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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>GCP Accelerator Availability Map</title>
    <style>
        body { margin: 0; font-family: sans-serif; background-color: #111; color: #eee; }
        #globeViz { width: 100vw; height: 100vh; }
        #controls {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(0, 0, 0, 0.7);
            padding: 15px;
            border-radius: 5px;
            max-height: 90vh;
            overflow-y: auto;
            z-index: 10;
        }
        #controls h3 { margin-top: 0; border-bottom: 1px solid #555; padding-bottom: 5px; }
        #controls label {
            display: block;
            margin-bottom: 8px;
            cursor: pointer;
            font-size: 0.9em;
        }
        #controls input[type="checkbox"] {
            margin-right: 5px;
        }
         #info-panel {
            position: absolute;
            bottom: 10px;
            left: 10px;
            background: rgba(0, 0, 0, 0.8);
            padding: 10px;
            border-radius: 5px;
            max-width: 300px;
            font-size: 0.85em;
            z-index: 10;
            display: none; /* Hidden by default */
         }
         #info-panel h4 { margin: 0 0 5px 0; }
         #info-panel ul { margin: 0; padding-left: 15px; }
         #info-panel li { margin-bottom: 3px; }
    </style>
    <!-- Import globe.gl library -->
    <script src="//unpkg.com/three"></script>
    <script src="//unpkg.com/globe.gl"></script>
</head>
<body>

    <div id="globeViz"></div>
    <div id="controls">
        <h3>Filter by Accelerator:</h3>
        <div id="accelerator-filters">
            <!-- Filters will be populated by JavaScript -->
        </div>
        <button id="show-all" style="margin-top: 10px; padding: 5px 10px;">Show All</button>
        <button id="hide-all" style="margin-top: 10px; padding: 5px 10px;">Hide All</button>
    </div>
    <div id="info-panel">
        <!-- Info about hovered location -->
    </div>

