# ── Stage 1: build the Vite client ────────────────────────────────────────
FROM node:22-alpine AS build

WORKDIR /app/client
COPY client/package.json client/package-lock.json* ./
RUN npm install
COPY client/ .

# Deliberately empty: relies on nginx same-origin-proxying /api to the
# api service (see nginx.conf) instead of an absolute cross-origin URL
# — the CORS bug that broke local dev earlier in this build. No
# SPOTIFY_CLIENT_ID build-arg needed — the client fetches it from
# /api/config at runtime instead (see client/src/lib/pkce.ts); it's not
# sensitive data, and this keeps it configured in exactly one place
# (the server's own .env), not a second copy baked in here.
ENV VITE_API_BASE=

RUN npx tsc && npx vite build

# ── Stage 2: serve ─────────────────────────────────────────────────────────
FROM nginx:alpine
COPY --from=build /app/client/dist /usr/share/nginx/html
COPY nginx.conf /etc/nginx/conf.d/default.conf
EXPOSE 80