import uuid


# ---------------------------------------------------------------------------
# Medications
# ---------------------------------------------------------------------------


def test_create_medication_minimal(client, medication_data):
    r = client.post("/health/medications", json=medication_data)
    assert r.status_code == 201
    data = r.json()
    assert "record_id" in data
    assert data["kind"] == "prescription"
    assert data["product_name"] == "Epiduo"


def test_create_medication_invalid_kind(client):
    r = client.post(
        "/health/medications", json={"kind": "invalid_kind", "product_name": "X"}
    )
    assert r.status_code == 422


def test_list_medications_empty(client):
    r = client.get("/health/medications")
    assert r.status_code == 200
    assert r.json() == []


def test_list_filter_kind(client):
    client.post(
        "/health/medications", json={"kind": "prescription", "product_name": "A"}
    )
    client.post(
        "/health/medications", json={"kind": "supplement", "product_name": "B"}
    )
    r = client.get("/health/medications?kind=supplement")
    assert r.status_code == 200
    data = r.json()
    assert len(data) == 1
    assert data[0]["kind"] == "supplement"


def test_list_filter_product_name(client):
    client.post(
        "/health/medications", json={"kind": "otc", "product_name": "Epiduo Forte"}
    )
    client.post(
        "/health/medications", json={"kind": "otc", "product_name": "Panoxyl"}
    )
    r = client.get("/health/medications?product_name=epid")
    assert r.status_code == 200
    data = r.json()
    assert len(data) == 1
    assert "Epiduo" in data[0]["product_name"]


def test_get_medication(client, created_medication):
    mid = created_medication["record_id"]
    r = client.get(f"/health/medications/{mid}")
    assert r.status_code == 200
    assert r.json()["record_id"] == mid


def test_get_medication_not_found(client):
    r = client.get(f"/health/medications/{uuid.uuid4()}")
    assert r.status_code == 404


def test_update_medication(client, created_medication):
    mid = created_medication["record_id"]
    r = client.patch(
        f"/health/medications/{mid}", json={"notes": "Take in the evening"}
    )
    assert r.status_code == 200
    assert r.json()["notes"] == "Take in the evening"


def test_update_medication_not_found(client):
    r = client.patch(f"/health/medications/{uuid.uuid4()}", json={"notes": "x"})
    assert r.status_code == 404


def test_delete_medication_no_usages(client, created_medication):
    mid = created_medication["record_id"]
    r = client.delete(f"/health/medications/{mid}")
    assert r.status_code == 204
    r2 = client.get(f"/health/medications/{mid}")
    assert r2.status_code == 404


def test_delete_medication_with_usages(client, created_medication):
    mid = created_medication["record_id"]
    # Create a usage
    client.post(
        f"/health/medications/{mid}/usages",
        json={"valid_from": "2026-01-01T00:00:00"},
    )
    # Delete medication (should also delete usages)
    r = client.delete(f"/health/medications/{mid}")
    assert r.status_code == 204
    r2 = client.get(f"/health/medications/{mid}")
    assert r2.status_code == 404


# ---------------------------------------------------------------------------
# Usages
# ---------------------------------------------------------------------------


def test_create_usage(client, created_medication):
    mid = created_medication["record_id"]
    r = client.post(
        f"/health/medications/{mid}/usages",
        json={"valid_from": "2026-01-01T08:00:00", "dose_value": 1.0, "dose_unit": "pea"},
    )
    assert r.status_code == 201
    data = r.json()
    assert "record_id" in data
    assert data["medication_record_id"] == mid
    assert data["dose_unit"] == "pea"


def test_create_usage_medication_not_found(client):
    r = client.post(
        f"/health/medications/{uuid.uuid4()}/usages",
        json={"valid_from": "2026-01-01T00:00:00"},
    )
    assert r.status_code == 404


def test_list_usages_empty(client, created_medication):
    mid = created_medication["record_id"]
    r = client.get(f"/health/medications/{mid}/usages")
    assert r.status_code == 200
    assert r.json() == []


def test_list_usages_returns_entries(client, created_medication):
    mid = created_medication["record_id"]
    client.post(
        f"/health/medications/{mid}/usages",
        json={"valid_from": "2026-01-01T00:00:00"},
    )
    r = client.get(f"/health/medications/{mid}/usages")
    assert r.status_code == 200
    assert len(r.json()) == 1


def test_update_usage(client, created_medication):
    mid = created_medication["record_id"]
    r = client.post(
        f"/health/medications/{mid}/usages",
        json={"valid_from": "2026-01-01T00:00:00"},
    )
    uid = r.json()["record_id"]

