rusackas.github.io/qr.html at master · rusackas/rusackas.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Redirecting...</title>
    <style>
        body {
            font-family: 'Raleway', sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }
        .container {
            text-align: center;
            padding: 2rem;
        }
        h1 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            font-weight: 300;
        }
        .message {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }
        .spinner {
            width: 50px;
            height: 50px;
            margin: 2rem auto;
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-top-color: white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        .error {
            background: linear-gradient(135deg, #f5365c 0%, #f56565 100%);
        }
        .manual-link {
            color: white;
            text-decoration: underline;
            font-size: 1.1rem;
            margin-top: 1rem;
            display: inline-block;
        }
        .debug {
            margin-top: 2rem;
            padding: 1rem;
            background: rgba(0,0,0,0.2);
            border-radius: 8px;
            font-family: monospace;
            font-size: 0.9rem;
            display: none;
        }
        .debug.show {
            display: block;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Redirecting...</h1>
        <div class="message">Taking you to your destination</div>
        <div class="spinner"></div>
        <div id="manual-redirect" style="display: none;">
            <a href="#" class="manual-link" id="manual-link">Click here if you're not redirected</a>
        </div>
        <div class="debug" id="debug"></div>
    </div>

    <script>
        async function redirect() {
            const debugEl = document.getElementById('debug');
            const showDebug = window.location.search.includes('debug=true');

            if (showDebug) {
                debugEl.classList.add('show');
            }

            function log(message) {
                console.log(message);
                if (showDebug) {
                    debugEl.innerHTML += message + '<br>';
                }
            }

            try {
                // Get URL parameters
                const urlParams = new URLSearchParams(window.location.search);
                const target = urlParams.get('to');

                log('Loading configuration...');

                // Fetch configuration
                const response = await fetch('/qr-config.json');
                if (!response.ok) {
                    throw new Error('Failed to load configuration');
                }

                const config = await response.json();
                log('Configuration loaded successfully');

                let redirectUrl;
                let delay = 0;

                // Determine redirect URL
                if (target && config.redirects[target]) {
                    redirectUrl = config.redirects[target];
                    log(`Using named redirect: ${target} -> ${redirectUrl}`);
                } else if (config.default) {
                    redirectUrl = config.default.url;
                    delay = config.default.delay || 0;
                    log(`Using default redirect: ${redirectUrl}`);
                } else {
                    throw new Error('No redirect URL configured');
                }

                // Update UI
                document.querySelector('.message').textContent = `Redirecting to ${new URL(redirectUrl).hostname || 'destination'}...`;

                // Show manual redirect link
                setTimeout(() => {
                    document.getElementById('manual-redirect').style.display = 'block';
                    document.getElementById('manual-link').href = redirectUrl;
                }, 1000);

                // Perform redirect
                setTimeout(() => {
                    log(`Redirecting to: ${redirectUrl}`);
                    window.location.href = redirectUrl;
                }, delay);

            } catch (error) {
                console.error('Redirect error:', error);
                document.body.classList.add('error');
                document.querySelector('h1').textContent = 'Oops!';
                document.querySelector('.message').textContent = 'Something went wrong with the redirect.';
                document.querySelector('.spinner').style.display = 'none';

                if (showDebug) {
                    log('ERROR: ' + error.message);
                }

                // Fallback to homepage
                setTimeout(() => {
                    document.getElementById('manual-redirect').style.display = 'block';
                    document.getElementById('manual-link').href = '/';
                    document.getElementById('manual-link').textContent = 'Go to homepage';
                }, 500);
            }
        }

        // Start redirect process
        redirect();
    </script>
</body>
</html>