# tests/integration/tasks/test_loyalty_tasks.py
"""
Integration tests for Loyalty background tasks.

Tests cover:
- Point expiration task
- Wallet sync task
"""

from datetime import UTC, datetime, timedelta

import pytest

from app.modules.loyalty.models import LoyaltyCard, LoyaltyTransaction
from app.modules.loyalty.models.loyalty_transaction import TransactionType
from app.modules.loyalty.tasks.point_expiration import (
    _expire_points_for_program,
    _process_point_expiration,
)


@pytest.mark.integration
@pytest.mark.task
class TestPointExpirationTask:
    """Tests for point expiration background task."""

    def test_expire_points_for_inactive_card(
        self, db, test_loyalty_program, test_loyalty_card_inactive
    ):
        """Test that points expire for inactive cards."""
        initial_balance = test_loyalty_card_inactive.points_balance
        assert initial_balance > 0

        # Run expiration for the program
        cards_processed, points_expired = _expire_points_for_program(
            db, test_loyalty_program
        )
        db.commit()

        # Refresh the card
        db.refresh(test_loyalty_card_inactive)

        assert cards_processed == 1
        assert points_expired == initial_balance
        assert test_loyalty_card_inactive.points_balance == 0

    def test_expire_points_creates_transaction(
        self, db, test_loyalty_program, test_loyalty_card_inactive
    ):
        """Test that expiration creates a transaction record."""
        initial_balance = test_loyalty_card_inactive.points_balance

        _expire_points_for_program(db, test_loyalty_program)
        db.commit()

        # Check for expiration transaction
        transaction = (
            db.query(LoyaltyTransaction)
            .filter(
                LoyaltyTransaction.card_id == test_loyalty_card_inactive.id,
                LoyaltyTransaction.transaction_type == TransactionType.POINTS_EXPIRED.value,
            )
            .first()
        )

        assert transaction is not None
        assert transaction.points_delta == -initial_balance
        assert transaction.balance_after == 0
        assert "expired" in transaction.notes.lower()

    def test_no_expiration_for_active_cards(
        self, db, test_loyalty_program, test_loyalty_card
    ):
        """Test that active cards are not expired."""
        # Ensure card has recent activity
        test_loyalty_card.last_activity_at = datetime.now(UTC)
        db.commit()

        initial_balance = test_loyalty_card.points_balance

        cards_processed, points_expired = _expire_points_for_program(
            db, test_loyalty_program
        )
        db.commit()

        db.refresh(test_loyalty_card)

        # Active card should not be affected
        assert test_loyalty_card.points_balance == initial_balance

    def test_no_expiration_for_zero_balance_cards(
        self, db, test_loyalty_program, test_loyalty_card_inactive
    ):
        """Test that cards with zero balance are not processed."""
        test_loyalty_card_inactive.points_balance = 0
        db.commit()

        cards_processed, points_expired = _expire_points_for_program(
            db, test_loyalty_program
        )
        db.commit()

        assert cards_processed == 0
        assert points_expired == 0

    def test_no_expiration_when_not_configured(
        self, db, test_loyalty_program_no_expiration
    ):
        """Test that no expiration occurs when not configured."""
        # Create a card with old activity for this program
        card = LoyaltyCard(
            company_id=test_loyalty_program_no_expiration.company_id,
            program_id=test_loyalty_program_no_expiration.id,
            card_number="NO-EXPIRY-CARD",
            customer_email="noexpiry@test.com",
            points_balance=1000,
            is_active=True,
            last_activity_at=datetime.now(UTC) - timedelta(days=1000),
        )
        db.add(card)
        db.commit()

        cards_processed, points_expired = _expire_points_for_program(
            db, test_loyalty_program_no_expiration
        )
        db.commit()

        db.refresh(card)

        # Should not expire because program has no expiration configured
        assert cards_processed == 0
        assert points_expired == 0
        assert card.points_balance == 1000

    def test_process_all_programs(self, db, test_loyalty_program, test_loyalty_card_inactive):
        """Test processing all programs."""
        result = _process_point_expiration(db)
        db.commit()

        assert result["status"] == "success"
        assert result["programs_processed"] >= 1

    def test_expiration_updates_voided_total(
        self, db, test_loyalty_program, test_loyalty_card_inactive
    ):
        """Test that expiration updates total_points_voided."""
        initial_balance = test_loyalty_card_inactive.points_balance
        initial_voided = test_loyalty_card_inactive.total_points_voided or 0

        _expire_points_for_program(db, test_loyalty_program)
        db.commit()

        db.refresh(test_loyalty_card_inactive)

        assert test_loyalty_card_inactive.total_points_voided == initial_voided + initial_balance