//! erp-health 用药记录集成测试
//!
//! 验证用药记录 CRUD、列表按患者过滤、租户隔离、乐观锁。

use erp_health::dto::medication_record_dto::*;
use erp_health::service::medication_record_service;

use super::test_fixture::TestApp;

fn default_create_medication_req(patient_id: uuid::Uuid) -> CreateMedicationRecordReq {
    CreateMedicationRecordReq {
        patient_id,
        medication_name: "缬沙坦".to_string(),
        generic_name: Some("Valsartan".to_string()),
        dosage: Some("80mg".to_string()),
        unit: Some("mg".to_string()),
        frequency: Some("daily".to_string()),
        route: Some("oral".to_string()),
        start_date: chrono::NaiveDate::from_ymd_opt(2026, 1, 1),
        end_date: None,
        is_current: Some(true),
        prescribed_by: None,
        notes: None,
    }
}

async fn seed_medication(app: &TestApp, patient_id: uuid::Uuid) -> MedicationRecordResp {
    medication_record_service::create_medication(
        app.health_state(), app.tenant_id(), Some(app.operator_id()),
        default_create_medication_req(patient_id),
    )
    .await
    .expect("创建用药记录应成功")
}

// ---------------------------------------------------------------------------
// 测试 1: 创建用药记录
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_medication_create() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("用药患者").await;

    let med = seed_medication(&app, patient_id).await;

    assert_eq!(med.patient_id, patient_id);
    assert_eq!(med.medication_name, "缬沙坦");
    assert_eq!(med.frequency, Some("daily".to_string()));
    assert!(med.is_current);
    assert_eq!(med.version, 1);
}

// ---------------------------------------------------------------------------
// 测试 2: 查询用药记录
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_medication_get() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("用药查询患者").await;
    let med = seed_medication(&app, patient_id).await;

    let fetched = medication_record_service::get_medication(
        app.health_state(), app.tenant_id(), med.id,
    )
    .await
    .expect("查询应成功");
    assert_eq!(fetched.id, med.id);
    assert_eq!(fetched.medication_name, "缬沙坦");
}

// ---------------------------------------------------------------------------
// 测试 3: 更新用药记录
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_medication_update() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("用药更新患者").await;
    let med = seed_medication(&app, patient_id).await;

    let updated = medication_record_service::update_medication(
        app.health_state(), app.tenant_id(), med.id,
        Some(app.operator_id()),
        UpdateMedicationRecordReq {
            dosage: Some("160mg".to_string()),
            is_current: Some(false),
            medication_name: None, generic_name: None, unit: None,
            frequency: None, route: None, start_date: None,
            end_date: None, prescribed_by: None, notes: None,
        },
        med.version,
    )
    .await
    .expect("更新应成功");

    assert_eq!(updated.dosage, Some("160mg".to_string()));
    assert!(!updated.is_current);
    assert_eq!(updated.version, 2);
}

// ---------------------------------------------------------------------------
// 测试 4: 列表按患者过滤
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_medication_list_by_patient() {
    let app = TestApp::new().await;
    let patient_a = app.create_patient("用药列表A").await;
    let patient_b = app.create_patient("用药列表B").await;

    seed_medication(&app, patient_a).await;
    seed_medication(&app, patient_b).await;

    let list_a = medication_record_service::list_medications(
        app.health_state(), app.tenant_id(), patient_a, 1, 20,
    )
    .await
    .unwrap();
    assert_eq!(list_a.total, 1);

    let list_b = medication_record_service::list_medications(
        app.health_state(), app.tenant_id(), patient_b, 1, 20,
    )
    .await
    .unwrap();
    assert_eq!(list_b.total, 1);
}

// ---------------------------------------------------------------------------
// 测试 5: 软删除
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_medication_soft_delete() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("用药删除患者").await;
    let med = seed_medication(&app, patient_id).await;

    medication_record_service::delete_medication(
        app.health_state(), app.tenant_id(), med.id,
        Some(app.operator_id()), med.version,
    )
    .await
    .expect("删除应成功");

    let result = medication_record_service::get_medication(
        app.health_state(), app.tenant_id(), med.id,
    )
    .await;
    assert!(result.is_err(), "软删除后查询应失败");
}

// ---------------------------------------------------------------------------
// 测试 6: 租户隔离
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_medication_tenant_isolation() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("用药隔离患者").await;
    seed_medication(&app, patient_id).await;

    let other_tenant = uuid::Uuid::new_v4();
    let list = medication_record_service::list_medications(
        app.health_state(), other_tenant, patient_id, 1, 20,
    )
    .await
    .unwrap();
    assert_eq!(list.total, 0, "不同租户不应看到用药记录");
}

// ---------------------------------------------------------------------------
// 测试 7: 乐观锁冲突
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_medication_version_conflict() {
    let app = TestApp::new().await;
    let patient_id = app.create_patient("用药锁患者").await;
    let med = seed_medication(&app, patient_id).await;

    // 先更新一次
    medication_record_service::update_medication(
        app.health_state(), app.tenant_id(), med.id,
        Some(app.operator_id()),
        UpdateMedicationRecordReq {
            dosage: Some("160mg".to_string()),
            medication_name: None, generic_name: None, unit: None,
            frequency: None, route: None, start_date: None,
            end_date: None, is_current: None, prescribed_by: None, notes: None,
        },
        med.version,
    )
    .await
    .unwrap();

    // 用旧 version 再更新应失败
    let result = medication_record_service::update_medication(
        app.health_state(), app.tenant_id(), med.id,
        Some(app.operator_id()),
        UpdateMedicationRecordReq {
            dosage: Some("320mg".to_string()),
            medication_name: None, generic_name: None, unit: None,
            frequency: None, route: None, start_date: None,
            end_date: None, is_current: None, prescribed_by: None, notes: None,
        },
        med.version,
    )
    .await;
    assert!(result.is_err(), "乐观锁冲突应返回错误");
}

// ---------------------------------------------------------------------------
// 测试 8: 无效患者创建用药记录返回错误
// ---------------------------------------------------------------------------
#[tokio::test]
async fn test_medication_invalid_patient() {
    let app = TestApp::new().await;
    let fake_patient = uuid::Uuid::new_v4();

    let result = medication_record_service::create_medication(
        app.health_state(), app.tenant_id(), None,
        default_create_medication_req(fake_patient),
    )
    .await;
    assert!(result.is_err(), "无效患者应返回错误");
}