# Pantry Production Dockerfile
# Multi-stage build for optimized production image

# Stage 1: Build the Nuxt application
FROM node:20-alpine AS builder

# Set working directory
WORKDIR /app

# Copy package files
COPY app/package*.json ./

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

# Copy application source
COPY app/ ./

# Build the application
RUN npm run build

# Stage 2: Production runtime
FROM node:20-alpine AS runner

# Install dumb-init for proper signal handling
RUN apk add --no-cache dumb-init

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

# Set working directory
WORKDIR /app

# Copy built application from builder
COPY --from=builder --chown=nodejs:nodejs /app/.output /app/.output
COPY --from=builder --chown=nodejs:nodejs /app/package*.json ./

# Switch to non-root user
USER nodejs

# Expose port
EXPOSE 3000

# Set environment variables
ENV NODE_ENV=production \
    HOST=0.0.0.0 \
    PORT=3000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=40s --retries=3 \
    CMD node -e "require('http').get('http://localhost:3000/api/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

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

# Start the application
CMD ["node", ".output/server/index.mjs"]