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Filename : deposit.php
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<?php
session_start();
include '../../config/oxconfig.php';
include 'includes/checklogin.php';
include 'includes/functions.php';
check_login();
$title = "Deposit";
$uid = $_SESSION['id'];
$user = getUserInfo($con, $uid);
extract($user);

define('MINIMUM_DEPOSIT', 1.00);

$errors = [];
$success = '';
$platform_ton_address = 'UQAgdL3b3sfQ3O0RlY4HM9Cb0OO8tFbrPCCfX8_mIH3ag8S8';

include 'includes/header.php';

function generateCsrfToken() {
    if (empty($_SESSION['csrf_token'])) {
        $_SESSION['csrf_token'] = bin2hex(random_bytes(32));
    }
    return $_SESSION['csrf_token'];
}
?>

<style>
    .deposit-card { box-shadow: 0 2px 10px rgba(0,0,0,0.1); padding: 20px; }
    .wallet-info { background: #e9f7ff; padding: 15px; border-radius: 8px; margin-bottom: 20px; }
    .deposit-address { font-family: monospace; background: #f5f5f5; padding: 10px; border-radius: 4px; word-break: break-all; }
    .amount-validation { font-size: 0.9em; color: #555; margin-top: 5px; }
    .process-flow { margin-bottom: 20px; }
    .instruction-step { background: #f8f9fa; border-left: 4px solid #007bff; padding: 15px; margin-bottom: 15px; border-radius: 4px; }
    .step-number { display: inline-block; width: 25px; height: 25px; background: #007bff; color: white; border-radius: 50%; text-align: center; line-height: 25px; font-weight: bold; margin-right: 10px; }
    #qr-code img { max-width: 200px; margin: 0 auto; display: block; }
    #deposit-popup .modal-dialog { max-width: 400px; }
    #deposit-popup .modal-body { text-align: center; }
    #deposit-popup .spinner-border { margin-bottom: 10px; }
</style>

<div class="pc-container">
    <div class="pc-content">
        <div class="page-header">
            <div class="page-block">
                <div class="row align-items-center">
                    <div class="col-md-12">
                        <ul class="breadcrumb mb-3">
                            <li class="breadcrumb-item"><a href="dashboard">Home</a></li>
                            <li class="breadcrumb-item" aria-current="page">Deposit</li>
                        </ul>
                    </div>
                    <div class="col-md-12">
                        <div class="page-header-title">
                            <h2 class="mb-0">Deposit Funds</h2>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class="row">
            <div class="col-md-8 col-12 mx-auto">
                <div class="card deposit-card">
                    <div class="">
                        <?php if ($success): ?>
                            <div class="alert alert-success">
                                <i class="fas fa-check-circle me-2"></i>
                                <?php echo htmlspecialchars($success); ?>
                            </div>
                        <?php endif; ?>
                        <?php if ($errors): ?>
                            <div class="alert alert-danger">
                                <i class="fas fa-exclamation-triangle me-2"></i>
                                <ul class="mb-0">
                                    <?php foreach ($errors as $error): ?>
                                        <li><?php echo htmlspecialchars($error); ?></li>
                                    <?php endforeach; ?>
                                </ul>
                            </div>
                        <?php endif; ?>

                        <div class="wallet-info">
                            <h6><i class="fas fa-link me-2 mt-2"></i>Connection</h6>
                            <div id="wallet-status" class="mt-2 mb-1" style="position:absolute;top:25px;right:30px;">
                                <div id="ton-connect"></div>
                            </div>
                            <div id="ton-connect-fallback" style="display: none;">
                                <p class="text-danger">Wallet connection failed to load. Please refresh the page or try another browser.</p>
                            </div>
                        </div>

