package main

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

	"github.com/benya/temporserv/internal/config"
	"github.com/benya/temporserv/internal/db"
	"github.com/benya/temporserv/internal/httpapi"
	"github.com/benya/temporserv/internal/scanner"
)

func main() {
	cfg := config.Load()
	ctx := context.Background()

	database, err := db.Open(ctx, cfg)
	if err != nil {
		log.Fatalf("database bootstrap failed: %v", err)
	}
	defer database.Close()

	if err := db.Migrate(ctx, database); err != nil {
		log.Fatalf("database migrations failed: %v", err)
	}

	if err := db.Seed(ctx, database, cfg); err != nil {
		log.Fatalf("database seed failed: %v", err)
	}

	scanService := scanner.NewService(database, cfg.MediaRoot, cfg.ArtworkCacheDir)
	if scanService.HasMediaFiles() {
		if result, err := scanService.Scan(ctx); err != nil {
			log.Printf("startup scan failed: %v", err)
		} else {
			log.Printf("startup scan completed: artists=%d albums=%d tracks=%d", result.Artists, result.Albums, result.Tracks)
		}
	}

	handler := httpapi.NewRouter(cfg, database, scanService)

	server := &http.Server{
		Addr:              cfg.Address(),
		Handler:           handler,
		ReadHeaderTimeout: 10 * time.Second,
	}

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

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

	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()

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