From 7fc4e864c2d5c9965a13837dc52f851f404705c8 Mon Sep 17 00:00:00 2001
From: Dmitriy-Xawstov <dmytry.xawstov@aspose.com>
Date: Fri, 30 May 2025 00:24:48 +0300
Subject: [PATCH] PDFCLOUD-4980: added snippets for Compare

---
 UsesCases/Compares/comparePdfDocuments.js | 34 +++++++++++++++++++++++
 UsesCases/Compares/comparesHelper.js      | 25 +++++++++++++++++
 UsesCases/Compares/comparesLaunch.js      | 11 ++++++++
 3 files changed, 70 insertions(+)
 create mode 100644 UsesCases/Compares/comparePdfDocuments.js
 create mode 100644 UsesCases/Compares/comparesHelper.js
 create mode 100644 UsesCases/Compares/comparesLaunch.js

diff --git a/UsesCases/Compares/comparePdfDocuments.js b/UsesCases/Compares/comparePdfDocuments.js
new file mode 100644
index 00000000..674b8580
--- /dev/null
+++ b/UsesCases/Compares/comparePdfDocuments.js
@@ -0,0 +1,34 @@
+import path from 'node:path';
+import { pdfComparesHelper, pdfApi } from "../Compares/comparesHelper.js";
+
+export const configParams = {
+    LOCAL_FOLDER: "C:\\Samples\\",
+    REMOTE_FOLDER: "Your_Temp_Pdf_Cloud",
+    PDF_DOCUMENT_1: "sample_compare_1.pdf",
+    PDF_DOCUMENT_2: "sample_compare_2.pdf",
+    PDF_OUTPUT: "output_compare.pdf",
+    REMOTE_FOLDER: "Your_Temp_Pdf_Cloud",
+};
+
+export const pdfCompares = {
+    async comparePdfDocuments(document1, document2, output_document) {
+        await pdfComparesHelper.uploadFile(document1, configParams.LOCAL_FOLDER, configParams.REMOTE_FOLDER);
+        await pdfComparesHelper.uploadFile(document2, configParams.LOCAL_FOLDER, configParams.REMOTE_FOLDER);
+
+        const remotePdf1 = path.join(configParams.REMOTE_FOLDER, document1);
+        const remotePdf2 = path.join(configParams.REMOTE_FOLDER, document2);
+        var remotePdfOut = path.join(configParams.REMOTE_FOLDER, output_document);
+
+        const response = await pdfApi.postComparePdf(remotePdf1, remotePdf2, remotePdfOut);
+        
+        if (response.body.code != 200) {
+            console.log("Unexpected error!");
+        }
+        else{
+            console.log("Compare was successful!y finished in '" + output_document + "' file.");
+            await pdfComparesHelper.downloadResult(output_document, configParams.LOCAL_FOLDER, configParams.REMOTE_FOLDER);
+        }
+    
+    }
+
+};
diff --git a/UsesCases/Compares/comparesHelper.js b/UsesCases/Compares/comparesHelper.js
new file mode 100644
index 00000000..207a5090
--- /dev/null
+++ b/UsesCases/Compares/comparesHelper.js
@@ -0,0 +1,25 @@
+import credentials from "../../../Credentials/credentials.json"  with { type: "json" };
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import { PdfApi } from "../../src/api/api.js";
+
+export const pdfApi = new PdfApi(credentials.id, credentials.key);
+
+export const pdfComparesHelper = {
+    async uploadFile (fileName, localFolder, remoteFolder) {
+        const localFilePath = path.join(localFolder, fileName);
+        const fileData = await fs.readFile(localFilePath);
+        const remoteFilePath = path.join(remoteFolder, fileName);
+        await pdfApi.uploadFile(remoteFilePath, fileData);
+        console.log("Uploaded: " + fileName);
+    },
+                            
+    async downloadResult (fileName, localFolder, remoteFolder) {
+        const remoteFilePath = path.join(remoteFolder, fileName);
+        const changedPdfData = await pdfApi.downloadFile(remoteFilePath);
+        const localFilePath = path.join(localFolder, fileName);
+        await fs.writeFile(localFilePath, changedPdfData.body);
+        console.log("Downloaded: " + localFilePath);
+    },
+
+};
diff --git a/UsesCases/Compares/comparesLaunch.js b/UsesCases/Compares/comparesLaunch.js
new file mode 100644
index 00000000..e9f83cee
--- /dev/null
+++ b/UsesCases/Compares/comparesLaunch.js
@@ -0,0 +1,11 @@
+import { pdfCompares, configParams } from "../Compares/comparePdfDocuments.js";
+
+async function main() {
+    try {
+        await pdfCompares.comparePdfDocuments(configParams.PDF_DOCUMENT_1, configParams.PDF_DOCUMENT_2, configParams.PDF_OUTPUT);
+    } catch (error) {
+        console.error("Error:", error.message);
+    }
+}
+
+await main();
\ No newline at end of file