Added dark and SFW modes.

src/media.js

@@ -22,11 +22,32 @@ function getHash(buffer) {
     return hash.digest('hex');
 }
 
-async function createThumbnail(buffer) {
+async function getMeta(buffer, withHash = false) {
+    try {
+        const { entropy } = await sharp(buffer).stats();
+        const { width, height, size } = await sharp(buffer).metadata();
+
+        const hash = withHash && getHash(buffer);
+
+        return {
+            width,
+            height,
+            size,
+            entropy,
+            hash,
+        };
+    } catch (error) {
+        logger.warn(`Failed to retrieve image entropy, using 7.5: ${error.message}`);
+
+        return 7.5;
+    }
+}
+
+async function createThumbnail(buffer, height = config.media.thumbnailSize) {
     try {
         const thumbnail = sharp(buffer)
             .resize({
-                height: config.media.thumbnailSize,
+                height,
                 withoutEnlargement: true,
             })
             .jpeg({
@@ -101,24 +122,6 @@ function pickQuality(items) {
     return item || items[0];
 }
 
-async function getMeta(buffer) {
-    try {
-        const { entropy } = await sharp(buffer).stats();
-        const { width, height, size } = await sharp(buffer).metadata();
-
-        return {
-            width,
-            height,
-            size,
-            entropy,
-        };
-    } catch (error) {
-        logger.warn(`Failed to retrieve image entropy, using 7.5: ${error.message}`);
-
-        return 7.5;
-    }
-}
-
 async function extractItem(source) {
     // const res = await bhttp.get(source.src);
     const res = await get(source.src);
@@ -434,7 +437,10 @@ async function associateMedia(sourcesByTargetId, mediaBySource, domain, role, pr
 }
 
 module.exports = {
+    associateMedia,
+    createThumbnail,
+    getHash,
+    getMeta,
     pluckItems,
     storeMedia,
-    associateMedia,
 };