mirror of
https://github.com/pezkuwichain/pwap.git
synced 2026-04-24 08:27:57 +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 {
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Loader2,
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Copy,
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CheckCircle2,
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AlertTriangle,
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ExternalLink,
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QrCode,
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Wallet
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} from 'lucide-react';
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import { usePolkadot } from '@/contexts/PolkadotContext';
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import { useWallet } from '@/contexts/WalletContext';
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import { toast } from 'sonner';
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import {
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getPlatformWalletAddress,
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verifyDeposit,
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type CryptoToken
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} from '@shared/lib/p2p-fiat';
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interface DepositModalProps {
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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 DepositStep = 'select' | 'send' | 'verify' | 'success';
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export function DepositModal({ isOpen, onClose, onSuccess }: DepositModalProps) {
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const { api, selectedAccount } = usePolkadot();
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const { balances, signTransaction } = useWallet();
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const [step, setStep] = useState<DepositStep>('select');
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const [token, setToken] = useState<CryptoToken>('HEZ');
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const [amount, setAmount] = useState('');
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const [platformWallet, setPlatformWallet] = useState<string>('');
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const [txHash, setTxHash] = useState('');
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const [loading, setLoading] = useState(false);
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const [copied, setCopied] = useState(false);
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const [verifying, setVerifying] = useState(false);
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// Fetch platform wallet address on mount
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useEffect(() => {
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if (isOpen) {
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fetchPlatformWallet();
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}
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}, [isOpen]);
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const fetchPlatformWallet = async () => {
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const address = await getPlatformWalletAddress();
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setPlatformWallet(address);
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};
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const resetModal = () => {
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setStep('select');
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setToken('HEZ');
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setAmount('');
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setTxHash('');
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setLoading(false);
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setCopied(false);
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setVerifying(false);
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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 handleCopyAddress = async () => {
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try {
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await navigator.clipboard.writeText(platformWallet);
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setCopied(true);
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toast.success('Address copied to clipboard');
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setTimeout(() => setCopied(false), 2000);
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} catch {
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toast.error('Failed to copy address');
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}
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};
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const getAvailableBalance = () => {
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if (token === 'HEZ') return balances.HEZ;
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if (token === 'PEZ') return balances.PEZ;
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return '0';
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};
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const handleSendDeposit = async () => {
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if (!api || !selectedAccount) {
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toast.error('Please connect your wallet');
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return;
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}
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const depositAmount = parseFloat(amount);
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if (isNaN(depositAmount) || depositAmount <= 0) {
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toast.error('Please enter a valid amount');
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return;
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}
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setLoading(true);
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try {
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// Build the transfer transaction
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const DECIMALS = 12;
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const amountBN = BigInt(Math.floor(depositAmount * 10 ** DECIMALS));
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let tx;
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if (token === 'HEZ') {
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// Native transfer
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tx = api.tx.balances.transferKeepAlive(platformWallet, amountBN);
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} else {
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// Asset transfer (PEZ = asset ID 1)
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const assetId = token === 'PEZ' ? 1 : 0;
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tx = api.tx.assets.transfer(assetId, platformWallet, amountBN);
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}
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toast.info('Please sign the transaction in your wallet...');
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// Sign and send
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const hash = await signTransaction(tx);
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if (hash) {
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setTxHash(hash);
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setStep('verify');
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toast.success('Transaction sent! Please verify your deposit.');
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}
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} catch (error: unknown) {
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console.error('Deposit transaction error:', error);
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const message = error instanceof Error ? error.message : 'Transaction failed';
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toast.error(message);
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} finally {
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setLoading(false);
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}
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};
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const handleVerifyDeposit = async () => {
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if (!txHash) {
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toast.error('Please enter the transaction hash');
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return;
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}
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const depositAmount = parseFloat(amount);
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if (isNaN(depositAmount) || depositAmount <= 0) {
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toast.error('Invalid amount');
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return;
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}
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setVerifying(true);
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try {
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const success = await verifyDeposit(txHash, token, depositAmount);
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if (success) {
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setStep('success');
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onSuccess?.();
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}
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} catch (error) {
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console.error('Verify deposit error:', error);
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} finally {
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setVerifying(false);
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}
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};
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const renderStepContent = () => {
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switch (step) {
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case 'select':
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return (
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<div className="space-y-6">
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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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<div className="space-y-2">
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<Label>Amount to Deposit</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-3 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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</div>
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<p className="text-xs text-muted-foreground">
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Wallet Balance: {parseFloat(getAvailableBalance()).toFixed(4)} {token}
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</p>
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</div>
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<Alert>
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<Wallet className="h-4 w-4" />
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<AlertDescription>
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You will send {token} from your connected wallet to the P2P platform escrow.
