mirror of
https://github.com/pezkuwichain/pwap.git
synced 2026-04-28 22:27:55 +00:00
feat(p2p): implement OKX-style internal ledger escrow system
Phase 5 implementation - Internal Ledger Escrow (OKX Model): - No blockchain transactions during P2P trades - Blockchain tx only at deposit/withdraw - Fast and fee-free P2P trading Database: - Add user_internal_balances table - Add p2p_deposit_withdraw_requests table - Add p2p_balance_transactions table - Add lock_escrow_internal(), release_escrow_internal() functions - Add process_deposit(), request_withdraw() functions UI Components: - Add InternalBalanceCard showing available/locked balances - Add DepositModal for crypto deposits to P2P balance - Add WithdrawModal for withdrawals from P2P balance - Integrate balance card into P2PDashboard Backend: - Add process-withdrawal Edge Function - Add verify-deposit Edge Function Updated p2p-fiat.ts: - createFiatOffer() uses internal balance lock - confirmPaymentReceived() uses internal balance transfer - Add internal balance management functions
This commit is contained in:
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import { useState, useEffect } from 'react';
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import {
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Dialog,
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DialogContent,
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DialogHeader,
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DialogTitle,
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DialogDescription,
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DialogFooter,
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} from '@/components/ui/dialog';
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import { Button } from '@/components/ui/button';
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import { Input } from '@/components/ui/input';
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import { Label } from '@/components/ui/label';
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import { Alert, AlertDescription } from '@/components/ui/alert';
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import {
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Select,
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SelectContent,
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SelectItem,
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SelectTrigger,
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SelectValue,
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} from '@/components/ui/select';
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import { Skeleton } from '@/components/ui/skeleton';
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import { Badge } from '@/components/ui/badge';
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import {
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Loader2,
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CheckCircle2,
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AlertTriangle,
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ArrowUpFromLine,
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Clock,
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Info
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} from 'lucide-react';
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import { usePolkadot } from '@/contexts/PolkadotContext';
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import { toast } from 'sonner';
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import {
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getInternalBalances,
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requestWithdraw,
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getDepositWithdrawHistory,
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type CryptoToken,
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type InternalBalance,
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type DepositWithdrawRequest
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} from '@shared/lib/p2p-fiat';
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interface WithdrawModalProps {
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isOpen: boolean;
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onClose: () => void;
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onSuccess?: () => void;
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}
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type WithdrawStep = 'form' | 'confirm' | 'success';
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export function WithdrawModal({ isOpen, onClose, onSuccess }: WithdrawModalProps) {
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const { selectedAccount } = usePolkadot();
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const [step, setStep] = useState<WithdrawStep>('form');
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const [token, setToken] = useState<CryptoToken>('HEZ');
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const [amount, setAmount] = useState('');
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const [walletAddress, setWalletAddress] = useState('');
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const [balances, setBalances] = useState<InternalBalance[]>([]);
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const [pendingRequests, setPendingRequests] = useState<DepositWithdrawRequest[]>([]);
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const [loading, setLoading] = useState(true);
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const [submitting, setSubmitting] = useState(false);
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const [requestId, setRequestId] = useState<string>('');
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// Network fee estimate (in HEZ)
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const NETWORK_FEE = 0.01;
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const MIN_WITHDRAWAL = 0.1;
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// Fetch balances and pending requests on mount
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useEffect(() => {
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if (isOpen) {
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fetchData();
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// Pre-fill wallet address from connected account
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if (selectedAccount?.address) {
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setWalletAddress(selectedAccount.address);
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}
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}
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}, [isOpen, selectedAccount]);
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const fetchData = async () => {
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setLoading(true);
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try {
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const [balanceData, historyData] = await Promise.all([
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getInternalBalances(),
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getDepositWithdrawHistory()
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]);
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setBalances(balanceData);
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// Filter for pending withdrawal requests
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setPendingRequests(
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historyData.filter(r => r.request_type === 'withdraw' && r.status === 'pending')
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);
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} catch (error) {
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console.error('Fetch data error:', error);
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} finally {
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setLoading(false);
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}
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};
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const resetModal = () => {
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setStep('form');
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setAmount('');
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setSubmitting(false);
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setRequestId('');
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};
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const handleClose = () => {
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resetModal();
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onClose();
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};
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const getAvailableBalance = (): number => {
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const balance = balances.find(b => b.token === token);
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return balance?.available_balance || 0;
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};
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const getLockedBalance = (): number => {
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const balance = balances.find(b => b.token === token);
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return balance?.locked_balance || 0;
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};
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const getMaxWithdrawable = (): number => {
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const available = getAvailableBalance();
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// Subtract network fee for HEZ
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if (token === 'HEZ') {
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return Math.max(0, available - NETWORK_FEE);
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}
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return available;
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};
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const handleSetMax = () => {
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const max = getMaxWithdrawable();
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setAmount(max.toFixed(4));
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};
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const validateWithdrawal = (): string | null => {
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const withdrawAmount = parseFloat(amount);
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if (isNaN(withdrawAmount) || withdrawAmount <= 0) {
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return 'Please enter a valid amount';
