use netrunner_control_plane::db::repository::{AppRepository, PgRepository};
use sqlx::{PgPool, Row};
use std::sync::Arc;

// =====================================================================
// ТЕСТ 1: Создание пользователя и пополнение баланса
// =====================================================================
// SQLx сам создаст чистую БД, сам накатит миграции и сам передаст сюда pool
#[sqlx::test]
async fn test_upsert_user_and_add_balance(pool: PgPool) {
    let repo = PgRepository::new(pool);

    let tg_id = 999111222;
    let user = repo
        .upsert_user(tg_id, Some("GhostRunner".into()))
        .await
        .unwrap();

    assert_eq!(user.balance, 0);

    repo.add_balance(user.id, 5000).await.unwrap();

    let updated_user = repo.get_user_by_id(user.id).await.unwrap().unwrap();
    assert_eq!(updated_user.balance, 5000);
}

// =====================================================================
// ТЕСТ 2: Использование билетов (Cyberhack)
// =====================================================================
#[sqlx::test]
async fn test_consume_ticket_and_reward(pool: PgPool) {
    let repo = PgRepository::new(pool.clone());
    let tg_id = 888777666;
    let user = repo.upsert_user(tg_id, None).await.unwrap();

    assert_eq!(user.game_tickets, 0);
    let reward_amount = 300;

    let err = repo
        .consume_ticket_and_reward(user.id, reward_amount)
        .await
        .unwrap_err();
    assert_eq!(err, "NO_TICKETS", "Нельзя играть без токенов доступа");

    let no_change_user = repo.get_user_by_id(user.id).await.unwrap().unwrap();
    assert_eq!(no_change_user.balance, 0);

    sqlx::query("UPDATE users SET game_tickets = 2 WHERE id = $1")
        .bind(user.id)
        .execute(&pool)
        .await
        .unwrap();

    let success_now = repo
        .consume_ticket_and_reward(user.id, reward_amount)
        .await
        .unwrap();
    assert!(success_now);

    let updated_user = repo.get_user_by_id(user.id).await.unwrap().unwrap();
    assert_eq!(updated_user.game_tickets, 1);
    assert_eq!(updated_user.balance, reward_amount);
}

// =====================================================================
// ТЕ==== ТЕСТ 3: Стресс-тест промокодов (Проверка блокировки FOR UPDATE)
// =====================================================================
#[sqlx::test]
async fn test_apply_promo_code_race_condition(pool: PgPool) {
    let repo = Arc::new(PgRepository::new(pool.clone()));

    let promo_code = "CYBER_RACE_2077";
    let reward_amount = 1500i64;

    sqlx::query(
        "INSERT INTO promo_codes (code, reward_amount, max_uses, current_uses) 
         VALUES ($1, $2, 1, 0)",
    )
    .bind(promo_code)
    .bind(reward_amount)
    .execute(&pool)
    .await
    .unwrap();

    let num_requests = 10;
    let mut handles = vec![];

    for i in 0..num_requests {
        let repo_clone = repo.clone();
        let code = promo_code.to_string();

        let handle = tokio::spawn(async move {
            let user = repo_clone.upsert_user(1000 + i, None).await.unwrap();
            repo_clone.apply_promo_code(user.id, &code).await
        });
        handles.push(handle);
    }

    let mut success_count = 0;
    let mut fail_count = 0;

    for handle in handles {
        let result = handle.await.unwrap();
        match result {
            Ok(reward) => {
                assert_eq!(reward, reward_amount);
                success_count += 1;
            }
            Err(e) => {
                assert!(e == "CODE_DEPLETED" || e == "ALREADY_USED");
                fail_count += 1;
            }
        }
    }

    assert_eq!(
        success_count, 1,
        "Блокировка FOR UPDATE должна пропустить только один поток"
    );
    assert_eq!(fail_count, num_requests - 1);

    let promo_record = sqlx::query("SELECT current_uses FROM promo_codes WHERE code = $1")
        .bind(promo_code)
        .fetch_one(&pool)
        .await
        .unwrap();

    let current_uses: i32 = promo_record.get("current_uses");
    assert_eq!(current_uses, 1);
}