home-assistant-js-websocket/lib/config.ts

50 lines
1.5 KiB
TypeScript

import { getCollection } from "./collection.js";
import { HassConfig, UnsubscribeFunc } from "./types.js";
import { Connection } from "./connection.js";
import { Store } from "./store.js";
import { getConfig } from "./commands.js";
type ComponentLoadedEvent = {
data: {
component: string;
};
};
function processComponentLoaded(
state: HassConfig,
event: ComponentLoadedEvent,
): Partial<HassConfig> | null {
if (state === undefined) return null;
return {
components: state.components.concat(event.data.component),
};
}
const fetchConfig = (conn: Connection) => getConfig(conn);
const subscribeUpdates = (conn: Connection, store: Store<HassConfig>) =>
Promise.all([
conn.subscribeEvents(
store.action(processComponentLoaded),
"component_loaded",
),
conn.subscribeEvents(
() => fetchConfig(conn).then((config) => store.setState(config, true)),
"core_config_updated",
),
]).then((unsubs) => () => unsubs.forEach((unsub) => unsub()));
export const configColl = (conn: Connection) =>
getCollection(conn, "_cnf", fetchConfig, subscribeUpdates);
export const subscribeConfig = (
conn: Connection,
onChange: (state: HassConfig) => void,
): UnsubscribeFunc => configColl(conn).subscribe(onChange);
export const STATE_NOT_RUNNING = "NOT_RUNNING";
export const STATE_STARTING = "STARTING";
export const STATE_RUNNING = "RUNNING";
export const STATE_STOPPING = "STOPPING";
export const STATE_FINAL_WRITE = "FINAL_WRITE";