package main

import (
	"embed"
	_ "embed"
	"firefly-launcher/internal"
	"firefly-launcher/pkg/constant"
	"fmt"
	"log"
	"os"
	"path/filepath"

	"github.com/wailsapp/wails/v3/pkg/application"
)

// Wails uses Go's `embed` package to embed the frontend files into the binary.
// Any files in the frontend/dist folder will be embedded into the binary and
// made available to the frontend.
// See https://pkg.go.dev/embed for more information.

//go:embed all:frontend/dist
var assets embed.FS

//go:embed all:assets
var tools embed.FS

func fileExists(path string) bool {
	info, err := os.Stat(path)
	return err == nil && !info.IsDir()
}

func extractFile(embedPath, outPath string) error {
	data, err := tools.ReadFile(embedPath)
	if err != nil {
		return fmt.Errorf("can't read file embed %s: %w", embedPath, err)
	}

	if err := os.MkdirAll(filepath.Dir(outPath), 0755); err != nil {
		return fmt.Errorf("can't create directory %s: %w", filepath.Dir(outPath), err)
	}

	return os.WriteFile(outPath, data, 0755)
}

// main function serves as the application's entry point. It initializes the application, creates a window,
// and starts a goroutine that emits a time-based event every second. It subsequently runs the application and
// logs any error that might occur.
func main() {
	for outPath, embedPath := range constant.RequiredFiles {
		if !fileExists(outPath.String()) {
			err := extractFile(embedPath, outPath.String())
			if err != nil {
				fmt.Println("can't copy file:", err)
			}
		}
	}
	// Create a new Wails application by providing the necessary options.
	// Variables 'Name' and 'Description' are for application metadata.
	// 'Assets' configures the asset server with the 'FS' variable pointing to the frontend files.
	// 'Bind' is a list of Go struct instances. The frontend has access to the methods of these instances.
	// 'Mac' options tailor the application when running an macOS.
	app := application.New(application.Options{
		Name:        "firefly-launcher",
		Description: "Firefly Launcher - Kain",
		Services: []application.Service{
			application.NewService(&internal.FSService{}),
			application.NewService(&internal.LanguageService{}),
			application.NewService(&internal.GitService{}),
			application.NewService(&internal.HdiffzService{}),
		},
		Assets: application.AssetOptions{
			Handler: application.AssetFileServerFS(assets),
			
		},
		Mac: application.MacOptions{
			ApplicationShouldTerminateAfterLastWindowClosed: true,
		},
	})

	// Create a new window with the necessary options.
	// 'Title' is the title of the window.
	// 'Mac' options tailor the window when running on macOS.
	// 'BackgroundColour' is the background colour of the window.
	// 'URL' is the URL that will be loaded into the webview.

	app.NewWebviewWindowWithOptions(application.WebviewWindowOptions{

		Title: "Firefly Launcher - Kain",
		Mac: application.MacWindow{
			InvisibleTitleBarHeight: 50,
			Backdrop:                application.MacBackdropTranslucent,
			TitleBar:                application.MacTitleBarHiddenInset,
		},

		BackgroundColour: application.NewRGB(27, 38, 54),
		Width:            1200,
		Height:           600,
		URL:              "/",
		DevToolsEnabled:  true,
	})

	err := app.Run()
	if err != nil {
		log.Fatal(err)
	}
}