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}
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if (withdrawAmount < MIN_WITHDRAWAL) {
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return `Minimum withdrawal is ${MIN_WITHDRAWAL} ${token}`;
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}
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if (withdrawAmount > getMaxWithdrawable()) {
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return 'Insufficient available balance';
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}
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if (!walletAddress || walletAddress.length < 40) {
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return 'Please enter a valid wallet address';
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}
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// Check for pending requests
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const hasPendingForToken = pendingRequests.some(r => r.token === token);
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if (hasPendingForToken) {
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return `You already have a pending ${token} withdrawal request`;
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}
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return null;
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};
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const handleContinue = () => {
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const error = validateWithdrawal();
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if (error) {
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toast.error(error);
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return;
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}
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setStep('confirm');
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};
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const handleSubmitWithdrawal = async () => {
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const error = validateWithdrawal();
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if (error) {
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toast.error(error);
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return;
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}
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setSubmitting(true);
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try {
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const withdrawAmount = parseFloat(amount);
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const id = await requestWithdraw(token, withdrawAmount, walletAddress);
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setRequestId(id);
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setStep('success');
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onSuccess?.();
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} catch (error) {
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console.error('Submit withdrawal error:', error);
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} finally {
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setSubmitting(false);
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}
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};
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const renderFormStep = () => (
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<div className="space-y-6">
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{loading ? (
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<div className="space-y-4">
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<Skeleton className="h-10 w-full" />
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<Skeleton className="h-10 w-full" />
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<Skeleton className="h-10 w-full" />
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</div>
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) : (
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<>
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{/* Token Selection */}
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<div className="space-y-2">
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<Label>Select Token</Label>
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<Select value={token} onValueChange={(v) => setToken(v as CryptoToken)}>
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<SelectTrigger>
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<SelectValue />
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</SelectTrigger>
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<SelectContent>
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<SelectItem value="HEZ">HEZ (Native)</SelectItem>
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<SelectItem value="PEZ">PEZ</SelectItem>
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</SelectContent>
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</Select>
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</div>
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{/* Balance Display */}
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<div className="p-4 rounded-lg bg-muted/50 border">
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<div className="grid grid-cols-2 gap-4 text-sm">
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<div>
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<p className="text-muted-foreground">Available</p>
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<p className="font-semibold text-green-500">
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{getAvailableBalance().toFixed(4)} {token}
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</p>
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</div>
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<div>
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<p className="text-muted-foreground">Locked (Escrow)</p>
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<p className="font-semibold text-yellow-500">
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{getLockedBalance().toFixed(4)} {token}
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</p>
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</div>
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</div>
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</div>
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{/* Amount Input */}
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<div className="space-y-2">
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<Label>Withdrawal Amount</Label>
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<div className="relative">
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<Input
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type="number"
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placeholder="0.00"
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value={amount}
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onChange={(e) => setAmount(e.target.value)}
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min="0"
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step="0.0001"
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/>
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<div className="absolute right-14 top-1/2 -translate-y-1/2 text-sm text-muted-foreground">
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{token}
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</div>
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<Button
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type="button"
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variant="ghost"
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size="sm"
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className="absolute right-2 top-1/2 -translate-y-1/2 h-7 text-xs"
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onClick={handleSetMax}
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>
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MAX
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</Button>
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</div>
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<p className="text-xs text-muted-foreground">
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Min: {MIN_WITHDRAWAL} {token} | Max: {getMaxWithdrawable().toFixed(4)} {token}
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</p>
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</div>
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{/* Wallet Address */}
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<div className="space-y-2">
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<Label>Destination Wallet Address</Label>
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<Input
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value={walletAddress}
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onChange={(e) => setWalletAddress(e.target.value)}
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placeholder="5..."
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className="font-mono text-xs"
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/>
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<p className="text-xs text-muted-foreground">
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Only PezkuwiChain addresses are supported
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</p>
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</div>
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{/* Network Fee Info */}
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{token === 'HEZ' && (
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<Alert>
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<Info className="h-4 w-4" />
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<AlertDescription>
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Network fee: ~{NETWORK_FEE} HEZ (deducted from withdrawal amount)
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</AlertDescription>
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</Alert>
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)}
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{/* Pending Requests Warning */}
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{pendingRequests.length > 0 && (
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<Alert variant="destructive">
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<AlertTriangle className="h-4 w-4" />
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<AlertDescription>
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You have {pendingRequests.length} pending withdrawal request(s).
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Please wait for them to complete.
