package cmd

import (
	"context"
	"fmt"
	"os"
	"os/signal"
	"syscall"

	"github.com/spf13/cobra"

	"github.com/dhao2001/mygo/internal/app"
	"github.com/dhao2001/mygo/internal/config"
	"github.com/dhao2001/mygo/internal/server"
)

var serveConfigFile string

var serveCmd = &cobra.Command{
	Use:   "serve",
	Short: "Start the MyGO HTTP server",
	RunE: func(cmd *cobra.Command, args []string) error {
		v := config.New()
		cfg, err := config.Load(v, serveConfigFile)
		if err != nil {
			return fmt.Errorf("load config: %w", err)
		}

		ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
		defer stop()

		webApp, err := app.Bootstrap(cfg)
		if err != nil {
			return fmt.Errorf("bootstrap: %w", err)
		}
		defer func() {
			if err := webApp.Close(); err != nil {
				fmt.Fprintf(os.Stderr, "close webapp: %v\n", err)
			}
		}()

		router := server.NewRouter(webApp)
		addr := server.Address(webApp.Config.Server)

		return server.RunWithGracefulShutdown(ctx, addr, router)
	},
}

func init() {
	serveCmd.Flags().StringVar(&serveConfigFile, "config", "", "config file path")
	rootCmd.AddCommand(serveCmd)
}