import uuid

import pytest
from sqlalchemy import select

from app.models.oauth_identity import OAuthIdentity


@pytest.mark.asyncio
async def test_oauth_identity_unique_provider_subject(test_db, test_user):
    """Two rows with same provider+subject should violate uniqueness."""
    user_id = uuid.UUID(test_user["user_data"]["id"])

    row1 = OAuthIdentity(
        user_id=user_id,
        provider="google",
        provider_subject="abc-123",
        provider_email_at_link="alex@acmemsp.com",
    )
    test_db.add(row1)
    await test_db.commit()

    row2 = OAuthIdentity(
        user_id=user_id,
        provider="google",
        provider_subject="abc-123",
        provider_email_at_link="alex@acmemsp.com",
    )
    test_db.add(row2)
    with pytest.raises(Exception):  # IntegrityError
        await test_db.commit()
    await test_db.rollback()

    rows = (
        await test_db.execute(
            select(OAuthIdentity).where(OAuthIdentity.user_id == user_id)
        )
    ).scalars().all()
    assert len(rows) == 1