homebridge-eqiva-swift-bridge/dist/websocket.js

Homebridge Eqiva Plugin Bridge for Swift Eqiva eQ-3 Bluetooth Lock Controller.

import { WebSocketServer, WebSocket } from 'ws';
import { EventEmitter } from 'events';
/**
 * SwiftBridge wraps a bare WebSocketServer and turns it into an EventEmitter
 * that speaks in domain events: 'status' and 'connected'.
 */
export class SwiftBridge extends EventEmitter {
    log;
    swift;
    queuedCommand;
    constructor(log, port) {
        super();
        this.log = log;
        const wss = new WebSocketServer({ port });
        wss.on('connection', (socket) => this.handleConnection(socket));
        wss.on('listening', () => {
            this.emit('listening', port);
            this.log.info(`WebSocket listening on :${port}`);
        });
    }
    /** Send a command to the Swift app (or queue if not connected). */
    send(cmd) {
        if (this.swift && this.swift.readyState === WebSocket.OPEN) {
            this.swift.send(cmd);
        }
        else {
            this.log.warn('Swift not connected – queueing', cmd);
            this.queuedCommand = cmd;
        }
    }
    // --------------------------------------------------------------------------
    handleConnection(socket) {
        this.log.info('Swift connected');
        this.swift = socket;
        this.emit('connected');
        // Flush queued command
        if (this.queuedCommand) {
            const cmd = this.queuedCommand;
            this.queuedCommand = undefined;
            this.send(cmd);
        }
        socket.on('message', (data) => {
            try {
                const msg = JSON.parse(data.toString());
                this.emit('status', msg);
            }
            catch (e) {
                this.log.error('Bad WS payload', e);
            }
        });
        socket.on('close', () => {
            this.log.warn('Swift disconnected');
            this.swift = undefined;
        });
    }
}
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