"""Hottis LED Stripe vendor transformations."""

import logging
from typing import Any

logger = logging.getLogger(__name__)


def transform_light_to_vendor(payload: dict[str, Any]) -> str:
    """Transform abstract relay payload to Hottis LED Stripe format.
    
    Hottis LED Stripe expects plain text 'on' or 'off' (not JSON).
    
    Example:
    - Abstract: {'power': 'on'}
    - Hottis LED Stripe: 'ON'
    """

    bri = 89.0 / 254.0
    r = int(255 * bri)
    g = int(103 * bri)
    b = int(25 * bri)

    cmd = f"{r} {g} {b}" if payload.get("power", "off").lower() == "on" else "0 0 0"
    return cmd


def transform_light_to_abstract(payload: str) -> dict[str, Any]:
    """Transform Hottis LED Stripe relay payload to abstract format.
    
    Hottis LED Stripe sends plain text 'on' or 'off'.
    
    Example:
    - Hottis LED Stripe: 'ON'
    - Abstract: {'power': 'on'}
    """
    
    power = "on" if payload.strip() != "0 0 0" else "off"
    return {"power": power}


# Registry of handlers for this vendor
HANDLERS = {
    ("light", "to_vendor"): transform_light_to_vendor,
    ("light", "to_abstract"): transform_light_to_abstract,
}