aged-personas-verification-javascripttemplate

document.addEventListener('DOMContentLoaded', function() {
    // Contact and payment addresses text copy functionality
    const copyButton = document.getElementById('copyButton');
    const codeBlock = document.getElementById('codeBlock');
    const messageDiv = document.getElementById('message');

    if (copyButton && codeBlock) {
        copyButton.addEventListener('click', function() {
            copyToClipboard(codeBlock, messageDiv);
        });
    }

    // MD5 hash copy functionality
    const md5CopyButton = document.getElementById('md5CopyButton');
    const md5Block = document.getElementById('md5Block');
    const md5MessageDiv = document.getElementById('md5Message');

    if (md5CopyButton && md5Block) {
        md5CopyButton.addEventListener('click', function() {
            copyToClipboard(md5Block, md5MessageDiv);
        });
    }

    // SHA-256 hash copy functionality
    const sha256CopyButton = document.getElementById('sha256CopyButton');
    const sha256Block = document.getElementById('sha256Block');
    const sha256MessageDiv = document.getElementById('sha256Message');

    if (sha256CopyButton && sha256Block) {
        sha256CopyButton.addEventListener('click', function() {
            copyToClipboard(sha256Block, sha256MessageDiv);
        });
    }

    // Copy function with failover
    function copyToClipboard(block, messageElement) {
        const text = block.textContent || block.innerText;

        // Try modern Clipboard API first
        if (navigator.clipboard) {
            navigator.clipboard.writeText(text)
                .then(() => {
                    showMessage('Copied to clipboard!', 'success', messageElement);
                })
                .catch((err) => {
                    console.warn('Clipboard API failed, falling back:', err);
                    fallbackCopyToClipboard(block, messageElement);
                });
        } else {
            // No Clipboard API support, use fallback
            fallbackCopyToClipboard(block, messageElement);
        }
    }

    // Fallback using document.execCommand
    function fallbackCopyToClipboard(block, messageElement) {
        try {
            const range = document.createRange();
            range.selectNode(block);
            window.getSelection().removeAllRanges();
            window.getSelection().addRange(range);

            const successful = document.execCommand('copy');
            window.getSelection().removeAllRanges();

            if (successful) {
                showMessage('Copied to clipboard!', 'success', messageElement);
            } else {
                throw new Error('Copy command failed');
            }
        } catch (err) {
            showMessage('Failed to copy automatically. Please copy manually (Ctrl+C/Cmd+C).', 'error', messageElement);
            console.error('Copy error:', err);
        }
    }

    function showMessage(text, type, messageElement) {
        // Check if message element exists
        if (!messageElement) return;

        messageElement.textContent = text;
        messageElement.className = 'message ' + type;
        messageElement.style.display = 'block';

        setTimeout(function() {
            messageElement.style.display = 'none';
        }, 3000);
    }
});