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216
app/api/referral-points/redeem/route.ts
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216
app/api/referral-points/redeem/route.ts
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import { NextRequest, NextResponse } from 'next/server'
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import { cookies } from 'next/headers'
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import pool from '@/lib/db'
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import { ALLOWED_PAYMENT_CURRENCIES, isAllowedCurrency } from '@/lib/payment-currencies'
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// POST /api/referral-points/redeem - Redeem referral points to crypto
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export async function POST(request: NextRequest) {
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const connection = await pool.getConnection()
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try {
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const cookieStore = await cookies()
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const buyerIdCookie = cookieStore.get('buyer_id')?.value
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if (!buyerIdCookie) {
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return NextResponse.json(
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{ error: 'Authentication required' },
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{ status: 401 }
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)
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}
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const buyer_id = parseInt(buyerIdCookie, 10)
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const body = await request.json()
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const { points, crypto_currency, wallet_address } = body
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// Validate required fields
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if (!points || !crypto_currency || !wallet_address) {
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return NextResponse.json(
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{ error: 'Missing required fields: points, crypto_currency, wallet_address' },
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{ status: 400 }
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)
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}
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const pointsToRedeem = parseFloat(points)
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const normalizedCryptoCurrency = crypto_currency.toLowerCase().trim()
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const normalizedWalletAddress = wallet_address.trim()
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// Validate points amount
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if (isNaN(pointsToRedeem) || pointsToRedeem <= 0) {
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return NextResponse.json(
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{ error: 'Points must be a positive number' },
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{ status: 400 }
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)
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}
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// Validate crypto currency
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if (!isAllowedCurrency(normalizedCryptoCurrency)) {
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return NextResponse.json(
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{ error: `Unsupported cryptocurrency. Allowed: ${ALLOWED_PAYMENT_CURRENCIES.join(', ')}` },
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{ status: 400 }
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)
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}
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// Basic wallet address validation (non-empty, reasonable length)
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if (normalizedWalletAddress.length < 10 || normalizedWalletAddress.length > 255) {
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return NextResponse.json(
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{ error: 'Invalid wallet address format' },
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{ status: 400 }
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)
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}
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await connection.beginTransaction()
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try {
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// Get buyer's current points balance
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const [buyerRows] = await connection.execute(
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'SELECT referral_points FROM buyers WHERE id = ? FOR UPDATE',
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[buyer_id]
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)
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const buyers = buyerRows as any[]
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if (buyers.length === 0) {
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await connection.rollback()
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return NextResponse.json(
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{ error: 'Buyer not found' },
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{ status: 404 }
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)
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}
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const currentPoints = parseFloat(buyers[0].referral_points) || 0
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// Get redemption settings
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const [settingsRows] = await connection.execute(
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'SELECT setting_key, setting_value FROM referral_settings'
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)
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const settings = settingsRows as any[]
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const pointsToCryptoChf = parseFloat(
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settings.find(s => s.setting_key === 'points_to_crypto_chf')?.setting_value || '100'
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)
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const minRedemptionPoints = parseFloat(
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settings.find(s => s.setting_key === 'min_redemption_points')?.setting_value || '1000'
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)
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// Validate minimum redemption amount
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if (pointsToRedeem < minRedemptionPoints) {
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await connection.rollback()
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return NextResponse.json(
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{ error: `Minimum redemption is ${minRedemptionPoints} points` },
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{ status: 400 }
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)
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}
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// Validate user has enough points
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if (currentPoints < pointsToRedeem) {
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await connection.rollback()
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return NextResponse.json(
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{ error: 'Insufficient points' },
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{ status: 400 }
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)
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}
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// Calculate CHF value of points
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const chfValue = pointsToRedeem / pointsToCryptoChf
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// TODO: Get current crypto exchange rate
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// For now, we'll use a placeholder that would need to be replaced with actual exchange rate API
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// This should fetch the current rate from an exchange API (e.g., CoinGecko, Binance, etc.)
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const cryptoExchangeRate = await getCryptoExchangeRate(normalizedCryptoCurrency, 'chf')
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if (!cryptoExchangeRate) {
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await connection.rollback()
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return NextResponse.json(
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{ error: 'Failed to fetch exchange rate. Please try again later.' },
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{ status: 500 }
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)
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}
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// Calculate crypto amount
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const cryptoAmount = chfValue / cryptoExchangeRate
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// Deduct points from buyer's balance
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const newBalance = currentPoints - pointsToRedeem
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await connection.execute(
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'UPDATE buyers SET referral_points = ? WHERE id = ?',
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[newBalance, buyer_id]
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)
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// Create redemption record
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const [redemptionResult] = await connection.execute(
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`INSERT INTO point_redemptions
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(buyer_id, points, crypto_currency, wallet_address, crypto_amount, status)
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VALUES (?, ?, ?, ?, ?, 'pending')`,
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[buyer_id, pointsToRedeem, normalizedCryptoCurrency, normalizedWalletAddress, cryptoAmount]
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)
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const redemptionId = (redemptionResult as any).insertId
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// Record transaction
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await connection.execute(
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`INSERT INTO referral_point_transactions
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(buyer_id, points, type, description)
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VALUES (?, ?, 'redeemed', ?)`,
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[
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buyer_id,
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pointsToRedeem,
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`Points redeemed to ${normalizedCryptoCurrency.toUpperCase()} (Redemption #${redemptionId})`
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]
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)
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await connection.commit()
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return NextResponse.json({
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success: true,
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redemption_id: redemptionId,
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points_redeemed: pointsToRedeem,
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crypto_currency: normalizedCryptoCurrency,
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crypto_amount: cryptoAmount,
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chf_value: chfValue,
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new_balance: newBalance,
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message: 'Redemption request created successfully. Your crypto will be sent within 24-48 hours.'
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})
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} catch (error) {
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await connection.rollback()
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throw error
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}
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} catch (error: any) {
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console.error('Error redeeming points:', error)
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return NextResponse.json(
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{ error: error.message || 'Failed to redeem points' },
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{ status: 500 }
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)
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} finally {
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connection.release()
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}
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}
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// Helper function to get crypto exchange rate
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// TODO: Replace with actual exchange rate API integration
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async function getCryptoExchangeRate(crypto: string, fiat: string): Promise<number | null> {
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try {
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// Placeholder: In production, this should call a real exchange rate API
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// Examples: CoinGecko, Binance, Coinbase, etc.
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// For now, return a mock rate (this should be replaced)
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// In production, you would do something like:
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// const response = await fetch(`https://api.coingecko.com/api/v3/simple/price?ids=${crypto}&vs_currencies=${fiat}`)
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// const data = await response.json()
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// return data[crypto][fiat]
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// Mock rates (CHF per 1 unit of crypto) - REPLACE WITH REAL API
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const mockRates: Record<string, number> = {
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'btc': 85000,
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'eth': 2500,
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'sol': 100,
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'xrp': 0.6,
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'bnbbsc': 300,
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'usdterc20': 0.9, // Approximate CHF per USDT
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}
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return mockRates[crypto.toLowerCase()] || null
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} catch (error) {
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console.error('Error fetching exchange rate:', error)
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return null
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}
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}
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