FROM node:20-alpine AS base
WORKDIR /app
COPY package.json .

# ── dev target ─────────────────────────────────────────────────
FROM base AS dev
RUN npm install
COPY . .
EXPOSE 5174
CMD ["npm", "run", "dev"]

# ── build ──────────────────────────────────────────────────────
FROM base AS builder
RUN npm install
COPY . .
RUN npm run build

# ── prod (Nginx) ───────────────────────────────────────────────
FROM nginx:1.27-alpine AS prod
COPY --from=builder /app/dist /usr/share/nginx/html
COPY nginx.conf /etc/nginx/conf.d/default.conf
EXPOSE 80
