# React Frontend Dockerfile (Production Build)
FROM node:18-slim as build

WORKDIR /app

# Copy dependencies
COPY frontend/package*.json ./
RUN npm install

# Copy source and build
COPY frontend/ .
RUN npm run build

# Serve with Nginx
FROM nginx:alpine
COPY --from=build /app/build /usr/share/nginx/html

# Custom nginx config to proxy /api requests to the node_backend
RUN echo 'server { \
    listen 80; \
    location / { \
        root /usr/share/nginx/html; \
        index index.html; \
        try_files $uri /index.html; \
    } \
    location /api/ { \
        proxy_pass http://node_backend:5003/; \
        proxy_set_header Host $host; \
        proxy_set_header X-Real-IP $remote_addr; \
    } \
}' > /etc/nginx/conf.d/default.conf

EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]