initial implementation of attachmentsetting

src/services/file_type/file_type.service.js

@@ -1,7 +1,7 @@
 // TODO this func might as well take the entire file and use its mimetype
 // or the entire service could be just mimetype service that only operates
 // on mimetypes and not files. Currently the naming is confusing.
-const fileType = mimetype => {
+export const fileType = mimetype => {
   if (mimetype.match(/flash/)) {
     return 'flash'
   }
@@ -25,11 +25,25 @@ const fileType = mimetype => {
   return 'unknown'
 }
 
-const fileMatchesSomeType = (types, file) =>
+export const fileTypeExt = url => {
+  if (url.match(/\.(png|jpe?g|gif|webp|avif)$/)) {
+    return 'image'
+  }
+  if (url.match(/\.(ogv|mp4|webm|mov)$/)) {
+    return 'video'
+  }
+  if (url.match(/\.(it|s3m|mod|umx|mp3|aac|m4a|flac|alac|ogg|oga|opus|wav|ape|midi?)$/)) {
+    return 'audio'
+  }
+  return 'unknown'
+}
+
+export const fileMatchesSomeType = (types, file) =>
   types.some(type => fileType(file.mimetype) === type)
 
 const fileTypeService = {
   fileType,
+  fileTypeExt,
   fileMatchesSomeType
 }