# Multi-stage build for production

# Stage 1: Build the React app
FROM node:18-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production && npm cache clean --force

# Copy source code
COPY . .

# Build the app
RUN npm run build

# Stage 2: Serve with Nginx
FROM nginx:alpine

# Copy built assets from builder stage
COPY --from=builder /app/dist /usr/share/nginx/html

# Copy custom nginx configuration
COPY nginx.conf /etc/nginx/conf.d/default.conf

# Expose port 80
EXPOSE 80

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=40s \
  CMD wget --quiet --tries=1 --spider http://localhost/ || exit 1

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