27 lines
992 B
TypeScript
27 lines
992 B
TypeScript
import { PdfFile } from "../wrappers/PdfFile";
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import { Sorts } from "./common/pageIndexesSorting";
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import { getPages } from "./common/getPagesByIndex";
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import { parsePageIndexSpecification } from "./common/pageIndexesUtils";
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export interface ArrangePagesParamsType {
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file: PdfFile;
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arrangementConfig: string; // a member of Sorts, or a page index specification
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}
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export async function arrangePages(params: ArrangePagesParamsType) {
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const { file, arrangementConfig } = params;
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const pdfLibDocument = await file.pdfLibDocument;
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const pageCount = pdfLibDocument.getPageCount();
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let sortIndexes: number[];
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if (arrangementConfig in Sorts) {
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const sortFunction = Sorts[arrangementConfig];
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sortIndexes = sortFunction(pageCount);
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} else {
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sortIndexes = parsePageIndexSpecification(arrangementConfig, pageCount);
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}
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const newFile = await getPages(file, sortIndexes);
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newFile.filename += "arrangedPages";
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return newFile;
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}
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