@bacnet-js/device/dist/objects/multistatevalue.js

A TypeScript library for implementing BACnet IP devices in Node.js.

import assert from 'node:assert';
import { BDSingletProperty, BDPolledArrayProperty, BDPolledSingletProperty, } from '../properties/index.js';
import { BDObject } from './generic/object.js';
import { ObjectType, ApplicationTag, PropertyIdentifier, ErrorClass, ErrorCode, } from '@bacnet-js/client';
import { BDError } from '../errors.js';
export class BDMultiStateValue extends BDObject {
    stateText;
    presentValue;
    numberOfStates;
    constructor(instance, opts) {
        assert(opts.states.length > 0, 'states array must not be empty');
        super({ type: ObjectType.MULTI_STATE_VALUE, instance }, opts.name, opts.description);
        const numberOfStatesValue = opts.states.length;
        this.numberOfStates = this.addProperty(new BDPolledSingletProperty(PropertyIdentifier.NUMBER_OF_STATES, ApplicationTag.UNSIGNED_INTEGER, () => numberOfStatesValue));
        const stateTextData = opts.states.map((state) => {
            return { type: ApplicationTag.CHARACTER_STRING, value: state };
        });
        this.stateText = this.addProperty(new BDPolledArrayProperty(PropertyIdentifier.STATE_TEXT, () => stateTextData));
        this.presentValue = this.addProperty(new BDSingletProperty(PropertyIdentifier.PRESENT_VALUE, ApplicationTag.UNSIGNED_INTEGER, opts.writable ?? false, 1));
        this.presentValue.on('beforecov', (prop, data) => {
            if (data.value < 1 || data.value > numberOfStatesValue) {
                throw new BDError('state index out of range', ErrorCode.INCONSISTENT_PARAMETERS, ErrorClass.PROPERTY);
            }
        });
        if (opts.presentValue) {
            this.presentValue.setValue(opts.presentValue);
        }
    }
}
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