# ==============================================================================
# CRouter Environment Configuration (Zero-Budget Local Defaults)
# ==============================================================================
# "One Gateway. Every Model."
# By default, CRouter operates strictly in Rp0 Local Mock Mode with zero external
# dependencies, zero token cost, and 100% deterministic latency and failure injection.
# ==============================================================================

# Server Configuration
GATEWAY_HOST=0.0.0.0
GATEWAY_PORT=8000
DEBUG=false
ENVIRONMENT=development

# Database Configuration
# PostgreSQL (Default for Docker Compose production/local stack):
DATABASE_URL=postgresql+asyncpg://crouter:crouter_secret@localhost:5432/crouter_db
# SQLite (Uncomment for zero-dependency local offline run without Docker):
# DATABASE_URL=sqlite+aiosqlite:///./crouter.db

# Cache & Distributed Limiter (Redis for distributed sliding-window limits)
REDIS_URL=redis://localhost:6379/0
# When true, automatically falls back to safe in-memory limiting if Redis is unavailable:
REDIS_FALLBACK_IN_MEMORY=true

# Built-in Mock Provider Configuration (Deterministic Rp0 Mock Subservice)
MOCK_PROVIDER_URL=http://localhost:8001
MOCK_PROVIDER_PORT=8001

# ==============================================================================
# OPTIONAL LIVE PROVIDERS (BYOK — Bring Your Own Key)
# ==============================================================================
# Leave blank to stay in Rp0 Local Mode (default).
# When keys are supplied, CRouter seamlessly dispatches traffic to real AI endpoints:
#
# 1. Google Gemini:
#    - Get your API key: https://aistudio.google.com/app/apikey (Free tier available)
#    - Models supported: gemini-1.5-flash, gemini-1.5-pro, gemini-2.0-flash-exp
#    - Configured in alias: "fast/chat" (Priority 1) or direct model: "gemini-1.5-flash"
GEMINI_API_KEY=
#
# 2. OpenRouter:
#    - Get your API key: https://openrouter.ai/keys
#    - Models supported: meta-llama/llama-3.2-3b-instruct:free, google/gemini-2.0-flash-exp:free, etc.
#    - Configured in alias: "fast/chat" (Priority 2 fallback) or "openrouter/<model_id>"
OPENROUTER_API_KEY=
#
# 3. 9Router / Command Code:
#    - Get your API key: https://commandcode.ai/settings
#    - Models supported: poolside/laguna-s-2.1-free, inclusionai/ling-3.0-flash-sante:free, etc.
#    - Configured in alias: "9router" or "9router/<model_id>"
COMMANDCODE_API_KEY=
COMMANDCODE_BASE_URL=https://api.commandcode.ai/provider/v1
#
# Live Smoke Testing:
# To verify live keys with zero code changes, run:
#   python scripts/smoke_test_live.py
# ==============================================================================

# Default Limits & Circuit Breaker Thresholds
DEFAULT_RATE_LIMIT_RPM=60
DEFAULT_MAX_CONCURRENCY=10
DEFAULT_REQUEST_TIMEOUT_MS=15000
BREAKER_FAILURE_THRESHOLD=5
BREAKER_COOLDOWN_SECONDS=30