1 files changed, 22 insertions, 28 deletions

diff --git a/src/server/ApiManagers/PDFManager.ts b/src/server/ApiManagers/PDFManager.ts
index e419d3ac4..d634a241d 100644
--- a/src/server/ApiManagers/PDFManager.ts
+++ b/src/server/ApiManagers/PDFManager.ts
@@ -1,31 +1,26 @@
-import ApiManager, { Registration } from "./ApiManager";
-import { Method } from "../RouteManager";
-import RouteSubscriber from "../RouteSubscriber";
-import { existsSync, createReadStream, createWriteStream } from "fs";
-import * as Pdfjs from 'pdfjs-dist/legacy/build/pdf';
-import { createCanvas } from "canvas";
-const imageSize = require("probe-image-size");
-import * as express from "express";
-import * as path from "path";
-import { Directory, serverPathToFile, clientPathToFile, pathToDirectory } from "./UploadManager";
-import { red } from "colors";
-import { resolve } from "path";
+import ApiManager, { Registration } from './ApiManager';
+import { Method } from '../RouteManager';
+import RouteSubscriber from '../RouteSubscriber';
+import { existsSync, createReadStream, createWriteStream } from 'fs';
+//import * as Pdfjs from 'pdfjs-dist';
+import { createCanvas } from 'canvas';
+const imageSize = require('probe-image-size');
+import * as express from 'express';
+import { Directory, serverPathToFile, clientPathToFile, pathToDirectory } from './UploadManager';
+import { red } from 'colors';
+import { resolve } from 'path';
 
 export default class PDFManager extends ApiManager {
-
     protected initialize(register: Registration): void {
-
         register({
             method: Method.POST,
-            subscription: new RouteSubscriber("thumbnail"),
+            subscription: new RouteSubscriber('thumbnail'),
             secureHandler: async ({ req, res }) => {
                 const { coreFilename, pageNum, subtree } = req.body;
                 return getOrCreateThumbnail(coreFilename, pageNum, res, subtree);
-            }
+            },
         });
-
     }
-
 }
 
 async function getOrCreateThumbnail(coreFilename: string, pageNum: number, res: express.Response, subtree?: string): Promise<void> {
@@ -51,7 +46,7 @@ async function getOrCreateThumbnail(coreFilename: string, pageNum: number, res:
 }
 
 async function CreateThumbnail(coreFilename: string, pageNum: number, res: express.Response, subtree?: string) {
-    const part1 = subtree ?? "";
+    const part1 = subtree ?? '';
     const filename = `${part1}${coreFilename}.pdf`;
     const sourcePath = resolve(pathToDirectory(Directory.pdfs), filename);
     const documentProxy = await Pdfjs.getDocument(sourcePath).promise;
@@ -62,7 +57,7 @@ async function CreateThumbnail(coreFilename: string, pageNum: number, res: expre
     const renderContext = {
         canvasContext: context,
         canvasFactory: factory,
-        viewport
+        viewport,
     };
     await page.render(renderContext).promise;
     const pngStream = canvas.createPNGStream();
@@ -71,11 +66,11 @@ async function CreateThumbnail(coreFilename: string, pageNum: number, res: expre
     const out = createWriteStream(pngFile);
     pngStream.pipe(out);
     return new Promise<void>((resolve, reject) => {
-        out.on("finish", () => {
+        out.on('finish', () => {
             dispatchThumbnail(res, viewport, resolved);
             resolve();
         });
-        out.on("error", error => {
+        out.on('error', error => {
             console.log(red(`In PDF thumbnail creation, encountered the following error when piping ${pngFile}:`));
             console.log(error);
             reject();
@@ -87,30 +82,29 @@ function dispatchThumbnail(res: express.Response, { width, height }: Pdfjs.PageV
     res.send({
         path: clientPathToFile(Directory.pdf_thumbnails, thumbnailName),
         width,
-        height
+        height,
     });
 }
 
 class NodeCanvasFactory {
-
     create = (width: number, height: number) => {
         const canvas = createCanvas(width, height);
         const context = canvas.getContext('2d');
         return {
             canvas,
-            context
+            context,
         };
-    }
+    };
 
     reset = (canvasAndContext: any, width: number, height: number) => {
         canvasAndContext.canvas.width = width;
         canvasAndContext.canvas.height = height;
-    }
+    };
 
     destroy = (canvasAndContext: any) => {
         canvasAndContext.canvas.width = 0;
         canvasAndContext.canvas.height = 0;
         canvasAndContext.canvas = null;
         canvasAndContext.context = null;
-    }
+    };
 }