Medplum

// SPDX-FileCopyrightText: Copyright Orangebot, Inc. and Medplum contributors // SPDX-License-Identifier: Apache-2.0 import type { InternalSchemaElement, MedplumClient, SliceDefinitionWithTypes, SlicingRules } from '@medplum/core'; import { getValueSliceName, isPopulated, isSliceDefinitionWithTypes, tryGetProfile } from '@medplum/core'; export function assignValuesIntoSlices<T>( values: T[], slices: SliceDefinitionWithTypes[], slicing: SlicingRules | undefined, profileUrl: string | undefined ): T[][] { if (!isPopulated(slicing?.slices)) { return [values]; } // store values in an array of arrays: one for each slice plus another for non-sliced values const slicedValues: T[][] = new Array(slices.length + 1); for (let i = 0; i < slicedValues.length; i++) { slicedValues[i] = []; } for (const value of values) { const sliceName = getValueSliceName(value, slices, slicing.discriminator, profileUrl); let sliceIndex = sliceName ? slices.findIndex((slice) => slice.name === sliceName) : -1; // -1 can come from either findIndex or the ternary else if (sliceIndex === -1) { sliceIndex = slices.length; } slicedValues[sliceIndex].push(value); } return slicedValues; } export async function prepareSlices({ medplum, property, }: { medplum: MedplumClient; property: InternalSchemaElement; }): Promise<SliceDefinitionWithTypes[]> { return new Promise((resolve, reject) => { if (!property.slicing) { resolve([]); return; } const supportedSlices: SliceDefinitionWithTypes[] = []; const profileUrls: (string | undefined)[] = []; const promises: Promise<void>[] = []; for (const slice of property.slicing.slices) { if (!isSliceDefinitionWithTypes(slice)) { console.debug('Unsupported slice definition', slice); continue; } let profileUrl: string | undefined; // If elements are not defined for the slice, look for a profile if (!isPopulated(slice.elements)) { profileUrl = slice.type[0]?.profile?.[0]; } // important to keep these three arrays the same length; supportedSlices.push(slice); profileUrls.push(profileUrl); if (profileUrl) { promises.push(medplum.requestProfileSchema(profileUrl)); } } Promise.all(promises) .then(() => { for (let i = 0; i < supportedSlices.length; i++) { const slice = supportedSlices[i]; const profileUrl = profileUrls[i]; if (profileUrl) { const typeSchema = tryGetProfile(profileUrl); slice.typeSchema = typeSchema; } } resolve(supportedSlices); }) .catch(reject); }); }