make non-ja audio work without configuration (#1152)

* add audio source for wiktionary format filenames on commons

* allow region codes

* fix files being saved in anki as mp3

* wip

* refactor _getAvailableAudioSourceTypes

* update docs

* wording

* single line list

* fix no anki audio

1 files changed, 27 insertions, 1 deletions

diff --git a/ext/js/media/audio-downloader.js b/ext/js/media/audio-downloader.js
index 99ca1dfd..17911c3e 100644
--- a/ext/js/media/audio-downloader.js
+++ b/ext/js/media/audio-downloader.js
@@ -90,7 +90,8 @@ export class AudioDownloader {
      */
     async downloadTermAudio(sources, preferredAudioIndex, term, reading, idleTimeout, languageSummary) {
         const errors = [];
-        for (const source of sources) {
+        const requiredAudioSources = this._getRequiredAudioSources(languageSummary.iso, sources);
+        for (const source of [...sources, ...requiredAudioSources]) {
             let infoList = await this.getTermAudioInfoList(source, term, reading, languageSummary);
             if (typeof preferredAudioIndex === 'number') {
                 infoList = (preferredAudioIndex >= 0 && preferredAudioIndex < infoList.length ? [infoList[preferredAudioIndex]] : []);
@@ -116,6 +117,31 @@ export class AudioDownloader {
     // Private
 
     /**
+     * @param {string} language
+     * @param {import('audio').AudioSourceInfo[]} sources
+     * @returns {import('audio').AudioSourceInfo[]}
+     */
+    _getRequiredAudioSources(language, sources) {
+        /** @type {Set<import('settings').AudioSourceType>} */
+        const requiredSources = language === 'ja' ?
+            new Set([
+                'jpod101',
+                'jpod101-alternate',
+                'jisho',
+            ]) :
+            new Set([
+                'lingua-libre',
+                'wiktionary',
+            ]);
+
+        for (const {type} of sources) {
+            requiredSources.delete(type);
+        }
+
+        return [...requiredSources].map((type) => ({type, url: '', voice: ''}));
+    }
+
+    /**
      * @param {string} url
      * @param {string} base
      * @returns {string}