package main

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

func main() {
	config := LoadConfig()

	// 可选初始化 MySQL
	var db *PromptDB
	if config.MySQLDSN != "" {
		var err error
		db, err = NewPromptDB(config.MySQLDSN)
		if err != nil {
			log.Fatalf("failed to init mysql: %v", err)
		}
		log.Println("mysql prompt recording enabled")
	} else {
		log.Println("mysql not configured, prompt recording disabled")
	}

	handler := NewHookHandler(config, db)

	mux := http.NewServeMux()
	mux.HandleFunc("/hooks", handler.HandleHook)
	mux.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusOK)
		w.Write([]byte(`{"status":"ok"}`))
	})

	srv := &http.Server{
		Addr:         config.Port,
		Handler:      mux,
		ReadTimeout:  10 * time.Second,
		WriteTimeout: 10 * time.Second,
		IdleTimeout:  60 * time.Second,
	}

	// 优雅关闭
	go func() {
		sigCh := make(chan os.Signal, 1)
		signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
		<-sigCh
		log.Println("shutting down...")

		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
		defer cancel()

		if err := srv.Shutdown(ctx); err != nil {
			log.Printf("server shutdown error: %v", err)
		}
		if db != nil {
			db.Close()
		}
	}()

	log.Printf("cc-hook service starting on %s", config.Port)
	log.Printf("gotify endpoint: %s", config.GotifyURL)

	if err := srv.ListenAndServe(); err != http.ErrServerClosed {
		log.Fatalf("server failed: %v", err)
	}
	log.Println("server stopped")
}