From a595faa378d2d485686417b31e7f72d6d7294cb3 Mon Sep 17 00:00:00 2001
From: Quan HL <quan.luuhoang8@gmail.com>
Date: Mon, 29 Jul 2024 19:45:13 +0700
Subject: [PATCH 1/3] deepgram tts support endpoint for on-premise

---
 lib/synth-audio.js | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/lib/synth-audio.js b/lib/synth-audio.js
index 516073c..32c4717 100644
--- a/lib/synth-audio.js
+++ b/lib/synth-audio.js
@@ -909,13 +909,14 @@ const synthWhisper = async(logger, {credentials, stats, voice, text, renderForCa
 };
 
 const synthDeepgram = async(logger, {credentials, stats, model, text, renderForCaching, disableTtsStreaming}) => {
-  const {api_key} = credentials;
+  const {api_key, deepgram_tts_uri} = credentials;
   if (!JAMBONES_DISABLE_TTS_STREAMING && !renderForCaching && !disableTtsStreaming) {
     let params = '';
     params += `{api_key=${api_key}`;
     params += ',vendor=deepgram';
     params += `,voice=${model}`;
     params += ',write_cache_file=1';
+    if (deepgram_tts_uri) params += `,endpoint=${deepgram_tts_uri}`;
     params += '}';
 
     return {
@@ -925,12 +926,19 @@ const synthDeepgram = async(logger, {credentials, stats, model, text, renderForC
     };
   }
   try {
-    const post = bent('https://api.deepgram.com', 'POST', 'buffer', {
+    let host = 'https://api.deepgram.com';
+    let path = '/v1/speak';
+    if (deepgram_tts_uri) {
+      const arr = /^(https?:\/\/[^\/]+)(\/.*)?$/.exec(deepgram_tts_uri);
+      host = arr[1];
+      path = arr[2];
+    }
+    const post = bent(host, 'POST', 'buffer', {
       'Authorization': `Token ${api_key}`,
       'Accept': 'audio/mpeg',
       'Content-Type': 'application/json'
     });
-    const mp3 = await post(`/v1/speak?model=${model}`, {
+    const mp3 = await post(`${path}?model=${model}`, {
       text
     });
     return mp3;

From e0e4d47340d981ac8c7102ef3bc1fae81dbf5ec3 Mon Sep 17 00:00:00 2001
From: Quan HL <quan.luuhoang8@gmail.com>
Date: Mon, 29 Jul 2024 20:53:55 +0700
Subject: [PATCH 2/3] wip

---
 lib/synth-audio.js | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/lib/synth-audio.js b/lib/synth-audio.js
index 32c4717..eff00d9 100644
--- a/lib/synth-audio.js
+++ b/lib/synth-audio.js
@@ -151,6 +151,11 @@ async function synthAudio(client, createHash, retrieveHash, logger, stats, { acc
     assert.ok(voice, 'synthAudio requires voice when verbio is used');
     assert.ok(credentials.client_id, 'synthAudio requires client_id when verbio is used');
     assert.ok(credentials.client_secret, 'synthAudio requires client_secret when verbio is used');
+  } else if ('deepgram' === vendor) {
+    if (!credentials.deepgram_tts_uri) {
+      assert.ok(credentials.api_key, 'synthAudio requires api_key when deepgram is used');
+    }
+    
   }
   const key = makeSynthKey({
     account_sid,
@@ -926,19 +931,13 @@ const synthDeepgram = async(logger, {credentials, stats, model, text, renderForC
     };
   }
   try {
-    let host = 'https://api.deepgram.com';
-    let path = '/v1/speak';
-    if (deepgram_tts_uri) {
-      const arr = /^(https?:\/\/[^\/]+)(\/.*)?$/.exec(deepgram_tts_uri);
-      host = arr[1];
-      path = arr[2];
-    }
-    const post = bent(host, 'POST', 'buffer', {
-      'Authorization': `Token ${api_key}`,
+    const post = bent(deepgram_tts_uri || 'https://api.deepgram.com', 'POST', 'buffer', {
+      // on-premise deepgram does not  require to have api_key
+      ...(api_key && {'Authorization': `Token ${api_key}`}),
       'Accept': 'audio/mpeg',
       'Content-Type': 'application/json'
     });
-    const mp3 = await post(`${path}?model=${model}`, {
+    const mp3 = await post(`/v1/speak?model=${model}`, {
       text
     });
     return mp3;

From 461178e726e478170f00dfa419fa5e195ed7e0b0 Mon Sep 17 00:00:00 2001
From: Quan HL <quan.luuhoang8@gmail.com>
Date: Mon, 29 Jul 2024 20:56:55 +0700
Subject: [PATCH 3/3] wip

---
 lib/synth-audio.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/synth-audio.js b/lib/synth-audio.js
index eff00d9..f55c91d 100644
--- a/lib/synth-audio.js
+++ b/lib/synth-audio.js
@@ -155,7 +155,7 @@ async function synthAudio(client, createHash, retrieveHash, logger, stats, { acc
     if (!credentials.deepgram_tts_uri) {
       assert.ok(credentials.api_key, 'synthAudio requires api_key when deepgram is used');
     }
-    
+
   }
   const key = makeSynthKey({
     account_sid,