package main

import (
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"
	"path/filepath"
	"syscall"

	"github.com/inou-ai/messaging-center/internal/api"
	"github.com/inou-ai/messaging-center/internal/core"
	"github.com/inou-ai/messaging-center/internal/store"
)

func main() {
	configPath := flag.String("config", "config.yaml", "Path to config file")
	flag.Parse()

	// Load configuration
	cfg, err := core.LoadConfig(*configPath)
	if err != nil {
		log.Fatalf("Failed to load config: %v", err)
	}

	// Ensure storage directory exists
	if err := os.MkdirAll(cfg.Storage.Path, 0755); err != nil {
		log.Fatalf("Failed to create storage directory: %v", err)
	}

	// Ensure database directory exists
	dbDir := filepath.Dir(cfg.Database.Path)
	if dbDir != "." && dbDir != "" {
		if err := os.MkdirAll(dbDir, 0755); err != nil {
			log.Fatalf("Failed to create database directory: %v", err)
		}
	}

	// Initialize store
	store, err := store.New(cfg.Database.Path)
	if err != nil {
		log.Fatalf("Failed to initialize store: %v", err)
	}
	defer store.Close()

	// Create API server
	srv := api.NewServer(cfg, store)

	// Start HTTP server
	addr := fmt.Sprintf("%s:%d", cfg.Server.Host, cfg.Server.Port)
	httpServer := &http.Server{
		Addr:    addr,
		Handler: srv,
	}

	// Handle shutdown
	done := make(chan os.Signal, 1)
	signal.Notify(done, os.Interrupt, syscall.SIGTERM)

	go func() {
		log.Printf("Starting messaging-center on %s", addr)
		if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatalf("HTTP server error: %v", err)
		}
	}()

	<-done
	log.Println("Shutting down...")
}