    <script>
        // --- 1. Data Processing ---

        // Raw data based on the provided table
        // Note: Some locations might be slightly approximated. Need exact coordinates for higher precision.
        // Note: Handling duplicates and summarizing zones/notes.
        const rawData = [
            { accel: "TPU v2", region: "us-central1", zones: "b, c, f", location: "Council Bluffs, Iowa, USA" },
            { accel: "TPU v2", region: "europe-west4", zones: "a", location: "Eemshaven, Netherlands" },
            { accel: "TPU v2", region: "asia-east1", zones: "c", location: "Changhua County, Taiwan" },
            // Some TPU v2/v3 entries seem redundant in the input, consolidating them by location
            { accel: "TPU v3", region: "us-central1", zones: "a, b, f", location: "Council Bluffs, Iowa, USA" },
            { accel: "TPU v3", region: "europe-west4", zones: "a", location: "Eemshaven, Netherlands" },
            { accel: "TPU v4", region: "us-central2", zones: "b", location: "Council Bluffs, Iowa, USA", notes: "Location assumed near us-central1" }, // Added note about assumption
            { accel: "TPU v5e", region: "us-central1", zones: "a", location: "Council Bluffs, Iowa, USA" },
            { accel: "TPU v5e", region: "us-east5", zones: "a, b, c", location: "Columbus, Ohio, USA" },
            { accel: "TPU v5e", region: "us-south1", zones: "a", location: "Dallas, Texas, USA" },
            { accel: "TPU v5e", region: "us-west1", zones: "c", location: "The Dalles, Oregon, USA" },
            { accel: "TPU v5e", region: "us-west4", zones: "a", location: "Las Vegas, Nevada, USA" },
            { accel: "TPU v5e", region: "europe-west1", zones: "b", location: "St. Ghislain, Belgium" },
            { accel: "TPU v5e", region: "asia-southeast1", zones: "b", location: "Jurong West, Singapore" },
            { accel: "TPU v5p", region: "us-east5", zones: "a", location: "Columbus, Ohio, USA" },
            { accel: "TPU v5p", region: "europe-west4", zones: "b", location: "Eemshaven, Netherlands" },
            { accel: "TPU v6e", region: "us-east1", zones: "d", location: "Moncks Corner, South Carolina, USA" },
            { accel: "TPU v6e", region: "us-east5", zones: "b", location: "Columbus, Ohio, USA" },
            { accel: "TPU v6e", region: "europe-west4", zones: "a", location: "Eemshaven, Netherlands" },
            { accel: "TPU v6e", region: "asia-northeast1", zones: "b", location: "Tokyo, Japan" },
            { accel: "H100 A3 Mega", region: "us-central1", zones: "a, b*, c", location: "Council Bluffs, Iowa, USA", notes: "b: Limited capacity" },
            { accel: "H100 A3 Mega", region: "us-east4", zones: "a, b, c", location: "Ashburn, Virginia, USA" },
            { accel: "H100 A3 Mega", region: "us-west1", zones: "a, b", location: "The Dalles, Oregon, USA" },
            { accel: "H100 A3 Mega", region: "us-west4", zones: "a", location: "Las Vegas, Nevada, USA" },
            { accel: "H100 A3 Mega", region: "asia-northeast1", zones: "b", location: "Tokyo, Japan" },
            { accel: "H100 A3 Mega", region: "asia-southeast1", zones: "b, c", location: "Jurong West, Singapore" },
            { accel: "H100 A3 Mega", region: "australia-southeast1", zones: "c*", location: "Sydney, Australia", notes: "Limited capacity" },
            { accel: "H100 A3 Mega", region: "europe-west1", zones: "b*, c*", location: "St. Ghislain, Belgium", notes: "Limited capacity" },
            { accel: "H100 A3 Mega", region: "europe-west4", zones: "b, c", location: "Eemshaven, Netherlands" },
            { accel: "H100 A3 High", region: "us-central1", zones: "a, c", location: "Council Bluffs, Iowa, USA" },
            { accel: "H100 A3 High", region: "us-east4", zones: "a, b", location: "Ashburn, Virginia, USA" },
            { accel: "H100 A3 High", region: "us-east5", zones: "a", location: "Columbus, Ohio, USA" },
            { accel: "H100 A3 High", region: "us-west1", zones: "a, b", location: "The Dalles, Oregon, USA" },
            { accel: "H100 A3 High", region: "us-west4", zones: "a", location: "Las Vegas, Nevada, USA" },
            { accel: "H100 A3 High", region: "asia-northeast1", zones: "b", location: "Tokyo, Japan" },
            { accel: "H100 A3 High", region: "asia-southeast1", zones: "b, c", location: "Jurong West, Singapore" },
            { accel: "H100 A3 High", region: "europe-west1", zones: "b*", location: "St. Ghislain, Belgium", notes: "Limited capacity" },
