package main

import (
	"embed"
	"encoding/json"
	"flag"
	"fmt"
	"log"
	"net/http"
	"strings"
	"time"

	"github.com/DeanThompson/ginpprof"
	"github.com/denisbrodbeck/machineid"
	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
	"github.com/nicksnyder/go-i18n/v2/i18n"
	"github.com/spf13/viper"
	"golang.org/x/text/language"
	"sikey.com/websocket/config"
	"sikey.com/websocket/pkg/gid"
	"sikey.com/websocket/server"
)

var name = flag.String("n", "w303", "the name of the server")
var port = flag.Int64("p", 8081, "the port of the server")
var nodeId = flag.Int64("i", 1, "the node id of the server")
var configFile = flag.String("f", "./etc/websocket.debug.yaml", "the config file")

func main() {
	time.Local = time.UTC

	flag.Parse()
	gid.SetNodeId(*nodeId)
	config.MustLoadConfig(*configFile)
	port := fmt.Sprintf(":%d", *port)
	log.Println("Server start at ", port)

	app := newApp()
	if err := app.Run(port); err != nil {
		log.Fatalln(err)
	}
}

//go:embed locales/*.json
var LocaleFS embed.FS

func newApp() *gin.Engine {
	app := gin.Default()
	ginpprof.Wrap(app)
	gin.SetMode(gin.ReleaseMode)

	// bundle := &i18n.BundleCfg{
	// 	FormatBundleFile: viper.GetString("i18n.format_bundle_file"),
	// 	RootPath:         viper.GetString("i18n.root_path"),
	// 	UnmarshalFunc:    json.Unmarshal,
	// 	AcceptLanguage:   []language.Tag{language.Chinese, language.English},
	// 	DefaultLanguage:  language.English,
	// }

	// var localizeMiddleware = i18n.Localize(
	// 	i18n.WithGetLngHandle(middleware.Language()),
	// 	i18n.WithBundle(bundle),
	// )
	// app.Use(localizeMiddleware)

	srv := server.NewServer()
	app.GET("/websocket/endpoint", func(ctx *gin.Context) {

		// i18n
		rootPath := viper.GetString("i18n.root_path")
		bundle := i18n.NewBundle(language.English)
		bundle.RegisterUnmarshalFunc("json", json.Unmarshal)
		bundle.LoadMessageFile(rootPath + "/en.json")
		bundle.LoadMessageFile(rootPath + "/zh.json")
		// ctx.Set("bundle", bundle)
		srv.WebsocketHandler(ctx, bundle)
	})
	app.GET("/websocket/clients", func(ctx *gin.Context) {
		clients := srv.GetClients()
		ctx.JSON(http.StatusOK, gin.H{"clients": clients})
	})
	return app
}

func serverId() string {
	var id string
	id, err := machineid.ID()
	if err != nil {
		id = uuid.NewString()
	} else {
		id = strings.ToLower(id)
	}
	return id
}