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https://github.com/Frooodle/Stirling-PDF.git
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127 lines
5.1 KiB
JavaScript
127 lines
5.1 KiB
JavaScript
import { mergePDFs } from "./functions/mergePDFs.js";
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import { organizeWaitOperations } from "./organizeWaitOperations.js";
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export async function traverseOperations(operations, input) {
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const waitOperations = organizeWaitOperations(operations);
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const results = [];
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await nextOperation(operations, input);
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return results;
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async function nextOperation(operations, input) {
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if(Array.isArray(operations) && operations.length == 0) { // isEmpty
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console.log("operation done: " + input.fileName);
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results.push(input);
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return;
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}
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for (let i = 0; i < operations.length; i++) {
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console.warn(input);
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await computeOperation(operations[i], structuredClone(input)); // break references
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}
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}
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async function computeOperation(operation, input) {
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switch (operation.type) {
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case "done":
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console.log("Done operation will get called if all waits are done. Skipping for now.")
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break;
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case "wait":
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const waitOperation = waitOperations[operation.values.id];
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waitOperation.input.push(input);
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waitOperation.waitCount--;
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if(waitOperation.waitCount == 0) {
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await nextOperation(waitOperation.doneOperation.operations, waitOperation.input);
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}
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break;
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case "removeObjects":
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if(Array.isArray(input)) {
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for (let i = 0; i < input.length; i++) {
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// TODO: modfiy input
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input[i].fileName += "_removedObjects";
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await nextOperation(operation.operations, input[i]);
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}
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}
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else {
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// TODO: modfiy input
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input.fileName += "_removedObjects";
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await nextOperation(operation.operations, input);
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}
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break;
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case "extract":
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if(Array.isArray(input)) {
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for (let i = 0; i < input.length; i++) {
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// TODO: modfiy input
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input[i].fileName += "_extractedPages";
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await nextOperation(operation.operations, input[i]);
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}
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}
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else {
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// TODO: modfiy input
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input.fileName += "_extractedPages";
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await nextOperation(operation.operations, input);
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}
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break;
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case "fillField":
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if(Array.isArray(input)) {
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for (let i = 0; i < input.length; i++) {
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// TODO: modfiy input
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input[i].fileName += "_filledField";
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await nextOperation(operation.operations, input[i]);
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}
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}
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else {
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// TODO: modfiy input
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input.fileName += "_filledField";
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await nextOperation(operation.operations, input);
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}
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break;
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case "extractImages":
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if(Array.isArray(input)) {
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for (let i = 0; i < input.length; i++) {
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// TODO: modfiy input
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input[i].fileName += "_extractedImages";
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await nextOperation(operation.operations, input[i]);
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}
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}
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else {
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// TODO: modfiy input
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input.fileName += "_extractedImages";
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await nextOperation(operation.operations, input);
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}
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break;
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case "merge":
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if(Array.isArray(input) && input.length > 1) {
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const inputs = input;
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input = {
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originalFileName: inputs.map(input => input.originalFileName).join("_and_"),
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fileName: inputs.map(input => input.fileName).join("_and_") + "_merged",
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buffer: await mergePDFs(inputs.map(input => input.buffer))
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}
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}
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else {
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// Only one input, no need to merge
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input.fileName += "_merged";
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}
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await nextOperation(operation.operations, input);
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break;
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case "transform": {
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if(Array.isArray(input)) {
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for (let i = 0; i < input.length; i++) {
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// TODO: modfiy input
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input[i].fileName += "_transformed";
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await nextOperation(operation.operations, input[i]);
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}
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}
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else {
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// TODO: modfiy input
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input.fileName += "_transformed";
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await nextOperation(operation.operations, input);
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}
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break;
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}
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default:
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console.log("operation type unknown: ", operation.type);
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break;
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}
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}
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} |