# Use a multi‑stage build for a Next.js app

# ---------- Builder stage ----------
FROM node:20-alpine AS builder

# Set working directory
WORKDIR /app

# Install dependencies (use package lock when present)
COPY shop/package*.json ./
RUN npm ci --omit=dev

# Copy the source code
COPY shop/ .

# Build the production output
RUN npm run build

# ---------- Runtime stage ----------
FROM node:20-alpine AS runner

WORKDIR /app

# Copy only the built assets and runtime dependencies from the builder
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/public ./public
COPY --from=builder /app/package*.json ./
COPY --from=builder /app/next.config.mjs ./
COPY --from=builder /app/next-env.d.ts ./
COPY --from=builder /app/tsconfig.json ./

# Install production dependencies (already installed in builder, but ensure they are present)
RUN npm ci --omit=dev

# Environment variables
ENV NODE_ENV=production
ENV PORT=3000

EXPOSE 3000

# Start the Next.js server
CMD ["npm", "run", "start"]
