Feat/882: default model setting for en-IN language (#888)

* feat/882: default model setting for en-IN language

* feat/882: refactored if into ||

lib/utils/transcription-utils.js

@@ -142,7 +142,6 @@ const optimalDeepramModels = {
   tr: ['nova-2', 'nova-2'],
   uk: ['nova-2', 'nova-2']
 };
-
 const selectDefaultDeepgramModel = (task, language) => {
   if (language in optimalDeepramModels) {
     const [gather, transcribe] = optimalDeepramModels[language];
@@ -151,6 +150,24 @@ const selectDefaultDeepgramModel = (task, language) => {
   return 'base';
 };
 
+const optimalGoogleModels = {
+  'v1' : {
+    'en-IN':['telephony', 'latest_long']
+  },
+  'v2' : {
+    'en-IN':['telephony', 'long']
+  }
+};
+const selectDefaultGoogleModel = (task, language, version) => {
+  const useV2 = version === 'v2';
+  if (language in optimalGoogleModels[version]) {
+    const [gather, transcribe] = optimalGoogleModels[version][language];
+    return task.name === TaskName.Gather ? gather : transcribe;
+  }
+  return task.name === TaskName.Gather ?
+    (useV2 ? 'telephony_short' : 'command_and_search') :
+    (useV2 ? 'long' : 'latest_long');
+};
 const consolidateTranscripts = (bufferedTranscripts, channel, language, vendor) => {
   if (bufferedTranscripts.length === 1) return bufferedTranscripts[0];
   let totalConfidence = 0;
@@ -497,9 +514,9 @@ module.exports = (logger) => {
 
     if ('google' === vendor) {
       const useV2 = rOpts.googleOptions?.serviceVersion === 'v2';
-      const model = task.name === TaskName.Gather ?
+      const version = useV2 ? 'v2' : 'v1';
-        (useV2 ? 'telephony_short' : 'command_and_search') :
+      let {model} = rOpts;
-        (useV2 ? 'long' : 'latest_long');
+      model = model || selectDefaultGoogleModel(task, language, version);
       opts = {
         ...opts,
         ...(sttCredentials && {GOOGLE_APPLICATION_CREDENTIALS: JSON.stringify(sttCredentials.credentials)}),