Medplum

// SPDX-FileCopyrightText: Copyright Orangebot, Inc. and Medplum contributors // SPDX-License-Identifier: Apache-2.0 import type { WithId } from '@medplum/core'; import { evalFhirPathTyped, toTypedValue } from '@medplum/core'; import type { Bundle, Resource } from '@medplum/fhirtypes'; /** * Care date expressions for each resource type. */ const careDateExpressions: Record<string, string> = { AllergyIntolerance: 'recordedDate', CarePlan: 'created', ClinicalImpression: 'date', Condition: 'recordedDate', DeviceUseStatement: 'recordedOn', DiagnosticReport: 'issued', Encounter: 'period.start', Goal: 'startDate', Immunization: 'occurrenceDateTime', MedicationRequest: 'authoredOn', Observation: 'issued', Procedure: 'performedDateTime', ServiceRequest: 'occurrenceDateTime', }; /** * Filters the bundle by care date. * * @param bundle - The bundle to filter. * @param start - The date range relates to care dates, not record currency dates - e.g. all records relating to care provided in a certain date range. If no start date is provided, all records prior to the end date are in scope. * @param end - The date range relates to care dates, not record currency dates - e.g. all records relating to care provided in a certain date range. If no end date is provided, all records subsequent to the start date are in scope. */ export function filterByCareDate( bundle: Bundle<WithId<Resource>>, start: string | undefined, end: string | undefined ): void { if (!bundle.entry || (!start && !end)) { return; } const isoStart = normalizeDateTime(start); const isoEnd = normalizeDateTime(end); bundle.entry = bundle.entry.filter((entry) => { const resource = entry.resource as WithId<Resource>; const isoDate = getCareDate(resource); if (!isoDate) { return true; } return (!isoStart || isoDate >= isoStart) && (!isoEnd || isoDate < isoEnd); }); } /** * Returns the care date for the given resource. * @param resource - The resource to get the care date for. * @returns The care date if available. */ export function getCareDate(resource: WithId<Resource>): string | undefined { const expr = careDateExpressions[resource.resourceType]; if (!expr) { return undefined; } return normalizeDateTime(evalFhirPathTyped(expr, [toTypedValue(resource)])?.[0]?.value); } /** * Normalizes a date time string to an ISO string. * @param input - The input string. * @returns - The normalized date time string or undefined. */ function normalizeDateTime(input: string | undefined): string | undefined { if (!input) { return undefined; } try { return new Date(input).toISOString(); } catch (_err) { return undefined; } }