# 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 built assets and runtime dependencies
COPY --from=builder /app/.next ./.next

# KORREKTUR: Kopiert den public-Ordner nur, wenn er wirklich existiert
COPY --from=builder /app/public* ./public

COPY --from=builder /app/package*.json ./
# KORREKTUR: Flexibles Kopieren der Next-Konfiguration (egal ob .js oder .mjs)
COPY --from=builder /app/next.config.* ./
# Optionale TS-Dateien (nur kopieren, wenn vorhanden, blockiert den Build nicht mehr)
COPY --from=builder /app/tsconfig.jso* ./
COPY --from=builder /app/next-env.d.t* ./
# 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"]