# ── Stage 1: build ──────────────────────────────────────────
FROM node:20-alpine AS builder
WORKDIR /app

# Install dependencies
COPY package.json ./
RUN npm install

# Copy source and build
COPY . .
RUN npm run build

# ── Stage 2: serve ──────────────────────────────────────────
FROM nginx:alpine
COPY --from=builder /app/dist /usr/share/nginx/html
COPY nginx.conf /etc/nginx/conf.d/default.conf

# HuggingFace Spaces runs on port 7860
EXPOSE 7860

CMD ["nginx", "-g", "daemon off;"]