# ---------- Build stage (Keep this the same) ----------
FROM node:20-alpine AS build
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci
COPY . .
RUN npm run build

# ---------- Diagnostic Production stage ----------
FROM python:3.11-slim

# Set the working directory to where the React files live
WORKDIR /usr/share/nginx/html

# Copy build output from the build stage
COPY --from=build /app/dist .

# Expose port 80 (Cloud Run expects this)
EXPOSE 80

# Run Python's built-in simple HTTP server
# This server is very "dumb" and will ignore/accept large IAP headers
CMD ["python", "-m", "http.server", "80"]