            { accel: "H100 A3 Edge", region: "northamerica-northeast2", zones: "c", location: "Toronto, Ontario, Canada" },
            { accel: "H100 A3 Edge", region: "asia-northeast1", zones: "b", location: "Tokyo, Japan" },
            { accel: "H100 A3 Edge", region: "asia-northeast3", zones: "a, c", location: "Seoul, South Korea" },
            { accel: "H100 A3 Edge", region: "asia-south1", zones: "c", location: "Mumbai, India" },
            { accel: "H100 A3 Edge", region: "europe-west2", zones: "b", location: "London, UK" },
            { accel: "H100 A3 Edge", region: "europe-west3", zones: "a", location: "Frankfurt, Germany" },
            { accel: "A100 A2 Ultra", region: "us-central1", zones: "a, c", location: "Council Bluffs, Iowa, USA" },
            { accel: "A100 A2 Ultra", region: "us-east4", zones: "c", location: "Ashburn, Virginia, USA" },
            { accel: "A100 A2 Ultra", region: "us-east5", zones: "b", location: "Columbus, Ohio, USA" },
            { accel: "A100 A2 Ultra", region: "asia-southeast1", zones: "c", location: "Jurong West, Singapore" },
            { accel: "A100 A2 Ultra", region: "europe-west4", zones: "a, b, c", location: "Eemshaven, Netherlands" },
            { accel: "A100 40GB A2 Standard", region: "us-central1", zones: "a*, b*, c*, f*", location: "Council Bluffs, Iowa, USA", notes: "a2-megagpu-16g only" },
            { accel: "A100 40GB A2 Standard", region: "us-east1", zones: "b", location: "Moncks Corner, South Carolina, USA" },
            { accel: "A100 40GB A2 Standard", region: "us-west1", zones: "b", location: "The Dalles, Oregon, USA" },
            { accel: "A100 40GB A2 Standard", region: "us-west3", zones: "b", location: "Salt Lake City, Utah, USA" },
            { accel: "A100 40GB A2 Standard", region: "us-west4", zones: "b", location: "Las Vegas, Nevada, USA" },
            { accel: "A100 40GB A2 Standard", region: "asia-northeast1", zones: "a, c", location: "Tokyo, Japan" },
            { accel: "A100 40GB A2 Standard", region: "asia-northeast3", zones: "a, b", location: "Seoul, South Korea" },
            { accel: "A100 40GB A2 Standard", region: "asia-southeast1", zones: "b, c*", location: "Jurong West, Singapore", notes: "c: a2-megagpu-16g only" },
            { accel: "A100 40GB A2 Standard", region: "me-west1", zones: "a, c", location: "Tel Aviv, Israel" },
            { accel: "A100 40GB A2 Standard", region: "europe-west4", zones: "a*, b*", location: "Eemshaven, Netherlands", notes: "a2-megagpu-16g only" },
            { accel: "G2 (L4)", region: "us-central1", zones: "a, b, c", location: "Council Bluffs, Iowa, USA" },
            { accel: "G2 (L4)", region: "us-east1", zones: "b, c, d", location: "Moncks Corner, South Carolina, USA" },
            { accel: "G2 (L4)", region: "us-east4", zones: "a", location: "Ashburn, Virginia, USA" },
            { accel: "G2 (L4)", region: "us-west1", zones: "a, b, c", location: "The Dalles, Oregon, USA" },
            { accel: "G2 (L4)", region: "us-west4", zones: "a, c", location: "Las Vegas, Nevada, USA" },
            { accel: "G2 (L4)", region: "northamerica-northeast2", zones: "a", location: "Toronto, Ontario, Canada" },
            { accel: "G2 (L4)", region: "asia-east1", zones: "a, b, c", location: "Changhua County, Taiwan" },
            { accel: "G2 (L4)", region: "asia-northeast1", zones: "a, b, c", location: "Tokyo, Japan" },
            { accel: "G2 (L4)", region: "asia-northeast3", zones: "a, b", location: "Seoul, South Korea" },
            { accel: "G2 (L4)", region: "asia-south1", zones: "a, b, c", location: "Mumbai, India" },
            { accel: "G2 (L4)", region: "asia-southeast1", zones: "a, b, c", location: "Jurong West, Singapore" },
            { accel: "G2 (L4)", region: "australia-southeast1", zones: "a", location: "Sydney, Australia" },
            { accel: "G2 (L4)", region: "europe-west1", zones: "b, c", location: "St. Ghislain, Belgium" },
            { accel: "G2 (L4)", region: "europe-west2", zones: "a, b", location: "London, UK" },
            { accel: "G2 (L4)", region: "europe-west3", zones: "a, b", location: "Frankfurt, Germany" },
            { accel: "G2 (L4)", region: "europe-west4", zones: "a, b, c", location: "Eemshaven, Netherlands" },
            { accel: "G2 (L4)", region: "europe-west6", zones: "b, c", location: "Zurich, Switzerland" },
            { accel: "G2 (L4)", region: "me-central2", zones: "a", location: "Dammam, Saudi Arabia" },
