FROM node:18-slim

WORKDIR /app

# Copy package files
COPY backend/package*.json ./

# Install dependencies (sans --production pour installer toutes les dépendances)
RUN npm install

# Verify dependencies are installed
RUN npm list express > /dev/null 2>&1 || (echo "ERROR: express not installed" && exit 1)

# Copy application code
COPY backend/src ./src
COPY frontend ./frontend

EXPOSE 4001

CMD ["node", "src/server.js"]