import pytest
import tempfile
import time
from app.core.usage_tracker import UsageTracker, Tier, UsageRecord


@pytest.fixture
def tracker():
    with tempfile.NamedTemporaryFile(suffix=".db") as tmp:
        yield UsageTracker(db_path=tmp.name)


def test_get_or_create_api_key(tracker):
    assert tracker.get_or_create_api_key("test_key", Tier.FREE) is True
    assert tracker.get_tier("test_key") == Tier.FREE
    # Second call should return True without error
    assert tracker.get_or_create_api_key("test_key") is True


def test_update_api_key_tier(tracker):
    tracker.get_or_create_api_key("test_key", Tier.FREE)
    assert tracker.update_api_key_tier("test_key", Tier.PRO) is True
    assert tracker.get_tier("test_key") == Tier.PRO
    # Non-existent key
    assert tracker.update_api_key_tier("nonexistent", Tier.PRO) is False


def test_get_remaining_quota_free(tracker):
    tracker.get_or_create_api_key("free_key", Tier.FREE)
    # Initially 1000 remaining
    remaining = tracker.get_remaining_quota("free_key", Tier.FREE)
    assert remaining == 1000
    # Simulate usage using the atomic method
    record = UsageRecord(
        api_key="free_key",
        tier=Tier.FREE,
        timestamp=time.time(),
        endpoint="/test"
    )
    tracker.increment_usage_sync(record)
    remaining = tracker.get_remaining_quota("free_key", Tier.FREE)
    assert remaining == 999


def test_get_remaining_quota_enterprise(tracker):
    tracker.get_or_create_api_key("ent_key", Tier.ENTERPRISE)
    remaining = tracker.get_remaining_quota("ent_key", Tier.ENTERPRISE)
    assert remaining is None


def test_increment_usage_sync(tracker):
    tracker.get_or_create_api_key("test_key", Tier.FREE)
    record = UsageRecord(
        api_key="test_key",
        tier=Tier.FREE,
        timestamp=time.time(),
        endpoint="/test",
    )
    result = tracker.increment_usage_sync(record)
    assert result is True
    # Check quota decreased
    remaining = tracker.get_remaining_quota("test_key", Tier.FREE)
    assert remaining == 999


def test_get_audit_logs(tracker):
    tracker.get_or_create_api_key("test_key", Tier.FREE)
    record = UsageRecord(
        api_key="test_key",
        tier=Tier.FREE,
        timestamp=time.time(),
        endpoint="/test",
        request_body={"foo": "bar"},
        response={"status": "ok"},
    )
    tracker.increment_usage_sync(record)
    logs = tracker.get_audit_logs("test_key", limit=10)
    assert len(logs) == 1
    assert logs[0]["endpoint"] == "/test"