import pytest

from app import db
from app.models import Board, List, Card, Comment


@pytest.mark.integration
class TestCommentRoutes:
    """Test Comment API routes"""

    def test_get_card_comments_success(self, client, db_session, regular_user, auth_headers):
        """Test getting all comments for 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()

        comment1 = Comment(text="First comment", card_id=card.id, user_id=1)
        comment2 = Comment(text="Second comment", card_id=card.id, user_id=1)
        db_session.add_all([comment1, comment2])
        db_session.commit()

        response = client.get(f"/api/cards/{card.id}/comments", headers=auth_headers)

        assert response.status_code == 200
        data = response.get_json()
        assert len(data) == 2
        assert data[0]["text"] == "Second comment"  # Newest first
        assert data[1]["text"] == "First comment"

    def test_get_card_comments_unauthorized(self, client, db_session, regular_user):
        """Test getting comments 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.commit()

        response = client.get(f"/api/cards/{card.id}/comments")

        assert response.status_code == 401

    def test_create_comment_success(self, client, db_session, regular_user, auth_headers):
        """Test creating a new comment on 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.commit()

        response = client.post(
            f"/api/cards/{card.id}/comments",
            headers=auth_headers,
            json={"text": "This is a comment"},
        )

        assert response.status_code == 201
        data = response.get_json()
        assert data["text"] == "This is a comment"
        assert data["card_id"] == card.id
        assert data["user_id"] == 1

    def test_create_comment_missing_text(self, client, db_session, regular_user, auth_headers):
        """Test creating a comment without text"""
        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.commit()

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

        assert response.status_code == 400

    def test_create_comment_unauthorized(self, client, db_session, regular_user):
        """Test creating a comment 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.commit()

        response = client.post(
            f"/api/cards/{card.id}/comments",
            json={"text": "This is a comment"},
        )

        assert response.status_code == 401

    def test_update_comment_success(self, client, db_session, auth_headers):
        """Test updating a comment (by author)"""
        board = Board(name="Test Board", user_id=1)
        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()

        comment = Comment(text="Original", card_id=card.id, user_id=1)
        db_session.add(comment)
        db_session.commit()

        response = client.put(
            f"/api/comments/{comment.id}",
            headers=auth_headers,
            json={"text": "Updated comment"},
        )

        assert response.status_code == 200
        data = response.get_json()
        assert data["text"] == "Updated comment"

    def test_update_comment_not_found(self, client, db_session, auth_headers):
        """Test updating a non-existent comment"""
        response = client.put(
            "/api/comments/99999",
            headers=auth_headers,
            json={"text": "Updated"},
        )

        assert response.status_code == 404

    def test_delete_comment_success(self, client, db_session, regular_user, auth_headers):
        """Test deleting a comment"""
        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()

        comment = Comment(text="To Delete", card_id=card.id, user_id=1)
        db_session.add(comment)
        db_session.commit()

        response = client.delete(f"/api/comments/{comment.id}", headers=auth_headers)

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

        # Verify comment is deleted
        deleted_comment = db.session.get(Comment, comment.id)
        assert deleted_comment is None

    def test_delete_comment_not_found(self, client, db_session, auth_headers):
        """Test deleting a non-existent comment"""
        response = client.delete("/api/comments/99999", headers=auth_headers)
        assert response.status_code == 404