//! erp-health 告警系统集成测试
//!
//! 验证告警规则 CRUD、引擎评估（阈值/连续/趋势）、告警状态流转、cooldown、租户隔离。

use erp_health::dto::alert_dto::*;
use erp_health::entity::{alert_rules, vital_signs_hourly};
use erp_health::service::{alert_engine, alert_rule_service, alert_service};
use sea_orm::ActiveValue::Set;
use sea_orm::ActiveModelTrait;

use super::test_fixture::TestApp;

/// 创建告警规则（单阈值）
async fn seed_threshold_rule(app: &TestApp, device_type: &str, threshold: f64) -> alert_rules::Model {
    alert_rule_service::create_rule(
        app.health_state(), app.tenant_id(), app.operator_id(),
        CreateAlertRuleRequest {
            name: "高收缩压".to_string(),
            description: Some("收缩压超过阈值".to_string()),
            device_type: device_type.to_string(),
            condition_type: "single_threshold".to_string(),
            condition_params: serde_json::json!({"direction": "above", "value": threshold}),
            severity: Some("warning".to_string()),
            apply_tags: None,
            notify_roles: None,
            cooldown_minutes: Some(60),
        },
    )
    .await
    .expect("创建规则应成功")
}

/// 插入一条 hourly 汇总记录
async fn seed_hourly(
    app: &TestApp, patient_id: uuid::Uuid, device_type: &str, avg_val: f64,
) {
    let model = vital_signs_hourly::ActiveModel {
        id: Set(uuid::Uuid::now_v7()),
        tenant_id: Set(app.tenant_id()),
        patient_id: Set(patient_id),
        device_type: Set(device_type.to_string()),
        hour_start: Set(chrono::Utc::now()),
        min_val: Set(Some(avg_val - 1.0)),
        max_val: Set(Some(avg_val + 1.0)),
        avg_val: Set(avg_val),
        sample_count: Set(1),
        created_at: Set(chrono::Utc::now()),
        updated_at: Set(chrono::Utc::now()),
        deleted_at: Set(None),
        version: Set(1),
    };
    model.insert(app.db()).await.expect("插入 hourly 应成功");
}

// ---------------------------------------------------------------------------
// 测试 1: 告警规则 CRUD — 创建 + 列表
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_alert_rule_create_and_list() {
    let app = TestApp::new().await;

    let rule = seed_threshold_rule(&app, "heart_rate", 140.0).await;
    assert_eq!(rule.name, "高收缩压");
    assert_eq!(rule.condition_type, "single_threshold");
    assert!(rule.is_active);

    let (rules, total) = alert_rule_service::list_rules(
        app.health_state(), app.tenant_id(), None, 1, 20,
    )
    .await
    .expect("列表应成功");
    assert_eq!(total, 1);
    assert_eq!(rules[0].id, rule.id);
}

// ---------------------------------------------------------------------------
// 测试 2: 告警规则停用
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_alert_rule_deactivate() {
    let app = TestApp::new().await;

    let rule = seed_threshold_rule(&app, "heart_rate", 140.0).await;
    assert!(rule.is_active);

    let deactivated = alert_rule_service::deactivate_rule(
        app.health_state(), app.tenant_id(), rule.id, rule.version,
    )
    .await
    .expect("停用应成功");
    assert!(!deactivated.is_active);
}

// ---------------------------------------------------------------------------
// 测试 3: 单阈值引擎评估 — 超阈值触发告警
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_alert_engine_single_threshold_trigger() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("阈值患者").await;

    seed_threshold_rule(&app, "heart_rate", 140.0).await;
    seed_hourly(&app, patient_id, "heart_rate", 155.0).await;

    let triggered = alert_engine::evaluate_rules(
        app.health_state(), app.tenant_id(), patient_id, "heart_rate",
    )
    .await
    .expect("评估应成功");

    assert_eq!(triggered.len(), 1);
    assert_eq!(triggered[0].status, "pending");
    assert_eq!(triggered[0].severity, "warning");
}

