pub struct Args {
    pub ip: String,
    pub port: u16,
    pub unsafe_mode: bool,
}

pub fn parse_args() -> Args {
    let args: Vec<String> = std::env::args().collect();
    let mut ip = "127.0.0.1".to_string();
    let mut port = 11525;
    let mut unsafe_mode = false;
    let mut i = 1;
    while i < args.len() {
        if args[i] == "-p" {
            if i + 1 < args.len() {
                port = args[i + 1].parse::<u16>().unwrap_or_else(|_| {
                    eprintln!("Invalid port number: {}", args[i + 1]);
                    std::process::exit(1);
                });
                i += 2;
            } else {
                eprintln!("-p requires a port number");
                std::process::exit(1);
            }
        } else if args[i] == "-i" {
            if i + 1 < args.len() {
                ip = args[i + 1].clone();
                if ip != "127.0.0.1" && ip != "0.0.0.0" {
                    eprintln!("Invalid IP address: {}. Must be 127.0.0.1 or 0.0.0.0", ip);
                    std::process::exit(1);
                }
                i += 2;
            } else {
                eprintln!("-i requires an IP address");
                std::process::exit(1);
            }
        } else if args[i] == "--unsafe" {
            unsafe_mode = true;
            i += 1;
        } else {
            eprintln!("Unknown argument: {}", args[i]);
            std::process::exit(1);
        }
    }
    Args {
        ip,
        port,
        unsafe_mode,
    }
}