                        <div class="process-flow">
                            <h6 class="mb-3">
                                <i class="fas fa-info-circle me-2"></i>
                                How the Deposit Process Works
                            </h6>
                            <div class="instruction-step">
                                <span class="step-number">1</span>
                                <strong>Connect Your TON Wallet:</strong> Click the button above to connect your TON wallet (Tonkeeper, MyTonWallet, etc.)
                            </div>
                            <div class="instruction-step">
                                <span class="step-number">2</span>
                                <strong>Enter Deposit Amount:</strong> Specify how much USDT you want to deposit (minimum $<?php echo number_format(MINIMUM_DEPOSIT, 2); ?>)
                            </div>
                            <div class="instruction-step">
                                <span class="step-number">3</span>
                                <strong>Initiate Transfer:</strong> The system will convert your USDT amount to TON and prompt your wallet to send the equivalent TON
                            </div>
                            <div class="instruction-step">
                                <span class="step-number">4</span>
                                <strong>Automatic Processing:</strong> Once the transaction is confirmed on the TON blockchain, your account balance will be updated
                            </div>
                        </div>

                        <div id="deposit-info" style="display: none;">
                            <div class="row mb-4">
                                <div class="col-md-6">
                                    <div class="card border-primary" style="text-align: center;">
                                        <div class="card-body">
                                            <i class="fas fa-coins fa-2x text-primary" style="margin-bottom: 10px;"></i>
                                            <h6>Minimum Deposit</h6>
                                            <h4 class="text-primary">$<?php echo number_format(MINIMUM_DEPOSIT, 2); ?></h4>
                                            <small style="color: #6c757d;">USDT (converted to TON)</small>
                                        </div>
                                    </div>
                                </div>
                                <div class="col-md-6">
                                    <div class="card border-success" style="text-align: center;">
                                        <div class="card-body">
                                            <i class="fas fa-clock fa-2x text-success" style="margin-bottom: 10px;"></i>
                                            <h6>Processing Time</h6>
                                            <h4 class="text-success">~30 seconds</h4>
                                            <small style="color: #6c757d;">After blockchain confirmation</small>
                                        </div>
                                    </div>
                                </div>
                            </div>

                            <div class="mb-3">
                                <label for="deposit-address" class="form-label deposit-address-label">
                                    <i class="fas fa-map-marker-alt me-2"></i>
                                    Platform Deposit Address
                                </label>
                                <div class="deposit-address" id="deposit-address">
                                    <?php echo htmlspecialchars($platform_ton_address); ?>
                                </div>
                                <small class="text-muted">This is our platform's TON wallet address where your TON will be sent</small>
                            </div>

                            <div id="qr-code" class="mb-3">
                                <img src="https://api.qrserver.com/v1/create-qr-code/?size=200x200&data=<?php echo urlencode($platform_ton_address); ?>" alt="Deposit QR Code">
                            </div>

                            <div class="mb-3">
                                <label for="deposit-amount" class="form-label">
                                    <i class="fas fa-dollar-sign me-2"></i>
                                    Deposit Amount
                                </label>
                                <div class="input-group">
                                    <span class="input-group-text">$</span>
                                    <input type="number" 
                                           class="form-control" 
                                           id="deposit-amount" 
                                           step="0.01" 
                                           min="<?php echo MINIMUM_DEPOSIT; ?>" 
                                           placeholder="Enter amount (e.g., <?php echo MINIMUM_DEPOSIT; ?>)" 
                                           required>
                                    <span class="input-group-text">USDT</span>
                                </div>
                                <div class="amount-validation">
                                    <i class="fas fa-exclamation-circle me-1"></i>
                                    Amount must be at least $<?php echo number_format(MINIMUM_DEPOSIT, 2); ?> USDT
                                </div>
                                <div id="ton-equivalent" class="text-muted" style="font-size: 0.9em; margin-top: 5px;">
                                    Equivalent TON: <span id="ton-amount">0</span> TON
                                </div>
                            </div>

