//! erp-health 积分系统集成测试
//!
//! 验证积分赚取/消费 FIFO、签到、兑换、租户隔离等核心行为。
//! 使用 TestApp 创建隔离环境，直接调用 service 层函数。

use erp_health::dto::points_dto::*;
use erp_health::service::points_service;

use super::test_fixture::TestApp;

/// 创建测试用积分规则
async fn seed_rule(app: &TestApp, event_type: &str, points_value: i32) -> PointsRuleResp {
    let req = CreatePointsRuleReq {
        event_type: event_type.to_string(),
        name: format!("{}规则", event_type),
        description: None,
        points_value,
        daily_cap: 100,
        streak_7d_bonus: 10,
        streak_14d_bonus: 20,
        streak_30d_bonus: 50,
    };
    points_service::create_rule(app.health_state(), app.tenant_id(), Some(app.operator_id()), req)
        .await
        .expect("创建规则应成功")
}

/// 创建测试用商品（无限库存）
async fn seed_product(app: &TestApp, name: &str, points_cost: i32) -> PointsProductResp {
    let req = CreatePointsProductReq {
        name: name.to_string(),
        product_type: Some("virtual".to_string()),
        points_cost,
        stock: Some(-1),
        image_url: None,
        description: None,
        service_config: None,
        sort_order: None,
    };
    points_service::create_product(app.health_state(), app.tenant_id(), Some(app.operator_id()), req)
        .await
        .expect("创建商品应成功")
}

// ---------------------------------------------------------------------------
// 测试 1: 签到积分 — 首次签到成功
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_earn_sign_in() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("签到患者").await;
    seed_rule(&app, "daily_checkin", 5).await;

    // 首次签到
    let result = points_service::daily_checkin(
        app.health_state(), app.tenant_id(), patient_id, Some(app.operator_id()),
    )
    .await
    .expect("签到应成功");
    assert!(result.checked_in_today);

    // 验证积分到账
    let account = points_service::get_account(app.health_state(), app.tenant_id(), patient_id)
        .await
        .expect("查询账户应成功");
    assert_eq!(account.balance, 5);
    assert_eq!(account.total_earned, 5);
}

// ---------------------------------------------------------------------------
// 测试 2: 自定义积分增加
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_earn_custom() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("自定义积分患者").await;
    seed_rule(&app, "custom_event", 20).await;

    let tx = points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "custom_event", Some(app.operator_id()),
    )
    .await
    .expect("赚取积分应成功");

    assert_eq!(tx.amount, 20);
    assert_eq!(tx.remaining_amount, 20);
    assert_eq!(tx.transaction_type, "earn");
}

// ---------------------------------------------------------------------------
// 测试 3: FIFO 消费 — 先消耗最早的积分记录
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_consume_fifo_deduction() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("FIFO患者").await;
    seed_rule(&app, "earn_a", 10).await;
    seed_rule(&app, "earn_b", 30).await;
    let product = seed_product(&app, "测试商品", 25).await;

    // 赚两笔: 10 + 30 = 40
    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "earn_a", Some(app.operator_id()),
    )
    .await
    .unwrap();
    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "earn_b", Some(app.operator_id()),
    )
    .await
    .unwrap();

    // 消费 25: FIFO 先消耗第一笔 10（全部用完），再从第二笔消耗 15（剩 15）
    let order = points_service::exchange_product(
        app.health_state(), app.tenant_id(), patient_id,
        ExchangeReq { product_id: product.id },
        Some(app.operator_id()),
    )
    .await
    .expect("兑换应成功");

    assert_eq!(order.points_cost, 25);
    assert_eq!(order.status, "pending");

    // 验证余额: 40 - 25 = 15
    let account = points_service::get_account(app.health_state(), app.tenant_id(), patient_id)
        .await
        .unwrap();
    assert_eq!(account.balance, 15);
}

// ---------------------------------------------------------------------------
// 测试 4: 余额不足时返回错误
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_consume_balance_insufficient() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("余额不足患者").await;
    seed_rule(&app, "small_earn", 5).await;
    let product = seed_product(&app, "贵重商品", 100).await;

    // 只赚 5 分
    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "small_earn", Some(app.operator_id()),
    )
    .await
    .unwrap();

    // 消费 100 应失败
    let result = points_service::exchange_product(
        app.health_state(), app.tenant_id(), patient_id,
        ExchangeReq { product_id: product.id },
        Some(app.operator_id()),
    )
    .await;

    assert!(result.is_err(), "余额不足应返回错误");
}

// ---------------------------------------------------------------------------
// 测试 5: 消费金额等于余额（精确消费）
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_consume_exact_balance() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("精确消费患者").await;
    seed_rule(&app, "exact_earn", 50).await;
    let product = seed_product(&app, "等价商品", 50).await;

    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "exact_earn", Some(app.operator_id()),
    )
    .await
    .unwrap();

    let _order = points_service::exchange_product(
        app.health_state(), app.tenant_id(), patient_id,
        ExchangeReq { product_id: product.id },
        Some(app.operator_id()),
    )
    .await
    .expect("精确消费应成功");

    let account = points_service::get_account(app.health_state(), app.tenant_id(), patient_id)
        .await
        .unwrap();
    assert_eq!(account.balance, 0);
}

