main.go

package main

import (
	"embed"
	"log"
	"mime"
	"net/http"
	"os"
	"path/filepath"

	"gvnotes/internal/config"

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

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

//go:embed db/migrations
var migrations embed.FS

// imageFileHandler serves image files stored on disk under imagesDir.
// Only the base filename is used to prevent path traversal.
type imageFileHandler struct {
	imagesDir string
}

func (h *imageFileHandler) ServeHTTP(res http.ResponseWriter, req *http.Request) {
	filename := filepath.Base(req.URL.Path)
	fullPath := filepath.Join(h.imagesDir, filename)
	data, err := os.ReadFile(fullPath)
	if err != nil {
		http.NotFound(res, req)
		return
	}
	ct := mime.TypeByExtension(filepath.Ext(filename))
	if ct == "" {
		ct = "application/octet-stream"
	}
	res.Header().Set("Content-Type", ct)
	res.Write(data)
}

func main() {
	appMigrations = migrations

	imagesDir, err := config.ImagesDir()
	if err != nil {
		log.Fatalf("failed to resolve images directory: %v", err)
	}

	app := NewApp()

	err = wails.Run(&options.App{
		Title:                    "GVNotes",
		Width:                    1600,
		Height:                   1200,
		MinWidth:                 533,
		MinHeight:                400,
		HideWindowOnClose:        true,
		EnableDefaultContextMenu: true,

		BackgroundColour: &options.RGBA{R: 34, G: 37, B: 49, A: 1},
		OnStartup:        app.startup,
		OnShutdown:       app.shutdown,
		CSSDragProperty:  "--wails-draggable",
		CSSDragValue:     "drag",
		AssetServer: &assetserver.Options{
			Assets:  assets,
			Handler: &imageFileHandler{imagesDir: imagesDir},
		},
		Windows: &windows.Options{
			WebviewIsTransparent: true,
			WindowIsTranslucent:  true,
			CustomTheme: &windows.ThemeSettings{
				DarkModeTitleBar: windows.RGB(34, 37, 49),
				DarkModeBorder:   windows.RGB(34, 37, 49),
			},
		},
		Mac: &mac.Options{
			TitleBar: &mac.TitleBar{
				TitlebarAppearsTransparent: true,
				HideTitle:                  true,
				UseToolbar:                 true,
				HideToolbarSeparator:       false,
			},
			About: &mac.AboutInfo{
				Title:   "GVNotes",
				Message: "© 2026 Guillermo Valentín",
			},
		},
		Bind: []interface{}{
			app,
		},
	})

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