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use axum::{http::Uri, response::IntoResponse, routing::get};

use crate::state::AppState;

pub mod error;
pub mod users;

pub fn router() -> axum::Router<AppState> {
    axum::Router::new()
        .merge(users::router())
        .route("/healthcheck", get(healthcheck))
        .fallback(fallback)
}

pub async fn healthcheck() -> impl IntoResponse {
    "success"
}

pub async fn fallback(uri: Uri) -> impl IntoResponse {
    self::error::Error::RouteNotFound(uri)
}

#[cfg(test)]
mod tests {
    use crate::tests::{setup_test_env, TestResult};

    use super::*;

    use axum::{
        body::Body,
        http::{Request, StatusCode},
        Router,
    };
    use sqlx::PgPool;
    use tower::ServiceExt;

    #[sqlx::test]
    async fn test_healthcheck_ok(pool: PgPool) -> TestResult {
        setup_test_env();

        let router = Router::new().merge(router()).with_state(AppState { pool });

        let request = Request::builder().uri("/healthcheck").body(Body::empty())?;

        let response = router.oneshot(request).await?;

        assert_eq!(StatusCode::OK, response.status());

        Ok(())
    }

    #[sqlx::test]
    async fn test_fallback_not_found(pool: PgPool) -> TestResult {
        setup_test_env();

        let router = Router::new().merge(router()).with_state(AppState { pool });

        let request = Request::builder()
            .uri("/does-not-exist")
            .body(Body::empty())?;

        let response = router.oneshot(request).await?;

        assert_eq!(StatusCode::NOT_FOUND, response.status());

        Ok(())
    }
}