"""
retention_service.run_weekly_cleanup() — CLAUDE.md §22 DATA_RETENTION.
Uses explicit ISO date strings (not the mocks' internal sequence
counters) since these tests are specifically about real date-based
filtering, matching the pattern test_api_extended.py already uses for
scrape_runs' started_at.
"""
from datetime import datetime, timedelta, timezone
from services import retention_service
from repositories.scrape_repository import scrape_repository
from repositories.alert_repository import alert_repository
from repositories.price_history_repository import price_history_repository

OLD = (datetime.now(timezone.utc) - timedelta(days=200)).isoformat()
RECENT = (datetime.now(timezone.utc) - timedelta(days=1)).isoformat()


def test_deletes_scrape_runs_older_than_90_days():
    old_run = scrape_repository.create({'tenant_id': 't1', 'triggered_by': 'cron', 'status': 'complete', 'started_at': OLD})
    recent_run = scrape_repository.create({'tenant_id': 't1', 'triggered_by': 'cron', 'status': 'complete', 'started_at': RECENT})

    result = retention_service.run_weekly_cleanup()

    assert result['scrape_runs_deleted'] == 1
    assert scrape_repository.get_by_id(old_run['id']) is None
    assert scrape_repository.get_by_id(recent_run['id']) is not None


def test_deletes_only_read_alerts_older_than_90_days():
    old_read = alert_repository.create({
        'tenant_id': 't1', 'competitor_id': 'c1', 'alert_type': 'new_product',
        'message': 'x', 'read': True, 'created': OLD,
    })
    old_unread = alert_repository.create({
        'tenant_id': 't1', 'competitor_id': 'c1', 'alert_type': 'new_product',
        'message': 'x', 'read': False, 'created': OLD,
    })
    recent_read = alert_repository.create({
        'tenant_id': 't1', 'competitor_id': 'c1', 'alert_type': 'new_product',
        'message': 'x', 'read': True, 'created': RECENT,
    })

    result = retention_service.run_weekly_cleanup()

    assert result['alerts_deleted'] == 1
    assert alert_repository.get_by_id(old_read['id']) is None
    assert alert_repository.get_by_id(old_unread['id']) is not None  # unread never auto-deleted, regardless of age
    assert alert_repository.get_by_id(recent_read['id']) is not None


def test_deletes_price_history_older_than_365_days():
    very_old = (datetime.now(timezone.utc) - timedelta(days=400)).isoformat()
    old_record = price_history_repository.create({'tenant_id': 't1', 'product_id': 'p1', 'scraped_at': very_old})
    recent_record = price_history_repository.create({'tenant_id': 't1', 'product_id': 'p1', 'scraped_at': RECENT})

    result = retention_service.run_weekly_cleanup()

    assert result['price_history_deleted'] == 1
    assert price_history_repository.list_for_tenant('t1') == [recent_record]
    assert old_record not in price_history_repository.list_for_tenant('t1')


def test_price_history_at_200_days_survives_365_day_retention():
    """200-day-old price_history is past the 90-day scrape_runs/alerts window but under the 365-day price_history one."""
    record = price_history_repository.create({'tenant_id': 't1', 'product_id': 'p1', 'scraped_at': OLD})

    result = retention_service.run_weekly_cleanup()

    assert result['price_history_deleted'] == 0
    assert price_history_repository.list_for_tenant('t1') == [record]


def test_returns_zero_counts_when_nothing_to_clean():
    result = retention_service.run_weekly_cleanup()
    assert result == {'scrape_runs_deleted': 0, 'alerts_deleted': 0, 'price_history_deleted': 0}