FROM node:18-alpine

WORKDIR /app

# Copy package files first for better layer caching
COPY package*.json ./

# Install dependencies (including dotenv)
RUN npm install

# Copy application source code
COPY . .

# Expose port if needed (optional, Matrix uses websocket)
# EXPOSE 3000

# Run the bot (dotenv will auto-load from /app/.env or environment variables)
CMD ["node", "index.js"]