# Basis-Image
FROM node:20-alpine AS base
WORKDIR /usr/src/app

# Dependencies installieren (dev deps für Build erforderlich)
COPY package*.json ./
RUN npm install

# Quellcode kopieren
COPY . .

# Build ausführen (TypeScript -> dist)
RUN npm run build

# --------- Production Stage ---------
FROM node:20-alpine AS production
WORKDIR /usr/src/app

# Nur production dependencies installieren
COPY package*.json ./
RUN npm install --omit=dev

# Port freigeben
EXPOSE 3100

# App starten
CMD ["npm", "start"]