil {
		return 0, err
	}
	defer destination.Close()
	nBytes, err := io.Copy(destination, source)
	return nBytes, err
}