# Stage 1: Build Next.js Application
FROM node:20-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci

# Copy the rest of the application files
COPY . .

# Set environment variables for production build
ARG NEXT_PUBLIC_API_URL=http://localhost:8002
ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
ENV NODE_ENV=production

# Build the Next.js production bundle
RUN npm run build

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

WORKDIR /app

# Set production environment variables
ENV NODE_ENV=production
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

# Copy build artifacts and configuration
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

EXPOSE 3000

# Start production server
CMD ["npm", "run", "start"]