domasi/src/main.rs

use directories::ProjectDirs;
use domasi::Alert;
use domasi::Pomodoro;
use std::fs;
use std::path::PathBuf;

fn main() {
    let mut domasi: Pomodoro = Default::default();

    match get_alert() {
        Some(alert) => domasi.start_with_alert(alert),
        None => domasi.start(),
    }
}

fn get_alert() -> Option<Alert> {
    let alert_dir = ProjectDirs::from("moe", "paoda", "domasi")
        .unwrap()
        .data_dir()
        .to_path_buf()
        .join("alert");

    let file = find_alert_file(alert_dir)?;
    Some(Alert::new(file))
}

fn find_alert_file(path: PathBuf) -> Option<PathBuf> {
    let items = fs::read_dir(path).ok()?;

    for entry_result in items {
        if let Ok(entry) = entry_result {
            if let Some(ext) = entry.path().extension() {
                if let Some("mp3") | Some("wav") | Some("ogg") | Some("flac") = ext.to_str() {
                    return Some(entry.path());
                }
            }
        }
    }

    None
}