// 平台核心 API 的启动入口。
package main

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

	"git.apinb.com/heqiapp/platforms/backend/internal/config"
	"git.apinb.com/heqiapp/platforms/backend/internal/database"
	platformhttp "git.apinb.com/heqiapp/platforms/backend/internal/http"
)

func main() {
	appConfig := config.Load()
	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))

	pool, err := database.Connect(context.Background(), appConfig.DatabaseURL)
	if err != nil {
		logger.Error("连接 PostgreSQL 失败", "error", err)
		os.Exit(1)
	}
	defer pool.Close()

	if err := database.MigrateAndSeed(context.Background(), pool); err != nil {
		logger.Error("初始化数据库失败", "error", err)
		os.Exit(1)
	}

	server := &http.Server{
		Addr:              ":" + appConfig.Port,
		Handler:           platformhttp.NewRouter(pool, logger),
		ReadHeaderTimeout: 5 * time.Second,
	}

	go func() {
		logger.Info("平台核心 API 已启动", "address", server.Addr)
		if err := server.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
			logger.Error("HTTP 服务异常退出", "error", err)
			os.Exit(1)
		}
	}()

	stop := make(chan os.Signal, 1)
	signal.Notify(stop, syscall.SIGINT, syscall.SIGTERM)
	<-stop

	shutdownContext, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()
	if err := server.Shutdown(shutdownContext); err != nil {
		logger.Error("HTTP 服务停止失败", "error", err)
	}
}