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_metrics(client):
    response = client.get("/metrics")
    assert response.status_code == 200
    assert "aoc_request_duration_seconds" in response.text


def test_list_events_empty(client):
    response = client.get("/api/events")
    assert response.status_code == 200
    data = response.json()
    assert data["items"] == []
    assert data["next_cursor"] is None


def test_list_events_cursor_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_size=2")
    assert response.status_code == 200
    data = response.json()
    assert len(data["items"]) == 2
    assert data["next_cursor"] is not None

    # Follow cursor
    response2 = client.get(f"/api/events?page_size=2&cursor={data['next_cursor']}")
    assert response2.status_code == 200
    data2 = response2.json()
    assert len(data2["items"]) == 2
    assert data2["next_cursor"] is not None


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 len(data["items"]) == 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


def test_graph_webhook_validation(client):
    token = "test-validation-token-123"
    response = client.post("/api/webhooks/graph?validationToken=" + token)
    assert response.status_code == 200
    assert response.text == token
    assert response.headers["content-type"] == "text/plain; charset=utf-8"


def test_graph_webhook_notification(client):
    payload = {
        "value": [
            {
                "changeType": "updated",
                "resource": "auditLogs/directoryAudits",
                "clientState": "secret",
            }
        ]
    }
    response = client.post("/api/webhooks/graph", json=payload)
    assert response.status_code == 200
    assert response.json()["status"] == "accepted"