"""Test fixtures for Green Planet Energy integration."""

from collections.abc import Generator
from unittest.mock import AsyncMock, MagicMock, patch

import pytest

from homeassistant.components.green_planet_energy.const import DOMAIN
from homeassistant.core import HomeAssistant

from tests.common import MockConfigEntry


@pytest.fixture
def mock_config_entry() -> MockConfigEntry:
    """Create a mock config entry."""
    return MockConfigEntry(
        domain=DOMAIN,
        data={},
        unique_id=DOMAIN,
    )


@pytest.fixture
def mock_setup_entry() -> Generator[AsyncMock]:
    """Create a mocked Green Planet Energy API."""
    with patch(
        "homeassistant.components.green_planet_energy.async_setup_entry",
        return_value=True,
    ) as mock_setup_entry:
        yield mock_setup_entry


@pytest.fixture
def mock_api() -> Generator[MagicMock]:
    """Create a mocked Green Planet Energy API."""
    with (
        patch(
            "homeassistant.components.green_planet_energy.coordinator.GreenPlanetEnergyAPI",
            autospec=True,
        ) as mock_api_class,
        patch(
            "homeassistant.components.green_planet_energy.config_flow.GreenPlanetEnergyAPI",
            new=mock_api_class,
        ),
    ):
        # Use MagicMock instead of AsyncMock for sync methods
        mock_api_instance = MagicMock()

        # Mock the API response data
        # API returns prices in Cent/kWh (e.g., 25.0 Cent/kWh = 0.25 €/kWh)
        # Today's prices: 20 + (hour * 1) Cent/kWh
        today_prices = {
            f"gpe_price_{hour:02d}": 20.0 + (hour * 1.0) for hour in range(24)
        }
        # Tomorrow's prices: 25 + (hour * 1) Cent/kWh (slightly different for testing)
        tomorrow_prices = {
            f"gpe_price_{hour:02d}_tomorrow": 25.0 + (hour * 1.0) for hour in range(24)
        }

        # 15-minute resolution data for today and tomorrow.
        # Each quarter-hour slot within an hour carries a slight offset so tests
        # can distinguish individual slots:
        #   HH:00 → base + 0.00, HH:15 → base + 0.15, HH:30 → base + 0.30, HH:45 → base + 0.45
        today_quarter_prices = {
            f"gpe_price_{hour:02d}_{minute:02d}": round(20.0 + hour + minute / 100, 2)
            for hour in range(24)
            for minute in (0, 15, 30, 45)
        }
        tomorrow_quarter_prices = {
            f"gpe_price_{hour:02d}_{minute:02d}_tomorrow": round(
                25.0 + hour + minute / 100, 2
            )
            for hour in range(24)
            for minute in (0, 15, 30, 45)
        }

        # Combine all prices — 15-min keys take priority but hourly keys are also present.
        all_prices = {
            **today_prices,
            **tomorrow_prices,
            **today_quarter_prices,
            **tomorrow_quarter_prices,
        }

        # Make get_electricity_prices async since coordinator uses it
        mock_api_instance.get_electricity_prices = AsyncMock(return_value=all_prices)

        # Mock the calculation methods to return actual values in
        # Cent/kWh (not coroutines)
        # Highest price today: 20 + (23 * 1) = 43 Cent/kWh at hour 23
        mock_api_instance.get_highest_price_today.return_value = 43.0
        mock_api_instance.get_highest_price_today_with_hour.return_value = (43.0, 23)

        # Lowest price day (6-22): 20 + (6 * 1) = 26 Cent/kWh at hour 6
        mock_api_instance.get_lowest_price_day.return_value = 26.0
        mock_api_instance.get_lowest_price_day_with_hour.return_value = (26.0, 6)

        # Lowest price night (22-6): 20 + (0 * 1) = 20 Cent/kWh at hour 0
        mock_api_instance.get_lowest_price_night.return_value = 20.0
        mock_api_instance.get_lowest_price_night_with_hour.return_value = (20.0, 0)

        # Current price depends on the hour passed to the method
        # Mock get_current_price to return the price for the requested hour in Cent/kWh
        def get_current_price_mock(data, hour):
            """Return price for a specific hour in Cent/kWh."""
            return 20.0 + (hour * 1.0)

        mock_api_instance.get_current_price.side_effect = get_current_price_mock

        # Mock cheapest duration methods
        # For full day (0-24), provide a default mocked return value.
        mock_api_instance.get_cheapest_duration.return_value = (25.0, 12)

        # For day period (6-18), cheapest 2.5h window would be starting at hour 6
        # Use a representative mocked average value in Cent/kWh.
        mock_api_instance.get_cheapest_duration_day.return_value = (26.6, 6)

        # For night period (18-6), cheapest 2.5h window would be early morning
        # Average of hours 0, 1, and half of 2 tomorrow in Cent/kWh:
        # (25.0 + 26.0 + 27.0 * 0.5) / 2.5 = 25.8 Cent/kWh
        mock_api_instance.get_cheapest_duration_night.return_value = (25.8, 0)

        mock_api_class.return_value = mock_api_instance
        yield mock_api_instance


@pytest.fixture
async def init_integration(
    hass: HomeAssistant, mock_config_entry: MockConfigEntry, mock_api: MagicMock
) -> MockConfigEntry:
    """Set up the Green Planet Energy integration for testing."""
    mock_config_entry.add_to_hass(hass)
    await hass.config_entries.async_setup(mock_config_entry.entry_id)
    await hass.async_block_till_done()
    return mock_config_entry
