34 lines
1.1 KiB
Python
34 lines
1.1 KiB
Python
"""Helper functions for Philips Hue v2."""
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from __future__ import annotations
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from homeassistant.util import color as color_util
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def normalize_hue_brightness(brightness: float | None) -> float | None:
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"""Return calculated brightness values."""
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if brightness is not None:
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# Hue uses a range of [0, 100] to control brightness.
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brightness = float((brightness / 255) * 100)
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return brightness
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def normalize_hue_transition(transition: float | None) -> float | None:
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"""Return rounded transition values."""
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if transition is not None:
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# hue transition duration is in milliseconds and round them to 100ms
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transition = int(round(transition, 1) * 1000)
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return transition
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def normalize_hue_colortemp(colortemp_k: int | None) -> int | None:
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"""Return color temperature within Hue's ranges."""
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if colortemp_k is None:
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return None
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colortemp = color_util.color_temperature_kelvin_to_mired(colortemp_k)
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# Hue only accepts a range between 153..500
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colortemp = min(colortemp, 500)
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return max(colortemp, 153)
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