package main

import (
	"flag"
	"net/http"

	"github.com/zeromicro/go-zero/core/logx"

	"chat/internal/config"
	"chat/internal/handler"
	"chat/internal/svc"

	"github.com/zeromicro/go-zero/core/conf"
	"github.com/zeromicro/go-zero/rest"
)

var configFile = flag.String("f", "etc/chat-api.yaml", "the config file")

func main() {
	flag.Parse()

	var c config.Config
	conf.MustLoad(*configFile, &c)

	server := rest.MustNewServer(c.RestConf)
	defer server.Stop()

	// 全局處理 OPTIONS 請求（CORS 預檢請求）
	server.Use(func(next http.HandlerFunc) http.HandlerFunc {
		return func(w http.ResponseWriter, r *http.Request) {
			// 設置 CORS 標頭
			w.Header().Set("Access-Control-Allow-Origin", "*")
			w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
			w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization")
			w.Header().Set("Access-Control-Max-Age", "3600")

			// 處理預檢請求
			if r.Method == http.MethodOptions {
				w.WriteHeader(http.StatusNoContent)
				return
			}

			next(w, r)
		}
	})

	ctx := svc.NewServiceContext(c)
	handler.RegisterHandlers(server, ctx)

	logx.Infof("Starting server at %s:%d...\n", c.Host, c.Port)
	server.Start()
}