# ─────────────────────────────────────────────
#  MCP Voice Agent — Environment Configuration
# ─────────────────────────────────────────────
# Copy this file to .env and fill in your values.
# NEVER commit .env to version control.

# ── LLM (Groq — free tier) ──────────────────
# Sign up at https://console.groq.com
GROQ_API_KEY=gsk_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

# ── Model selection ──────────────────────────
# Free Groq models: llama-3.3-70b-versatile | gemma2-9b-it | mixtral-8x7b-32768
LLM_MODEL=llama-3.3-70b-versatile
# Free Groq STT model
STT_MODEL=whisper-large-v3-turbo
# Edge-TTS voice (no API key needed)
# Full list: edge-tts --list-voices
TTS_VOICE=en-US-JennyNeural

# ── RAG / ChromaDB ──────────────────────────
CHROMA_PERSIST_DIR=./data/chroma_db
EMBEDDING_MODEL=all-MiniLM-L6-v2
DOCS_DIR=./data/sample_files
CHUNK_SIZE=500
CHUNK_OVERLAP=50

# ── MCP Server ──────────────────────────────
MCP_SERVER_HOST=0.0.0.0
MCP_SERVER_PORT=8000
# Set to "sse" for network transport, "stdio" for local subprocess
MCP_TRANSPORT=sse

# ── SQLite DB ────────────────────────────────
SQLITE_DB_PATH=./data/database.db

# ── Audio settings ──────────────────────────
AUDIO_SAMPLE_RATE=16000
AUDIO_CHANNELS=1
AUDIO_SILENCE_THRESHOLD=500
AUDIO_SILENCE_DURATION_SEC=1.5
AUDIO_MIN_SPEECH_DURATION_SEC=0.5

# ── Logging ──────────────────────────────────
LOG_LEVEL=INFO
# Options: json | console
LOG_FORMAT=console

# ── Environment ──────────────────────────────
# Options: development | production
APP_ENV=development