From 0ff19a888142e14110fb5e381afd86220996f138 Mon Sep 17 00:00:00 2001
From: jayanthbs004 <jayanthbs004@gmail.com>
Date: Tue, 17 Sep 2024 23:27:24 +0530
Subject: [PATCH] Display data visually for traders

---
 src/DataManipulator.ts | 29 ++++++++++++++++++++---------
 src/Graph.tsx          | 27 ++++++++++++++++-----------
 2 files changed, 36 insertions(+), 20 deletions(-)

diff --git a/src/DataManipulator.ts b/src/DataManipulator.ts
index 7f622955cc..cf3697b6d8 100644
--- a/src/DataManipulator.ts
+++ b/src/DataManipulator.ts
@@ -1,20 +1,31 @@
 import { ServerRespond } from './DataStreamer';
 
 export interface Row {
-  stock: string,
-  top_ask_price: number,
+  price_abc: number,
+  price_def: number,
+  ratio: number,
   timestamp: Date,
+  upper_bound: number,
+  lower_bound: number,
+  trigger_alert: number | undefined,
 }
 
 
 export class DataManipulator {
-  static generateRow(serverResponds: ServerRespond[]) {
-    return serverResponds.map((el: any) => {
+    static generateRow(serverResponds: ServerRespond[]): Row {
+      const priceABC = (serverResponds[0].top_ask.price + serverResponds[0].top_bid.price) / 2;
+      const priceDEF = (serverResponds[1].top_ask.price + serverResponds[1].top_bid.price) / 2;
+      const ratio = priceABC / priceDEF;
+      const upper_bound = 1 + 0.05;
+      const lower_bound = 1 - 0.05;
       return {
-        stock: el.stock,
-        top_ask_price: el.top_ask && el.top_ask.price || 0,
-        timestamp: el.timestamp,
+        price_abc: priceABC,
+        price_def: priceDEF,
+        ratio,
+        timestamp: serverResponds[0].timestamp > serverResponds[1].timestamp ? serverResponds[0].timestamp : serverResponds[1].timestamp,
+        upper_bound,
+        lower_bound,
+        trigger_alert: (ratio > upper_bound || ratio < lower_bound) ? ratio : undefined,
       };
-    })
+    }
   }
-}
diff --git a/src/Graph.tsx b/src/Graph.tsx
index 277797d933..6378da0239 100644
--- a/src/Graph.tsx
+++ b/src/Graph.tsx
@@ -1,5 +1,5 @@
 import React, { Component } from 'react';
-import { Table } from '@finos/perspective';
+import { Table, TableData } from '@finos/perspective';
 import { ServerRespond } from './DataStreamer';
 import { DataManipulator } from './DataManipulator';
 import './Graph.css';
@@ -23,10 +23,13 @@ class Graph extends Component<IProps, {}> {
     const elem = document.getElementsByTagName('perspective-viewer')[0] as unknown as PerspectiveViewerElement;
 
     const schema = {
-      stock: 'string',
-      top_ask_price: 'float',
-      top_bid_price: 'float',
+      price_abc: 'float',
+      price_def: 'float',
+      ratio: 'float',
       timestamp: 'date',
+      upper_bound: 'float',
+      lower_bound: 'float',
+      trigger_alert:'float',
     };
 
     if (window.perspective && window.perspective.worker()) {
@@ -40,19 +43,21 @@ class Graph extends Component<IProps, {}> {
       elem.setAttribute('row-pivots', '["timestamp"]');
       elem.setAttribute('columns', '["top_ask_price"]');
       elem.setAttribute('aggregates', JSON.stringify({
-        stock: 'distinctcount',
-        top_ask_price: 'avg',
-        top_bid_price: 'avg',
-        timestamp: 'distinct count',
+      price_abc: 'avg',
+      price_def: 'avg',
+      ratio: 'avg',
+      timestamp: 'distinct count',
+      upper_bound: 'avg',
+      lower_bound: 'avg',
+      trigger_alert:'avg',
       }));
     }
   }
 
   componentDidUpdate() {
     if (this.table) {
-      this.table.update(
-        DataManipulator.generateRow(this.props.data),
-      );
+      this.table.update([DataManipulator.generateRow(this.props.data),
+    ] as unknown as TableData);
     }
   }
 }