55 lines
1.6 KiB
TypeScript
55 lines
1.6 KiB
TypeScript
import {
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FractalPaginatedResponse,
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FractalResponseData,
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FractalResponseList,
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getPaginationSet,
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PaginatedResult,
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} from '@/api/http';
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import { Model } from '@definitions/index';
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type TransformerFunc<T> = (callback: FractalResponseData) => T;
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const isList = (data: FractalResponseList | FractalResponseData): data is FractalResponseList => data.object === 'list';
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function transform<T, M>(data: null | undefined, transformer: TransformerFunc<T>, missing?: M): M;
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function transform<T, M>(
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data: FractalResponseData | null | undefined,
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transformer: TransformerFunc<T>,
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missing?: M
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): T | M;
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function transform<T, M>(
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data: FractalResponseList | FractalPaginatedResponse | null | undefined,
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transformer: TransformerFunc<T>,
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missing?: M
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): T[] | M;
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function transform<T>(
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data: FractalResponseData | FractalResponseList | FractalPaginatedResponse | null | undefined,
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transformer: TransformerFunc<T>,
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missing = undefined
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) {
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if (data === undefined || data === null) {
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return missing;
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}
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if (isList(data)) {
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return data.data.map(transformer);
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}
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if (!data || !data.attributes || data.object === 'null_resource') {
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return missing;
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}
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return transformer(data);
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}
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function toPaginatedSet<T extends TransformerFunc<Model>>(
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response: FractalPaginatedResponse,
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transformer: T
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): PaginatedResult<ReturnType<T>> {
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return {
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items: transform(response, transformer) as ReturnType<T>[],
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pagination: getPaginationSet(response.meta.pagination),
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};
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}
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export { transform, toPaginatedSet };
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