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After confirmation, the amount will be credited to your P2P internal balance.
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</AlertDescription>
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</Alert>
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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={() => setStep('send')}
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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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</div>
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);
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case 'send':
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return (
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<div className="space-y-6">
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<div className="p-4 rounded-lg bg-muted/50 border space-y-4">
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<div className="text-center">
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<div className="w-16 h-16 mx-auto mb-3 rounded-xl bg-primary/10 flex items-center justify-center">
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<QrCode className="h-8 w-8 text-primary" />
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</div>
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<p className="text-sm font-medium">Send {amount} {token} to:</p>
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</div>
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{platformWallet ? (
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<div className="space-y-2">
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<div className="p-3 rounded-lg bg-background border font-mono text-xs break-all">
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{platformWallet}
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</div>
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<Button
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variant="outline"
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size="sm"
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className="w-full"
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onClick={handleCopyAddress}
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>
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{copied ? (
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<>
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<CheckCircle2 className="h-4 w-4 mr-2 text-green-500" />
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Copied!
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</>
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) : (
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<>
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<Copy className="h-4 w-4 mr-2" />
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Copy Address
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</>
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)}
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</Button>
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</div>
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) : (
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<Skeleton className="h-16 w-full" />
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)}
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</div>
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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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Only send {token} on the PezkuwiChain network. Sending other tokens or using
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other networks will result in permanent loss of funds.
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</AlertDescription>
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</Alert>
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<div className="flex gap-2">
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<Button
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variant="outline"
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className="flex-1"
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onClick={() => setStep('select')}
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>
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Back
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</Button>
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<Button
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className="flex-1"
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onClick={handleSendDeposit}
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disabled={loading || !platformWallet}
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>
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{loading ? (
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<>
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<Loader2 className="h-4 w-4 mr-2 animate-spin" />
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Sending...
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</>
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) : (
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<>
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Send {amount} {token}
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</>
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)}
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</Button>
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</div>
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</div>
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);
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case 'verify':
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return (
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<div className="space-y-6">
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<Alert>
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<CheckCircle2 className="h-4 w-4 text-green-500" />
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<AlertDescription>
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Transaction sent! Please verify your deposit to credit your P2P balance.
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</AlertDescription>
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</Alert>
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<div className="space-y-2">
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<Label>Transaction Hash</Label>
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<div className="flex gap-2">
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<Input
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value={txHash}
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onChange={(e) => setTxHash(e.target.value)}
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placeholder="0x..."
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className="font-mono text-xs"
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/>
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<Button
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variant="outline"
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size="icon"
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onClick={() => window.open(`https://explorer.pezkuwichain.io/tx/${txHash}`, '_blank')}
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disabled={!txHash}
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>
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<ExternalLink className="h-4 w-4" />
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</Button>
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</div>
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</div>
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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">Token</p>
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<p className="font-semibold">{token}</p>
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</div>
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<div>
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<p className="text-muted-foreground">Amount</p>
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<p className="font-semibold">{amount}</p>
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</div>
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</div>
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</div>
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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={handleVerifyDeposit}
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disabled={verifying || !txHash}
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>
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{verifying ? (
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<>
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<Loader2 className="h-4 w-4 mr-2 animate-spin" />
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Verifying...
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</>
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) : (
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'Verify Deposit'
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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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case 'success':
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return (
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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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Deposit Successful!
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</h3>
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<p className="text-muted-foreground mt-2">
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{amount} {token} has been added to your P2P internal balance.
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</p>
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</div>
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<div className="p-4 rounded-lg bg-muted/50 border">
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<p className="text-sm text-muted-foreground">
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You can now create sell offers or trade P2P using your internal balance.
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No blockchain fees during P2P trades!
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</p>
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</div>
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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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}
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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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<Wallet className="h-5 w-5" />
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Deposit to P2P Balance
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</DialogTitle>
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{step !== 'success' && (
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<DialogDescription>
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{step === 'select' && 'Deposit crypto from your wallet to P2P internal balance'}
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{step === 'send' && 'Send tokens to the platform escrow wallet'}
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{step === 'verify' && 'Verify your transaction to credit your balance'}
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</DialogDescription>
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)}
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</DialogHeader>
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{renderStepContent()}
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</DialogContent>
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</Dialog>
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);
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}
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