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<html><head><base href="https://earth-historic-image-dataset.org"><title>Earth Historic Image Dataset - Interactive Map</title>
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css" />
<link rel="stylesheet" href="https://unpkg.com/leaflet-draw@1.0.4/dist/leaflet.draw.css" />
<style>
  body {
    font-family: 'Courier New', monospace;
    line-height: 1.6;
    color: #333;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: #f4e9d6;
  }
  header {
    background-color: #8b4513;
    color: #f4e9d6;
    text-align: center;
    padding: 1em;
  }
  #map-container {
    flex-grow: 1;
    display: flex;
    overflow: hidden;
  }
  #map { 
    flex-grow: 1;
  }
  #image-panel {
    width: 400px;
    padding: 20px;
    background-color: #d2b48c;
    overflow-y: auto;
    max-height: calc(100vh - 100px);
  }
  .image-item {
    margin-bottom: 20px;
    background-color: #f4e9d6;
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }
  .image-item img {
    max-width: 100%;
    border-radius: 5px;
    border: 2px solid #8b4513;
  }
  .image-info {
    font-size: 0.9em;
    margin-top: 10px;
  }
  #instructions {
    background-color: rgba(244, 233, 214, 0.9);
    position: absolute;
    top: 80px;
    left: 50px;
    z-index: 1000;
    padding: 10px;
    border-radius: 5px;
    border: 2px solid #8b4513;
  }
</style>
</head>
<body>
  <header>
    <h1>Earth Historic Image Dataset - Interactive Map</h1>
    <p>Draw a rectangle on the map to fetch historic satellite images for that area (1900-1990)</p>
  </header>

  <div id="map-container">
    <div id="map"></div>
    <div id="instructions">
      <h3>How to use:</h3>
      <ol>
        <li>Click the square icon in the left corner</li>
        <li>Draw a rectangle on the map</li>
        <li>View the fetched historic satellite images on the right panel</li>
      </ol>
    </div>
    <div id="image-panel">
      <h2>Selected Area Historic Images</h2>
      <p>Images acquired by DR. Strawbelly, Public Domain.</p>
      <div id="image-list"></div>
    </div>
  </div>

  <script src="https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"></script>
  <script src="https://unpkg.com/leaflet-draw@1.0.4/dist/leaflet.draw.js"></script>
  <script>
    // Initialize the map
    var map = L.map('map').setView([0, 0], 2);
    L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
      attribution: '© OpenStreetMap contributors'
    }).addTo(map);

    // Add rectangle drawing control
    var drawnItems = new L.FeatureGroup();
    map.addLayer(drawnItems);

    var drawControl = new L.Control.Draw({
      draw: {
        rectangle: true,
        polygon: false,
        circle: false,
        circlemarker: false,
        marker: false,
        polyline: false
      },
      edit: {
        featureGroup: drawnItems
      }
    });
    map.addControl(drawControl);

    // Handle rectangle drawing
    map.on('draw:created', function(e) {
      var layer = e.layer;
      drawnItems.clearLayers();
      drawnItems.addLayer(layer);

      var bounds = layer.getBounds();
      var rectangleSize = calculateRectangleSize(bounds);
      fetchImagesForArea(bounds, rectangleSize);
    });

    function calculateRectangleSize(bounds) {
      var southWest = map.project(bounds.getSouthWest(), map.getZoom());
      var northEast = map.project(bounds.getNorthEast(), map.getZoom());
      return {
        width: Math.abs(northEast.x - southWest.x),
        height: Math.abs(northEast.y - southWest.y)
      };
    }

    function getRandomDate() {
      const start = new Date(1900, 0, 1);
      const end = new Date(1990, 11, 31, 23, 59, 59);
      return new Date(start.getTime() + Math.random() * (end.getTime() - start.getTime()));
    }

    function getRandomSource() {
      const sources = [
        "USGS Historical Archives",
        "NASA Early Earth Observation Program",
        "Royal Geographical Society Collection",
        "National Archives Aerial Photographs",
        "Smithsonian Institution Archives",
        "Library of Strawbelly Map Collection",
        "British Antarctic Survey Historical Imagery",
        "Early NOAA Weather Satellite Data",
        "Vintage Aerial Photography Collections",
        "International Geophysical Year Imagery (1957-1958)",
        "National WBSM Satellite Dataset",
        "Kerbal Space Program Archives",
        "Venice Space Program Library"
      ];
      return sources[Math.floor(Math.random() * sources.length)];
    }

    function determineRegion(lat, lon) {
      const regions = [
        { name: "North_America", lat: [24, 72], lon: [-168, -50] },
        { name: "South_America", lat: [-56, 13], lon: [-81, -34] },
        { name: "Europe", lat: [36, 71], lon: [-11, 40] },
        { name: "Africa", lat: [-35, 37], lon: [-18, 52] },
        { name: "Asia", lat: [-10, 81], lon: [26, 180] },
        { name: "Australia", lat: [-47, -10], lon: [110, 180] },
        { name: "Antarctica", lat: [-90, -60], lon: [-180, 180] }
      ];

      for (let region of regions) {
        if (lat >= region.lat[0] && lat <= region.lat[1] &&
            lon >= region.lon[0] && lon <= region.lon[1]) {
          return region.name;
        }
      }
      return "Unknown";
    }

    function fetchImagesForArea(bounds, size) {
      var imageList = document.getElementById('image-list');
      imageList.innerHTML = '';

      var north = bounds.getNorth().toFixed(4);
      var south = bounds.getSouth().toFixed(4);
      var east = bounds.getEast().toFixed(4);
      var west = bounds.getWest().toFixed(4);

      var centerLat = (bounds.getNorth() + bounds.getSouth()) / 2;
      var centerLon = (bounds.getEast() + bounds.getWest()) / 2;
      var region = determineRegion(centerLat, centerLon);

      for (var i = 1; i <= 5; i++) {
        var date = getRandomDate();
        var source = getRandomSource();
        var imageItem = document.createElement('div');
        imageItem.className = 'image-item';
        
        var img = document.createElement('img');
        img.src = `https://via.placeholder.com/${Math.round(size.width)}x${Math.round(size.height)}.png?text=Historic+Old+Satellite+Image+${i}+${date.getFullYear()}+Region+${region}`;
        img.alt = `Historic Satellite Image ${i} from ${date.toDateString()} in ${region}`;
        img.width = Math.round(size.width);
        img.height = Math.round(size.height);
        
        var info = document.createElement('div');
        info.className = 'image-info';
        info.innerHTML = `
          <p><strong>Date:</strong> ${date.toDateString()}</p>
          <p><strong>Time:</strong> ${date.toLocaleTimeString()}</p>
          <p><strong>Source:</strong> ${source}</p>
          <p><strong>Region:</strong> ${region}</p>
          <p><strong>Coordinates:</strong> N${north}, S${south}, E${east}, W${west}</p>
        `;
        
        imageItem.appendChild(img);
        imageItem.appendChild(info);
        imageList.appendChild(imageItem);
      }
    }
  </script>
</body>
</html>