@halsystems/red-bacnet/ext/node-bacstack/dist/lib/services/get-event-information.js

NodeRED BACnet IP client

'use strict';
Object.defineProperty(exports, "__esModule", { value: true });
exports.decodeAcknowledge = exports.encodeAcknowledge = exports.decode = exports.encode = void 0;
const baAsn1 = require("../asn1");
const baEnum = require("../enum");
const encode = (buffer, lastReceivedObjectId) => {
    baAsn1.encodeContextObjectId(buffer, 0, lastReceivedObjectId.type, lastReceivedObjectId.instance);
};
exports.encode = encode;
const decode = (buffer, offset) => {
    let len = 0;
    const result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
    len += result.len;
    const decodedValue = baAsn1.decodeObjectId(buffer, offset + len);
    len += decodedValue.len;
    return { len, lastReceivedObjectId: { type: decodedValue.objectType, instance: decodedValue.instance } };
};
exports.decode = decode;
const encodeAcknowledge = (buffer, events, moreEvents) => {
    baAsn1.encodeOpeningTag(buffer, 0);
    events.forEach((eventData) => {
        baAsn1.encodeContextObjectId(buffer, 0, eventData.objectId.type, eventData.objectId.instance);
        baAsn1.encodeContextEnumerated(buffer, 1, eventData.eventState);
        baAsn1.encodeContextBitstring(buffer, 2, eventData.acknowledgedTransitions);
        baAsn1.encodeOpeningTag(buffer, 3);
        for (let i = 0; i < 3; i++) {
            baAsn1.bacappEncodeTimestamp(buffer, eventData.eventTimeStamps[i]);
        }
        baAsn1.encodeClosingTag(buffer, 3);
        baAsn1.encodeContextEnumerated(buffer, 4, eventData.notifyType);
        baAsn1.encodeContextBitstring(buffer, 5, eventData.eventEnable);
        baAsn1.encodeOpeningTag(buffer, 6);
        for (let i = 0; i < 3; i++) {
            baAsn1.encodeApplicationUnsigned(buffer, eventData.eventPriorities[i]);
        }
        baAsn1.encodeClosingTag(buffer, 6);
    });
    baAsn1.encodeClosingTag(buffer, 0);
    baAsn1.encodeContextBoolean(buffer, 1, moreEvents);
};
exports.encodeAcknowledge = encodeAcknowledge;
const decodeAcknowledge = (buffer, offset, apduLen) => {
    let len = 0;
    let result;
    let decodedValue;
    const value = {};
    if (!baAsn1.decodeIsOpeningTagNumber(buffer, offset + len, 0))
        return;
    len++;
    value.events = [];
    while ((apduLen - len) > 3) {
        const event = {};
        result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
        len += result.len;
        decodedValue = baAsn1.decodeObjectId(buffer, offset + len);
        len += decodedValue.len;
        event.objectId = { type: decodedValue.objectType, instance: decodedValue.instance };
        result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
        len += result.len;
        decodedValue = baAsn1.decodeEnumerated(buffer, offset + len, result.value);
        len += decodedValue.len;
        event.eventState = decodedValue.value;
        result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
        len += result.len;
        decodedValue = baAsn1.decodeBitstring(buffer, offset + len, result.value);
        len += decodedValue.len;
        event.acknowledgedTransitions = decodedValue.value;
        if (!baAsn1.decodeIsOpeningTagNumber(buffer, offset + len, 3))
            return;
        len++;
        event.eventTimeStamps = [];
        for (let i = 0; i < 3; i++) {
            result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
            len += result.len;
            if (result.tagNumber === baEnum.TimeStamp.TIME) {
                decodedValue = baAsn1.decodeBacnetTime(buffer, offset + len);
                len += decodedValue.len;
                event.eventTimeStamps[i] = { value: decodedValue.value, type: baEnum.TimeStamp.TIME };
            }
            else if (result.tagNumber === baEnum.TimeStamp.SEQUENCE_NUMBER) {
                decodedValue = baAsn1.decodeUnsigned(buffer, offset + len, result.value);
                len += decodedValue.len;
                event.eventTimeStamps[i] = { value: decodedValue.value, type: baEnum.TimeStamp.SEQUENCE_NUMBER };
            }
            else if (result.tagNumber === baEnum.TimeStamp.DATETIME) {
                const dateRaw = baAsn1.decodeApplicationDate(buffer, offset + len);
                len += dateRaw.len;
                const date = dateRaw.value;
                const timeRaw = baAsn1.decodeApplicationTime(buffer, offset + len);
                len += timeRaw.len;
                const time = timeRaw.value;
                event.eventTimeStamps[i] = { value: new Date(date.getFullYear(), date.getMonth(), date.getDate(), time.getHours(), time.getMinutes(), time.getSeconds(), time.getMilliseconds()), type: baEnum.TimeStamp.DATETIME };
                len++;
            }
        }
        if (!baAsn1.decodeIsClosingTagNumber(buffer, offset + len, 3))
            return;
        len++;
        result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
        len += result.len;
        decodedValue = baAsn1.decodeEnumerated(buffer, offset + len, result.value);
        len += decodedValue.len;
        event.notifyType = decodedValue.value;
        result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
        len += result.len;
        decodedValue = baAsn1.decodeBitstring(buffer, offset + len, result.value);
        len += decodedValue.len;
        event.eventEnable = decodedValue.value;
        if (!baAsn1.decodeIsOpeningTagNumber(buffer, offset + len, 6))
            return;
        len++;
        event.eventPriorities = [];
        for (let i = 0; i < 3; i++) {
            result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
            len += result.len;
            decodedValue = baAsn1.decodeUnsigned(buffer, offset + len, result.value);
            len += decodedValue.len;
            event.eventPriorities[i] = decodedValue.value;
        }
        if (!baAsn1.decodeIsClosingTagNumber(buffer, offset + len, 6))
            return;
        len++;
        value.events.push(event);
    }
    if (!baAsn1.decodeIsClosingTagNumber(buffer, offset + len, 0))
        return;
    len++;
    result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
    len += result.len;
    value.moreEvents = buffer[offset + len] > 0;
    len++;
    value.len = len;
    return value;
};
exports.decodeAcknowledge = decodeAcknowledge;