# Build stage
FROM node:20-alpine AS builder

# Set working directory
WORKDIR /app

# Install dependencies first (for better caching)
COPY package.json package-lock.json ./
RUN npm ci && npm cache clean --force

# Copy source code
COPY . .



# Build arguments for environment variables
ARG NEXT_PUBLIC_API_BASE_URL
ARG NEXT_PUBLIC_APP_ENV=production

# Set environment variables for build
ENV NEXT_PUBLIC_API_BASE_URL=$NEXT_PUBLIC_API_BASE_URL
ENV NEXT_PUBLIC_APP_ENV=$NEXT_PUBLIC_APP_ENV
ENV NODE_ENV=production

# Build the application
RUN npm run build

# Production stage
FROM gcr.io/distroless/nodejs20-debian12:latest AS runner

# Set working directory
WORKDIR /app

# Copy built application from builder stage
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static
COPY --from=builder /app/public ./public

# Set environment variables
ENV NODE_ENV=production
ENV PORT=3030
ENV HOSTNAME="0.0.0.0"

# Expose port
EXPOSE 3030

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD ["/nodejs/bin/node", "-e", "require('http').get('http://localhost:3030/api/health', (res) => { process.exit(res.statusCode === 200 ? 0 : 1) })"]

# Start the application
CMD ["server.js"]