    r2 = client.patch(f"/health/usages/{uid}", json={"dose_value": 2.5, "dose_unit": "mg"})
    assert r2.status_code == 200
    assert r2.json()["dose_value"] == 2.5
    assert r2.json()["dose_unit"] == "mg"


def test_update_usage_not_found(client):
    r = client.patch(f"/health/usages/{uuid.uuid4()}", json={"dose_value": 1.0})
    assert r.status_code == 404


def test_delete_usage(client, created_medication):
    mid = created_medication["record_id"]
    r = client.post(
        f"/health/medications/{mid}/usages",
        json={"valid_from": "2026-01-01T00:00:00"},
    )
    uid = r.json()["record_id"]

    r2 = client.delete(f"/health/usages/{uid}")
    assert r2.status_code == 204


def test_delete_usage_not_found(client):
    r = client.delete(f"/health/usages/{uuid.uuid4()}")
    assert r.status_code == 404


# ---------------------------------------------------------------------------
# Lab results
# ---------------------------------------------------------------------------


LAB_RESULT_DATA = {
    "collected_at": "2026-01-15T09:00:00",
    "test_code": "718-7",
    "test_name_original": "Hemoglobin",
    "value_num": 14.5,
    "unit_original": "g/dL",
    "flag": "N",
}


def test_create_lab_result(client):
    r = client.post("/health/lab-results", json=LAB_RESULT_DATA)
    assert r.status_code == 201
    data = r.json()
    assert "record_id" in data
    assert data["test_code"] == "718-7"
    assert data["flag"] == "N"


def test_create_lab_result_invalid_code(client):
    bad = {**LAB_RESULT_DATA, "test_code": "not-a-loinc-code"}
    r = client.post("/health/lab-results", json=bad)
    assert r.status_code == 422


def test_create_lab_result_invalid_flag(client):
    bad = {**LAB_RESULT_DATA, "flag": "INVALID"}
    r = client.post("/health/lab-results", json=bad)
    assert r.status_code == 422


def test_list_lab_results_empty(client):
    r = client.get("/health/lab-results")
    assert r.status_code == 200
    assert r.json() == []


def test_list_filter_test_code(client):
    client.post("/health/lab-results", json=LAB_RESULT_DATA)
    client.post("/health/lab-results", json={**LAB_RESULT_DATA, "test_code": "2951-2"})
    r = client.get("/health/lab-results?test_code=718-7")
    assert r.status_code == 200
    data = r.json()
    assert len(data) == 1
    assert data[0]["test_code"] == "718-7"


def test_list_filter_flag(client):
    client.post("/health/lab-results", json={**LAB_RESULT_DATA, "flag": "N"})
    client.post("/health/lab-results", json={**LAB_RESULT_DATA, "flag": "H"})
    r = client.get("/health/lab-results?flag=H")
    assert r.status_code == 200
    data = r.json()
    assert len(data) == 1
    assert data[0]["flag"] == "H"


def test_list_filter_date_range(client):
    client.post("/health/lab-results", json={**LAB_RESULT_DATA, "collected_at": "2026-01-01T00:00:00"})
    client.post("/health/lab-results", json={**LAB_RESULT_DATA, "collected_at": "2026-06-01T00:00:00"})
    r = client.get("/health/lab-results?from_date=2026-05-01T00:00:00")
    assert r.status_code == 200
    data = r.json()
    assert len(data) == 1


def test_get_lab_result(client):
    r = client.post("/health/lab-results", json=LAB_RESULT_DATA)
    rid = r.json()["record_id"]
    r2 = client.get(f"/health/lab-results/{rid}")
    assert r2.status_code == 200
    assert r2.json()["record_id"] == rid


def test_get_lab_result_not_found(client):
    r = client.get(f"/health/lab-results/{uuid.uuid4()}")
    assert r.status_code == 404


def test_update_lab_result(client):
    r = client.post("/health/lab-results", json=LAB_RESULT_DATA)
    rid = r.json()["record_id"]
    r2 = client.patch(f"/health/lab-results/{rid}", json={"notes": "Recheck in 3 months"})
    assert r2.status_code == 200
    assert r2.json()["notes"] == "Recheck in 3 months"


def test_delete_lab_result(client):
    r = client.post("/health/lab-results", json=LAB_RESULT_DATA)
    rid = r.json()["record_id"]
    r2 = client.delete(f"/health/lab-results/{rid}")
    assert r2.status_code == 204
    r3 = client.get(f"/health/lab-results/{rid}")
    assert r3.status_code == 404