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</AlertDescription>
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</Alert>
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)}
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<DialogFooter>
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<Button variant="outline" onClick={handleClose}>
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Cancel
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</Button>
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<Button
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onClick={handleContinue}
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disabled={!amount || parseFloat(amount) <= 0}
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>
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Continue
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</Button>
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</DialogFooter>
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</>
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)}
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</div>
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);
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const renderConfirmStep = () => {
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const withdrawAmount = parseFloat(amount);
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const receiveAmount = token === 'HEZ' ? withdrawAmount - NETWORK_FEE : withdrawAmount;
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return (
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<div className="space-y-6">
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<Alert>
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<AlertTriangle className="h-4 w-4" />
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<AlertDescription>
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Please review your withdrawal details carefully.
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This action cannot be undone.
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</AlertDescription>
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</Alert>
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<div className="p-4 rounded-lg bg-muted/50 border space-y-4">
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<div className="flex justify-between items-center">
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<span className="text-muted-foreground">Token</span>
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<span className="font-semibold">{token}</span>
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</div>
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<div className="flex justify-between items-center">
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<span className="text-muted-foreground">Withdrawal Amount</span>
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<span className="font-semibold">{withdrawAmount.toFixed(4)} {token}</span>
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</div>
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{token === 'HEZ' && (
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<div className="flex justify-between items-center">
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<span className="text-muted-foreground">Network Fee</span>
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<span className="text-yellow-500">-{NETWORK_FEE} HEZ</span>
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</div>
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)}
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<div className="border-t pt-4 flex justify-between items-center">
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<span className="text-muted-foreground">You Will Receive</span>
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<span className="font-bold text-lg text-green-500">
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{receiveAmount.toFixed(4)} {token}
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</span>
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</div>
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</div>
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<div className="p-4 rounded-lg bg-muted/30 border">
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<p className="text-xs text-muted-foreground mb-1">Destination Address</p>
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<p className="font-mono text-xs break-all">{walletAddress}</p>
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</div>
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<div className="flex items-center gap-2 text-sm text-muted-foreground">
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<Clock className="h-4 w-4" />
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<span>Processing time: Usually within 5-30 minutes</span>
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</div>
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<DialogFooter>
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<Button variant="outline" onClick={() => setStep('form')}>
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Back
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</Button>
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<Button
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onClick={handleSubmitWithdrawal}
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disabled={submitting}
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>
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{submitting ? (
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<>
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<Loader2 className="h-4 w-4 mr-2 animate-spin" />
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Processing...
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</>
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) : (
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<>
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<ArrowUpFromLine className="h-4 w-4 mr-2" />
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Confirm Withdrawal
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</>
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)}
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</Button>
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</DialogFooter>
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</div>
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);
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};
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const renderSuccessStep = () => (
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<div className="space-y-6 text-center">
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<div className="w-20 h-20 mx-auto rounded-full bg-green-500/10 flex items-center justify-center">
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<CheckCircle2 className="h-10 w-10 text-green-500" />
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</div>
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<div>
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<h3 className="text-xl font-semibold text-green-500">
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Withdrawal Request Submitted!
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</h3>
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<p className="text-muted-foreground mt-2">
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Your withdrawal request has been submitted for processing.
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</p>
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</div>
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<div className="p-4 rounded-lg bg-muted/50 border space-y-3">
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<div className="flex items-center justify-between">
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<span className="text-muted-foreground">Request ID</span>
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<Badge variant="outline" className="font-mono text-xs">
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{requestId.slice(0, 8)}...
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</Badge>
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</div>
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<div className="flex items-center justify-between">
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<span className="text-muted-foreground">Status</span>
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<Badge className="bg-yellow-500/20 text-yellow-500 border-yellow-500/30">
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<Clock className="h-3 w-3 mr-1" />
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Processing
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</Badge>
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</div>
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<div className="flex items-center justify-between">
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<span className="text-muted-foreground">Amount</span>
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<span className="font-semibold">{amount} {token}</span>
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</div>
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</div>
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<Alert>
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<Info className="h-4 w-4" />
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<AlertDescription>
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You can track your withdrawal status in the transaction history.
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Funds will arrive in your wallet within 5-30 minutes.
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</AlertDescription>
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</Alert>
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<Button onClick={handleClose} className="w-full">
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Done
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</Button>
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</div>
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);
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return (
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<Dialog open={isOpen} onOpenChange={(open) => !open && handleClose()}>
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<DialogContent className="sm:max-w-md">
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<DialogHeader>
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<DialogTitle className="flex items-center gap-2">
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<ArrowUpFromLine className="h-5 w-5" />
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Withdraw from P2P Balance
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</DialogTitle>
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{step !== 'success' && (
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<DialogDescription>
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{step === 'form' && 'Withdraw crypto from your P2P balance to external wallet'}
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{step === 'confirm' && 'Review and confirm your withdrawal'}
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</DialogDescription>
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)}
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</DialogHeader>
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{step === 'form' && renderFormStep()}
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{step === 'confirm' && renderConfirmStep()}
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{step === 'success' && renderSuccessStep()}
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</DialogContent>
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</Dialog>
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);
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}
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