pub mod callers;
pub mod config;
pub mod db;
pub mod hashing;
pub mod repo;
pub mod token_stuff;

pub mod init {
    use axum::{
        Router,
        routing::{get, patch, post},
    };
    use utoipa::OpenApi;

    use super::callers;
    use callers::common as common_callers;
    use callers::login as login_caller;
    use callers::register as register_caller;
    use login_caller::response as login_responses;
    use register_caller::response as register_responses;

    #[derive(utoipa::OpenApi)]
    #[openapi(
        paths(
            common_callers::endpoint::db_ping, common_callers::endpoint::root,
            register_caller::register_user, login_caller::user_login,
            login_caller::get_user_profile,
            ),
        components(schemas(common_callers::response::TestResult,
                register_responses::Response, login_responses::LoginResponse,
            login_responses::GetUserProfileResponse,
        )),
        tags(
            (name = "TextSender Auth API", description = "Auth API for TextSender API")
            )
    )]
    struct ApiDoc;

    mod cors {
        pub async fn configure_cors() -> tower_http::cors::CorsLayer {
            // Start building the CORS layer with common settings
            let cors = tower_http::cors::CorsLayer::new()
                .allow_methods([
                    axum::http::Method::GET,
                    axum::http::Method::PATCH,
                    axum::http::Method::POST,
                    axum::http::Method::PUT,
                    axum::http::Method::DELETE,
                ]) // Specify allowed methods:cite[2]
                .allow_headers([
                    axum::http::header::CONTENT_TYPE,
                    axum::http::header::AUTHORIZATION,
                ]) // Specify allowed headers:cite[2]
                .allow_credentials(true) // If you need to send cookies or authentication headers:cite[2]
                .max_age(std::time::Duration::from_secs(3600)); // Cache the preflight response for 1 hour:cite[2]

            // Dynamically set the allowed origin based on the environment
            match std::env::var(textsender_models::envy::keys::APP_ENV).as_deref() {
                Ok("production") => {
                    let allowed_origins_env =
                        textsender_models::envy::environment::get_allowed_origins().await;
                    match textsender_models::envy::utility::delimitize(&allowed_origins_env) {
                        Ok(alwd) => {
                            let allowed_origins: Vec<axum::http::HeaderValue> = alwd
                                .into_iter()
                                .map(|s| s.parse::<axum::http::HeaderValue>().unwrap())
                                .collect();
                            cors.allow_origin(allowed_origins)
                        }
                        Err(err) => {
                            eprintln!(
                                "Could not parse out allowed origins from env: Error: {err:?}"
                            );
                            std::process::exit(-1);
                        }
                    }
                }
                _ => {
                    // Development (default): Allow localhost origins
                    cors.allow_origin(vec![
                        "http://localhost:4200".parse().unwrap(),
                        "http://127.0.0.1:4200".parse().unwrap(),
                        "http://localhost:5173".parse().unwrap(),
                        "http://127.0.0.1:5173".parse().unwrap(),
                        "http://localhost:9080".parse().unwrap(),
                        "http://127.0.0.1:9080".parse().unwrap(),
                        "http://localhost:9081".parse().unwrap(),
                        "http://127.0.0.1:9081".parse().unwrap(),
                    ])
                }
            }
        }
    }

    pub async fn routes() -> Router {
        // build our application with a route
        Router::new()
            .route(
                callers::endpoints::DBTEST,
                get(callers::common::endpoint::db_ping),
            )
            .route(
                callers::endpoints::ROOT,
                get(callers::common::endpoint::root),
            )
            .route(
                callers::endpoints::REGISTER,
                post(callers::register::register_user),
            )
            .route(
                callers::endpoints::REGISTER_SERVICE_USER,
                post(callers::register::register_service_user),
            )
            .route(callers::endpoints::LOGIN, post(callers::login::user_login))
            .route(
                callers::endpoints::LOGIN_SERVICE_USER,
                post(callers::login::service_user_login),
            )
            .route(
                callers::endpoints::REFRESH_TOKEN,
                post(callers::login::refresh_token),
            )
            .route(
                callers::endpoints::UPDATE_PASSWORD,
                patch(callers::login::update_password),
            )
            .route(
                callers::endpoints::UPDATE_USER_NAME,
                patch(callers::login::update_name_of_user),
            )
            .route(
                callers::endpoints::GET_USER_PROFILE,
                patch(callers::login::get_user_profile),
            )
            .layer(cors::configure_cors().await)
    }

    pub async fn app() -> Router {
        let pool = super::db::init::create_pool()
            .await
            .expect("Failed to create pool");

        super::db::init::migrations(&pool).await;

        routes()
            .await
            .merge(
                utoipa_swagger_ui::SwaggerUi::new("/swagger-ui")
                    .url("/api-docs/openapi.json", ApiDoc::openapi()),
            )
            .layer(axum::Extension(pool))
    }
}