# ============================================
# Thinking in Systems - Environment Variables
# ============================================
# Copy this file to .env and fill in your values
# NEVER commit .env to version control

# ============================================
# Application
# ============================================
NODE_ENV=development
APP_NAME="Your App Name"
APP_URL=http://localhost:3000
PORT=3000

# ============================================
# Database - Supabase
# ============================================
# Get these from: https://app.supabase.com/project/_/settings/api
NEXT_PUBLIC_SUPABASE_URL=https://your-project.supabase.co
NEXT_PUBLIC_SUPABASE_ANON_KEY=eyJ...
SUPABASE_SERVICE_ROLE_KEY=eyJ...
SUPABASE_JWT_SECRET=your-jwt-secret

# ============================================
# Database - PostgreSQL (Direct Connection)
# ============================================
DATABASE_URL=postgresql://user:password@localhost:5432/dbname
# For pooled connections (Supabase)
DATABASE_POOLING_URL=postgresql://user:password@localhost:6543/dbname

# ============================================
# Authentication
# ============================================
# NextAuth.js
NEXTAUTH_URL=http://localhost:3000
NEXTAUTH_SECRET=generate-with-openssl-rand-base64-32

# OAuth Providers (optional)
GOOGLE_CLIENT_ID=
GOOGLE_CLIENT_SECRET=
GITHUB_CLIENT_ID=
GITHUB_CLIENT_SECRET=
APPLE_CLIENT_ID=
APPLE_CLIENT_SECRET=

# ============================================
# Email Service
# ============================================
# Resend
RESEND_API_KEY=re_...

# SendGrid
SENDGRID_API_KEY=SG...

# SMTP
SMTP_HOST=smtp.gmail.com
SMTP_PORT=587
SMTP_USER=your-email@gmail.com
SMTP_PASSWORD=your-app-password
SMTP_FROM=noreply@yourapp.com

# ============================================
# Payment Processing
# ============================================
# Stripe
STRIPE_PUBLISHABLE_KEY=pk_test_...
STRIPE_SECRET_KEY=sk_test_...
STRIPE_WEBHOOK_SECRET=whsec_...

# Paddle
PADDLE_VENDOR_ID=
PADDLE_API_KEY=
PADDLE_PUBLIC_KEY=

# ============================================
# Storage
# ============================================
# AWS S3
AWS_ACCESS_KEY_ID=
AWS_SECRET_ACCESS_KEY=
AWS_REGION=us-east-1
S3_BUCKET_NAME=

# Cloudinary
CLOUDINARY_CLOUD_NAME=
CLOUDINARY_API_KEY=
CLOUDINARY_API_SECRET=
NEXT_PUBLIC_CLOUDINARY_CLOUD_NAME=

# ============================================
# Analytics & Monitoring
# ============================================
# Vercel Analytics
NEXT_PUBLIC_ANALYTICS_ID=

# Google Analytics
NEXT_PUBLIC_GA_MEASUREMENT_ID=G-...

# PostHog
NEXT_PUBLIC_POSTHOG_KEY=phc_...
NEXT_PUBLIC_POSTHOG_HOST=https://app.posthog.com

# Sentry
SENTRY_DSN=https://...@sentry.io/...
NEXT_PUBLIC_SENTRY_DSN=

# ============================================
# AI & Machine Learning
# ============================================
# OpenAI
OPENAI_API_KEY=sk-...
OPENAI_ORG_ID=org-...

# Anthropic Claude
ANTHROPIC_API_KEY=sk-ant-...

# Replicate
REPLICATE_API_TOKEN=r8_...

# Hugging Face
HUGGINGFACE_API_KEY=hf_...

# ============================================
# Search & Discovery (MCP Servers)
# ============================================
# Tavily Search
TAVILY_API_KEY=tvly-...

# Brave Search
BRAVE_API_KEY=BSA...

# GitHub
GITHUB_TOKEN=ghp_...
GITHUB_PERSONAL_ACCESS_TOKEN=ghp_...

# ============================================
# External APIs
# ============================================
# Google Maps
NEXT_PUBLIC_GOOGLE_MAPS_API_KEY=

# Mapbox
NEXT_PUBLIC_MAPBOX_ACCESS_TOKEN=pk_...

# Weather API
WEATHER_API_KEY=

# Twilio (SMS/Voice)
TWILIO_ACCOUNT_SID=AC...
TWILIO_AUTH_TOKEN=
TWILIO_PHONE_NUMBER=+1...

# ============================================
# Feature Flags
# ============================================
NEXT_PUBLIC_ENABLE_PWA=false
NEXT_PUBLIC_ENABLE_ANALYTICS=true
NEXT_PUBLIC_ENABLE_SENTRY=false
FEATURE_FLAG_NEW_UI=false
MAINTENANCE_MODE=false

# ============================================
# Development Tools
# ============================================
# Prettier
PRETTIER_CONFIG_PATH=.prettierrc

# ESLint
ESLINT_CONFIG_PATH=.eslintrc.json

# Debug
DEBUG=false
VERBOSE_LOGGING=false

# ============================================
# Mobile App Specific (React Native/Expo)
# ============================================
# Expo
EXPO_PUBLIC_API_URL=http://localhost:3000
EXPO_PUBLIC_SUPABASE_URL=
EXPO_PUBLIC_SUPABASE_ANON_KEY=

# iOS
IOS_BUNDLE_IDENTIFIER=com.yourcompany.yourapp

# Android
ANDROID_PACKAGE_NAME=com.yourcompany.yourapp

# ============================================
# CI/CD
# ============================================
# Vercel
VERCEL_URL=
VERCEL_GIT_COMMIT_SHA=
VERCEL_ENV=development

# GitHub Actions
CI=true
GITHUB_TOKEN=

# ============================================
# Caching & Performance
# ============================================
# Redis
REDIS_URL=redis://localhost:6379
REDIS_PASSWORD=

# Upstash
UPSTASH_REDIS_REST_URL=
UPSTASH_REDIS_REST_TOKEN=

# ============================================
# Security
# ============================================
# Rate Limiting
RATE_LIMIT_MAX_REQUESTS=100
RATE_LIMIT_WINDOW_MS=900000

# CORS
CORS_ALLOWED_ORIGINS=http://localhost:3000,https://yourapp.com

# Content Security Policy
CSP_REPORT_URI=https://yourapp.report-uri.com

# ============================================
# Notes:
# ============================================
# 1. Generate secrets with: openssl rand -base64 32
# 2. Never commit .env files to git
# 3. Use different values for dev/staging/production
# 4. Keep this file updated as a reference
# 5. Document any new env vars you add here