"""Test the `parse_dimensions` function and its helpers"""

from helpers.dimensions import parse_dimensions, parse_dimensions_measure, units_to_cm


def test_none():
    """Test None value"""
    assert parse_dimensions(None) == {"height": None, "width": None, "depth": None}


def test_parse_dimensions():
    """Test a normal example from the sample file"""
    dimensions_str = "23 inches (H) x 1 inches (W) x 23 inches (D)"
    assert parse_dimensions_measure(dimensions_str, "W") == {
        "unit": "inches",
        "value": 1.0,
    }
    assert parse_dimensions_measure(dimensions_str, "H") == {
        "unit": "inches",
        "value": 23.0,
    }
    assert parse_dimensions_measure(dimensions_str, "D") == {
        "unit": "inches",
        "value": 23.0,
    }
    assert parse_dimensions(dimensions_str) == {
        "depth": 58.42,
        "height": 58.42,
        "width": 2.54,
    }


def test_parse_dimensions_comma():
    """Test a normal example from the sample file, but the separator is a comma"""
    dimensions_str = "23 inches (H), 1 inches (W), 23 inches (D)"
    assert parse_dimensions_measure(dimensions_str, "W") == {
        "unit": "inches",
        "value": 1.0,
    }
    assert parse_dimensions_measure(dimensions_str, "H") == {
        "unit": "inches",
        "value": 23.0,
    }
    assert parse_dimensions_measure(dimensions_str, "D") == {
        "unit": "inches",
        "value": 23.0,
    }
    assert parse_dimensions(dimensions_str) == {
        "depth": 58.42,
        "height": 58.42,
        "width": 2.54,
    }


def test_parse_dimensions_feet():
    """Test a normal example from the sample file, but the units is feet"""
    dimensions_str = "23 feet (H) x 1 feet (W) x 23 feet (D)"
    assert parse_dimensions_measure(dimensions_str, "W") == {
        "unit": "feet",
        "value": 1.0,
    }
    assert parse_dimensions_measure(dimensions_str, "H") == {
        "unit": "feet",
        "value": 23.0,
    }
    assert parse_dimensions_measure(dimensions_str, "D") == {
        "unit": "feet",
        "value": 23.0,
    }
    assert parse_dimensions(dimensions_str) == {
        "depth": 701.04,
        "height": 701.04,
        "width": 30.48,
    }


def test_parse_dimensions_missing():
    """Test a normal example from the sample file but some measurement is missing"""
    dimensions_str = "23 inches (H) x 23 inches (D)"
    assert parse_dimensions_measure(dimensions_str, "W") is None
    assert parse_dimensions_measure(dimensions_str, "H") == {
        "unit": "inches",
        "value": 23.0,
    }
    assert parse_dimensions_measure(dimensions_str, "D") == {
        "unit": "inches",
        "value": 23.0,
    }
    assert parse_dimensions(dimensions_str) == {
        "depth": 58.42,
        "height": 58.42,
        "width": None,
    }


def test_units_to_cm_inches():
    """Test `units_to_cm` where the units is inches"""
    assert units_to_cm(value=0.5, unit="inches") == 1.27


def test_units_to_cm_feet():
    """Test `units_to_cm` where the units is inches"""
    assert units_to_cm(value=0.5, unit="feet") == 15.24


def test_units_to_cm_cm():
    """Test `units_to_cm` where the units is already cm"""
    assert units_to_cm(value=0.5, unit="cm") == 0.5


def test_units_to_cm_unrecognized():
    """Test `units_to_cm` where the units are not recognized"""
    assert units_to_cm(value=0.5, unit="yard") is None