                            <button id="initiate-deposit" class="btn btn-primary" disabled>
                                <i class="fas fa-paper-plane me-2"></i>
                                Initiate Deposit
                            </button>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Popup Modal -->
<div class="modal fade" id="deposit-popup" tabindex="-1" aria-labelledby="deposit-popup-label" aria-hidden="true">
    <div class="modal-dialog modal-dialog-centered">
        <div class="modal-content">
            <div class="modal-body">
                <div id="popup-loading" style="display: none;">
                    <div class="spinner-border text-primary" role="status"></div>
                    <p id="popup-message">Processing...</p>
                </div>
                <div id="popup-error" style="display: none;">
                    <i class="fas fa-exclamation-triangle text-danger me-2"></i>
                    <span id="popup-error-message"></span>
                </div>
                <div id="popup-success" style="display: none;">
                    <i class="fas fa-check-circle text-success me-2"></i>
                    <span id="popup-success-message"></span>
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
            </div>
        </div>
    </div>
</div>

<script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
<script src="https://unpkg.com/@tonconnect/ui@2.2.0/dist/tonconnect-ui.min.js"></script>
<script src="https://unpkg.com/tonweb@0.0.66/dist/tonweb.js"></script>
<script src="https://unpkg.com/buffer@6.0.3/index.js"></script>

<script>
console.log('Script loaded');

let tonConnectUI = null;
let tonPrice = null;
let isWalletConnected = false;
let hasSufficientBalance = false;

function showPopup(type, message) {
    $('#popup-loading, #popup-error, #popup-success').hide();
    if (type === 'loading') {
        $('#popup-message').text(message);
        $('#popup-loading').show();
    } else if (type === 'error') {
        $('#popup-error-message').text(message);
        $('#popup-error').show();
    } else if (type === 'success') {
        $('#popup-success-message').text(message);
        $('#popup-success').show();
    }
    $('#deposit-popup').modal('show');
}

function updateSubmitButton() {
    const usdtAmount = parseFloat($('#deposit-amount').val());
    const isAmountValid = !isNaN(usdtAmount) && usdtAmount >= <?php echo MINIMUM_DEPOSIT; ?>;
    $('#initiate-deposit').prop('disabled', !(isWalletConnected && tonPrice && hasSufficientBalance && isAmountValid));
}

function mapErrorToUserFriendly(error) {
    console.error('Error:', error);
    if (error.message.includes('TonWeb library not loaded')) {
        return 'Unable to process transaction. Please try again later.';
    } else if (error.message.includes('Failed to fetch TON price')) {
        return 'Unable to fetch TON price. Please check your network and try again.';
    } else if (error.message.includes('Failed to check balance')) {
        return 'Unable to verify your wallet balance. Please try again.';
    } else if (error.message.includes('Failed to build transaction')) {
        return 'Unable to prepare transaction. Please try again.';
    } else {
        return error.message || 'An unexpected error occurred. Please try again.';
    }
}

function initializeTonConnect() {
    console.log('Attempting to initialize TON Connect UI');
    if (window.TON_CONNECT_UI) {
        console.log('TON Connect UI library detected');
        tonConnectUI = new window.TON_CONNECT_UI.TonConnectUI({
            manifestUrl: 'http://localhost/oxyield/tonconnect-manifest.json',
            buttonRootId: 'ton-connect'
        });

        tonConnectUI.onStatusChange(async wallet => {
            console.log('Wallet status changed:', wallet);
            isWalletConnected = !!wallet;
            if (wallet) {
                $('#deposit-info').show();
                $('.process-flow, .deposit-address, .deposit-address + small, .deposit-address-label, #qr-code').hide();
                try {
                    const walletAddress = wallet.account.address;
                    const tonBalance = await checkTonBalance(walletAddress);
                    const usdtAmount = parseFloat($('#deposit-amount').val()) || 0;
                    const requiredTon = usdtAmount / tonPrice + 0.05;
                    hasSufficientBalance = tonBalance >= requiredTon;
                    updateSubmitButton();
                } catch (e) {
                    console.error('Balance check error:', e);
                    hasSufficientBalance = false;
                    updateSubmitButton();
                    showPopup('error', mapErrorToUserFriendly(e));
                }
            } else {
                $('#wallet-address').text('Not connected');
                $('#deposit-info').hide();
                $('.process-flow, .deposit-address, .deposit-address + small, .deposit-address-label, #qr-code').show();
                hasSufficientBalance = false;
                updateSubmitButton();
            }
        });
        $('#ton-connect-fallback').hide();
    } else {
        console.error('TON Connect UI library not loaded');
        $('#ton-connect-fallback').show();
        showPopup('error', 'Wallet connection failed to load. Please refresh the page.');
    }
}

