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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Soil Analysis Dashboard</title>
  <!-- Tailwind CSS -->
  <script src="https://cdn.tailwindcss.com"></script>
  <!-- Animate.css for UI animations -->
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/4.1.1/animate.min.css"/>
  <!-- Leaflet CSS -->
  <link rel="stylesheet" href="https://unpkg.com/leaflet/dist/leaflet.css" />
  <!-- Marked.js for Markdown rendering -->
  <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
  <style>
    /* Custom styles for enhanced UI */
    body {
      background-color: #f0fff4;
    }
    #map {
      height: 400px;
    }
    .card {
      background-color: #ffffff;
      border: 2px solid #4ade80;
      border-radius: 0.75rem;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    .btn-custom {
      background-color: #22c55e;
      border: none;
      color: white;
    }
    .btn-custom:hover {
      background-color: #16a34a;
    }
    .table-custom th, .table-custom td {
      text-align: center;
      padding: 0.75rem;
    }
  </style>
</head>
<body class="min-h-screen">
  <!-- Navigation Bar -->
  <div class="container mx-auto my-8 px-4">
    <header class="mb-8">
      <h1 class="text-5xl font-extrabold text-center text-green-800 animate_animated animate_fadeInDown">
        Soil Analysis Dashboard
      </h1>
    </header>

    <!-- Location Selection Card -->
    <div class="card p-6 mb-8 animate_animated animate_fadeIn">
      <h2 class="text-3xl font-bold text-green-700 mb-4">Select Location</h2>
      <div class="mb-6">
        <div class="flex">
          <input type="text" id="location-search" class="flex-grow p-3 border border-green-300 rounded-l-md focus:outline-none" placeholder="Search location (e.g., New Delhi)">
          <button class="px-4 py-3 bg-green-500 hover:bg-green-600 text-white rounded-r-md" type="button" id="search-btn">Search</button>
        </div>
      </div>
      <div class="flex flex-col md:flex-row gap-6">
        <!-- Map Section -->
        <div class="md:w-2/3">
          <div id="map" class="rounded-lg"></div>
        </div>
        <!-- Coordinates Input -->
        <div class="md:w-1/3">
          <form id="location-form" class="space-y-4">
            <div>
              <label for="lat" class="block text-lg font-medium text-green-700">Latitude:</label>
              <input type="text" id="lat" name="lat" class="mt-1 block w-full p-2 border border-green-300 rounded-md" placeholder="Enter latitude">
            </div>
            <div>
              <label for="lon" class="block text-lg font-medium text-green-700">Longitude:</label>
              <input type="text" id="lon" name="lon" class="mt-1 block w-full p-2 border border-green-300 rounded-md" placeholder="Enter longitude">
            </div>
            <div class="flex flex-wrap gap-3">
              <button type="button" id="current-location" class="px-4 py-2 bg-gray-500 hover:bg-gray-600 text-white rounded-md">Use Current Location</button>
              <button type="button" id="fetch-report" class="px-4 py-2 bg-green-500 hover:bg-green-600 text-white rounded-md">Fetch Soil Report</button>
            </div>
          </form>
        </div>
      </div>
    </div>

    <!-- Soil Report Section -->
    <div id="soil-report-section" class="mb-8 hidden animate_animated animate_fadeInUp">
      <h2 class="text-4xl font-bold text-green-800 mb-6">Soil Report</h2>
      <!-- Soil Classification -->
      <div id="classification-report" class="mb-8"></div>
      <!-- Soil Properties -->
      <div id="properties-report" class="mb-8"></div>
    </div>

    <!-- Gemini Analysis Section -->
    <div id="analysis-section" class="mb-8 hidden animate_animated animate_fadeInUp">
      <h2 class="text-4xl font-bold text-green-800 mb-6">Soil Analysis & Recommendations</h2>
      <div class="mb-4">
        <label for="language" class="form-label">Response Language</label>
        <select class="form-control" id="language" name="language" required>
            <option value="English">English</option>
            <option value="Hindi">Hindi</option>
            <option value="Bengali">Bengali</option>
            <option value="Telugu">Telugu</option>
            <option value="Marathi">Marathi</option>
            <option value="Tamil">Tamil</option>
            <option value="Gujarati">Gujarati</option>
            <option value="Urdu">Urdu</option>
            <option value="Kannada">Kannada</option>
            <option value="Odia">Odia</option>
            <option value="Malayalam">Malayalam</option>
        </select>
      </div>
      <div class="mb-4">
        <button type="button" id="analyze-soil" class="px-6 py-3 btn-custom rounded-md text-lg">Analyze Soil</button>
      </div>
      <!-- The analysis-result div is rendered using Markdown -->
      <div id="analysis-result" class="prose max-w-none"></div>
    </div>
  </div>

