ts-bacnet/lib/services/get-event-information.js

The BACnet protocol library written in pure JavaScript.

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.decodeAcknowledge = exports.encodeAcknowledge = exports.decode = exports.encode = void 0;
const baAsn1 = __importStar(require("../asn1"));
const baEnum = __importStar(require("../enum"));
const encode = (buffer, lastReceivedObjectId) => {
    baAsn1.encodeContextObjectId(buffer, 0, lastReceivedObjectId.type, lastReceivedObjectId.instance);
};
exports.encode = encode;
const decode = (buffer, offset) => {
    let len = 0;
    let result;
    let decodedValue;
    let value = {};
    result = baAsn1.decodeTagNumberAndValue(buffer, offset + len);
    len += result.len;
    decodedValue = baAsn1.decodeObjectId(buffer, offset + len);
    len += decodedValue.len;
    value.lastReceivedObjectId = {
        type: decodedValue.objectType,
        instance: decodedValue.instance,
    };
    value.len = len;
    return value;
};
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;
    let value = {};
    if (!baAsn1.decodeIsOpeningTagNumber(buffer, offset + len, 0)) {
        return undefined;
    }
    len++;
    value.events = [];
    while (apduLen - len > 3) {
        let 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 undefined;
        }
        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, result.value);
                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) {
                let date = baAsn1.decodeApplicationDate(buffer, offset + len);
                len += date.len;
                date = date.value.value;
                let time = baAsn1.decodeApplicationTime(buffer, offset + len);
                len += time.len;
                time = time.value.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 undefined;
        }
        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 undefined;
        }
        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 undefined;
        }
        len++;
        value.events.push(event);
    }
    if (!baAsn1.decodeIsClosingTagNumber(buffer, offset + len, 0)) {
        return undefined;
    }
    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;