import asyncio
import logging
from dataclasses import dataclass

log = logging.getLogger('light')

class Color(str):

    def to_js(self):
        return self


@dataclass
class Light:
    name: str
    address: str
    online: bool
    colorRequest: Color
    colorMessage: dict
    colorCurrent: Color
    latencyMs: float

    def to_js(self):
        return {
            'light': {
                'name': self.name,
                'address': self.address,
                'online': self.online,
                'colorRequest': self.colorRequest.to_js(),
                'colorMessage': self.colorMessage,
                'colorCurrent': self.colorCurrent.to_js(),
                'latencyMs': self.latencyMs,
            }
        }


class Lights:
    _d: dict[str, Light] = {}

    def add(self, d: Light):
        self._d[d.name] = d

    def byName(self, name: str) -> Light:
        return self._d[name]

    async def changes(self):  # yields None on any data change
        while True:
            yield None
            await asyncio.sleep(1)

    def to_js(self):
        return {'lights': [d.to_js() for d in sorted(self._d.values(), key=lambda r: r.name)]}