# Telegram bot token from @BotFather
TELEGRAM_BOT_TOKEN=

# Anthropic API key (https://console.anthropic.com/)
ANTHROPIC_API_KEY=

# PostgreSQL connection string
# For docker-compose the host is "postgres"; for local dev use "localhost"
DATABASE_URL=postgresql://chatbot:chatbot@localhost:5432/chatbot?schema=public

# Default model id when a chat has no preference yet (see src/config/models.config.ts)
DEFAULT_MODEL=claude-sonnet-5

# How many recent messages to keep verbatim before rolling them into a summary
HISTORY_WINDOW=20

# Optional: override the default system prompt (bot personality) globally.
# Per-chat overrides via /persona take precedence over this.
# SYSTEM_PROMPT=

# Smart group mode: let the bot decide on its own whether to chime in.
# Requires privacy mode DISABLED in BotFather so the bot sees all group messages.
GROUP_GATE_ENABLED=true
# Debounce window (ms) to batch a burst of group messages before deciding.
GATE_DEBOUNCE_MS=5000
# Minimum gap (ms) between self-initiated group replies, to avoid spam.
GATE_COOLDOWN_MS=60000

# Web search: let the model look things up online when it needs fresh facts.
# Anthropic server-side tool, billed ~$10 per 1000 searches.
WEB_SEARCH_ENABLED=true
# Max searches the model may run per single reply.
WEB_SEARCH_MAX_USES=5

# Live streaming of replies via Telegram message drafts (private chats only).
STREAM_ENABLED=true

# Node env
NODE_ENV=development