// Retry initialization up to 3 times
let retryCount = 0;
const maxRetries = 3;
function tryInitializeTonConnect() {
    if (retryCount < maxRetries) {
        retryCount++;
        console.log(`Initialization attempt ${retryCount}/${maxRetries}`);
        if (!window.TON_CONNECT_UI) {
            setTimeout(tryInitializeTonConnect, 1000);
        } else {
            initializeTonConnect();
        }
    } else {
        console.error('Max retries reached for TON Connect UI');
        $('#ton-connect-fallback').show();
        showPopup('error', 'Wallet connection failed to load. Please refresh the page.');
    }
}

// Start initialization and fetch TON price
async function initialize() {
    try {
        tonPrice = await getTonPrice();
        updateSubmitButton();
    } catch (e) {
        console.error('Initial TON price fetch failed:', e);
        showPopup('error', 'Unable to fetch TON price. Please try again.');
    }
    tryInitializeTonConnect();
}
initialize();

async function getTonPrice() {
    try {
        const response = await $.ajax({
            url: 'get-ton-price',
            method: 'GET'
        });
        console.log('TON price fetched:', response.price);
        return parseFloat(response.price);
    } catch (e) {
        console.error('Error fetching TON price:', e);
        throw new Error('Failed to fetch TON price');
    }
}

async function checkTonBalance(walletAddress) {
    try {
        const response = await $.ajax({
            url: 'get-ton-balance',
            method: 'POST',
            data: { walletAddress },
            dataType: 'json'
        });
        console.log('TON balance response:', response);
        if (response.balance !== undefined) {
            console.log('TON balance fetched:', response.balance);
            return parseFloat(response.balance);
        } else {
            throw new Error('Invalid balance response');
        }
    } catch (e) {
        console.error('Error checking TON balance:', e);
        throw new Error('Failed to check balance');
    }
}

async function buildTransaction(tonAmount, walletAddress, destinationAddress) {
    console.log('Building transaction for TON amount:', tonAmount);
    const amountNano = Math.floor(tonAmount * 1e9); // Convert TON to nanoTON

    if (!window.TonWeb) {
        throw new Error('TonWeb library not loaded');
    }

    try {
        return {
            validUntil: Math.floor(Date.now() / 1000) + 360, // 6 minutes
            messages: [
                {
                    address: destinationAddress,
                    amount: amountNano.toString(),
                }
            ]
        };
    } catch (e) {
        console.error('Error building transaction:', e);
        throw new Error('Failed to build transaction: ' + e.message);
    }
}

$('#deposit-amount').on('input', async () => {
    const usdtAmount = parseFloat($('#deposit-amount').val());
    if (isNaN(usdtAmount) || usdtAmount <= 0) {
        $('#ton-equivalent').hide();
        updateSubmitButton();
        return;
    }
    try {
        const tonAmount = usdtAmount / tonPrice;
        $('#ton-amount').text(tonAmount.toFixed(4));
        $('#ton-equivalent').show();
        if (isWalletConnected) {
            const walletAddress = tonConnectUI.wallet.account.address;
            const tonBalance = await checkTonBalance(walletAddress);
            const requiredTon = tonAmount + 0.05;
            hasSufficientBalance = tonBalance >= requiredTon;
        }
        updateSubmitButton();
    } catch (e) {
        $('#ton-equivalent').hide();
        console.error('Error updating TON equivalent:', e);
        showPopup('error', mapErrorToUserFriendly(e));
    }
});

