# ── Stage 1: Build ───────────────────────────────────────
FROM node:22-alpine AS builder

WORKDIR /app

# Install dependencies first (layer cache)
COPY package.json package-lock.json ./
RUN npm ci

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

# ── Stage 2: Serve ───────────────────────────────────────
FROM nginx:alpine AS runner

# Copy built assets from builder
COPY --from=builder /app/dist /usr/share/nginx/html

# Copy custom nginx config for SPA routing
COPY nginx.conf /etc/nginx/conf.d/default.conf

EXPOSE 80

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