Refactor getImages function to enhance verbose logging and improve folder existence checks

src/getImages.js

@@ -1,21 +1,30 @@
 const fs = require("fs");
 
+const VERBOSE = process.env.VERBOSE === "1" || process.env.VERBOSE === "true";
+
 const CSV_FILE = process.env.CSV_FILE || "./uploads/sha1.csv";
 const IMAGE_BASE_URL = process.env.IMAGE_BASE_URL || "https://placehold.co/";
 
-function getImages() {
-  console.log(`[pictshare-browse] Loading CSV file from: ${CSV_FILE}`);
-  if (!fs.existsSync(CSV_FILE)) return [];
 
-  return fs
-    .readFileSync(CSV_FILE, "utf-8")
-    .split("\n")
+function getImages() {
+  if (VERBOSE) console.log(`[pictshare-browse] Loading CSV file from: ${CSV_FILE}`);
+  if (!fs.existsSync(CSV_FILE)) {
+    if (VERBOSE) console.warn(`[pictshare-browse] CSV file does not exist: ${CSV_FILE}`);
+    return [];
+  }
+
+  const lines = fs.readFileSync(CSV_FILE, "utf-8").split("\n");
+  if (VERBOSE) console.log(`[pictshare-browse] CSV file line count: ${lines.length}`);
+  let skipped = 0;
+  const images = lines
     .filter(line => line.includes(";"))
     .map(line => {
       const [hash, filename] = line.split(";");
       const folderPath = `./uploads/${filename.trim()}`;
       if (!fs.existsSync(folderPath) || !fs.lstatSync(folderPath).isDirectory()) {
-        return null; // Skip if folder does not exist
+        skipped++;
+        if (VERBOSE) console.warn(`[pictshare-browse] Skipping: ${filename.trim()} (missing folder: ${folderPath})`);
+        return null;
       }
       return {
         url: `${IMAGE_BASE_URL.replace(/\/$/, "")}/${filename.trim()}`,
@@ -23,7 +32,9 @@ function getImages() {
         hash: hash,
       };
     })
-    .filter(Boolean); // Remove nulls from skipped items
+    .filter(Boolean);
+  if (VERBOSE) console.log(`[pictshare-browse] Images loaded: ${images.length}, Skipped: ${skipped}`);
+  return images;
 }
 
 module.exports = getImages;