use axum::extract::State;
use axum::routing::get;
use axum::{Json, Router};
use std::path::Path;
use walkdir::WalkDir;

pub fn create_frontend_api(assets_dir: &str) -> Router {
    Router::new().route(
        "/default-sounds",
        get(default_sounds).with_state(assets_dir.to_owned()),
    )
}

async fn default_sounds(State(ref assets_dir): State<String>) -> Json<Vec<String>> {
    let sounds_dir = &Path::new(assets_dir).join("sounds");
    let mut sounds = Vec::new();

    for entry in WalkDir::new(sounds_dir) {
        let Ok(entry) = entry else {
            continue;
        };

        if !entry.file_type().is_file() {
            continue;
        }

        let Ok(Some(entry)) = entry
                .path()
                .strip_prefix(sounds_dir)
                .map(|p| p.to_str())
                .map(|p| p.and_then(|pp| pp.strip_suffix(".mp3"))) else {
            continue;
        };

        sounds.push(entry.to_owned());
    }

    sounds.sort();

    Json(sounds)
}