            { accel: "N1+T4", region: "us-central1", zones: "a, b, f", location: "Council Bluffs, Iowa, USA" },
            { accel: "N1+T4", region: "us-east1", zones: "c, d", location: "Moncks Corner, South Carolina, USA" },
            { accel: "N1+T4", region: "us-east4", zones: "a, b", location: "Ashburn, Virginia, USA" },
            { accel: "N1+T4", region: "us-west1", zones: "a, b", location: "The Dalles, Oregon, USA" },
            { accel: "N1+T4", region: "us-west3", zones: "b", location: "Salt Lake City, Utah, USA" },
            { accel: "N1+T4", region: "us-west4", zones: "a, b", location: "Las Vegas, Nevada, USA" },
            { accel: "N1+T4", region: "northamerica-northeast1", zones: "c", location: "Montréal, Québec, Canada" },
            { accel: "N1+T4", region: "asia-east1", zones: "a, c", location: "Changhua County, Taiwan" },
            { accel: "N1+T4", region: "asia-east2", zones: "a, c", location: "Hong Kong" },
            { accel: "N1+T4", region: "asia-northeast1", zones: "a, c", location: "Tokyo, Japan" },
            { accel: "N1+T4", region: "asia-northeast3", zones: "b, c", location: "Seoul, South Korea" },
            { accel: "N1+T4", region: "asia-south1", zones: "a, b", location: "Mumbai, India" },
            { accel: "N1+T4", region: "asia-southeast1", zones: "a, b, c", location: "Jurong West, Singapore" },
            { accel: "N1+T4", region: "asia-southeast2", zones: "a", location: "Jakarta, Indonesia" },
            { accel: "N1+T4", region: "australia-southeast1", zones: "a, c", location: "Sydney, Australia" },
            { accel: "N1+T4", region: "europe-central2", zones: "b, c", location: "Warsaw, Poland" },
            { accel: "N1+T4", region: "europe-west1", zones: "b, c, d", location: "St. Ghislain, Belgium" },
            { accel: "N1+T4", region: "europe-west2", zones: "a, b", location: "London, UK" },
            { accel: "N1+T4", region: "europe-west3", zones: "b", location: "Frankfurt, Germany" },
            { accel: "N1+T4", region: "europe-west4", zones: "a, b, c", location: "Eemshaven, Netherlands" },
            { accel: "N1+T4", region: "me-west1", zones: "b, c", location: "Tel Aviv, Israel" },
            { accel: "N1+T4", region: "southamerica-east1", zones: "a, c", location: "Osasco, São Paulo, Brazil" },
            { accel: "N1+V100", region: "us-central1", zones: "a, b, c, f", location: "Council Bluffs, Iowa, USA" },
            { accel: "N1+V100", region: "us-east1", zones: "c", location: "Moncks Corner, South Carolina, USA" },
            { accel: "N1+V100", region: "us-west1", zones: "a, b", location: "The Dalles, Oregon, USA" },
            { accel: "N1+V100", region: "asia-east1", zones: "c", location: "Changhua County, Taiwan" },
            { accel: "N1+V100", region: "europe-west4", zones: "a, b, c", location: "Eemshaven, Netherlands" },
            { accel: "N1+P100", region: "us-central1", zones: "c, f", location: "Council Bluffs, Iowa, USA" },
            { accel: "N1+P100", region: "us-east1", zones: "b, c", location: "Moncks Corner, South Carolina, USA" },
            { accel: "N1+P100", region: "us-west1", zones: "a, b", location: "The Dalles, Oregon, USA" },
            { accel: "N1+P100", region: "asia-east1", zones: "a, c", location: "Changhua County, Taiwan" },
            { accel: "N1+P100", region: "australia-southeast1", zones: "c", location: "Sydney, Australia" },
            { accel: "N1+P100", region: "europe-west1", zones: "b, d", location: "St. Ghislain, Belgium" },
            { accel: "N1+P100", region: "europe-west4", zones: "a", location: "Eemshaven, Netherlands" },
            { accel: "N1+P4", region: "us-central1", zones: "a, c", location: "Council Bluffs, Iowa, USA" },
            { accel: "N1+P4", region: "us-east4", zones: "a, b, c", location: "Ashburn, Virginia, USA" },
            { accel: "N1+P4", region: "northamerica-northeast1", zones: "a, b, c", location: "Montréal, Québec, Canada" },
            { accel: "N1+P4", region: "us-west2", zones: "b, c", location: "Los Angeles, California, USA" },
            { accel: "N1+P4", region: "asia-southeast1", zones: "b, c", location: "Jurong West, Singapore" },
            { accel: "N1+P4", region: "australia-southeast1", zones: "a, b", location: "Sydney, Australia" },
            { accel: "N1+P4", region: "europe-west4", zones: "b, c", location: "Eemshaven, Netherlands" }
        ];

