Add debug log url when submitting it to Support

ts/util/createSupportUrl.ts

@@ -0,0 +1,63 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+// the support only provides a subset of languages available within the app
+// so we have to list them out here and fallback to english if not included
+const SUPPORT_LANGUAGES = [
+  'ar',
+  'bn',
+  'de',
+  'en-us',
+  'es',
+  'fr',
+  'hi',
+  'hi-in',
+  'hc',
+  'id',
+  'it',
+  'ja',
+  'ko',
+  'mr',
+  'ms',
+  'nl',
+  'pl',
+  'pt',
+  'ru',
+  'sv',
+  'ta',
+  'te',
+  'tr',
+  'uk',
+  'ur',
+  'vi',
+  'zh-cn',
+  'zh-tw',
+];
+
+export type CreateSupportUrlOptionsType = Readonly<{
+  locale: string;
+  query?: Record<string, string>;
+}>;
+
+export function createSupportUrl({
+  locale,
+  query = {},
+}: CreateSupportUrlOptionsType): string {
+  const language = SUPPORT_LANGUAGES.includes(locale) ? locale : 'en-us';
+
+  // This URL needs a hardcoded language because the '?desktop' is dropped if
+  //   the page auto-redirects to the proper URL
+  const url = new URL(`https://support.signal.org/hc/${language}/requests/new`);
+
+  url.searchParams.set('desktop', '');
+
+  for (const key of Object.keys(query)) {
+    if (key === 'desktop') {
+      continue;
+    }
+    url.searchParams.set(key, query[key]);
+  }
+
+  // Support page requires `?desktop&...` not `?desktop=&...`
+  return url.toString().replace('desktop=', 'desktop');
+}