def test_list_vehicles_filters_by_status(ops_client):
    response = ops_client.get("/api/v1/vehicles", params={"status": "maintenance"})
    assert response.status_code == 200
    vehicles = response.json()
    assert len(vehicles) > 0
    assert all(v["operational_status"] == "maintenance" for v in vehicles)


def test_attention_only_filters_flagged_vehicles(ops_client):
    response = ops_client.get("/api/v1/vehicles", params={"attention_only": True})
    assert response.status_code == 200
    vehicles = response.json()
    assert len(vehicles) > 0
    assert all(v["attention"] for v in vehicles)
    assert all(v["attention_reason"] for v in vehicles)


def test_vehicle_list_exposes_planning_and_service_context(ops_client):
    vehicles = ops_client.get("/api/v1/vehicles").json()
    assert vehicles
    assert all("service_remaining_km" in vehicle for vehicle in vehicles)
    assert all("next_booking_ref" in vehicle for vehicle in vehicles)
    location = vehicles[0]["location"]
    filtered = ops_client.get("/api/v1/vehicles", params={"location": location}).json()
    assert filtered
    assert all(vehicle["location"].casefold() == location.casefold() for vehicle in filtered)


def test_vehicle_page_preserves_filters_and_limits_rendered_records(ops_client):
    response = ops_client.get(
        "/api/v1/vehicles",
        params={"status": "maintenance", "page": 1, "page_size": 25},
    )
    assert response.status_code == 200
    body = response.json()
    assert len(body["items"]) <= 25
    assert all(v["operational_status"] == "maintenance" for v in body["items"])
    assert body["total"] >= len(body["items"])


def test_vehicle_detail_includes_related_records(ops_client):
    response = ops_client.get("/api/v1/vehicles/MO-016")
    assert response.status_code == 200
    body = response.json()
    assert body["public_ref"] == "MO-016"
    assert len(body["quality_issues"]) >= 1


def test_employee_vehicle_detail_never_exposes_quality_evidence(employee_client):
    response = employee_client.get("/api/v1/vehicles/MO-016")
    assert response.status_code == 200
    assert response.json()["quality_issues"] == []


def test_vehicle_detail_404_for_unknown_ref(ops_client):
    response = ops_client.get("/api/v1/vehicles/MO-999")
    assert response.status_code == 404


def test_manager_can_record_maintenance_and_release_vehicle(ops_client):
    vehicle = ops_client.get("/api/v1/vehicles", params={"status": "available"}).json()[0]
    response = ops_client.post(
        f"/api/v1/vehicles/{vehicle['public_ref']}/maintenance",
        json={
            "occurred_at": "2051-01-15T09:00:00Z",
            "odometer_km": vehicle["odometer_km"] + 100,
            "category": "periodic_service",
            "summary": "Periodic service completed and safety checks passed.",
            "next_service_km": vehicle["odometer_km"] + 20100,
            "mark_maintenance": True,
        },
    )
    assert response.status_code == 201
    detail = ops_client.get(f"/api/v1/vehicles/{vehicle['public_ref']}").json()
    assert detail["operational_status"] == "maintenance"
    assert any(
        item["public_ref"] == response.json()["public_ref"] for item in detail["maintenance"]
    )
    released = ops_client.post(
        f"/api/v1/vehicles/{vehicle['public_ref']}/release",
        json={"reason": "Service completed and vehicle inspected"},
    )
    assert released.status_code == 200
    assert released.json()["operational_status"] == "available"


def test_low_maintenance_reading_keeps_canonical_and_opens_quality_issue(ops_client):
    existing_issues = ops_client.get(
        "/api/v1/data-quality/issues",
        params={"status": "open", "rule_type": "odometer_regression"},
    ).json()
    unavailable_refs = {issue["entity_ref"] for issue in existing_issues}
    vehicles = ops_client.get("/api/v1/vehicles", params={"status": "available"}).json()
    vehicle = next(
        candidate
        for candidate in vehicles
        if candidate["odometer_km"] > 0 and candidate["public_ref"] not in unavailable_refs
    )

    response = ops_client.post(
        f"/api/v1/vehicles/{vehicle['public_ref']}/maintenance",
        json={
            "occurred_at": "2053-01-15T12:00:00Z",
            "odometer_km": vehicle["odometer_km"] - 1,
            "category": "inspection",
            "summary": "Imported workshop reading requires verification.",
            "mark_maintenance": True,
        },
    )

    assert response.status_code == 201
    detail = ops_client.get(f"/api/v1/vehicles/{vehicle['public_ref']}").json()
    assert detail["odometer_km"] == vehicle["odometer_km"]
    issues = ops_client.get(
        "/api/v1/data-quality/issues",
        params={"status": "open", "rule_type": "odometer_regression"},
    ).json()
    issue = next(item for item in issues if item["entity_ref"] == vehicle["public_ref"])
    assert issue["evidence"]["source_type"] == "maintenance"
    assert issue["evidence"]["correctable_booking_refs"] == []
    issue_detail = ops_client.get(f"/api/v1/data-quality/issues/{issue['public_ref']}").json()
    assert any(
        snapshot["entity_type"] == "maintenance"
        and snapshot["public_ref"] == response.json()["public_ref"]
        for snapshot in issue_detail["related_snapshots"]
    )
    retained = ops_client.post(
        f"/api/v1/data-quality/issues/{issue['public_ref']}/resolve-odometer-regression",
        json={"decision": "retain_canonical"},
    )
    assert retained.status_code == 200


def test_employee_cannot_record_maintenance(employee_client):
    response = employee_client.post(
        "/api/v1/vehicles/MO-001/maintenance",
        json={
            "occurred_at": "2051-01-15T09:00:00Z",
            "odometer_km": 100,
            "category": "repair",
            "summary": "Unauthorised attempt",
        },
    )
    assert response.status_code == 403