Medium Support (Multi-disc Albums), Quality Grouping (#121)

* Multi Disc Stage 1 - Backend Work

* Quality Group Functionality

* Fixed: Only show wanted album types on ArtistDetail page

* Add Media Count Column to ArtistDetail Page

* Parser updates for multidisc cases, other usenet release title formats

* Search for Tracks by Medium Number in Addition to Title and TrackNumber

* Medium Renaming Token for Track Naming

* fixup Codacy and Comment Cleanup

* fixup remove comments

frontend/src/Utilities/Quality/getQualities.js

@@ -0,0 +1,16 @@
+export default function getQualities(qualities) {
+  if (!qualities) {
+    return [];
+  }
+
+  return qualities.reduce((acc, item) => {
+    if (item.quality) {
+      acc.push(item.quality);
+    } else {
+      const groupQualities = item.items.map((i) => i.quality);
+      acc.push(...groupQualities);
+    }
+
+    return acc;
+  }, []);
+}

frontend/src/Utilities/createAjaxRequest.js

@@ -1,32 +1,30 @@
 import $ from 'jquery';
 
-export default function createAjaxRequest() {
-  return function(ajaxOptions) {
-    const requestXHR = new window.XMLHttpRequest();
-    let aborted = false;
-    let complete = false;
+export default function createAjaxRequest(ajaxOptions) {
+  const requestXHR = new window.XMLHttpRequest();
+  let aborted = false;
+  let complete = false;
 
-    function abortRequest() {
-      if (!complete) {
-        aborted = true;
-        requestXHR.abort();
-      }
+  function abortRequest() {
+    if (!complete) {
+      aborted = true;
+      requestXHR.abort();
     }
+  }
 
-    const request = $.ajax({
-      xhr: () => requestXHR,
-      ...ajaxOptions
-    }).then(null, (xhr, textStatus, errorThrown) => {
-      xhr.aborted = aborted;
+  const request = $.ajax({
+    xhr: () => requestXHR,
+    ...ajaxOptions
+  }).then(null, (xhr, textStatus, errorThrown) => {
+    xhr.aborted = aborted;
 
-      return $.Deferred().reject(xhr, textStatus, errorThrown).promise();
-    }).always(() => {
-      complete = true;
-    });
+    return $.Deferred().reject(xhr, textStatus, errorThrown).promise();
+  }).always(() => {
+    complete = true;
+  });
 
-    return {
-      request,
-      abortRequest
-    };
+  return {
+    request,
+    abortRequest
   };
 }