.env.example

# Crammr / Studytool environment variable template
# -----------------------------------------------------------------------------
# Copy this file to server/.env and fill in real values. NEVER commit server/.env.
# All variables below are read at startup by server/config/env.js (dotenv).
# In NODE_ENV=production, loadEnv() will refuse to start if any REQUIRED var
# is missing or if JWT_SECRET is left at its dev default.
# -----------------------------------------------------------------------------

# --- Runtime ---
NODE_ENV=development
PORT=3000

# --- Auth / JWT (REQUIRED in production) ---
# JWT_SECRET must be a long random string (>=32 bytes). Do NOT use the dev default.
JWT_SECRET=
JWT_EXPIRY=7d

# --- Google OAuth (REQUIRED in production for login + calendar) ---
GOOGLE_OAUTH_CLIENT_ID=
GOOGLE_OAUTH_CLIENT_SECRET=
# Legacy aliases (still read as fallback by env.js and calendarService.js)
GOOGLE_CLIENT_ID=
GOOGLE_CLIENT_SECRET=
GOOGLE_CALENDAR_REDIRECT_URI=http://localhost:3000/api/calendar/callback

# --- CORS (REQUIRED in production) ---
# Comma-separated list of allowed origins.
CORS_ORIGINS=http://localhost:3000
CLIENT_URL=http://localhost:3000

# --- MySQL (REQUIRED in production) ---
DB_HOST=localhost
DB_USER=root
DB_PASSWORD=
DB_NAME=studytool
DB_PORT=3306
# Production TLS (optional)
DB_SSL=true
DB_SSL_REJECT_UNAUTHORIZED=true
DB_SSL_CA=

# --- Gemini (Google Generative AI) ---
GEMINI_API_KEY=

# --- Stripe ---
STRIPE_SECRET_KEY=
STRIPE_WEBHOOK_SECRET=
STRIPE_PRICE_PRO_MONTHLY=
STRIPE_PRICE_PRO_ANNUAL=
STRIPE_PRICE_FAMILY_MONTHLY=
STRIPE_PRICE_FAMILY_ANNUAL=

# --- Google Cloud Storage ---
GCS_BUCKET=
GCS_PROJECT_ID=
GCS_KEY_FILE=
# Or use standard ADC: GOOGLE_APPLICATION_CREDENTIALS=/path/to/key.json

# --- ChromaDB (vector store for RAG) ---
CHROMADB_URL=http://localhost:8000

# --- Email (SendGrid) ---
EMAIL_API_KEY=
EMAIL_FROM=noreply@crammr.ai

# --- Web Push (VAPID) ---
VAPID_PUBLIC_KEY=
VAPID_PRIVATE_KEY=

# --- PostHog (product analytics only — NO behavioral/engagement data) ---
POSTHOG_API_KEY=
POSTHOG_HOST=https://app.posthog.com

# --- Redis / BullMQ ---
REDIS_URL=redis://localhost:6379