  <!-- jQuery -->
  <script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
  <!-- Leaflet JS -->
  <script src="https://unpkg.com/leaflet/dist/leaflet.js"></script>
  <script>
    // Initialize Leaflet map
    var map = L.map('map').setView([29.25, 76.45], 8);
    L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
      attribution: '© OpenStreetMap contributors'
    }).addTo(map);
    var marker;
    // Update latitude and longitude inputs when clicking on the map
    map.on('click', function(e) {
      var lat = e.latlng.lat.toFixed(6);
      var lon = e.latlng.lng.toFixed(6);
      $('#lat').val(lat);
      $('#lon').val(lon);
      if (marker) {
        marker.setLatLng(e.latlng);
      } else {
        marker = L.marker(e.latlng).addTo(map);
      }
    });
    // Use current geolocation
    $('#current-location').on('click', function() {
      if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(function(position) {
          var lat = position.coords.latitude.toFixed(6);
          var lon = position.coords.longitude.toFixed(6);
          $('#lat').val(lat);
          $('#lon').val(lon);
          var latlng = L.latLng(lat, lon);
          map.setView(latlng, 10);
          if (marker) {
            marker.setLatLng(latlng);
          } else {
            marker = L.marker(latlng).addTo(map);
          }
        });
      } else {
        alert("Geolocation is not supported by this browser.");
      }
    });
    // Location search using OpenStreetMap Nominatim API
    $('#search-btn').on('click', function() {
      var query = $('#location-search').val();
      if (!query) {
        alert("Please enter a location to search.");
        return;
      }
      $.ajax({
        url: "https://nominatim.openstreetmap.org/search",
        data: { q: query, format: "json" },
        success: function(data) {
          if (data && data.length > 0) {
            var lat = parseFloat(data[0].lat).toFixed(6);
            var lon = parseFloat(data[0].lon).toFixed(6);
            $('#lat').val(lat);
            $('#lon').val(lon);
            var latlng = L.latLng(lat, lon);
            map.setView(latlng, 10);
            if (marker) {
              marker.setLatLng(latlng);
            } else {
              marker = L.marker(latlng).addTo(map);
            }
          } else {
            alert("Location not found.");
          }
        },
        error: function() {
          alert("Error fetching location data.");
        }
      });
    });
    // Global variables to store soil report data for later analysis
    window.soilReportData = null;
    window.currentLat = null;
    window.currentLon = null;
    // Fetch soil report from the backend
    $('#fetch-report').on('click', function() {
      var lat = $('#lat').val();
      var lon = $('#lon').val();
      if (!lat || !lon) {
        alert("Please provide valid latitude and longitude.");
        return;
      }
      $.ajax({
        url: '/get_soil_report',
        method: 'POST',
        contentType: 'application/json',
        data: JSON.stringify({ lat: lat, lon: lon }),
        success: function(response) {
          // Build Soil Classification HTML
          var classificationHtml = '<h3 class="text-2xl font-bold text-green-700 mb-4">Soil Classification</h3>';
          classificationHtml += '<p class="text-xl mb-2"><span class="font-semibold">Type:</span> ' + response.classification.soil_type + '</p>';
          if (response.classification.soil_probabilities.length > 0) {
            classificationHtml += '<table class="min-w-full table-custom border-collapse mb-4"><thead class="bg-green-100"><tr><th class="border border-green-300">Soil Type</th><th class="border border-green-300">Probability (%)</th></tr></thead><tbody>';
            response.classification.soil_probabilities.forEach(function(item) {
              classificationHtml += '<tr><td class="border border-green-300 p-2">' + item[0] + '</td><td class="border border-green-300 p-2">' + item[1] + '</td></tr>';
            });
            classificationHtml += '</tbody></table>';
          }
          $('#classification-report').html(classificationHtml);
          // Build Soil Properties HTML with a Description column
          var propertiesHtml = '<h3 class="text-2xl font-bold text-green-700 mb-4">Soil Properties</h3>';
          propertiesHtml += '<table class="min-w-full table-custom border-collapse mb-4"><thead class="bg-green-100"><tr><th class="border border-green-300">Parameter</th><th class="border border-green-300">Value</th><th class="border border-green-300">Unit</th><th class="border border-green-300">Description</th></tr></thead><tbody>';
          response.properties.forEach(function(prop) {
            propertiesHtml += '<tr><td class="border border-green-300 p-2">' + prop.parameter + '</td><td class="border border-green-300 p-2">' + prop.value + '</td><td class="border border-green-300 p-2">' + prop.unit + '</td><td class="border border-green-300 p-2">' + prop.description + '</td></tr>';
          });
          propertiesHtml += '</tbody></table>';
          $('#properties-report').html(propertiesHtml);
          // Store report data for later analysis and reveal the report section
          window.soilReportData = response;
          window.currentLat = lat;
          window.currentLon = lon;
          $('#soil-report-section').removeClass('hidden');
          $('#analysis-section').removeClass('hidden');
        },
        error: function() {
          alert("Error fetching soil report. Please try again.");
        }
      });
    });
    // Analyze soil and render Gemini analysis response in Markdown
    $('#analyze-soil').on('click', function() {
      if (!window.soilReportData) {
        alert("Please fetch the soil report first.");
        return;
      }
      var requestData = {
        soil_report: window.soilReportData,
        lat: window.currentLat,
        lon: window.currentLon,
        language: $('#language').val()  // Include selected language in the request
      };
      $.ajax({
        url: '/analyze_soil',
        method: 'POST',
        contentType: 'application/json',
        data: JSON.stringify(requestData),
        success: function(response) {
          var analysisText = response.analysis;
          // Ensure the response is treated as Markdown
          var renderedHTML = marked.parse(analysisText);
          $('#analysis-result').html(renderedHTML);
        },
        error: function() {
          alert("Error analyzing soil data. Please try again.");
        }
      });
    });
  </script>
</body>
</html>