# =========================================================
# AI Chat - Environment Variables
# Copy this file to ".env" and fill in your own values.
# NEVER commit your real .env file to version control.
# =========================================================

# REQUIRED: Your OpenAI API key (get one at https://platform.openai.com/api-keys)
OPENAI_API_KEY=

# OPTIONAL: Model to use for the Responses API
OPENAI_MODEL=gpt-4o-mini

# OPTIONAL: Sampling temperature (0.0 = focused/deterministic, 2.0 = very creative)
OPENAI_TEMPERATURE=0.7

# OPTIONAL: Maximum tokens the model may generate per reply
OPENAI_MAX_OUTPUT_TOKENS=1024

# OPTIONAL: System prompt / instructions sent with every request
SYSTEM_PROMPT="You are a helpful, friendly, and knowledgeable AI assistant. Answer clearly and concisely, and use Markdown formatting (including fenced code blocks with language hints) when it improves readability."

# OPTIONAL: How many past messages to keep in memory per session
MAX_HISTORY_MESSAGES=20

# OPTIONAL: Flask settings
FLASK_SECRET_KEY=
FLASK_DEBUG=True
FLASK_HOST=127.0.0.1
FLASK_PORT=8000