        // Geocode locations (Approximate coordinates)
        const locationsCoords = {
            "Council Bluffs, Iowa, USA": { lat: 41.2619, lng: -95.8513 },
            "Eemshaven, Netherlands": { lat: 53.4421, lng: 6.8349 },
            "Changhua County, Taiwan": { lat: 24.0729, lng: 120.5446 },
            "Columbus, Ohio, USA": { lat: 39.9612, lng: -82.9988 },
            "Dallas, Texas, USA": { lat: 32.7767, lng: -96.7970 },
            "The Dalles, Oregon, USA": { lat: 45.5946, lng: -121.1787 },
            "Las Vegas, Nevada, USA": { lat: 36.1699, lng: -115.1398 },
            "St. Ghislain, Belgium": { lat: 50.4430, lng: 3.8181 },
            "Jurong West, Singapore": { lat: 1.3392, lng: 103.7062 },
            "Moncks Corner, South Carolina, USA": { lat: 33.1918, lng: -80.0173 },
            "Tokyo, Japan": { lat: 35.6895, lng: 139.6917 },
            "Ashburn, Virginia, USA": { lat: 39.0438, lng: -77.4874 },
            "Sydney, Australia": { lat: -33.8688, lng: 151.2093 },
            "Toronto, Ontario, Canada": { lat: 43.6532, lng: -79.3832 },
            "Seoul, South Korea": { lat: 37.5665, lng: 126.9780 },
            "Mumbai, India": { lat: 19.0760, lng: 72.8777 },
            "London, UK": { lat: 51.5074, lng: -0.1278 },
            "Frankfurt, Germany": { lat: 50.1109, lng: 8.6821 },
            "Salt Lake City, Utah, USA": { lat: 40.7608, lng: -111.8910 },
            "Tel Aviv, Israel": { lat: 32.0853, lng: 34.7818 },
            "Zurich, Switzerland": { lat: 47.3769, lng: 8.5417 },
            "Dammam, Saudi Arabia": { lat: 26.4207, lng: 50.0888 },
            "Montréal, Québec, Canada": { lat: 45.5017, lng: -73.5673 },
            "Hong Kong": { lat: 22.3193, lng: 114.1694 },
            "Jakarta, Indonesia": { lat: -6.2088, lng: 106.8456 },
            "Warsaw, Poland": { lat: 52.2297, lng: 21.0122 },
            "Osasco, São Paulo, Brazil": { lat: -23.5329, lng: -46.7919 },
            "Los Angeles, California, USA": { lat: 34.0522, lng: -118.2437 }
        };

