Medplum

// SPDX-FileCopyrightText: Copyright Orangebot, Inc. and Medplum contributors // SPDX-License-Identifier: Apache-2.0 import type { Period } from '@medplum/fhirtypes'; import type { CcdaEffectiveTime } from './types'; /* * C-CDA date/time formats: * 1. YYYY * 2. YYYYMMDD * 3. YYYYMMDDHHMM * 4. YYYYMMDDHHMMSS * 5. YYYYMMDDHHMM-TZ * 6. YYYYMMDDHHMMSS-TZ * * FHIR date formats: * 1. YYYY * 2. YYYY-MM-DD * * FHIR date/time formats: * 1. YYYY-MM-DDTHH:MM:SS-TZ */ /** * Map the C-CDA date to the FHIR date. * @param date - The C-CDA date. * @returns The FHIR date. */ export function mapCcdaToFhirDate(date: string | undefined): string | undefined { if (!date) { return undefined; } const year = date.substring(0, 4); let month = '01'; let day = '01'; if (date.length >= 8) { month = date.substring(4, 6); day = date.substring(6, 8); } return `${year}-${month}-${day}`; } /** * Map the C-CDA date time to the FHIR date time. * @param dateTime - The C-CDA date time. * @returns The FHIR date time. */ export function mapCcdaToFhirDateTime(dateTime: string | undefined): string | undefined { if (!dateTime) { return undefined; } const year = dateTime.substring(0, 4); let month = '01'; let day = '01'; let hour = '00'; let minute = '00'; let second = '00'; let tz = 'Z'; if (dateTime.length >= 8) { month = dateTime.substring(4, 6); day = dateTime.substring(6, 8); } if (dateTime.length >= 12) { hour = dateTime.substring(8, 10); minute = dateTime.substring(10, 12); } if (dateTime.length >= 14) { second = dateTime.substring(12, 14); } if (dateTime.length > 14) { tz = dateTime.substring(14); if (tz === '+0000') { tz = 'Z'; } } return `${year}-${month}-${day}T${hour}:${minute}:${second}${tz}`; } /** * Map the FHIR date to the C-CDA date. * @param date - The FHIR date. * @returns The C-CDA date. */ export function mapFhirToCcdaDate(date: string | undefined): string | undefined { if (!date) { return undefined; } return date.substring(0, 10).replaceAll('-', ''); } /** * Map the FHIR date time to the C-CDA date time. * @param dateTime - The FHIR date time. * @returns The C-CDA date time. */ export function mapFhirToCcdaDateTime(dateTime: string | undefined): string | undefined { if (!dateTime) { return undefined; } const [date, time] = dateTime.split('T'); const outDate = date.replaceAll('-', ''); // Remove dashes const outTime = (time ?? '') .replaceAll(/\.\d+/g, '') // Remove decimal point seconds .replaceAll(':', '') // Remove colons .replaceAll('Z', '+0000'); // Replace Z with +0000 return `${outDate}${outTime}`; } export function mapFhirPeriodOrDateTimeToCcda( period: Period | undefined, dateTime: string | undefined ): CcdaEffectiveTime { if (period?.start || period?.end) { const effectiveTime: CcdaEffectiveTime = {}; if (period.start) { effectiveTime.low = { '@_value': mapFhirToCcdaDateTime(period.start) ?? '' }; } if (period.end) { effectiveTime.high = { '@_value': mapFhirToCcdaDateTime(period.end) ?? '' }; } return effectiveTime; } if (dateTime) { return { '@_value': mapFhirToCcdaDateTime(dateTime) ?? '' }; } return {}; }