# ============================================
# Docker Compose Environment Variables
# ============================================
# Used by docker-compose.yml for PostgreSQL service

POSTGRES_USER=postgres
POSTGRES_PASSWORD=postgres
POSTGRES_DB=books
POSTGRES_PORT=5432

# ============================================
# Backend Environment Variables
# ============================================
# Copy these to backend/.env

# Database connection string
DATABASE_URL="postgresql://postgres:postgres@localhost:5432/books"

# API server configuration
API_PORT=3000
NODE_ENV=development

# External services
OPEN_LIBRARY_API_URL=https://openlibrary.org

# CORS configuration
CORS_ORIGIN=http://localhost:5173

# Logging
LOG_LEVEL=info

# ============================================
# Frontend Environment Variables
# ============================================
# Copy these to frontend/.env.local

# Backend API URL
VITE_API_URL=http://localhost:3000/api

# ============================================
# Notes
# ============================================
# 1. Copy this file to .env in the root directory for Docker Compose
# 2. Copy backend variables to backend/.env
# 3. Copy frontend variables to frontend/.env.local
# 4. Update DATABASE_URL in backend/.env if using Docker:
#    DATABASE_URL="postgresql://postgres:postgres@postgres:5432/books"
#    (use 'postgres' as host instead of 'localhost')