@dotbase/hl7-v2-message/lib/2.6/parser/fieldParser.js

Parses HL7 v2.x messages into typed javascript objects and makes them easily accessable.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class FieldParser {
    static initSegmentFields(segment, rawSegment) {
        if (!FieldParser.validateFieldLength(segment.fields, rawSegment.fields)) {
            throw Error(`Number of fields in raw segment ${rawSegment.type} does not match required number of fields`);
        }
        return FieldParser.setFieldValues(segment, rawSegment);
    }
    static setFieldValues(segment, rawSegment) {
        rawSegment.fields.forEach((value, index) => FieldParser.setFieldValue(segment, value, index));
        return segment;
    }
    static setFieldValue(segment, rawValue, index) {
        for (const field of Object.values(segment.fields)) {
            if (field.index === index)
                field.value = rawValue;
        }
        return segment;
    }
    static validateFieldLength(segmentFields, rawSegmentFields) {
        const maxFields = Object.entries(segmentFields).length;
        const minFields = FieldParser.getMandatoryFields(segmentFields) + 1;
        if (rawSegmentFields.length < minFields || rawSegmentFields.length > maxFields)
            return false;
        return true;
    }
    static getMandatoryFields(segmentFields) {
        let minFieldIndex = 0;
        for (const field of Object.values(segmentFields)) {
            if (field.isOptional === false && field.index >= minFieldIndex)
                minFieldIndex = field.index;
        }
        return minFieldIndex;
    }
}
exports.default = FieldParser;