initial changes to support wellsaid tts (#29)

lib/routes/api/speech-credentials.js

@@ -10,7 +10,8 @@ const {
   testAwsTts,
   testAwsStt,
   testMicrosoftStt,
-  testMicrosoftTts
+  testMicrosoftTts,
+  testWellSaidTts
 } = require('../../utils/speech-utils');
 
 router.post('/', async(req, res) => {
@@ -66,6 +67,12 @@ router.post('/', async(req, res) => {
       });
       encrypted_credential = encrypt(data);
     }
+    else if (vendor === 'wellsaid') {
+      const data = JSON.stringify({
+        api_key
+      });
+      encrypted_credential = encrypt(data);
+    }
     else throw new DbErrorBadRequest(`invalid speech vendor ${vendor}`);
     const uuid = await SpeechCredential.make({
       account_sid,
@@ -109,6 +116,10 @@ router.get('/', async(req, res) => {
         obj.api_key = o.api_key;
         obj.region = o.region;
       }
+      else if ('wellsaid' === obj.vendor) {
+        const o = decrypt(credential);
+        obj.api_key = o.api_key;
+      }
       return obj;
     }));
   } catch (err) {
@@ -291,6 +302,19 @@ router.get('/:sid/test', async(req, res) => {
         }
       }
     }
+    else if (cred.vendor === 'wellsaid') {
+      const {api_key} = credential;
+      if (cred.use_for_tts) {
+        try {
+          await testWellSaidTts(logger, {api_key});
+          results.tts.status = 'ok';
+          SpeechCredential.ttsTestResult(sid, true);
+        } catch (err) {
+          results.tts = {status: 'fail', reason: err.message};
+          SpeechCredential.ttsTestResult(sid, false);
+        }
+      }
+    }
     res.status(200).json(results);
   } catch (err) {
     sysError(logger, res, err);