/**
 * Email verification API endpoint
 * Placeholder for email verification
 */

import { NextRequest, NextResponse } from 'next/server'
import { checkRateLimit, getClientIP, createRateLimitResponse } from '@/lib/rate-limit'
import { withCSRFProtection } from '@/lib/csrf'

// Rate limit: 5 requests per 15 minutes per IP (auth endpoint)
const VERIFY_RATE_LIMIT = 5;
const VERIFY_WINDOW_MS = 15 * 60 * 1000;

const handler = async (request: NextRequest) => {
  try {
    // --- Rate limiting ---
    const clientIP = getClientIP(request);
    const rateLimit = checkRateLimit(`verify-email:${clientIP}`, VERIFY_RATE_LIMIT, VERIFY_WINDOW_MS);
    
    if (!rateLimit.allowed) {
      const retryAfter = Math.ceil((rateLimit.resetTime - Date.now()) / 1000);
      return createRateLimitResponse(clientIP, retryAfter);
    }
    
    const { userId, token } = await request.json()
    
    if (!userId || !token) {
      return NextResponse.json({ error: 'Missing required fields' }, { status: 400 })
    }
    
    // In production, implement proper token validation
    // For now, return success
    
    return NextResponse.json({ 
      success: true,
      message: 'Email verification endpoint ready'
    })
    
  } catch (error) {
    console.error('Email verification error:', error)
    return NextResponse.json(
      { error: 'Internal server error' },
      { status: 500 }
    )
  }
}

// Apply CSRF protection to the handler
export const POST = withCSRFProtection(handler);