var grod = ee.FeatureCollection("projects/sat-io/open-datasets/GROD/GROD_V11");

print(grod.first())
print(grod.aggregate_histogram('type'))

// Define color palette for each property type
var dict = ee.Dictionary({
  'Channel dam': '#d73027', // Red
  'Dam': '#fc8d59', // Orange
  'Lock': '#fee08b', // Yellow
  'Low head dam': '#d9ef8b', // Light Green
  'Partial dam 1': '#91cf60', // Dark Green
  'Partial dam 2': '#1a9850', // Dark Teal
});

// Function to style features based on property type
var styleFeatures = function(feature) {
  var color = dict.get(feature.get('type')); // Use default color if type not found
  return feature.set('styleProperty', ee.Dictionary({'pointSize': 2, 'color': color})); // Set style directly
};

// Apply styling to the feature collection
var styledFeatures = grod.map(styleFeatures);

// Function to add a layer for each type
function addLayer(type) {
  print(type);
  Map.addLayer(styledFeatures.filter(ee.Filter.eq('type', type)).style({styleProperty: 'styleProperty'}), {}, type);
}

// Apply `addLayer` to each record in `palette.keys()`
dict.keys().getInfo().map(addLayer);

var dict = ee.Dictionary({
  'Channel dam': '#d73027', // Red
  'Dam': '#fc8d59', // Orange
  'Lock': '#fee08b', // Yellow
  'Low head dam': '#d9ef8b', // Light Green
  'Partial dam 1': '#91cf60', // Dark Green
  'Partial dam 2': '#1a9850', // Dark Teal
});

var dict = {
  "names": [
  'Channel dam',
  'Dam',
  'Lock',
  'Low head dam',
  'Partial dam 1',
  'Partial dam 2'
  ],
  "colors": [
  '#d73027', // Red
  '#fc8d59', // Orange
  '#fee08b', // Yellow
  '#d9ef8b', // Light Green
  '#91cf60', // Dark Green
  '#1a9850', // Dark Teal
  ]};

// Create a panel to hold the legend widget
var legend = ui.Panel({
  style: {
    position: 'bottom-left',
    padding: '8px 15px'
  }
});

// Function to generate the legend
function addCategoricalLegend(panel, dict, title) {

  // Create and add the legend title.
  var legendTitle = ui.Label({
    value: title,
    style: {
      fontWeight: 'bold',
      fontSize: '18px',
      margin: '0 0 4px 0',
      padding: '0'
    }
  });
  panel.add(legendTitle);

  var loading = ui.Label('Loading legend...', {margin: '2px 0 4px 0'});
  panel.add(loading);

  // Creates and styles 1 row of the legend.
  var makeRow = function(color, name) {
    // Create the label that is actually the colored box.
    var colorBox = ui.Label({
      style: {
        backgroundColor: color,
        // Use padding to give the box height and width.
        padding: '8px',
        margin: '0 0 4px 0'
      }
    });

    // Create the label filled with the description text.
    var description = ui.Label({
      value: name,
      style: {margin: '0 0 4px 6px'}
    });

    return ui.Panel({
      widgets: [colorBox, description],
      layout: ui.Panel.Layout.Flow('horizontal')
    });
  };

  // Get the list of palette colors and class names from the image.
  var palette = dict['colors'];
  var names = dict['names'];
  loading.style().set('shown', false);

  for (var i = 0; i < names.length; i++) {
    panel.add(makeRow(palette[i], names[i]));
  }

  Map.add(panel);

}

// Add the legend to the map
addCategoricalLegend(legend, dict, 'Global River Obstruction Database v1.1');