package main

import (
	"flag"
	"fmt"
	"net/http"
	"os"
)

func main() {
	var port string
	var dir string

	flag.StringVar(&port, "port", "8000", "the port of the HTTP file server")
	flag.StringVar(&dir, "dir", "", "the directory to serve files from (defaults to the current working directory)")
	flag.Parse()

	// If no directory is provided, use the current working directory
	if dir == "" {
		cwd, err := os.Getwd()
		if err != nil {
			fmt.Println("Error getting current working directory:", err)
			return
		}
		dir = cwd
	}

	fmt.Printf("Serving HTTP on 0.0.0.0 port %s from directory %s\n", port, dir)
	h := http.FileServer(http.Dir(dir))
	err := http.ListenAndServe(":"+port, h)
	if err != nil {
		fmt.Println("Error starting server:", err)
	}
}