# Stage 1: Build stage
FROM node:18-alpine AS builder

WORKDIR /app

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

# Install all dependencies (including dev dependencies)
RUN npm ci

# Copy source code
COPY . .

# Build the application
RUN npm run build

# Stage 2: Production stage
FROM node:18-alpine AS runner

WORKDIR /app

# Create non-root user for security
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copy necessary files from builder stage
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json

# Set proper permissions
RUN chown -R nextjs:nodejs /app

# Switch to non-root user
USER nextjs

# Expose port
EXPOSE 3000

# Set environment variable
ENV PORT 3000
ENV HOSTNAME "0.0.0.0"

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