package main

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

	"github.com/wailsapp/wails/v2"
	"github.com/wailsapp/wails/v2/pkg/options"
	"github.com/wailsapp/wails/v2/pkg/options/assetserver"
)

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

//go:embed public/MuPDFLib.dll
var mupdfDLL []byte

func init() {
	exe, err := os.Executable()
	if err != nil {
		return
	}
	exeDir := filepath.Dir(exe)
	names := []string{"libmupdf.dll", "MuPDFLib.dll"}

	// 检查是否已存在
	for _, name := range names {
		p := filepath.Join(exeDir, name)
		if _, err := os.Stat(p); err == nil {
			return // DLL已存在
		}
	}

	// 尝试释放嵌入的DLL
	for _, name := range names {
		p := filepath.Join(exeDir, name)
		if err := os.WriteFile(p, mupdfDLL, 0644); err != nil {
			// 记录错误但不崩溃
			log.Printf("Failed to extract MuPDF DLL: %v", err)
		} else {
			return
		}
	}

	// 如果都失败，设置环境变量标记使用nofitz
	log.Println("MuPDF DLL not available, will use nofitz mode for PDF operations")
	os.Setenv("XK_NO_FITZ", "1")
}

func main() {
	app := NewApp()
	fileHandler := NewFileHandler()

	err := wails.Run(&options.App{
		Title:  "年糕工具",
		Width:  1280,
		Height: 860,
		AssetServer: &assetserver.Options{
			Assets: assets,
		},
		BackgroundColour: &options.RGBA{R: 13, G: 17, B: 23, A: 1},
		OnStartup: func(ctx context.Context) {
			app.startup(ctx)
			fileHandler.startup(ctx)
		},
		Bind: []interface{}{
			app,
			fileHandler,
		},
	})

	if err != nil {
		println("Error:", err.Error())
	}
}