@signalk/nmea0183-signalk/dist/lib/transformSource.js

A node.js/javascript parser for NMEA0183 sentences. Sentences are parsed to Signal K format.

"use strict";
/**
 * transformSource.ts
 *
 * Checks if the "source" key in each update is an object; creates the object
 * when it's a string (or absent). Returns the passed-in `data` unchanged if
 * it's not a delta object.
 */
Object.defineProperty(exports, "__esModule", { value: true });
function transformSource(data, sentence, talker) {
    if (typeof data !== 'object' || data === null) {
        return data;
    }
    const delta = data;
    if (!Array.isArray(delta.updates)) {
        return data;
    }
    delta.updates = delta.updates.map((update) => {
        if (typeof update.source === 'object' && update.source !== null) {
            return update;
        }
        const _source = update.source || '';
        const parts = _source.split(':');
        const tagTalker = parts[0];
        const tagSentence = parts[1];
        let effectiveTalker = talker;
        if (effectiveTalker === 'nmea0183') {
            effectiveTalker = 'SK';
        }
        update.source = {
            sentence: tagSentence || sentence,
            talker: tagTalker || effectiveTalker,
            type: 'NMEA0183'
        };
        return update;
    });
    return data;
}
exports.default = transformSource;
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