package cmd

import (
	"fmt"
	"log"
	"net/http"
	"os"
	"path/filepath"

	"github.com/spf13/cobra"
)

// serverCmd represents the server command
var serverCmd = &cobra.Command{
	Use:   "server [directory]",
	Short: "Start a simple HTTP server to serve files from the specified directory",
	Long: `Start a simple HTTP server to serve files from the specified directory.
If no directory is provided, the current directory is used by default.

You can specify the port number using the --port (-p) flag. If not provided, the default port is 8080.`,
	Args: cobra.MaximumNArgs(1),
	Run: func(cmd *cobra.Command, args []string) {
		var directory string
		if len(args) == 1 {
			directory = args[0]
		} else {
			directory, _ = os.Getwd()
		}

		directory, err := filepath.Abs(directory)
		if err != nil {
			log.Fatalf("Error getting absolute path: %v", err)
		}

		port, err := cmd.Flags().GetInt("port")
		if err != nil {
			log.Fatalf("Error getting port number: %v", err)
		}

		addr := fmt.Sprintf(":%d", port)

		fmt.Printf("Starting HTTP server for directory: %s\n", directory)
		http.Handle("/", http.FileServer(http.Dir(directory)))
		fmt.Printf("Server listening on %s\n", addr)
		if err := http.ListenAndServe(addr, nil); err != nil {
			log.Fatalf("Error starting HTTP server: %v", err)
		}
	},
}

func init() {
	rootCmd.AddCommand(serverCmd)
	serverCmd.Flags().IntP("port", "p", 8080, "Port number for the HTTP server")
}