import pytest

from app import db
from app.models import Board, Card, CardLabel, Label, List


@pytest.mark.integration
class TestLabelRoutes:
    """Test Label API routes"""

    def test_get_board_labels_success(
        self, client, db_session, regular_user, auth_headers
    ):
        """Test getting all labels for a board"""
        board = Board(name="Test Board", user_id=regular_user.id)
        db_session.add(board)
        db_session.flush()

        label1 = Label(name="Urgent", color="red", board_id=board.id)
        label2 = Label(name="Low Priority", color="green", board_id=board.id)
        db_session.add_all([label1, label2])
        db_session.commit()

        response = client.get(f"/api/boards/{board.id}/labels", headers=auth_headers)

        assert response.status_code == 200
        data = response.get_json()
        assert len(data) == 2
        assert data[0]["name"] == "Urgent"
        assert data[1]["name"] == "Low Priority"

    def test_get_board_labels_unauthorized(self, client, db_session, regular_user):
        """Test getting labels without authentication"""
        board = Board(name="Test Board", user_id=regular_user.id)
        db_session.add(board)
        db_session.commit()

        response = client.get(f"/api/boards/{board.id}/labels")

        assert response.status_code == 401

    def test_create_label_success(self, client, db_session, regular_user, auth_headers):
        """Test creating a new label in a board"""
        board = Board(name="Test Board", user_id=regular_user.id)
        db_session.add(board)
        db_session.commit()

        response = client.post(
            f"/api/boards/{board.id}/labels",
            headers=auth_headers,
            json={"name": "Urgent", "color": "red"},
        )

        assert response.status_code == 201
        data = response.get_json()
        assert data["name"] == "Urgent"
        assert data["color"] == "red"
        assert data["board_id"] == board.id

    def test_create_label_missing_name(
        self, client, db_session, regular_user, auth_headers
    ):
        """Test creating a label without name"""
        board = Board(name="Test Board", user_id=regular_user.id)
        db_session.add(board)
        db_session.commit()

        response = client.post(
            f"/api/boards/{board.id}/labels",
            headers=auth_headers,
            json={"color": "red"},
        )

        assert response.status_code == 400

    def test_create_label_unauthorized(self, client, db_session, regular_user):
        """Test creating a label without authentication"""
        board = Board(name="Test Board", user_id=regular_user.id)
        db_session.add(board)
        db_session.commit()

        response = client.post(
            f"/api/boards/{board.id}/labels",
            json={"name": "Urgent", "color": "red"},
        )

        assert response.status_code == 401

    def test_add_label_to_card_success(
        self, client, db_session, regular_user, auth_headers
    ):
        """Test adding a label to a card"""
        board = Board(name="Test Board", user_id=regular_user.id)
        db_session.add(board)
        db_session.flush()

        lst = List(name="To Do", board_id=board.id, pos=0)
        db_session.add(lst)
        db_session.flush()

        card = Card(name="Test Card", board_id=board.id, list_id=lst.id, pos=0)
        db_session.add(card)
        db_session.flush()

        label = Label(name="Urgent", color="red", board_id=board.id)
        db_session.add(label)
        db_session.commit()

        response = client.post(
            f"/api/cards/{card.id}/labels",
            headers=auth_headers,
            json={"label_id": label.id},
        )

        assert response.status_code == 201
        data = response.get_json()
        assert data["card_id"] == card.id
        assert data["label_id"] == label.id

    def test_add_label_to_card_unauthorized(self, client, db_session, regular_user):
        """Test adding a label to card without authentication"""
        board = Board(name="Test Board", user_id=regular_user.id)
        db_session.add(board)
        db_session.flush()

        lst = List(name="To Do", board_id=board.id, pos=0)
        db_session.add(lst)
        db_session.flush()

        card = Card(name="Test Card", board_id=board.id, list_id=lst.id, pos=0)
        db_session.add(card)
        db_session.flush()

        label = Label(name="Urgent", color="red", board_id=board.id)
        db_session.add(label)
        db_session.commit()

        response = client.post(
            f"/api/cards/{card.id}/labels",
            json={"label_id": label.id},
        )

        assert response.status_code == 401

    def test_remove_label_from_card_success(
        self, client, db_session, regular_user, auth_headers
    ):
        """Test removing a label from a card"""
        board = Board(name="Test Board", user_id=regular_user.id)
        db_session.add(board)
        db_session.flush()

        lst = List(name="To Do", board_id=board.id, pos=0)
        db_session.add(lst)
        db_session.flush()

        card = Card(name="Test Card", board_id=board.id, list_id=lst.id, pos=0)
        db_session.add(card)
        db_session.flush()

        label = Label(name="Urgent", color="red", board_id=board.id)
        db_session.add(label)
        db_session.flush()

        card_label = CardLabel(card_id=card.id, label_id=label.id)
        db_session.add(card_label)
        db_session.commit()

        response = client.delete(
            f"/api/cards/{card.id}/labels/{label.id}",
            headers=auth_headers,
        )

        assert response.status_code == 200
        data = response.get_json()
        assert "message" in data

        # Verify card-label association is deleted
        deleted_card_label = (
            db.session.query(CardLabel)
            .filter_by(card_id=card.id, label_id=label.id)
            .first()
        )
        assert deleted_card_label is None