// Fallback base64-to-Uint8Array decoder
if (!window.Buffer || typeof window.Buffer.from !== 'function') {
    console.warn('Buffer polyfill not loaded or invalid. Using fallback base64 decoder.');
    window.Buffer = {
        from: function (data, encoding) {
            if (encoding !== 'base64') {
                throw new Error('Unsupported encoding: ' + encoding);
            }
            try {
                const binary = atob(data);
                const bytes = new Uint8Array(binary.length);
                for (let i = 0; i < binary.length; i++) {
                    bytes[i] = binary.charCodeAt(i);
                }
                return bytes;
            } catch (e) {
                throw new Error('Failed to decode base64: ' + e.message);
            }
        }
    };
}

$('#initiate-deposit').click(async () => {
    console.log('Initiate deposit clicked');
    showPopup('loading', 'Initiating transaction...');
    const usdtAmount = parseFloat($('#deposit-amount').val());

    try {
        if (!tonConnectUI) {
            console.error('tonConnectUI not initialized');
            showPopup('error', 'Wallet connection not initialized. Please refresh the page.');
            return;
        }

        const wallet = tonConnectUI.wallet;
        if (!wallet) {
            console.error('No wallet connected');
            showPopup('error', 'Please connect your wallet to proceed.');
            return;
        }

        const walletAddress = wallet.account.address;
        const tonAmount = usdtAmount / tonPrice;
        const requiredTon = tonAmount + 0.05; // Amount + gas fee

        const tonBalance = await checkTonBalance(walletAddress);
        if (tonBalance < requiredTon) {
            console.error('Insufficient TON balance:', tonBalance, 'Required:', requiredTon);
            showPopup('error', `Insufficient TON balance. You need at least ${requiredTon.toFixed(2)} TON.`);
            return;
        }

        const transaction = await buildTransaction(tonAmount, walletAddress, '<?php echo $platform_ton_address; ?>');
        console.log('Transaction built:', transaction);

        const result = await tonConnectUI.sendTransaction(transaction);
        console.log('Transaction result:', JSON.stringify(result, null, 2));
          console.log('Full result:', result);
        console.log('Transaction result keys:', Object.keys(result));
        const boc = result.boc;
        if (!boc) {
            throw new Error('No boc in transaction result');
        }
        if (!window.TonWeb) {
            throw new Error('TonWeb library not loaded');
        }
        console.log('Buffer.from available:', typeof window.Buffer.from === 'function');
        const tonWeb = new window.TonWeb();
        const cell = tonWeb.boc.Cell.fromBoc(window.Buffer.from(boc, 'base64'))[0];
        const tx_hash = cell.hash().toString('hex');
        console.log('Transaction sent, boc:', boc);
        console.log('Transaction hash:', tx_hash);
        console.log('View transaction: https://tonviewer.com/transaction/' + tx_hash);

        showPopup('loading', 'Verifying transaction...');

        $.ajax({
            url: 'process-deposit',
            type: 'POST',
            data: {
                confirm_deposit: 1,
                usdt_amount: usdtAmount,
                ton_amount: tonAmount,
                tx_hash: tx_hash,
                wallet_address: walletAddress,
                csrf_token: '<?php echo generateCsrfToken(); ?>'
            },
            success: response => {
                console.log('AJAX response:', JSON.stringify(response, null, 2));
                if (response.success) {
                    showPopup('success', response.success);
                    setTimeout(() => {
                        $('#deposit-popup').modal('hide');
                        location.reload();
                    }, 3000);
                } else {
                    console.error('AJAX errors:', response.errors);
                    showPopup('error', response.errors.join(' '));
                }
            },
            error: (xhr, status, error) => {
                console.error('AJAX error:', xhr, status, error);
                showPopup('error', 'Failed to confirm deposit. Please try again.');
            }
        });
    } catch (e) {
        console.error('Error:', e);
        showPopup('error', mapErrorToUserFriendly(e));
    }
});
</script>

<?php include 'includes/footer.php'; ?>