package main

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

	"synctv/server/internal/config"
	"synctv/server/internal/httpapi"
	"synctv/server/internal/proxy"
	"synctv/server/internal/room"
	"synctv/server/internal/store"
	"synctv/server/internal/ws"
)

func main() {
	cfg, err := config.Load("")
	if err != nil {
		log.Fatalf("load config: %v", err)
	}

	ctx := context.Background()
	redisStore := store.NewRedis(cfg.Redis.Addr, cfg.Redis.Password, cfg.Redis.DB, time.Duration(cfg.Room.EmptyTTL))
	defer redisStore.Close()
	if err := redisStore.Ping(ctx); err != nil {
		log.Fatalf("connect redis: %v", err)
	}

	roomService := room.NewService(
		redisStore,
		cfg.Room.CodeLength,
		time.Duration(cfg.Room.EmptyTTL),
		time.Duration(cfg.Room.OwnerReconnectHold),
	)
	hub := ws.NewHub(
		roomService,
		cfg.HTTP.AllowedOrigins,
		time.Duration(cfg.WebSocket.PingInterval),
		time.Duration(cfg.WebSocket.PongTimeout),
		time.Duration(cfg.WebSocket.WriteTimeout),
	)
	streamProxy := proxy.New(
		roomService,
		cfg.Proxy.Enabled,
		time.Duration(cfg.Proxy.RequestTimeout),
		cfg.Proxy.MaxIdleConns,
		cfg.Proxy.ResponseHeaderBytes,
	)
	api := httpapi.New(roomService, hub, streamProxy)

	server := &http.Server{
		Addr:              cfg.HTTP.Addr,
		Handler:           api.Routes(),
		ReadHeaderTimeout: 5 * time.Second,
	}

	go func() {
		log.Printf("synctv server listening on %s", cfg.HTTP.Addr)
		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatalf("listen: %v", err)
		}
	}()

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

	shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()
	if err := server.Shutdown(shutdownCtx); err != nil {
		log.Printf("shutdown: %v", err)
	}
}