Make label comparison case insensitive (#517)

* Make label comparison case insensitive

* PR Feedback

src/classes/issues-processor.ts

@@ -8,6 +8,7 @@ import {isDateMoreRecentThan} from '../functions/dates/is-date-more-recent-than'
 import {isValidDate} from '../functions/dates/is-valid-date';
 import {isBoolean} from '../functions/is-boolean';
 import {isLabeled} from '../functions/is-labeled';
+import { cleanLabel } from '../functions/clean-label';
 import {shouldMarkWhenStale} from '../functions/should-mark-when-stale';
 import {wordsToList} from '../functions/words-to-list';
 import {IComment} from '../interfaces/comment';
@@ -536,7 +537,7 @@ export class IssuesProcessor {
     const reversedEvents = events.reverse();
 
     const staleLabeledEvent = reversedEvents.find(
-      event => event.event === 'labeled' && event.label.name === label
+      event => event.event === 'labeled' && cleanLabel(event.label.name) === cleanLabel(label)
     );
 
     if (!staleLabeledEvent) {

src/functions/clean-label.ts

@@ -0,0 +1,14 @@
+import deburr from 'lodash.deburr';
+import { CleanLabel } from '../types/clean-label';
+
+/**
+ * @description
+ * Clean a label by lowercasing it and deburring it for consistency
+ *
+ * @param {string} label A raw GitHub label
+ *
+ * @return {string} A lowercased, deburred version of the passed in label
+ */
+export function cleanLabel(label: Readonly<string>): CleanLabel {
+    return deburr(label.toLowerCase());
+}

src/functions/is-labeled.ts

@@ -1,7 +1,6 @@
-import deburr from 'lodash.deburr';
 import {Issue} from '../classes/issue';
 import {ILabel} from '../interfaces/label';
-import {CleanLabel} from '../types/clean-label';
+import {cleanLabel} from './clean-label';
 
 /**
  * @description
@@ -20,7 +19,3 @@ export function isLabeled(
     return cleanLabel(label) === cleanLabel(issueLabel.name);
   });
 }
-
-function cleanLabel(label: Readonly<string>): CleanLabel {
-  return deburr(label.toLowerCase());
-}