47 lines
1.5 KiB
TypeScript
47 lines
1.5 KiB
TypeScript
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import { ClassicPreset } from 'rete';
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import { BaseWorkflowNode } from './base-node';
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import { pdfSocket } from '../sockets';
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import type { SocketData } from '../types';
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import { requirePdfInput, processBatch } from '../types';
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import { rotatePdfUniform } from '../../utils/pdf-operations';
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import { PDFDocument } from 'pdf-lib';
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export class RotateNode extends BaseWorkflowNode {
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readonly category = 'Organize & Manage' as const;
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readonly icon = 'ph-arrow-clockwise';
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readonly description = 'Rotate all pages';
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constructor() {
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super('Rotate');
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this.addInput('pdf', new ClassicPreset.Input(pdfSocket, 'PDF'));
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this.addOutput('pdf', new ClassicPreset.Output(pdfSocket, 'Rotated PDF'));
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this.addControl(
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'angle',
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new ClassicPreset.InputControl('text', { initial: '90' })
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);
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}
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async data(
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inputs: Record<string, SocketData[]>
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): Promise<Record<string, SocketData>> {
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const pdfInputs = requirePdfInput(inputs, 'Rotate');
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const angleControl = this.controls['angle'] as
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| ClassicPreset.InputControl<'text'>
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| undefined;
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const angle = parseInt(angleControl?.value ?? '90', 10) || 90;
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return {
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pdf: await processBatch(pdfInputs, async (input) => {
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const resultBytes = await rotatePdfUniform(input.bytes, angle);
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const resultDoc = await PDFDocument.load(resultBytes);
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return {
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type: 'pdf',
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document: resultDoc,
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bytes: resultBytes,
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filename: input.filename.replace(/\.pdf$/i, '_rotated.pdf'),
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};
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}),
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};
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}
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}
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