use axum::{
    extract::Path,
    http::StatusCode,
    response::{IntoResponse, Json},
};
use serde_json::json;
use std::path::PathBuf;

use crate::download::storage;

pub async fn list_uploaded_files(Path(user_id): Path<String>) -> impl IntoResponse {
    let file_list = storage::scan_uploaded_files(&user_id);
    (StatusCode::OK, Json(file_list))
}

pub async fn get_file_info(Path((user_id, filename)): Path<(String, String)>) -> impl IntoResponse {
    let base_path = format!("/Users/accusys/Downloads/{}", user_id);
    let file_path = PathBuf::from(&base_path).join(&filename);

    if !file_path.exists() {
        return (
            StatusCode::NOT_FOUND,
            Json(json!({"error": "File not found"})),
        )
            .into_response();
    }

    let metadata = std::fs::metadata(&file_path).unwrap();
    let file_size = metadata.len();
    let file_hash = if file_size > 0 {
        storage::compute_file_hash(&file_path).ok()
    } else {
        Some("e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855".to_string())
    };

    (
        StatusCode::OK,
        Json(json!({
            "filename": filename,
            "file_size": file_size,
            "file_hash": file_hash,
            "file_path": file_path.to_string_lossy(),
            "user_id": user_id
        })),
    )
        .into_response()
}