use axum::{
    extract::Path,
    http::{StatusCode, header},
    response::{IntoResponse, Response},
};

use crate::StaticFiles;

/// Serve embedded static files at /admin/static/*path
pub async fn serve_static(Path(path): Path<String>) -> Response {
    let file = match StaticFiles::get(&path) {
        Some(file) => file,
        None => return StatusCode::NOT_FOUND.into_response(),
    };

    let mime_type = mime_from_path(&path);

    (
        [
            (header::CONTENT_TYPE, mime_type),
            (header::CACHE_CONTROL, cache_control_value()),
        ],
        file.data.to_vec(),
    )
        .into_response()
}

fn mime_from_path(path: &str) -> &'static str {
    match path.rsplit('.').next() {
        Some("css") => "text/css; charset=utf-8",
        Some("js") => "application/javascript; charset=utf-8",
        Some("svg") => "image/svg+xml",
        Some("png") => "image/png",
        Some("jpg") | Some("jpeg") => "image/jpeg",
        _ => "application/octet-stream",
    }
}

fn cache_control_value() -> &'static str {
    if cfg!(debug_assertions) {
        "no-cache"
    } else {
        "public, max-age=3600, stale-while-revalidate=86400"
    }
}