# Multi-stage build for multi-architecture support (AMD64, ARM64)
FROM --platform=$BUILDPLATFORM node:20-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production=false

# Copy source code
COPY . .

# Build production bundle
RUN npm run build

# --- Production stage with nginx ---
FROM --platform=$TARGETPLATFORM nginx:1.26-alpine

# Install curl for health checks
RUN apk add --no-cache curl

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

# Copy nginx config
COPY nginx.conf /etc/nginx/conf.d/default.conf

# Expose port
EXPOSE 80

# Health check
HEALTHCHECK --interval=30s --timeout=3s \
  CMD curl -f http://localhost:80/health || exit 1

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