"""Comprehensive tests for the utils module.

Tests cover:
- sleep async function (live mode)
- sleep_sync function (live mode)
- auto_commit function

Note: Backtesting-related functions are excluded from these tests.
"""

import asyncio
import time
import pytest
from unittest.mock import patch, MagicMock, AsyncMock

from aiomql.core.utils import sleep, sleep_sync, auto_commit


class TestSleepAsync:
    """Tests for async sleep function in live mode."""

    @pytest.fixture(autouse=True)
    def set_live_mode(self):
        """Ensure Config.mode is set to live (not backtest)."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            yield mock_config

    async def test_sleep_calls_asyncio_sleep_in_live_mode(self):
        """Test sleep uses asyncio.sleep in live mode."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            with patch("aiomql.core.utils.asyncio.sleep", new_callable=AsyncMock) as mock_sleep:
                await sleep(1.5)
                mock_sleep.assert_called_once_with(1.5)

    async def test_sleep_with_zero_seconds(self):
        """Test sleep with zero seconds."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            with patch("aiomql.core.utils.asyncio.sleep", new_callable=AsyncMock) as mock_sleep:
                await sleep(0)
                mock_sleep.assert_called_once_with(0)

    async def test_sleep_with_integer_seconds(self):
        """Test sleep with integer seconds."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            with patch("aiomql.core.utils.asyncio.sleep", new_callable=AsyncMock) as mock_sleep:
                await sleep(5)
                mock_sleep.assert_called_once_with(5)

    async def test_sleep_with_float_seconds(self):
        """Test sleep with float seconds."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            with patch("aiomql.core.utils.asyncio.sleep", new_callable=AsyncMock) as mock_sleep:
                await sleep(0.5)
                mock_sleep.assert_called_once_with(0.5)

    async def test_sleep_actually_delays_execution(self):
        """Test sleep actually delays execution in live mode."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            start_time = time.time()
            await sleep(0.1)
            elapsed = time.time() - start_time
            assert elapsed >= 0.1


class TestSleepSync:
    """Tests for sync sleep function in live mode."""

    def test_sleep_sync_calls_time_sleep_in_live_mode(self):
        """Test sleep_sync uses time.sleep in live mode."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            with patch("aiomql.core.utils.time.sleep") as mock_sleep:
                sleep_sync(1.5)
                mock_sleep.assert_called_once_with(1.5)

    def test_sleep_sync_with_zero_seconds(self):
        """Test sleep_sync with zero seconds."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            with patch("aiomql.core.utils.time.sleep") as mock_sleep:
                sleep_sync(0)
                mock_sleep.assert_called_once_with(0)

    def test_sleep_sync_with_integer_seconds(self):
        """Test sleep_sync with integer seconds."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            with patch("aiomql.core.utils.time.sleep") as mock_sleep:
                sleep_sync(5)
                mock_sleep.assert_called_once_with(5)

    def test_sleep_sync_with_float_seconds(self):
        """Test sleep_sync with float seconds."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            with patch("aiomql.core.utils.time.sleep") as mock_sleep:
                sleep_sync(0.5)
                mock_sleep.assert_called_once_with(0.5)

    def test_sleep_sync_actually_delays_execution(self):
        """Test sleep_sync actually delays execution in live mode."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "live"
            start_time = time.time()
            sleep_sync(0.1)
            elapsed = time.time() - start_time
            assert elapsed >= 0.1


class TestAutoCommit:
    """Tests for auto_commit function."""

    async def test_auto_commit_stops_on_shutdown(self):
        """Test auto_commit stops when shutdown is True."""
        mock_config = MagicMock()
        mock_config.shutdown = True  # Start with shutdown True
        mock_config.db_commit_interval = 0.1
        mock_state = MagicMock()
        mock_state.conn.__enter__ = MagicMock(return_value=MagicMock())
        mock_state.conn.__exit__ = MagicMock(return_value=False)
        mock_state.acommit = AsyncMock()
        mock_config.state = mock_state

        with patch("aiomql.core.utils.Config", return_value=mock_config):
            with patch("aiomql.core.utils.sleep", new_callable=AsyncMock):
                await auto_commit()
        
