.env.example

# SmartSupport AI - Configuration
# Copy this file to .env and fill in your values.

# ─ Server:
# The public URL where this server is hosted.
# This is used to serve the widget script to your website.
API_BASE_URL=http://localhost:8000

# Server port (default: 8000)
PORT=8000

# ─ API Key Auth
# Comma-separated list of valid API keys.
# Leave EMPTY to disable auth (good for local dev).
#
# Generate a key:
#   python -c "import secrets; print('ss-' + secrets.token_hex(16))"
#
# Example: API_KEYS=ss-abc123def456,ss-xyz789uvw012
API_KEYS=ss-abc123

# Max requests per minute per API key (default: 20)
RATE_LIMIT_PER_MINUTE=20

# ─ Widget Appearance:
# These values are injected into the widget script automatically.
# Change them to match your brand.

# Name shown in the chat header
BOT_NAME="Support AI"

# Brand colors (hex values)
PRIMARY_COLOR=#2563eb
SECONDARY_COLOR=#1d4ed8

#Chat UI Button Size (default: "56px")
BUTTON_SIZE="56px"

# First message the bot sends when the widget opens
WELCOME_MESSAGE="Hello! How can I help you today?"

# Message shown when the bot cannot find an answer
FALLBACK_MESSAGE="I do not have information on that. Please contact our support team directly."

# Widget button position: bottom-right or bottom-left
WIDGET_POSITION=bottom-right

# ─ RAG Settings:
# Embedding model (converts text to vectors)
EMBED_MODEL=all-MiniLM-L6-v2

# Language model (generates answers)
LLM_MODEL=HuggingFaceTB/SmolLM2-135M-Instruct

# Characters per document chunk (300-500 recommended)
CHUNK_SIZE=250

# Character overlap between consecutive chunks
CHUNK_OVERLAP=40

# Number of chunks retrieved per question (2-6 recommended)
TOP_K=2

# ─ Storage:
# Directory where the FAISS index is saved after running build_index.py
INDEX_DIR=./index