# Backend Dockerfile for Drone Detection System
FROM node:18-alpine AS base

# Install system dependencies
RUN apk add --no-cache \
    python3 \
    make \
    g++ \
    curl \
    dumb-init

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm install --only=production && \
    npm cache clean --force

# Copy application code
COPY . .

# Create logs directory
RUN mkdir -p logs

# Create uploads directory for logos
RUN mkdir -p uploads/logos

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

# Set ownership
RUN chown -R nodejs:nodejs /app

# Switch to non-root user
USER nodejs

# Expose port
EXPOSE 3001

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
    CMD curl -f http://localhost:3001/api/health || exit 1

# Use dumb-init to handle signals properly
ENTRYPOINT ["dumb-init", "--"]

# Start the application
CMD ["npm", "start"]