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// JS module imports
import { useMemo, useState } from "react";
import Graph from 'vis-react';
// CSS imports
import '../css/Canvas.css';
import EdgeInfo from "./EdgeInfo";
/**
* This function renders and mantains the canvas.
* @param {Object} props The props for the canvas.
* @returns {import("react").HtmlHTMLAttributes} The canvas to be retured.
*/
function Visualization(props) {
/*let stocks = {};
let hideEdgeInfo = true;
const setStocks = (newStocks) => {
stocks = newStocks;
}
const setHideEdgeInfo = (val) => {
hideEdgeInfo = val;
}*/
const [key, setKey] = useState(0);
const [graphState, setGraphState] = useState({
nodes: [],
edges: []
});
const options = {
autoResize: true,
edges: {
color: "#ffffff"
}
};
const events = {
selectNode: event => {
props.setSelectedId(event.nodes[0])
}
}
/*const getEdgeInfo = (fromID, toID) => {
fetch("http://localhost:4567/edge-data", {
method: "POST",
body: JSON.stringify({
followerID: fromID,
leaderID: toID,
}),
headers: {
"Content-Type": "application/json",
},
credentials: "same-origin"
})
.then(res => res.json())
.then(data => {
console.log(data);
setStocks(data);
setHideEdgeInfo(false);
})
.catch(err => console.log(err));
}*/
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',
},
/*chosen: {
edge: () => getEdgeInfo(follower.id, hub.id)
}*/
});
});
});
return edges;
}
/*
* <EdgeInfo
stockList={stocks}
setHideInfo={setHideEdgeInfo}
hidden={hideEdgeInfo}>
</EdgeInfo>*/
// Hooks to update graph state when data changes
useMemo(() => {
setKey(key => key + 1);
setGraphState({nodes: getNodes(), edges: getEdges()})
}, [JSON.stringify(props.data)]);
return (
<div className="Map-canvas">
<Graph
key={key}
graph={graphState}
options={options}
events={events}>
</Graph>
</div>
);
}
export default Visualization;
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