package main

import (
	"context"
	"log"
	"net/http"
	"os"
	"os/signal"
	"syscall"
	"time"

	"ca-mini/db"
	"ca-mini/internal/config"
	"ca-mini/internal/logger"
	"ca-mini/internal/routes"

	"github.com/gorilla/mux"
)

func main() {
	// 加载配置
	cfg, err := config.Load()
	if err != nil {
		log.Printf("Failed to load config %v", err)
	}

	// 初始化日志记录器
	logger.InitLogger()
	defer logger.CloseLogger()

	// 初始化数据库连接
	if err := db.InitDB(); err != nil {
		log.Printf("Failed to initialize database: %v", err)
	}
	defer db.CloseDB()

	// 设置Gin路由
	r := mux.NewRouter()
	routes.SetupAPIRoutes(r)

	// 启动HTTP服务器
	server := &http.Server{
		Addr:        cfg.ServerAddress,
		Handler:     r,
		ReadTimeout: 10 * time.Second,
	}

	// 启动服务器
	go func() {
		log.Printf("Server starting on %v", cfg.ServerAddress)
		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Printf("Failed to start server: %v", err)
		}
	}()

	// 优雅关闭服务器
	stop := make(chan os.Signal, 1)
	signal.Notify(stop, syscall.SIGINT, syscall.SIGTERM)
	<-stop
	log.Println("Server shutting down")

	// 设置超时时间
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	if err := server.Shutdown(ctx); err != nil {
		log.Printf("Server shutdown failed: %v", err)
	}

	log.Println("Server exited properly")
}