# ── build stage: compile the Vite bundle inside Docker ──
FROM node:22-alpine AS build
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
# Vite inlines this at build time, so it is a build arg and not a runtime env
# var — changing it later means rebuilding the bundle, not restarting nginx.
#
# Relative on purpose. A bundle carrying no hostname serves from any domain and
# is same-origin with the API that nginx proxies at /api/, so the deployment
# never has a CORS origin to keep in sync.
ARG VITE_UDYAM_API_BASE_URL=/api/v1/udyam
ENV VITE_UDYAM_API_BASE_URL=$VITE_UDYAM_API_BASE_URL
RUN npm run build

# ── serve stage: nginx serving the static SPA on 5173 ──
FROM nginx:alpine
COPY nginx.conf /etc/nginx/conf.d/default.conf
COPY --from=build /app/dist /usr/share/nginx/html
EXPOSE 5173