from unittest.mock import patch

from app.homelab.openmeteo import (
    RECOMMENDED_SYNC_DOMAINS,
    RECOMMENDED_SYNC_VARIABLES,
    SYNC_HINT,
    _coverage_sufficient,
    _field_coverage,
    _hourly_start_index,
    build_weather_dashboard,
)


def test_hourly_start_index_from_current():
    times = ["2026-06-14T00:00", "2026-06-14T01:00", "2026-06-14T18:00", "2026-06-14T19:00"]
    assert _hourly_start_index(times, "2026-06-14T18:15") == 2


def test_coverage_sufficient():
    assert _coverage_sufficient({"current": ["temperature_2m"], "hourly": ["temperature_2m"]}) is False
    assert _coverage_sufficient(
        {
            "current": ["temperature_2m", "weather_code", "wind_speed_10m"],
            "hourly": ["temperature_2m", "precipitation_probability", "weather_code"],
        }
    ) is True


def test_field_coverage_partial():
    raw = {
        "current": {"time": "2026-06-14T18:15", "temperature_2m": 20.6},
        "hourly": {
            "time": ["2026-06-14T18:00", "2026-06-14T19:00"],
            "temperature_2m": [20.0, 19.5],
            "precipitation": [0.0, 0.0],
        },
    }
    coverage = _field_coverage(raw)
    assert coverage["current"] == ["temperature_2m"]
    assert "temperature_2m" in coverage["hourly"]
    assert "precipitation" in coverage["hourly"]
    assert "weather_code" not in coverage["hourly"]


def test_build_weather_dashboard_includes_sync_hint():
    fake_weather = {
        "ok": True,
        "location": "Test",
        "data_source": "local",
        "local_field_coverage": {"current": ["temperature_2m"], "hourly": ["temperature_2m"]},
        "field_coverage": {"current": ["temperature_2m"], "hourly": ["temperature_2m"]},
        "sync_hint": SYNC_HINT,
        "current": {"temperature_c": 10, "conditions": "неизвестно"},
        "hourly": [],
    }
    with patch("app.homelab.openmeteo.OpenMeteoClient") as mock_cls:
        client = mock_cls.return_value
        client.fetch_current_and_hourly.return_value = fake_weather
        client.rain_summary.return_value = "ok"
        client.cache_status.return_value = {"source": "local", "has_data": True, "cached": True, "ttl_sec": 300}
        client.location_name = "Test"
        client.lat = 1.0
        client.lon = 2.0
        client.base_url = "http://local"
        client.cache_ttl = 300
        result = build_weather_dashboard()
    assert result["sync_hint"]
    assert result["recommended_sync"]["domains"] == RECOMMENDED_SYNC_DOMAINS
    assert result["recommended_sync"]["variables"] == RECOMMENDED_SYNC_VARIABLES