feat: sentence-by-sentence Hindi TTS, LibreTranslate auto-start with warmup

app.js

@@ -95,20 +95,41 @@ window.speakText = function(text) {
         .replace(/🎯|💻|🔍|⚠️|🚀|💡/g, "")
         .replace(/\[([^\]]+)\]\([^)]+\)/g, "$1")
         .trim();
-    // Translate if non-English selected
+    // Translate sentence by sentence to reduce lag
     if (window.ttsLang !== 'en-US' && window.ttsLang !== 'en-GB') {
         const langCode = window.ttsLang.split('-')[0];
-        fetch('http://192.168.217.160:5000/translate', {
-            method: 'POST',
-            headers: {'Content-Type': 'application/json'},
-            body: JSON.stringify({q: clean, source: 'en', target: langCode})
-        })
-            .then(r => r.json())
-            .then(data => {
-                const translated = data.translatedText || clean;
-                window._speakDirect(translated);
+        const sentences = clean.match(/[^.!?]+[.!?]+/g) || [clean];
+        let i = 0;
+        function translateAndSpeakNext() {
+            if (i >= sentences.length || !window.ttsEnabled) return;
+            const sentence = sentences[i].trim();
+            fetch('http://192.168.217.160:5000/translate', {
+                method: 'POST',
+                headers: {'Content-Type': 'application/json'},
+                body: JSON.stringify({q: sentence, source: 'en', target: langCode})
             })
-            .catch(() => window._speakDirect(clean));
+                .then(r => r.json())
+                .then(data => {
+                    const translated = data.translatedText || sentence;
+                    const utt = new SpeechSynthesisUtterance(translated);
+                    utt.lang = window.ttsLang;
+                    const voices = window.speechSynthesis.getVoices();
+                    const match = voices.find(v => v.lang === window.ttsLang);
+                    if (match) utt.voice = match;
+                    utt.rate = 0.95;
+                    utt.pitch = 1.0;
+                    utt.volume = 1.0;
+                    utt.onend = () => { i++; translateAndSpeakNext(); };
+                    window.speechSynthesis.speak(utt);
+                })
+                .catch(() => {
+                    const utt = new SpeechSynthesisUtterance(sentence);
+                    utt.lang = window.ttsLang;
+                    utt.onend = () => { i++; translateAndSpeakNext(); };
+                    window.speechSynthesis.speak(utt);
+                });
+        }
+        translateAndSpeakNext();
         return;
     }
     window._speakDirect(clean);

start.sh

@@ -14,6 +14,20 @@ if [ -f deepshell.pid ]; then
     fi
 fi
 
+# Start LibreTranslate if not already running
+if ! pgrep -f "libretranslate" > /dev/null; then
+    source ~/.venvs/libretranslate/bin/activate
+    nohup libretranslate --host 0.0.0.0 --port 5000 --load-only en,hi > libretranslate.log 2>&1 &
+    echo $! > libretranslate.pid
+    echo "LibreTranslate started (PID $(cat libretranslate.pid))"
+    deactivate
+    # Warmup — trigger model load in background
+    sleep 5 && curl -s -X POST http://localhost:5000/translate         -H "Content-Type: application/json"         -d '{"q":"warmup","source":"en","target":"hi"}' > /dev/null 2>&1 &
+    echo "LibreTranslate warmup triggered"
+else
+    echo "LibreTranslate already running"
+fi
+
 # Explicitly pass GROQ_API_KEY to subprocess
 GROQ_API_KEY=$GROQ_API_KEY nohup python run_deepshell.py > deepshell.log 2>&1 &
 echo $! > deepshell.pid

stop.sh

@@ -8,3 +8,14 @@ PID=$(cat deepshell.pid)
 fuser -k 8001/tcp 2>/dev/null
 rm -f deepshell.pid
 echo "DeepShell stopped (PID $PID)"
+
+# Stop LibreTranslate
+if [ -f libretranslate.pid ]; then
+    LT_PID=$(cat libretranslate.pid)
+    kill $LT_PID 2>/dev/null
+    rm -f libretranslate.pid
+    echo "LibreTranslate stopped (PID $LT_PID)"
+else
+    pkill -f libretranslate 2>/dev/null
+    echo "LibreTranslate stopped"
+fi