from fastapi.testclient import TestClient

from app.db.session import Base, engine
from main import app

# Create test client
client = TestClient(app)


def test_health_check():
    """Test health check endpoint."""
    response = client.get("/health")
    assert response.status_code == 200
    assert response.json() == {"status": "ok"}


def test_create_todo():
    """Test creating a todo item."""
    # Create test database tables
    Base.metadata.create_all(bind=engine)

    # Define test data
    test_todo = {
        "title": "Test Todo",
        "description": "This is a test todo",
        "completed": False,
    }

    # Send POST request
    response = client.post("/todos", json=test_todo)

    # Check response
    assert response.status_code == 201
    data = response.json()
    assert data["title"] == test_todo["title"]
    assert data["description"] == test_todo["description"]
    assert data["completed"] == test_todo["completed"]
    assert "id" in data
    assert "created_at" in data
    assert "updated_at" in data

    # Cleanup test data
    client.delete(f"/todos/{data['id']}")


def test_read_todos():
    """Test reading all todo items."""
    # Create test database tables
    Base.metadata.create_all(bind=engine)

    # Create a test todo item
    test_todo = {
        "title": "Test Todo for Reading",
        "description": "This is a test todo for reading",
        "completed": False,
    }
    create_response = client.post("/todos", json=test_todo)
    created_todo = create_response.json()

    # Send GET request
    response = client.get("/todos")

    # Check response
    assert response.status_code == 200
    assert isinstance(response.json(), list)

    # Cleanup test data
    client.delete(f"/todos/{created_todo['id']}")


def test_read_todo():
    """Test reading a specific todo item."""
    # Create test database tables
    Base.metadata.create_all(bind=engine)

    # Create a test todo item
    test_todo = {
        "title": "Test Todo for Reading One",
        "description": "This is a test todo for reading one",
        "completed": False,
    }
    create_response = client.post("/todos", json=test_todo)
    created_todo = create_response.json()

    # Send GET request
    response = client.get(f"/todos/{created_todo['id']}")

    # Check response
    assert response.status_code == 200
    data = response.json()
    assert data["id"] == created_todo["id"]
    assert data["title"] == test_todo["title"]
    assert data["description"] == test_todo["description"]
    assert data["completed"] == test_todo["completed"]

    # Cleanup test data
    client.delete(f"/todos/{created_todo['id']}")


def test_update_todo():
    """Test updating a todo item."""
    # Create test database tables
    Base.metadata.create_all(bind=engine)

    # Create a test todo item
    test_todo = {
        "title": "Test Todo for Updating",
        "description": "This is a test todo for updating",
        "completed": False,
    }
    create_response = client.post("/todos", json=test_todo)
    created_todo = create_response.json()

    # Define update data
    update_data = {
        "title": "Updated Test Todo",
        "completed": True,
    }

    # Send PUT request
    response = client.put(f"/todos/{created_todo['id']}", json=update_data)

    # Check response
    assert response.status_code == 200
    data = response.json()
    assert data["id"] == created_todo["id"]
    assert data["title"] == update_data["title"]
    assert data["description"] == test_todo["description"]  # Should remain unchanged
    assert data["completed"] == update_data["completed"]

    # Cleanup test data
    client.delete(f"/todos/{created_todo['id']}")


def test_delete_todo():
    """Test deleting a todo item."""
    # Create test database tables
    Base.metadata.create_all(bind=engine)

    # Create a test todo item
    test_todo = {
        "title": "Test Todo for Deleting",
        "description": "This is a test todo for deleting",
        "completed": False,
    }
    create_response = client.post("/todos", json=test_todo)
    created_todo = create_response.json()

    # Send DELETE request
    response = client.delete(f"/todos/{created_todo['id']}")

    # Check response
    assert response.status_code == 204
    assert response.content == b""  # No content should be returned

    # Verify the todo is deleted
    get_response = client.get(f"/todos/{created_todo['id']}")
    assert get_response.status_code == 404