// ---------------------------------------------------------------------------
// 测试 6: 消费金额小于单条记录，正确拆分
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_consume_partial() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("部分消费患者").await;
    seed_rule(&app, "big_earn", 100).await;
    let product = seed_product(&app, "小商品", 30).await;

    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "big_earn", Some(app.operator_id()),
    )
    .await
    .unwrap();

    let _order = points_service::exchange_product(
        app.health_state(), app.tenant_id(), patient_id,
        ExchangeReq { product_id: product.id },
        Some(app.operator_id()),
    )
    .await
    .expect("部分消费应成功");

    let account = points_service::get_account(app.health_state(), app.tenant_id(), patient_id)
        .await
        .unwrap();
    assert_eq!(account.balance, 70);
}

// ---------------------------------------------------------------------------
// 测试 7: 首次获取积分时自动创建账户
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_account_create_on_first_earn() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("新账户患者").await;
    seed_rule(&app, "first_earn", 10).await;

    // earn_points 应自动创建账户
    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "first_earn", Some(app.operator_id()),
    )
    .await
    .unwrap();

    let account = points_service::get_account(app.health_state(), app.tenant_id(), patient_id)
        .await
        .expect("账户应已自动创建");
    assert_eq!(account.balance, 10);
    assert_eq!(account.patient_id, patient_id);
}

// ---------------------------------------------------------------------------
// 测试 8: 连续签到奖励
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_checkin_streak() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("连续签到患者").await;
    seed_rule(&app, "daily_checkin", 5).await;

    // 连续签到 3 天验证 consecutive_days 递增
    let status = points_service::get_checkin_status(
        app.health_state(), app.tenant_id(), patient_id,
    )
    .await
    .expect("查询签到状态应成功");
    assert!(!status.checked_in_today);
    assert_eq!(status.consecutive_days, 0);

    // 第 1 天签到
    let result = points_service::daily_checkin(
        app.health_state(), app.tenant_id(), patient_id, Some(app.operator_id()),
    )
    .await
    .unwrap();
    assert!(result.checked_in_today);
    assert_eq!(result.consecutive_days, 1);
}

// ---------------------------------------------------------------------------
// 测试 9: 积分兑换商品 — 创建订单
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_order_create() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("兑换患者").await;
    seed_rule(&app, "order_earn", 100).await;
    let product = seed_product(&app, "兑换商品", 50).await;

    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "order_earn", Some(app.operator_id()),
    )
    .await
    .unwrap();

    let order = points_service::exchange_product(
        app.health_state(), app.tenant_id(), patient_id,
        ExchangeReq { product_id: product.id },
        Some(app.operator_id()),
    )
    .await
    .expect("创建订单应成功");

    assert_eq!(order.status, "pending");
    assert_eq!(order.points_cost, 50);
    assert!(order.qr_code.is_some());
}

// ---------------------------------------------------------------------------
// 测试 10: 积分不足时订单失败
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_order_insufficient_cancel() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("不足兑换患者").await;
    seed_rule(&app, "tiny_earn", 1).await;
    let product = seed_product(&app, "昂贵商品", 999).await;

    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "tiny_earn", Some(app.operator_id()),
    )
    .await
    .unwrap();

    let result = points_service::exchange_product(
        app.health_state(), app.tenant_id(), patient_id,
        ExchangeReq { product_id: product.id },
        Some(app.operator_id()),
    )
    .await;

    assert!(result.is_err(), "积分不足兑换应失败");
}

// ---------------------------------------------------------------------------
// 测试 11: 交易记录查询
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_transaction_history() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("记录查询患者").await;
    seed_rule(&app, "history_earn", 10).await;

    // 赚两笔
    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "history_earn", Some(app.operator_id()),
    )
    .await
    .unwrap();
    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_id, "history_earn", Some(app.operator_id()),
    )
    .await
    .unwrap();

    let history = points_service::list_transactions(
        app.health_state(), app.tenant_id(), patient_id, 1, 20,
    )
    .await
    .expect("查询记录应成功");

    assert_eq!(history.total, 2);
    assert_eq!(history.data.len(), 2);
}

// ---------------------------------------------------------------------------
// 测试 12: 租户隔离 — A 的积分 B 看不到
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_points_tenant_isolation() {
    let app = TestApp::new().await;
    let patient_a = app.create_patient("租户A患者").await;
    seed_rule(&app, "iso_earn", 50).await;

    points_service::earn_points(
        app.health_state(), app.tenant_id(), patient_a, "iso_earn", Some(app.operator_id()),
    )
    .await
    .unwrap();

    // 用不同 tenant_id 查询应找不到账户
    let other_tenant = uuid::Uuid::new_v4();
    let result = points_service::get_account(app.health_state(), other_tenant, patient_a).await;
    // 不同租户应无法获取（返回错误或空账户）
    // 实现可能是返回新建的空账户，取决于 get_account 行为
    if let Ok(account) = result {
        assert_eq!(account.balance, 0, "不同租户应看到独立账户");
    }
}