package main

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

	"soul-api/internal/config"
	"soul-api/internal/database"
	"soul-api/internal/handler"
	"soul-api/internal/router"
	"soul-api/internal/wechat"
)

func main() {
	cfg, err := config.Load()
	if err != nil {
		log.Fatal("load config: ", err)
	}
	config.SetCurrent(cfg)
	if err := database.Init(cfg.DBDSN); err != nil {
		log.Fatal("database: ", err)
	}
	if err := wechat.Init(cfg); err != nil {
		log.Fatal("wechat: ", err)
	}
	if err := wechat.InitTransfer(cfg); err != nil {
		log.Fatal("wechat transfer: ", err)
	}

	r := router.Setup(cfg)
	srv := &http.Server{
		Addr:    ":" + cfg.Port,
		Handler: r,
	}

	go func() {
		log.Printf("soul-api listen on :%s (mode=%s)", cfg.Port, cfg.Mode)
		log.Printf("  -> 访问地址: http://localhost:%s  (健康检查: http://localhost:%s/health)", cfg.Port, cfg.Port)
		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatal("listen: ", err)
		}
	}()

	// 内置订单对账定时任务（SYNC_ORDERS_INTERVAL_MINUTES > 0 时启动）
	if cfg.SyncOrdersIntervalMinutes > 0 {
		interval := time.Duration(cfg.SyncOrdersIntervalMinutes) * time.Minute
		go func() {
			// 启动后延迟 1 分钟执行第一次，避免与启动流程抢资源
			time.Sleep(1 * time.Minute)
			ticker := time.NewTicker(interval)
			defer ticker.Stop()
			handler.SyncOrdersLogf("内置定时任务已启动，间隔 %d 分钟", cfg.SyncOrdersIntervalMinutes)
			for {
				ctx := context.Background()
				synced, total, err := handler.RunSyncOrders(ctx, 7)
				if err != nil {
					handler.SyncOrdersLogf("对账失败: %v", err)
				} else if total > 0 {
					handler.SyncOrdersLogf("本轮检查 %d 笔，补齐 %d 笔漏单", total, synced)
				}
				<-ticker.C
			}
		}()
	}

	quit := make(chan os.Signal, 1)
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
	<-quit
	log.Println("shutting down...")
	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
	defer cancel()
	if err := srv.Shutdown(ctx); err != nil {
		log.Fatal("server shutdown: ", err)
	}
	log.Println("bye")
}