custom-card-helpers/src/turn-on-off-entities.ts

Set of helpful functions and types for Custom Card creators

import { HomeAssistant } from "./types";
import { STATES_OFF } from "./const";
import { computeDomain } from "./compute-domain";

export const turnOnOffEntities = (
  hass: HomeAssistant,
  entityIds: string[],
  turnOn = true
): void => {
  const domainsToCall = {};
  entityIds.forEach((entityId) => {
    if (STATES_OFF.includes(hass.states[entityId].state) === turnOn) {
      const stateDomain = computeDomain(entityId);
      const serviceDomain = ["cover", "lock"].includes(stateDomain)
        ? stateDomain
        : "homeassistant";

      if (!(serviceDomain in domainsToCall)) {
        domainsToCall[serviceDomain] = [];
      }
      domainsToCall[serviceDomain].push(entityId);
    }
  });

  Object.keys(domainsToCall).forEach((domain) => {
    let service;
    switch (domain) {
      case "lock":
        service = turnOn ? "unlock" : "lock";
        break;
      case "cover":
        service = turnOn ? "open_cover" : "close_cover";
        break;
      default:
        service = turnOn ? "turn_on" : "turn_off";
    }

    const entities = domainsToCall[domain];
    hass.callService(domain, service, { entity_id: entities });
  });
};