// ---------------------------------------------------------------------------
// 测试 4: 单阈值引擎评估 — 未超阈值不触发
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_alert_engine_single_threshold_no_trigger() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("正常患者").await;

    seed_threshold_rule(&app, "heart_rate", 140.0).await;
    seed_hourly(&app, patient_id, "heart_rate", 120.0).await;

    let triggered = alert_engine::evaluate_rules(
        app.health_state(), app.tenant_id(), patient_id, "heart_rate",
    )
    .await
    .expect("评估应成功");

    assert!(triggered.is_empty());
}

// ---------------------------------------------------------------------------
// 测试 5: cooldown — 重复评估不产生重复告警
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_alert_engine_cooldown_suppresses() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("冷却患者").await;

    seed_threshold_rule(&app, "heart_rate", 140.0).await;
    seed_hourly(&app, patient_id, "heart_rate", 160.0).await;

    let first = alert_engine::evaluate_rules(
        app.health_state(), app.tenant_id(), patient_id, "heart_rate",
    )
    .await
    .expect("首次评估应成功");
    assert_eq!(first.len(), 1);

    // 再次评估，cooldown 内不应重复
    let second = alert_engine::evaluate_rules(
        app.health_state(), app.tenant_id(), patient_id, "heart_rate",
    )
    .await
    .expect("二次评估应成功");
    assert!(second.is_empty(), "cooldown 内不应重复触发");
}

// ---------------------------------------------------------------------------
// 测试 6: 告警状态流转 — pending → acknowledged → resolved
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_alert_status_flow() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("流转患者").await;

    seed_threshold_rule(&app, "heart_rate", 140.0).await;
    seed_hourly(&app, patient_id, "heart_rate", 155.0).await;

    let triggered = alert_engine::evaluate_rules(
        app.health_state(), app.tenant_id(), patient_id, "heart_rate",
    )
    .await
    .unwrap();
    let alert = &triggered[0];
    assert_eq!(alert.status, "pending");

    // pending → acknowledged
    let acked = alert_service::acknowledge_alert(
        app.health_state(), app.tenant_id(), alert.id, app.operator_id(), alert.version,
    )
    .await
    .expect("确认应成功");
    assert_eq!(acked.status, "acknowledged");
    assert!(acked.acknowledged_by.is_some());

    // acknowledged → resolved
    let resolved = alert_service::resolve_alert(
        app.health_state(), app.tenant_id(), acked.id, acked.version,
    )
    .await
    .expect("解决应成功");
    assert_eq!(resolved.status, "resolved");
    assert!(resolved.resolved_at.is_some());
}

// ---------------------------------------------------------------------------
// 测试 7: 告警状态流转 — pending → dismissed
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_alert_dismiss_from_pending() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("忽略患者").await;

    seed_threshold_rule(&app, "heart_rate", 140.0).await;
    seed_hourly(&app, patient_id, "heart_rate", 155.0).await;

    let triggered = alert_engine::evaluate_rules(
        app.health_state(), app.tenant_id(), patient_id, "heart_rate",
    )
    .await
    .unwrap();
    let alert = &triggered[0];

    let dismissed = alert_service::dismiss_alert(
        app.health_state(), app.tenant_id(), alert.id, app.operator_id(), alert.version,
    )
    .await
    .expect("忽略应成功");
    assert_eq!(dismissed.status, "dismissed");
}

// ---------------------------------------------------------------------------
// 测试 8: 告警列表按患者过滤 + 租户隔离
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_alert_list_filter_and_tenant_isolation() {
    let app = TestApp::new().await;
    let patient_a = app.create_patient("过滤患者A").await;
    let patient_b = app.create_patient("过滤患者B").await;

    seed_threshold_rule(&app, "heart_rate", 140.0).await;
    seed_hourly(&app, patient_a, "heart_rate", 155.0).await;
    seed_hourly(&app, patient_b, "heart_rate", 160.0).await;

    alert_engine::evaluate_rules(
        app.health_state(), app.tenant_id(), patient_a, "heart_rate",
    )
    .await
    .unwrap();
    alert_engine::evaluate_rules(
        app.health_state(), app.tenant_id(), patient_b, "heart_rate",
    )
    .await
    .unwrap();

    // 按患者 A 过滤
    let (alerts_a, total_a) = alert_service::list_alerts(
        app.health_state(), app.tenant_id(), Some(patient_a), None, None, 1, 20,
    )
    .await
    .unwrap();
    assert_eq!(total_a, 1);
    assert_eq!(alerts_a[0].patient_id, patient_a);

    // 租户隔离
    let other_tenant = uuid::Uuid::new_v4();
    let (_alerts_other, total_other) = alert_service::list_alerts(
        app.health_state(), other_tenant, Some(patient_a), None, None, 1, 20,
    )
    .await
    .unwrap();
    assert_eq!(total_other, 0, "不同租户不应看到告警");
}