# ========================================
# Frontend Angular Dockerfile (multi-stage)
# ========================================

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

# ========================================
# Development: ng serve con hot reload
# ========================================
FROM base AS development
RUN npm install
COPY . .
EXPOSE 4200
CMD ["npm", "run", "dev", "--", "--host", "0.0.0.0"]

# ========================================
# Build: bundle statico di produzione
# ========================================
FROM base AS build
RUN npm install
COPY . .
RUN npm run build
# Nota: la build SSR (server.ts/main.server.ts) non è al momento agganciata
# ad angular.json ("server" builder option assente), quindi ng build produce
# solo il bundle browser in dist/app/browser/. Se in futuro si abilita la SSR,
# questo stage andrà aggiornato per servire dist/app/server con Node invece di nginx.

# ========================================
# Production: bundle statico servito da nginx
# ========================================
FROM nginx:1.27-alpine AS production
COPY --from=build /app/dist/app/browser /usr/share/nginx/html
COPY nginx.conf /etc/nginx/conf.d/default.conf
EXPOSE 80