rwsdk/dist/use-synced-state/hibernation/reconnect/reconnect.js

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import { manager } from "../state/clientManager.js";
import { getConnection } from "../connection/connection.js";
import { getBackoffMs } from "./backoff.js";
/**
 * Schedules a reconnect for the given endpoint using exponential backoff.
 *
 * When the timer fires, the old connection (if any) is closed and evicted,
 * and a fresh connection is created. The new connection's `open` handler will
 * re-subscribe to all active keys and re-fetch their state.
 */
export function reconnect(endpoint) {
    const state = manager.getBackoff(endpoint);
    if (state.timer !== null)
        return;
    manager.notifyStatusChange(endpoint, "disconnected");
    const delayMs = getBackoffMs(state.attempt);
    state.timer = setTimeout(() => {
        state.timer = null;
        state.attempt++;
        manager.setBackoff(endpoint, state);
        manager.notifyStatusChange(endpoint, "reconnecting");
        const deadConnection = manager.getConnection(endpoint);
        if (deadConnection) {
            try {
                deadConnection.ws.close();
            }
            catch { }
            manager.deleteConnection(endpoint);
        }
        const factory = deadConnection?.webSocketFactory ?? ((url) => new WebSocket(url));
        getConnection(endpoint, factory);
    }, delayMs);
    manager.setBackoff(endpoint, state);
}