use axum::{body::{to_bytes, Body}, http::{Request, StatusCode}};
use hermes_backend::{app_state::AppState, build_router, config::AppConfig};
use serde_json as json;
use tower::ServiceExt;

#[tokio::test]
async fn health_returns_ok() {
    let app = build_router(AppState::new(AppConfig::default(), None, None));

    let response = app
        .oneshot(Request::builder().uri("/health").body(Body::empty()).unwrap())
        .await
        .unwrap();

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

#[tokio::test]
async fn session_start_and_me_work() {
    let app = build_router(AppState::new(AppConfig::default(), None, None));

    let response = app
        .clone()
        .oneshot(
            Request::builder()
                .method("POST")
                .uri("/api/v1/session/start")
                .header("content-type", "application/json")
                .body(Body::from("{}"))
                .unwrap(),
        )
        .await
        .unwrap();

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

    let body = to_bytes(response.into_body(), usize::MAX).await.unwrap();
    let json: json::Value = json::from_slice(&body).unwrap();
    assert_eq!(json["locale_code"], "en");

    let response = app
        .oneshot(Request::builder().uri("/api/v1/session/me").body(Body::empty()).unwrap())
        .await
        .unwrap();

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

#[tokio::test]
async fn participant_ref_reuses_the_same_user() {
    let app = build_router(AppState::new(AppConfig::default(), None, None));

    let body = json::json!({
        "external_ref": "participant-001",
        "locale_code": "sv"
    })
    .to_string();

    let first = app
        .clone()
        .oneshot(
            Request::builder()
                .method("POST")
                .uri("/api/v1/session/start")
                .header("content-type", "application/json")
                .body(Body::from(body.clone()))
                .unwrap(),
        )
        .await
        .unwrap();

    let first_body = to_bytes(first.into_body(), usize::MAX).await.unwrap();
    let first_json: json::Value = json::from_slice(&first_body).unwrap();

    let second = app
        .oneshot(
            Request::builder()
                .method("POST")
                .uri("/api/v1/session/start")
                .header("content-type", "application/json")
                .body(Body::from(body))
                .unwrap(),
        )
        .await
        .unwrap();

    let second_body = to_bytes(second.into_body(), usize::MAX).await.unwrap();
    let second_json: json::Value = json::from_slice(&second_body).unwrap();

    assert_eq!(first_json["user_id"], second_json["user_id"]);
    assert_eq!(first_json["locale_code"], "sv");
}

#[tokio::test]
async fn feed_next_returns_a_manifestable_event() {
    let app = build_router(AppState::new(AppConfig::default(), None, None));

    let response = app
        .clone()
        .oneshot(Request::builder().uri("/api/v1/feed/next").body(Body::empty()).unwrap())
        .await
        .unwrap();

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

    let body = to_bytes(response.into_body(), usize::MAX).await.unwrap();
    let event: json::Value = json::from_slice(&body).unwrap();
    let event_id = event["id"].as_str().unwrap().to_string();

    assert_eq!(event["status"], "prefetch_ready");

    let response = app
        .clone()
        .oneshot(
            Request::builder()
                .uri(format!("/api/v1/events/{event_id}/manifest"))
                .body(Body::empty())
                .unwrap(),
        )
        .await
        .unwrap();

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

    let body = to_bytes(response.into_body(), usize::MAX).await.unwrap();
    let manifest: json::Value = json::from_slice(&body).unwrap();

    assert_eq!(manifest["event"]["id"], event_id);
    assert!(manifest["media"].as_array().unwrap().len() >= 1);
    assert!(manifest["markets"].as_array().unwrap().len() >= 1);
}