<div id="sigma-container"></div>
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />

<style>
  #sigma-container {
    width: 100%;
    height: 100%;
  }
</style>

<script>
  import bindLeafletLayer from "@sigma/layer-leaflet";
  import Graph from "graphology";
  import { nodeExtent } from "graphology-metrics/graph";
  import type { Attributes, SerializedGraph } from "graphology-types";
  import Sigma from "sigma";
  import { DEFAULT_STYLES } from "sigma/types";

  const container = document.getElementById("sigma-container") as HTMLElement;

  const res = await fetch("/data/airports.json");
  const data = await res.json();
  const graph = Graph.from(data as SerializedGraph);
  graph.updateEachNodeAttributes((node, attributes) => ({
    ...attributes,
    label: attributes.fullName,
    degree: graph.degree(node),
    x: 0,
    y: 0,
  }));

  const [minDegree, maxDegree] = nodeExtent(graph, "degree");
  const renderer = new Sigma(graph, container, {
    settings: {
      labelRenderedSizeThreshold: 20,
      minEdgeThickness: 1,
    },
    styles: {
      edges: [DEFAULT_STYLES.edges, { color: "#ffaeaf", size: 0.0001 }],
      nodes: [
        DEFAULT_STYLES.nodes,
        {
          color: "#e22352",
          size: {
            attribute: "degree",
            min: 0.001,
            max: 0.005,
            minValue: minDegree,
            maxValue: maxDegree,
          },
        },
      ],
    },
  });

  bindLeafletLayer(renderer, {
    tileLayer: {
      urlTemplate: "https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}{r}.png",
      attribution:
        '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors &copy; <a href="https://carto.com/attributions">CARTO</a>',
    },
    getNodeLatLng: (attrs: Attributes) => ({ lat: attrs.latitude, lng: attrs.longitude }),
  });
</script>