# Stage 1: Build
# Change from node:18-alpine to node:22-alpine
FROM node:22-alpine AS builder

WORKDIR /app

# Build arguments - MUST be before COPY to be available during build
ARG NEXT_PUBLIC_API_URL
ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}

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

# Install ALL dependencies (including dev dependencies for build)
RUN npm ci

# Copy source code
COPY . .

# Build the app
RUN npm run build

# Stage 2: Run
# Change from node:18-alpine to node:22-alpine
FROM node:22-alpine AS runner

WORKDIR /app

# Set to production
ENV NODE_ENV=production

# Runtime environment variable
ARG NEXT_PUBLIC_API_URL
ENV NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}

# Copy necessary files from the standalone build
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static

# Create cache directory with proper permissions
RUN mkdir -p .next/cache/images && \
    chmod -R 777 .next/cache

# Expose port
EXPOSE 3000

ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

# Set node options to fix the IPv6 issue we discussed earlier
ENV NODE_OPTIONS="--dns-result-order=ipv4first"

# Start the app
CMD ["node", "server.js"]