# Multi-stage build for Astro static site

# Stage 1: Build
FROM node:20-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production

# Copy source
COPY . .

# Build static site
RUN npm run build

# Stage 2: Production - nginx
FROM nginx:alpine

# Copy built site to nginx html directory
COPY --from=builder /app/dist /usr/share/nginx/html

# Copy nginx config (if needed for SPA routing)
COPY nginx.conf /etc/nginx/nginx.conf

# Expose port
EXPOSE 80

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

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