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// JS module imports
import { useCallback, useEffect, useMemo, useRef, useState } from "react";
import uuid from 'react-uuid';
import Graph from 'vis-react';
// CSS imports
import '../css/Canvas.css';
/**
* This function renders and mantains thhe canvas.
* @param {Object} props The props for the canvas.
* @returns {import("react").HtmlHTMLAttributes} The canvas to be retured.
*/
function Visualization(props) {
const [graphState, setGraphState] = useState({
nodes: [],
edges: []
});
const options = {
autoResize: true,
edges: {
color: "#ffffff"
}
};
const events = {
selectNode: event => {
console.log(event);
//props.setSelectedId(event.nodes[0]);
}
}
const getNodes = () => {
let nodes = [];
const maxScore = props.data[0].suspicionScore;
const interval = maxScore / 4;
props.data.forEach(hub => {
if (hub.followers) {
let colorVal = '#f6f7d4';
const score = hub.suspicionScore;
if(score > (maxScore - interval)){
colorVal = '#d92027'
}
if(score <= (maxScore - interval) && score > (maxScore - interval*2)){
colorVal = '#f37121'
}
if(score <= (maxScore - interval*2) && score > (maxScore - interval*3)){
colorVal = '#fdca40'
}
nodes.push({
id: hub.id,
autoResize: true,
label: hub.name,
labelHighlightBold: true,
shape: "dot",
value: hub.suspicionScore*1000,
color: {
background: colorVal,
border: '#2b2e4a',
highlight:{
background: '#29bb89',
border: '#fdca40'
}
},
font: {
color: '#9fd8df',
size: 20,
}
});
}
});
return nodes;
}
const getEdges = () => {
let edges = []
props.data.forEach(hub => {
hub.followers.forEach(follower => {
edges.push({
from: follower.id,
to: hub.id,
dashes: false,
color:{
opacity: 0.7,
highlight:'#fdca40',
}
});
});
});
return edges;
}
// Hooks to update graph state when data changes
useMemo(() => setGraphState({nodes: getNodes(), edges: getEdges()}), [props.data]);
return (
<div className="Map-canvas">
<Graph
key={uuid()}
graph={graphState}
options={options}
events={events}>
</Graph>
</div>
);
}
export default Visualization;
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