# 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 --production

# Copy source code
COPY . .

# --- Production stage ---
FROM --platform=$TARGETPLATFORM node:20-alpine

# Install curl for health checks and other utilities
RUN apk add --no-cache curl wget

WORKDIR /app

# Copy dependencies from builder
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app .

# Create uploads directory
RUN mkdir -p uploads

# Expose port
EXPOSE 5000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=40s \
  CMD curl -f http://localhost:5000/api/health || exit 1

# Start server
CMD ["node", "server.js"]