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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>CodeCover Quest | Pattern Analysis</title>
    <link rel="icon" type="image/x-icon" href="/static/favicon.ico">
    <script src="https://cdn.tailwindcss.com"></script>
    <script src="https://unpkg.com/feather-icons"></script>
    <script src="https://cdn.jsdelivr.net/npm/vanta@latest/dist/vanta.net.min.js"></script>
    <style>
        @import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&display=swap');
        body {
            font-family: 'Space Grotesk', sans-serif;
        }
        .gradient-bg {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        .code-block {
            background-color: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(10px);
        }
        .pattern-cell {
            font-family: 'Courier New', monospace;
        }
        .highlight {
            background-color: rgba(255, 255, 0, 0.2);
        }
    </style>
</head>
<body class="gradient-bg min-h-screen text-white">
    <div id="vanta-net" class="fixed inset-0 z-0"></div>
    
    <div class="relative z-10 container mx-auto px-4 py-16">
        <header class="mb-8">
            <h1 class="text-4xl md:text-5xl font-bold mb-2 tracking-tight">Pattern Analysis</h1>
            <p class="text-lg opacity-90">Top combinatorial patterns for optimal coverage</p>
            <nav class="mt-4 flex space-x-4">
                <a href="/" class="text-white opacity-80 hover:opacity-100">← Back to Home</a>
                <a href="/weighted-coverings.html" class="text-white opacity-80 hover:opacity-100">Weighted Coverings →</a>
            </nav>
        </header>
<div class="grid grid-cols-1 md:grid-cols-4 gap-4 mb-8">
            <div class="code-block rounded-xl p-4">
                <h3 class="font-bold mb-2 flex items-center">
                    <i data-feather="filter" class="mr-2"></i> Filter
                </h3>
                <input type="text" id="patternFilter" placeholder="Search patterns..." class="w-full bg-gray-800 text-white rounded px-3 py-2 mb-2">
                <div class="flex items-center mb-2">
                    <input type="checkbox" id="showHighProb" class="mr-2" checked>
                    <label for="showHighProb">High Probability</label>
                </div>
                <div class="flex items-center">
                    <input type="checkbox" id="showLowInv" class="mr-2" checked>
                    <label for="showLowInv">Low 1/Probability</label>
                </div>
            </div>
            <div class="code-block rounded-xl p-4">
                <h3 class="font-bold mb-2 flex items-center">
                    <i data-feather="bar-chart-2" class="mr-2"></i> Stats
                </h3>
                <div class="mb-1">Total Patterns: <span id="totalPatterns" class="font-bold">0</span></div>
                <div class="mb-1">Showing: <span id="showingPatterns" class="font-bold">0</span></div>
                <div>Avg Probability: <span id="avgProb" class="font-bold">0.00</span></div>
            </div>
            <div class="code-block rounded-xl p-4">
                <h3 class="font-bold mb-2 flex items-center">
                    <i data-feather="info" class="mr-2"></i> Legend
                </h3>
                <div class="flex items-center mb-1">
                    <div class="w-3 h-3 bg-green-500 mr-2"></div>
                    <span>Highest 10%</span>
                </div>
                <div class="flex items-center mb-1">
                    <div class="w-3 h-3 bg-yellow-500 mr-2"></div>
                    <span>Middle 80%</span>
                </div>
                <div class="flex items-center">
                    <div class="w-3 h-3 bg-red-500 mr-2"></div>
                    <span>Lowest 10%</span>
                </div>
            </div>
            <div class="code-block rounded-xl p-4">
                <h3 class="font-bold mb-2 flex items-center">
                    <i data-feather="download" class="mr-2"></i> Export
                </h3>
                <button id="exportCSV" class="w-full bg-blue-600 hover:bg-blue-700 text-white py-2 px-4 rounded mb-2">
                    Export to CSV
                </button>
                <button id="exportJSON" class="w-full bg-purple-600 hover:bg-purple-700 text-white py-2 px-4 rounded">
                    Export to JSON
                </button>
            </div>
        </div>

        <div class="overflow-x-auto">
            <table class="w-full code-block rounded-xl overflow-hidden">
                <thead>
                    <tr class="bg-gray-900">
                        <th class="py-3 px-4 text-left">Pattern</th>
                        <th class="py-3 px-4 text-right">Probability</th>
                        <th class="py-3 px-4 text-right">1/Prob</th>
                        <th class="py-3 px-4 text-left">A</th>
                        <th class="py-3 px-4 text-left">B</th>
                        <th class="py-3 px-4 text-left">C</th>
                        <th class="py-3 px-4 text-left">D</th>
                    </tr>
                </thead>
                <tbody id="patternTable">
                    <!-- Patterns will be loaded here -->
                </tbody>
            </table>
        </div>
        <div class="text-center mt-8">
            <button id="loadMore" class="px-6 py-2 bg-indigo-600 hover:bg-indigo-700 text-white rounded-full">
                <i data-feather="plus-circle" class="mr-2 inline"></i>
                Load More Patterns
            </button>
        </div>
</div>

