# Multi-stage build for React frontend
FROM node:18-alpine AS build

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci

# Copy source code
COPY public/ ./public/
COPY src/ ./src/

# Build the application
RUN npm run build

# Production stage with Nginx
FROM nginx:alpine AS production

# Copy custom nginx config
COPY nginx.conf /etc/nginx/nginx.conf

# Copy built React app
COPY --from=build /app/build /usr/share/nginx/html

# Create a non-root user for nginx
RUN addgroup -g 1001 -S nginxgroup && \
    adduser -S nginxuser -u 1001 -G nginxgroup

# Change ownership of nginx directories
RUN chown -R nginxuser:nginxgroup /var/cache/nginx && \
    chown -R nginxuser:nginxgroup /var/log/nginx && \
    chown -R nginxuser:nginxgroup /etc/nginx/conf.d && \
    chown -R nginxuser:nginxgroup /usr/share/nginx/html

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:80/ || exit 1

# Expose port
EXPOSE 80

# Start nginx
CMD ["nginx", "-g", "daemon off;"]