extern crate parg;

use parg::create_cli_arguments;
use parg::Arg;
use parg::CliArguments;
use parg::Type;

fn main() {
    // create the required argument --threshold <u8 value>
    let threshold = Arg::with_value("threshold", Type::ReadAsU8, true);
    threshold.set_description("a little description for the argument");

    let path = Arg::with_value("path", Type::ReadAsString, true);

    // create the cli with arguments
    let cli: CliArguments = create_cli_arguments!(&path, &threshold);
    // set the name and description to print in usage
    cli.set_info("my_command", "The description");

    // check if any error occured
    if let Err(msg) = cli.parse() {
        eprintln!("{}", msg);
        return;
    }

    // get threshold value
    let threshold_value: u8 = cli.get_value(&*threshold.get_name());
    println!("threshold = {}", threshold_value);
    // OR
    let threshold_value: u8 = cli.get_value("threshold");
    println!("threshold = {}", threshold_value);
    // As threshold is u8, the following will panic
    #[allow(unused_variables)]
    let threshold_value: u16 = cli.get_value("threshold");
}