use clap::{Arg, Command};
use std::fs;
use std::io;
use std::path;
use std::path::Path;

fn create_file(path: &str) -> io::Result<()> {
    fs::File::create(path)?;
    println!("File '{}' created successfully.", path);
    Ok(())
}

fn main() {
    println!("Hello, world!");
    let matches = Command::new("File Manager CLI")
        .version("1.0")
        .author("Yu LinLing")
        .about("A simple file management tool")
        .subcommand(
            Command::new("create")
                .about("Create a file or dircetory")
                .arg(
                    Arg::new("path")
                        .help("Path to the file or directory")
                        .required(true)
                        .index(1),
                )
                .arg(
                    Arg::new("type")
                        .help("Type of entity to create file or dic")
                        .required(true)
                        .long("type")
                        .value_parser(clap::value_parser!(String))
                        .num_args(1),
                ),
        )
        .get_matches();

    if let Some(matches) = matches.subcommand_matches("create") {
        let path = matches.get_one::<String>("path").unwrap();
        let entity_type = matches.get_one::<String>("type").unwrap();

        if entity_type == "file" {
            if let Err(e) = create_file(path) {
                eprintln!("Error creating file: {}", e);
            }
        } else if entity_type == "dir" {
            if let Err(e) = create_file(path) {
                eprintln!("Error creating directory: {}", e);
            }
        } else {
            println!("Invalid type. Use 'file' or 'dir' ");
        }
    }
}