@halsystems/red-bacnet/ext/node-bacstack/dist/lib/services/subscribe-cov.js

NodeRED BACnet IP client

'use strict';
Object.defineProperty(exports, "__esModule", { value: true });
exports.decode = exports.encode = void 0;
const baAsn1 = require("../asn1");
const encode = (buffer, subscriberProcessId, monitoredObjectId, cancellationRequest, issueConfirmedNotifications, lifetime) => {
    baAsn1.encodeContextUnsigned(buffer, 0, subscriberProcessId);
    baAsn1.encodeContextObjectId(buffer, 1, monitoredObjectId.type, monitoredObjectId.instance);
    if (!cancellationRequest) {
        baAsn1.encodeContextBoolean(buffer, 2, issueConfirmedNotifications);
        baAsn1.encodeContextUnsigned(buffer, 3, lifetime);
    }
};
exports.encode = encode;
const decode = (buffer, offset, apduLen) => {
    let len = 0;
    const value = {};
    let result;
    let decodedValue;
    if (!baAsn1.decodeIsContextTag(buffer, offset + len, 0))
        return;
    result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
    len += result.len;
    decodedValue = baAsn1.decodeUnsigned(buffer, offset + len, result.value);
    len += decodedValue.len;
    value.subscriberProcessId = decodedValue.value;
    if (!baAsn1.decodeIsContextTag(buffer, offset + len, 1))
        return;
    result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
    len += result.len;
    decodedValue = baAsn1.decodeObjectId(buffer, offset + len);
    len += decodedValue.len;
    value.monitoredObjectId = { type: decodedValue.objectType, instance: decodedValue.instance };
    value.cancellationRequest = true;
    if (len < apduLen) {
        value.issueConfirmedNotifications = false;
        if (baAsn1.decodeIsContextTag(buffer, offset + len, 2)) {
            value.cancellationRequest = false;
            result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
            len += result.len;
            value.issueConfirmedNotifications = buffer[offset + len] > 0;
            len++;
        }
        value.lifetime = 0;
        if (baAsn1.decodeIsContextTag(buffer, offset + len, 3)) {
            result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
            len += result.len;
            decodedValue = baAsn1.decodeUnsigned(buffer, offset + len, result.value);
            len += decodedValue.len;
            value.lifetime = decodedValue.value;
        }
    }
    value.len = len;
    return value;
};
exports.decode = decode;