sync-device_class.py

#!/usr/bin/env python3

import re

from homeassistant.components.binary_sensor import BinarySensorDeviceClass
from homeassistant.components.button import ButtonDeviceClass
from homeassistant.components.cover import CoverDeviceClass
from homeassistant.components.number import NumberDeviceClass
from homeassistant.components.sensor import SensorDeviceClass
from homeassistant.components.switch import SwitchDeviceClass

BLOCKLIST = (
    # requires special support on HA side
    "enum",
)

DOMAINS = {
    "binary_sensor": BinarySensorDeviceClass,
    "button": ButtonDeviceClass,
    "cover": CoverDeviceClass,
    "number": NumberDeviceClass,
    "sensor": SensorDeviceClass,
    "switch": SwitchDeviceClass,
}


def sub(path, pattern, repl):
    with open(path) as handle:
        content = handle.read()
    content = re.sub(pattern, repl, content, flags=re.MULTILINE)
    with open(path, "w") as handle:
        handle.write(content)


def main():
    classes = {"EMPTY": ""}
    allowed = {}

    for domain, enum in DOMAINS.items():
        available = {
            cls.value.upper(): cls.value for cls in enum if cls.value not in BLOCKLIST
        }

        classes.update(available)
        allowed[domain] = list(available.keys()) + ["EMPTY"]

    # replace constant defines in const.py
    out = ""
    for cls in sorted(classes):
        out += f'DEVICE_CLASS_{cls.upper()} = "{classes[cls]}"\n'
    sub("esphome/const.py", '(DEVICE_CLASS_\\w+ = "\\w*"\r?\n)+', out)

    for domain in sorted(allowed):
        # replace imports
        out = ""
        for item in sorted(allowed[domain]):
            out += f"    DEVICE_CLASS_{item.upper()},\n"

        sub(
            f"esphome/components/{domain}/__init__.py",
            "(    DEVICE_CLASS_\\w+,\r?\n)+",
            out,
        )


if __name__ == "__main__":
    main()