FROM node:20-alpine

WORKDIR /app

# Copier package.json
COPY frontend/package*.json ./

# Installer dépendances
RUN npm install --legacy-peer-deps

# Copier code source
COPY frontend/ .

# Clean previous builds
RUN rm -rf build/

# Build argument for API URL
ARG REACT_APP_API_URL=http://backend:8000
ENV REACT_APP_API_URL=${REACT_APP_API_URL}

# Force rebuild timestamp (bust cache)
ARG CACHEBUST=1
ENV CACHEBUST=${CACHEBUST}

# Build avec npm run build (CRA standard)
RUN npm run build

# Installer serve pour servir la build
RUN npm install -g serve

EXPOSE 3000

# Servir la build
CMD ["serve", "-s", "build", "-l", "3000"]