package main

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

	"0451meishiditu/backend/internal/config"
	"0451meishiditu/backend/internal/db"
	"0451meishiditu/backend/internal/httpx"
	"0451meishiditu/backend/internal/logger"
	"0451meishiditu/backend/internal/migrate"
	"0451meishiditu/backend/internal/redisx"
	"0451meishiditu/backend/internal/settings"
	"0451meishiditu/backend/internal/seed"
)

func main() {
	cfg, err := config.Load()
	if err != nil {
		panic(err)
	}

	log := logger.New(cfg.AppEnv)
	defer func() { _ = log.Sync() }()

	gdb, err := db.Open(cfg, log)
	if err != nil {
		log.Fatal("open db failed", logger.Err(err))
	}

	rdb := redisx.New(cfg)

	if err := migrate.AutoMigrate(gdb); err != nil {
		log.Fatal("auto migrate failed", logger.Err(err))
	}

	if err := seed.EnsureInitialAdmin(gdb, cfg); err != nil {
		log.Fatal("seed admin failed", logger.Err(err))
	}

	st, err := settings.New(gdb, cfg)
	if err != nil {
		log.Fatal("settings init failed", logger.Err(err))
	}

	router := httpx.NewRouter(cfg, log, gdb, rdb, st)
	srv := &http.Server{
		Addr:              ":" + cfg.AppPort,
		Handler:           router,
		ReadTimeout:       15 * time.Second,
		ReadHeaderTimeout: 10 * time.Second,
		WriteTimeout:      30 * time.Second,
		IdleTimeout:       60 * time.Second,
	}

	go func() {
		log.Info("server started", logger.Str("addr", srv.Addr))
		if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
			log.Fatal("listen failed", logger.Err(err))
		}
	}()

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

	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()
	_ = srv.Shutdown(ctx)
	log.Info("server stopped")
}