use std::ffi::OsString;

use lexopt::prelude::*;

#[derive(Debug, Default)]
pub struct Args {
    version: bool,
    clear_screen: bool,
    foreground: Option<OsString>,
    autodecrypt: bool,
    mask_blanks: bool,
}

pub fn parse_arguments() -> Result<Args, lexopt::Error> {
    let mut parser = lexopt::Parser::from_env();

    let mut args = Args::default();

    while let Some(arg) = parser.next()? {
        match arg {
            Short('a') => {
                args.autodecrypt = true;
            }
            Short('c') => {
                args.clear_screen = true;
            }
            Short('f') => {
                let foreground = parser.value()?;
                args.foreground = Some(foreground);
            }
            Short('s') => {
                args.mask_blanks = true;
            }
            Short('v') => {
                args.version = true;
            }
            _ => return Err(arg.unexpected()),
        }
    }

    Ok(args)
}