# ============================================
# EJEMPLO DE CONFIGURACIÓN - NO COMMITEAR VALORES REALES
# ============================================
# IMPORTANTE: Este archivo contiene solo placeholders.
# NUNCA commitear archivos .env con credenciales reales a git.
# ============================================
# DATABASE CONFIGURATION
# ============================================
DATABASE_URL="postgresql://mathuser:CHANGE_THIS_PASSWORD@localhost:5432/mathdb?schema=public"
DB_PASSWORD="CHANGE_THIS_PASSWORD"

# ============================================
# REDIS CONFIGURATION
# ============================================
REDIS_HOST="localhost"
REDIS_PORT=6379
REDIS_PASSWORD=""
REDIS_DB=0

# ============================================
# AI / LLM CONFIGURATION (MiniMax-M2.5 - Aliyun DashScope)
# ============================================
AI_API_BASE_URL="https://coding-intl.dashscope.aliyuncs.com/v1"
AI_API_KEY="your-dashscope-api-key-here"
AI_MODEL="MiniMax-M2.5"
AI_MAX_TOKENS=2000
AI_TEMPERATURE=0.7

# ============================================
# TELEGRAM CONFIGURATION (BACKEND ONLY)
# ============================================
TELEGRAM_BOT_TOKEN="your-telegram-bot-token-here"
TELEGRAM_ADMIN_CHAT_ID="your-admin-chat-id-here"
TELEGRAM_NOTIFICATIONS_ENABLED=true

# ============================================
# JWT CONFIGURATION
# ============================================
JWT_SECRET="CHANGE_THIS_SECRET_IN_PRODUCTION"
JWT_EXPIRES_IN="7d"
JWT_REFRESH_EXPIRES_IN="30d"

# ============================================
# APPLICATION CONFIGURATION
# ============================================
NODE_ENV="development"
PORT=3001
BACKEND_URL="http://localhost:3001"
FRONTEND_URL="http://localhost:3000"

# ============================================
# RATE LIMITING
# ============================================
RATE_LIMIT_WINDOW_MS=900000
RATE_LIMIT_MAX_REQUESTS=100
STRICT_RATE_LIMIT_MAX=5

# ============================================
# FILE UPLOAD CONFIGURATION
# ============================================
MAX_FILE_SIZE_MB=10
UPLOAD_DIR="./uploads"
PDF_PROCESSING_DIR="./uploads/pdfs"

# ============================================
# LOGGING CONFIGURATION
# ============================================
LOG_LEVEL="debug"
LOG_DIR="./logs"
ENABLE_QUERY_LOGGING=true

# ============================================
# CACHE CONFIGURATION
# ============================================
CACHE_TTL_SECONDS=3600
ENABLE_CACHE=true

# ============================================
# SESSION CONFIGURATION
# ============================================
SESSION_SECRET="CHANGE_THIS_SESSION_SECRET"
SESSION_MAX_AGE_MS=86400000

# ============================================
# CORS CONFIGURATION
# ============================================
CORS_ORIGIN="http://localhost:3000"
CORS_CREDENTIALS=true

# ============================================
# PDF PROCESSING CONFIGURATION
# ============================================
PDF_CONCURRENCY=3
PDF_TIMEOUT_MS=300000
PDF_QUALITY="medium"

# ============================================
# WORKER CONFIGURATION
# ============================================
WORKER_CONCURRENCY=3
WORKER_MAX_JOBS_PER_WORKER=10
WORKER_STUCK_TOKENS_THRESHOLD=10000
WORKER_STUCK_INTERVAL=5000

# ============================================
# NOTIFICATION CONFIGURATION
# ============================================
NOTIFICATION_RETRY_ATTEMPTS=3
NOTIFICATION_RETRY_DELAY_MS=1000
DAILY_SUMMARY_ENABLED=true
DAILY_SUMMARY_TIME="00:00"

# ============================================
# RANKING CONFIGURATION
# ============================================
RANKING_UPDATE_INTERVAL_MS=60000
RANKING_CACHE_TTL_SECONDS=300
LEADERBOARD_SIZE=100

# ============================================
# ACHIEVEMENT CONFIGURATION
# ============================================
ACHIEVEMENT_CHECK_INTERVAL_MS=30000
BADGE_AUTO_AWARD=true

# ============================================
# MONITORING & HEALTH CHECKS
# ============================================
HEALTH_CHECK_INTERVAL_MS=30000
ENABLE_METRICS=true
METRICS_PORT=9090

# ============================================
# FEATURE FLAGS
# ============================================
ENABLE_REGISTRATION=true
ENABLE_AI_GENERATION=true
ENABLE_PDF_PROCESSING=true
ENABLE_TELEGRAM_NOTIFICATIONS=true
ENABLE_RANKING_SYSTEM=true
ENABLE_ACHIEVEMENTS=true
MAINTENANCE_MODE=false