package main

import (
	"embed"
	"log"
	"log/slog"
	"os"
	"path/filepath"

	wraithapp "github.com/vstockwell/wraith/internal/app"
	"github.com/wailsapp/wails/v3/pkg/application"
)

// version is set at build time via -ldflags "-X main.version=..."
var version = "dev"

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

func main() {
	// Set up file logging so we can debug without a console window
	if logFile := setupFileLogging(); logFile != nil {
		defer logFile.Close()
	}
	slog.Info("starting Wraith", "version", version)

	wraith, err := wraithapp.New(version)
	if err != nil {
		log.Fatalf("failed to initialize: %v", err)
	}

	app := application.New(application.Options{
		Name:        "Wraith",
		Description: "SSH + RDP + SFTP Desktop Client",
		Services: []application.Service{
			application.NewService(wraith),
			application.NewService(wraith.Connections),
			application.NewService(wraith.Themes),
			application.NewService(wraith.Settings),
			application.NewService(wraith.SSH),
			application.NewService(wraith.SFTP),
			application.NewService(wraith.RDP),
			application.NewService(wraith.Updater),
		},
		Assets: application.AssetOptions{
			Handler: application.BundledAssetFileServer(assets),
		},
	})

	// Wire Wails app reference for event emission (SSH output → frontend)
	wraith.SetWailsApp(app)

	app.Window.NewWithOptions(application.WebviewWindowOptions{
		Title:  "Wraith",
		Width:  1400,
		Height: 900,
		URL:    "/",
		BackgroundColour: application.NewRGBA(13, 17, 23, 255),
	})

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

// setupFileLogging configures slog to write to %APPDATA%\Wraith\wraith.log (Windows)
// or ~/.local/share/wraith/wraith.log (macOS/Linux). Returns the file handle for deferred close.
func setupFileLogging() *os.File {
	var logDir string
	if appData := os.Getenv("APPDATA"); appData != "" {
		logDir = filepath.Join(appData, "Wraith")
	} else if home, err := os.UserHomeDir(); err == nil {
		logDir = filepath.Join(home, ".local", "share", "wraith")
	} else {
		return nil
	}

	os.MkdirAll(logDir, 0755)
	logPath := filepath.Join(logDir, "wraith.log")

	f, err := os.OpenFile(logPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
	if err != nil {
		return nil
	}

	handler := slog.NewTextHandler(f, &slog.HandlerOptions{Level: slog.LevelDebug})
	slog.SetDefault(slog.New(handler))
	log.SetOutput(f)
	return f
}