sbs20 · sbs20 · Sep 25, 2023 · Sep 25, 2023
diff --git a/.gitignore b/.gitignore
@@ -96,6 +96,7 @@ dist
 **/server/config/devices.json
 **/server/data/output/*
 **/server/data/temp/*
+**/server/data/thumbnail/*
 **/server/data/preview/*.tif
 **/scan*.jpg
 **/config.local.js

diff --git a/packages/server/src/api.js b/packages/server/src/api.js
@@ -32,6 +32,10 @@ module.exports = new class Api {
    */
   fileDelete(name) {
     log.trace('fileDelete()');
+    const thumbnail = FileInfo.unsafe(config.thumbnailDirectory, name);
+    if (thumbnail.exists()) {
+      thumbnail.delete();
+    }
     const file = FileInfo.unsafe(config.outputDirectory, name);
     return file.delete();
   }
@@ -127,7 +131,14 @@ module.exports = new class Api {
   async readThumbnail(name) {
     const source = FileInfo.unsafe(config.outputDirectory, name);
     if (source.extension !== '.zip') {
-      return await Process.spawn(`convert '${source.fullname}'[0] -resize 256 -quality 75 jpg:-`);
+      const thumbnail = FileInfo.unsafe(config.thumbnailDirectory, name);
+      if (thumbnail.exists()) {
+        return thumbnail.toBuffer();
+      } else {
+        const buffer = await Process.spawn(`convert '${source.fullname}'[0] -resize 256 -quality 75 jpg:-`);
+        thumbnail.save(buffer);
+        return buffer;
+      }
     }
     return [];
   }

diff --git a/packages/server/src/classes/config.js b/packages/server/src/classes/config.js
@@ -48,6 +48,7 @@ module.exports = class Config {
 
       devicesPath: './config/devices.json',
       outputDirectory: 'data/output',
+      thumbnailDirectory: 'data/thumbnail',
       previewDirectory: 'data/preview',
       tempDirectory: 'data/temp',
 

diff --git a/packages/server/src/configure.js b/packages/server/src/configure.js
@@ -64,13 +64,15 @@ function initialize(rootPath) {
     Object.assign(config, {
       devicesPath: rootPath + config.devicesPath,
       outputDirectory: rootPath + config.outputDirectory,
+      thumbnailDirectory: rootPath + config.thumbnailDirectory,
       previewDirectory: rootPath + config.previewDirectory,
       tempDirectory: rootPath + config.tempDirectory
     });
   }
 
   try {
     fs.mkdirSync(config.outputDirectory, { recursive: true });
+    fs.mkdirSync(config.thumbnailDirectory, { recursive: true });
     fs.mkdirSync(config.tempDirectory, { recursive: true });
   } catch (exception) {
     log.warn(`Error ensuring output and temp directories exist: ${exception}`);
@@ -204,6 +206,10 @@ function configure(app, rootPath) {
       const newName = req.body.newName;
       await FileInfo.unsafe(config.outputDirectory, name)
         .rename(newName);
+      const thumbnail = FileInfo.unsafe(config.thumbnailDirectory, name);
+      if (thumbnail.exists()) {
+        thumbnail.rename(newName);
+      }
       res.send('200');
     } catch (error) {
       sendError(res, 500, error);

diff --git a/packages/server/src/types.js b/packages/server/src/types.js
@@ -71,6 +71,7 @@
  * @property {string} tesseract
  * @property {string} devicesPath
  * @property {string} outputDirectory
+ * @property {string} thumbnailDirectory
  * @property {string} previewDirectory
  * @property {string} tempDirectory
  * @property {number} previewResolution