init

negot8/backend/voice/elevenlabs_tts.py

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+# backend/voice/elevenlabs_tts.py
+import httpx
+from config import ELEVENLABS_API_KEY, VOICE_ID_AGENT_A, VOICE_ID_AGENT_B
+
+async def generate_voice_summary(text: str, negotiation_id: str,
+                                  voice_id: str = None) -> str:
+    """Generate TTS MP3 and return file path. Returns None on failure."""
+    voice_id = voice_id or VOICE_ID_AGENT_A
+
+    try:
+        async with httpx.AsyncClient() as client:
+            response = await client.post(
+                f"https://api.elevenlabs.io/v1/text-to-speech/{voice_id}",
+                headers={"xi-api-key": ELEVENLABS_API_KEY, "Content-Type": "application/json"},
+                json={
+                    "text": text[:500],  # Budget cap
+                    "model_id": "eleven_flash_v2_5",
+                    "voice_settings": {"stability": 0.5, "similarity_boost": 0.75}
+                },
+                timeout=30.0
+            )
+            if response.status_code == 200:
+                import tempfile, os
+                voice_dir = os.path.join(tempfile.gettempdir(), "negot8_voice")
+                os.makedirs(voice_dir, exist_ok=True)
+                filepath = os.path.join(voice_dir, f"voice_{negotiation_id}.mp3")
+                with open(filepath, "wb") as f:
+                    f.write(response.content)
+                return filepath
+    except Exception as e:
+        print(f"Voice TTS failed: {e}")
+    return None
+
+# Voice summary templates
+VOICE_TEMPLATES = {
+    "expenses": "Expenses settled! After {rounds} rounds, {payer} owes {payee} {amount} rupees. A UPI payment link has been sent.",
+    "collaborative": "Decision made! You're going to {choice}. Your agents found the perfect match in {rounds} rounds.",
+    "scheduling": "Meeting scheduled for {date} at {time}, {location}. Agreed in {rounds} rounds.",
+    "marketplace": "Deal done! {item} for {price} rupees. Payment link is ready.",
+    "trip": "Trip planned! {destination} on {dates}, {budget} per person.",
+    "freelance": "Project agreed! {scope} for {budget} rupees. First milestone payment ready via UPI.",
+    "roommate": "Decision made! {option}. Cost split arranged.",
+    "conflict": "Resolution reached! {summary}.",
+}
+
+def build_voice_text(feature_type: str, resolution: dict) -> str:
+    template = VOICE_TEMPLATES.get(feature_type, "Negotiation resolved! Check Telegram for details.")
+    try:
+        return template.format(**resolution)[:500]
+    except KeyError:
+        summary = resolution.get("summary", "resolved")
+        return f"Your {feature_type} negotiation is complete: {summary}"[:500]