    <script>
        // Initialize Vanta.js effect
VANTA.NET({
            el: "#vanta-net",
            mouseControls: true,
            touchControls: true,
            gyroControls: false,
            minHeight: 200.00,
            minWidth: 200.00,
            scale: 1.00,
            scaleMobile: 1.00,
            color: 0x7d5fff,
            backgroundColor: 0x0,
            points: 10.00,
            maxDistance: 22.00
        });

        // Initialize table with sample data
        function loadPatterns(patterns) {
            const table = document.getElementById('patternTable');
            table.innerHTML = '';
            
            patterns.forEach((p, index) => {
                const row = document.createElement('tr');
                row.className = index % 2 === 0 ? 'bg-gray-800 bg-opacity-50' : 'bg-gray-800 bg-opacity-70';
                
                // Determine color class based on probability percentile
                let colorClass = '';
                if (index < patterns.length * 0.1) {
                    colorClass = 'text-green-400';
                } else if (index >= patterns.length * 0.9) {
                    colorClass = 'text-red-400';
                } else {
                    colorClass = 'text-yellow-400';
                }

                row.innerHTML = `
                    <td class="py-3 px-4 pattern-cell ${colorClass} font-mono">${p.pattern}</td>
                    <td class="py-3 px-4 text-right font-mono">${p.prob.toExponential(4)}</td>
                    <td class="py-3 px-4 text-right font-mono">${p.invProb}</td>
                    <td class="py-3 px-4 text-center">${p.a}</td>
                    <td class="py-3 px-4 text-center">${p.b}</td>
                    <td class="py-3 px-4 text-center">${p.c}</td>
                    <td class="py-3 px-4 text-center">${p.d}</td>
`;
                table.appendChild(row);
            });
            
            document.getElementById('totalPatterns').textContent = patterns.length;
            document.getElementById('showingPatterns').textContent = patterns.length;
        // Calculate average probability (weighted geometric mean)
        const logAvg = patterns.reduce((sum, p) => sum + Math.log(p.prob), 0) / patterns.length;
        document.getElementById('avgProb').textContent = Math.exp(logAvg).toExponential(4);
}
        // Load patterns from API endpoint
        async function fetchPatterns() {
            try {
                const response = await fetch('/api/patterns');
                if (!response.ok) throw new Error('Failed to fetch patterns');
                const patterns = await response.json();
                loadPatterns(patterns);
            } catch (error) {
                console.error('Error loading patterns:', error);
                // Fallback to sample data
                const samplePatterns = [
                    { pattern: "0(12)111(02)0010", prob: 0.045678, invProb: 22, a: 40, b: 13, c: 40, d: 4 },
                    { pattern: "1(02)010(12)1101", prob: 0.038912, invProb: 26, a: 71, b: 35, c: 98, d: 17 }
                ];
                loadPatterns(samplePatterns);
            }
        }

        // Initialize with API data
        fetchPatterns();

        // Export functionality
        document.getElementById('exportCSV').addEventListener('click', () => {
            const patterns = Array.from(document.querySelectorAll('#patternTable tr')).map(row => {
                return Array.from(row.querySelectorAll('td')).map(td => td.textContent).join(',');
            });
            const csvContent = "data:text/csv;charset=utf-8," + patterns.join("\n");
            const encodedUri = encodeURI(csvContent);
            const link = document.createElement("a");
            link.setAttribute("href", encodedUri);
            link.setAttribute("download", "patterns.csv");
            document.body.appendChild(link);
            link.click();
        });

        document.getElementById('exportJSON').addEventListener('click', () => {
            const patterns = Array.from(document.querySelectorAll('#patternTable tr')).map(row => {
                const cells = Array.from(row.querySelectorAll('td'));
                return {
                    pattern: cells[0].textContent,
                    probability: parseFloat(cells[1].textContent),
                    invProbability: parseInt(cells[2].textContent),
                    a: parseInt(cells[3].textContent),
                    b: parseInt(cells[4].textContent),
                    c: parseInt(cells[5].textContent),
                    d: parseInt(cells[6].textContent)
                };
            });
            const jsonContent = "data:text/json;charset=utf-8," + JSON.stringify(patterns, null, 2);
            const encodedUri = encodeURI(jsonContent);
            const link = document.createElement("a");
            link.setAttribute("href", encodedUri);
            link.setAttribute("download", "patterns.json");
            document.body.appendChild(link);
            link.click();
        });

        // Filter functionality
        document.getElementById('patternFilter').addEventListener('input', (e) => {
            const filter = e.target.value.toLowerCase();
            const rows = document.querySelectorAll('#patternTable tr');
            rows.forEach(row => {
                const pattern = row.querySelector('td:first-child').textContent.toLowerCase();
                row.style.display = pattern.includes(filter) ? '' : 'none';
            });
            updateShowingCount();
        });

        function updateShowingCount() {
            const showing = document.querySelectorAll('#patternTable tr:not([style*="none"])').length;
            document.getElementById('showingPatterns').textContent = showing;
        }

        // Feather icons
feather.replace();
    </script>
</body>
</html>