Dockerfile.render

# Use Node.js 18 for better compatibility with Render
FROM node:18-alpine

# Install curl for health checks
RUN apk add --no-cache curl

# Set working directory
WORKDIR /app

# Copy package files
COPY package.json ./
COPY package-lock.json ./

# Clear npm cache and install with fallback
RUN npm cache clean --force && \
    (npm ci --only=production || npm install --only=production)

# Copy source code
COPY . .

# Install dev dependencies and build
RUN npm install && npm run build

# Remove dev dependencies
RUN npm prune --production

# Expose port
EXPOSE 3002

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD curl -f http://localhost:3002/telegram/health || exit 1

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

# Change ownership
RUN chown -R aical:nodejs /app
USER aical

# Start the application
CMD ["npm", "run", "start:prod"]