# Multi-stage build for production
FROM node:18-alpine AS builder

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./
COPY prisma ./prisma/

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

# Copy source code
COPY . .

# Generate Prisma Client
RUN npx prisma generate

# Build TypeScript
RUN npm run build

# Production stage
FROM node:18-alpine

# Install dumb-init for proper signal handling
RUN apk add --no-cache dumb-init

# Create app user
RUN addgroup -g 1001 -S nodejs && \
    adduser -S nodejs -u 1001

# Set working directory
WORKDIR /app

# Copy built application from builder
COPY --from=builder --chown=nodejs:nodejs /app/dist ./dist
COPY --from=builder --chown=nodejs:nodejs /app/node_modules ./node_modules
COPY --from=builder --chown=nodejs:nodejs /app/prisma ./prisma
COPY --from=builder --chown=nodejs:nodejs /app/package*.json ./

# Create uploads directory
RUN mkdir -p /app/uploads && chown -R nodejs:nodejs /app/uploads

# Switch to non-root user
USER nodejs

# Expose port
EXPOSE 3001

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=40s --retries=3 \
  CMD node -e "require('http').get('http://localhost:3001/api/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

# Start application with dumb-init
ENTRYPOINT ["dumb-init", "--"]
CMD ["node", "dist/server.js"]
