use rust_util::XResult;
use argparse::{ArgumentParser, StoreTrue, Store};

pub struct Options {
    pub version: bool,
    pub verbose: bool,
    pub config: String,
}

impl Options {
    pub fn new() -> Options {
        Options {
            version: false,
            verbose: false,
            config: "".to_string(),
        }
    }

    pub fn parse_args(&mut self) -> XResult<()> {
        {
            let mut ap = ArgumentParser::new();
            ap.set_description("oss_backupd - command line OSS backup tool.");
            ap.refer(&mut self.version).add_option(&["-V", "--version"], StoreTrue, "Print version");
            ap.refer(&mut self.verbose).add_option(&["-v", "--verbose"], StoreTrue, "Verbose");
            ap.refer(&mut self.config).add_option(&["-c", "--config"], Store, "Config file");
            ap.parse_args_or_exit();
        }
        
        Ok(())
    }

    pub fn new_and_parse_args() -> XResult<Options> {
        let mut options = Options::new();
        options.parse_args()?;
        Ok(options)
    }
}