        # Should not have called acommit since shutdown was True immediately
        mock_state.acommit.assert_not_called()

    async def test_auto_commit_uses_config_interval(self):
        """Test auto_commit uses db_commit_interval from config."""
        call_count = 0
        
        async def mock_sleep(secs):
            nonlocal call_count
            call_count += 1
            if call_count >= 2:
                # Stop the loop after a couple iterations
                mock_config.shutdown = True

        mock_config = MagicMock()
        mock_config.shutdown = False
        mock_config.db_commit_interval = 5.0
        mock_conn = MagicMock()
        mock_state = MagicMock()
        mock_state.conn.__enter__ = MagicMock(return_value=mock_conn)
        mock_state.conn.__exit__ = MagicMock(return_value=False)
        mock_state.acommit = AsyncMock()
        mock_config.state = mock_state

        with patch("aiomql.core.utils.Config", return_value=mock_config):
            with patch("aiomql.core.utils.sleep", side_effect=mock_sleep) as patched_sleep:
                await auto_commit()
        
        # Verify sleep was called with the config interval
        patched_sleep.assert_called_with(5.0)

    async def test_auto_commit_calls_acommit(self):
        """Test auto_commit calls state.acommit."""
        call_count = 0
        
        async def mock_sleep(secs):
            nonlocal call_count
            call_count += 1
            if call_count >= 1:
                mock_config.shutdown = True

        mock_config = MagicMock()
        mock_config.shutdown = False
        mock_config.db_commit_interval = 0.1
        mock_conn = MagicMock()
        mock_state = MagicMock()
        mock_state.conn.__enter__ = MagicMock(return_value=mock_conn)
        mock_state.conn.__exit__ = MagicMock(return_value=False)
        mock_state.acommit = AsyncMock()
        mock_config.state = mock_state

        with patch("aiomql.core.utils.Config", return_value=mock_config):
            with patch("aiomql.core.utils.sleep", side_effect=mock_sleep):
                await auto_commit()
        
        # Verify acommit was called with connection and close=False
        mock_state.acommit.assert_called_with(conn=mock_conn, close=False)

    async def test_auto_commit_handles_exception(self):
        """Test auto_commit handles exceptions gracefully."""
        mock_config = MagicMock()
        mock_config.shutdown = False
        mock_state = MagicMock()
        mock_state.conn.__enter__ = MagicMock(side_effect=Exception("Test error"))
        mock_state.conn.__exit__ = MagicMock(return_value=False)
        mock_config.state = mock_state

        with patch("aiomql.core.utils.Config", return_value=mock_config):
            with patch("aiomql.core.utils.logger") as mock_logger:
                # Should not raise, just log the error
                await auto_commit()
                mock_logger.error.assert_called_once()


class TestModeDispatch:
    """Tests for mode-based dispatch in sleep functions."""

    async def test_sleep_dispatches_to_backtest_in_backtest_mode(self):
        """Test sleep calls backtest_sleep in backtest mode."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "backtest"
            with patch("aiomql.core.utils.backtest_sleep", new_callable=AsyncMock) as mock_bt_sleep:
                await sleep(1.0)
                mock_bt_sleep.assert_called_once_with(1.0)

    def test_sleep_sync_dispatches_to_backtest_in_backtest_mode(self):
        """Test sleep_sync calls backtest_sleep_sync in backtest mode."""
        with patch("aiomql.core.utils.Config") as mock_config:
            mock_config.mode = "backtest"
            with patch("aiomql.core.utils.backtest_sleep_sync") as mock_bt_sleep:
                sleep_sync(1.0)
                mock_bt_sleep.assert_called_once_with(1.0)