# Build Stage
FROM node:20-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci

# Copy source code
COPY . .

# Build the project
RUN npm run build

# Production Stage
FROM node:20-alpine

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install production dependencies only
RUN npm ci --production

# Copy built assets from builder
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/public ./public

# Expose port
EXPOSE 4321

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD node -e "require('http').get('http://localhost:4321', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

# Start the server
CMD ["npm", "run", "preview", "--", "--host", "0.0.0.0", "--port", "4321"]