mod handlers;

use axum::{
    routing::{get, post},
    Router,
};
use tower_http::cors::{Any, CorsLayer};
use sqlx::postgres::PgPoolOptions;
use std::net::SocketAddr;
use dotenvy::dotenv;
use std::env;

#[tokio::main]
async fn main() {
    dotenv().ok();
    tracing_subscriber::fmt::init();

    let db_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
    let pool = PgPoolOptions::new()
        .max_connections(5)
        .connect(&db_url)
        .await
        .expect("Failed to connect to database");

    // Run migrations automatically
    sqlx::migrate!("./migrations")
        .run(&pool)
        .await
        .expect("Failed to run migrations");

    let cors = CorsLayer::new()
        .allow_origin(Any)
        .allow_methods(Any)
        .allow_headers(Any);

    let app = Router::new()
        .route("/catalog", get(handlers::get_course_catalog))
        .route("/enroll", post(handlers::enroll_user))
        .route("/ingest", post(handlers::ingest_course))
        .route("/auth/register", post(handlers::register))
        .route("/auth/login", post(handlers::login))
        .route("/enrollments/{id}", get(handlers::get_user_enrollments))
        .route("/courses/{id}/outline", get(handlers::get_course_outline))
        .route("/lessons/{id}", get(handlers::get_lesson_content))
        .route("/grades", post(handlers::submit_lesson_score))
        .route("/users/{user_id}/courses/{course_id}/grades", get(handlers::get_user_course_grades))
        .layer(cors)
        .with_state(pool);

    let addr = SocketAddr::from(([0, 0, 0, 0], 3002));
    tracing::info!("LMS Service listening on {}", addr);
    let listener = tokio::net::TcpListener::bind(addr).await.unwrap();
    axum::serve(listener, app).await.unwrap();
}