        // Aggregate data by location
        const locationsData = {};
        const uniqueAccelerators = new Set();

        rawData.forEach(item => {
            const locName = item.location;
            if (!locationsCoords[locName]) {
                console.warn(`Coordinates not found for: ${locName}`);
                return; // Skip if no coordinates
            }

            if (!locationsData[locName]) {
                locationsData[locName] = {
                    name: locName,
                    lat: locationsCoords[locName].lat,
                    lng: locationsCoords[locName].lng,
                    accelerators: []
                };
            }

            // Add accelerator details if not already present for this location
            // (Simple check based on accel name only for this example)
            if (!locationsData[locName].accelerators.some(a => a.name === item.accel)) {
                 locationsData[locName].accelerators.push({
                     name: item.accel,
                     region: item.region,
                     zones: item.zones,
                     notes: item.notes || '' // Include notes if available
                 });
            }
            uniqueAccelerators.add(item.accel);
        });

        // Convert aggregated data to array format for globe.gl
        const pointsData = Object.values(locationsData);

        // Sort accelerator names for consistent filter order
        const sortedAccelerators = Array.from(uniqueAccelerators).sort();

        // --- 2. Globe Initialization & Configuration ---
        const myGlobe = Globe();
        const globeVizElement = document.getElementById('globeViz');
        const infoPanel = document.getElementById('info-panel');

        myGlobe(globeVizElement)
            .globeImageUrl('//unpkg.com/three-globe/example/img/earth-night.jpg')
            .backgroundImageUrl('//unpkg.com/three-globe/example/img/night-sky.png')
            .pointsData(pointsData) // Initial data
            .pointColor(() => '#67ff94') // Nice bright green color for markers
            .pointAltitude(0.01) // Slightly raise points off the surface
            .pointRadius(0.25) // Adjust size as needed
            .pointLabel(d => d.name)
            .onPointHover(d => { // Show info panel on hover
                if (d) {
                    infoPanel.style.display = 'block';
                    let accelHtml = '<ul>';
                    d.accelerators.forEach(accel => {
                         accelHtml += `<li><b>${accel.name}</b> (${accel.region}: ${accel.zones})${accel.notes ? ` <i>(${accel.notes})</i>` : ''}</li>`;
                    });
                    accelHtml += '</ul>';
                    infoPanel.innerHTML = `<h4>${d.name}</h4>${accelHtml}`;
                } else {
                    infoPanel.style.display = 'none'; // Hide if not hovering over a point
                }
            });

        // Auto-rotate globe initially
        myGlobe.controls().autoRotate = true;
        myGlobe.controls().autoRotateSpeed = 0.2;

        // Stop auto-rotate on user interaction
        myGlobe.controls().addEventListener('start', () => {
            myGlobe.controls().autoRotate = false;
        });

        // --- 3. Filter Implementation ---
        const filtersContainer = document.getElementById('accelerator-filters');
        const filterCheckboxes = [];

        sortedAccelerators.forEach(accel => {
            const label = document.createElement('label');
            const checkbox = document.createElement('input');
            checkbox.type = 'checkbox';
            checkbox.value = accel;
            checkbox.checked = true; // Start with all checked
            checkbox.addEventListener('change', updateFilters);

            label.appendChild(checkbox);
            label.appendChild(document.createTextNode(` ${accel}`));
            filtersContainer.appendChild(label);
            filterCheckboxes.push(checkbox);
        });

        function updateFilters() {
            const selectedAccelerators = filterCheckboxes
                .filter(cb => cb.checked)
                .map(cb => cb.value);

            const filteredPoints = pointsData.filter(location => {
                // Keep location if it has at least one of the selected accelerators
                return location.accelerators.some(accel => selectedAccelerators.includes(accel.name));
            });

            myGlobe.pointsData(filteredPoints); // Update the globe
        }

        // Show/Hide All buttons
        document.getElementById('show-all').addEventListener('click', () => {
            filterCheckboxes.forEach(cb => cb.checked = true);
            updateFilters();
        });

        document.getElementById('hide-all').addEventListener('click', () => {
            filterCheckboxes.forEach(cb => cb.checked = false);
            updateFilters();
        });

        // --- 4. Initial Setup ---
        // Optional: Center the view on a specific point initially
        // myGlobe.pointOfView({ lat: 30, lng: -20, altitude: 2.5 });

        // Handle window resize
        window.addEventListener('resize', () => {
            myGlobe.width(window.innerWidth);
            myGlobe.height(window.innerHeight);
        });

    </script>

</body>
</html>