# Multi-stage Dockerfile for Next.js Application

# Build stage
FROM node:24-alpine AS builder

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production

# Copy source code
COPY . .

# Build the Next.js application
RUN npm run build -- --no-turbopack

# Production stage
FROM node:24-alpine AS production

# Set working directory
WORKDIR /app

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

# Copy dependencies from builder stage
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/package.json ./package.json

# Copy source code
COPY --from=builder /app/.env ./.env
COPY --from=builder /app/public ./public

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

# Expose port
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
  CMD curl -f http://localhost:3000/health || exit 1

# Start command
CMD ["npm", "start"]