# Multi-stage Dockerfile for Next.js application

# Build stage
FROM node:18-alpine AS builder

# Set working directory
WORKDIR /app

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

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

# Copy all files
COPY . .

# Build the application
RUN npm run build

# Production stage
FROM node:18-alpine AS runner

# Create a non-root user
RUN addgroup -g 1001 -S nodejs
RUN adduser -S nextjs -u 1001 -G nodejs

# Set working directory
WORKDIR /app

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

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

# Copy built files from builder stage
COPY --from=builder --chown=nextjs:nodejs /app/.next ./.next
COPY --from=builder --chown=nextjs:nodejs /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/next.config.js ./next.config.js
COPY --from=builder --chown=nextjs:nodejs /app/prisma ./prisma

# Set environment variables
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Expose port
EXPOSE 3000

# Set user
USER nextjs

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