from datetime import UTC, datetime


def test_health(client):
    response = client.get("/health")
    assert response.status_code == 200
    data = response.json()
    assert data["status"] == "ok"
    assert data["database"] == "connected"


def test_list_events_empty(client):
    response = client.get("/api/events")
    assert response.status_code == 200
    data = response.json()
    assert data["items"] == []
    assert data["total"] == 0


def test_list_events_pagination(client, mock_events_collection):
    for i in range(5):
        mock_events_collection.insert_one({
            "id": f"evt-{i}",
            "timestamp": datetime.now(UTC).isoformat(),
            "service": "Directory",
            "operation": "Add user",
            "result": "success",
            "actor_display": f"Actor {i}",
            "raw_text": "",
        })
    response = client.get("/api/events?page=1&page_size=2")
    assert response.status_code == 200
    data = response.json()
    assert data["total"] == 5
    assert len(data["items"]) == 2
    assert data["page"] == 1
    assert data["page_size"] == 2


def test_list_events_filter_by_service(client, mock_events_collection):
    mock_events_collection.insert_one({
        "id": "evt-1",
        "timestamp": datetime.now(UTC).isoformat(),
        "service": "Exchange",
        "operation": "Update",
        "result": "success",
        "actor_display": "Alice",
        "raw_text": "",
    })
    mock_events_collection.insert_one({
        "id": "evt-2",
        "timestamp": datetime.now(UTC).isoformat(),
        "service": "Directory",
        "operation": "Add",
        "result": "success",
        "actor_display": "Bob",
        "raw_text": "",
    })
    response = client.get("/api/events?service=Exchange")
    assert response.status_code == 200
    data = response.json()
    assert data["total"] == 1
    assert data["items"][0]["service"] == "Exchange"


def test_list_events_page_size_validation(client):
    response = client.get("/api/events?page_size=0")
    assert response.status_code == 422
    response = client.get("/api/events?page_size=501")
    assert response.status_code == 422


def test_filter_options(client, mock_events_collection):
    mock_events_collection.insert_one({
        "id": "evt-1",
        "timestamp": datetime.now(UTC).isoformat(),
        "service": "Intune",
        "operation": "Assign",
        "result": "failure",
        "actor_display": "Charlie",
        "actor_upn": "charlie@example.com",
        "raw_text": "",
    })
    response = client.get("/api/filter-options")
    assert response.status_code == 200
    data = response.json()
    assert "Intune" in data["services"]
    assert "Assign" in data["operations"]
    assert "failure" in data["results"]
    assert "Charlie" in data["actors"]
    assert "charlie@example.com" in data["actor_upns"]


def test_fetch_audit_logs_validation(client):
    response = client.get("/api/fetch-audit-logs?hours=0")
    assert response.status_code == 422
    response = client.get("/api/fetch-audit-logs?hours=721")
    assert response.status_code == 422