package main

import (
	"context"
	"embed"
	"fmt"
	"net"
	"net/http"
	"time"

	"github.com/wailsapp/wails/v2"
	"github.com/wailsapp/wails/v2/pkg/options"
	"github.com/wailsapp/wails/v2/pkg/options/assetserver"
	"gitlab.com/revoluterra-dev/common/helpers/trace"
)

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

func main() {
	// Create an instance of the app structure
	app := NewApp()

	echo := NewEcho(context.Background(), nil)
	backendGroup := echo.Group("/backend")

	RegisterApi(backendGroup.Group(""))

	go StartServer(context.Background(),
		8888,
		echo,
		func() {})

	// Create application with options
	err := wails.Run(&options.App{
		Title:  "Timon",
		Width:  1024,
		Height: 768,
		AssetServer: &assetserver.Options{
			Assets: assets,
		},
		BackgroundColour: options.NewRGB(255, 255, 255),
		OnStartup:        app.startup,
		Bind: []interface{}{
			app,
		},
	})

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

func StartServer(ctx context.Context, port int64, router http.Handler, doneCallback func()) {
	srv := &http.Server{
		Addr:        fmt.Sprintf(":%d", port),
		Handler:     router,
		BaseContext: func(net.Listener) context.Context { return ctx },
	}

	go func() {
		var err error

		err = srv.ListenAndServe()

		if err != nil && !trace.Is(err, http.ErrServerClosed) {
			println(fmt.Sprintf("listen failed: %s\n", err))
		}
		doneCallback()
	}()

	<-ctx.Done()
	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
	defer cancel()
	if err := srv.Shutdown(ctx); err != nil {
		println(fmt.Sprintf("service shutdown failed: %s\n", err))
	}
}