# Use official Node.js runtime as base image
FROM node:18-alpine

# Set working directory in container
WORKDIR /app

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

# Install dependencies
RUN npm ci --only=production

# Copy source code
COPY src/ ./src/

# Create data directory for user storage
RUN mkdir -p ./src/data

# Create non-root user for security
RUN addgroup -g 1001 -S nodejs
RUN adduser -S botuser -u 1001

# Change ownership of app directory
RUN chown -R botuser:nodejs /app
USER botuser

# Expose port (if needed for health checks)
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD node -e "console.log('Bot is running')" || exit 1

# Start the bot
CMD ["node", "src/bot.js"]