Allow a worker to specify the needed size of the image

Closes #231 (closed)

arkindex_worker/cache.py

@@ -157,17 +157,8 @@ class CachedElement(Model):
                 max_height is None or self.image.height <= max_height
             ):
                 resize = "full"
-            elif max_width is not None and max_height is not None:
-                resize = f"{max_width},{max_height}"
             else:
-                ratio = max(
-                    (max_width or 0) / self.image.width,
-                    (max_height or 0) / self.image.height,
-                )
-                new_width, new_height = int(self.image.width * ratio), int(
-                    self.image.height * ratio
-                )
-                resize = f"{new_width},{new_height}"
+                resize = f"{max_width or ''},{max_height or ''}"
 
         url = self.image.url
         if not url.endswith("/"):