frontend/src/lib/components/VaR.svelte
2024-09-23 00:03:09 +02:00

266 lines
8.8 KiB
Svelte

<script lang ='ts'>
import { varComponent, displayCompanyName, stockTicker, etfTicker, cryptoTicker, assetType, getCache, setCache} from '$lib/store';
import InfoModal from '$lib/components/InfoModal.svelte';
import { Chart } from 'svelte-echarts'
import { init, use } from 'echarts/core'
import { LineChart } from 'echarts/charts'
import { GridComponent, TooltipComponent } from 'echarts/components'
import { CanvasRenderer } from 'echarts/renderers'
export let data;
use([LineChart, GridComponent, TooltipComponent, CanvasRenderer])
let isLoaded = false;
let rating;
let outlook;
let valueAtRisk;
let varDict = {}
let optionsData;
let monthlyVarAvg;
function getPlotOptions() {
let dates = [];
let varList = [];
// Iterate over the data and extract required information
varDict?.history?.forEach(item => {
dates?.push(item?.date);
varList?.push(item?.var);
});
const sum = varList.reduce((accumulator, currentValue) => {
return accumulator + currentValue;
}, 0);
monthlyVarAvg = (sum / varList?.length)?.toFixed(2);
const option = {
silent: true,
tooltip: {
trigger: 'axis',
hideDelay: 100, // Set the delay in milliseconds
},
animation: false,
grid: {
left: '0%',
right: '2%',
bottom: '2%',
top: '5%',
containLabel: true
},
xAxis:
{
type: 'category',
boundaryGap: false,
data: dates,
axisLabel: {
color: '#fff',
formatter: function (value) {
// Format the date
const date = new Date(value + '-01'); // Append a day to make it a full date
const options = { year: 'numeric', month: 'short' };
return new Intl.DateTimeFormat('en-US', options).format(date);
}
}
},
yAxis: [
{
type: 'value',
splitLine: {
show: false, // Disable x-axis grid lines
},
axisLabel: {
color: '#fff',
formatter: function (value, index) {
if (index % 2 === 0) {
return value?.toFixed(0)+'%'
} else {
return ''; // Hide this tick
}
}
}
}
],
series: [
{
name: 'VaR',
data: varList,
type: 'line',
areaStyle: {opacity: 0.8},
itemStyle: {
color: '#E11D48' // Change bar color to white
},
showSymbol: false,
},
]
};
return option;
}
const getVaR = async (ticker) => {
// Get cached data for the specific tickerID
const cachedData = getCache(ticker, 'getVaR');
if (cachedData) {
varDict = cachedData;
} else {
const postData = {'ticker': ticker, 'path': 'value-at-risk'};
// make the POST request to the endpoint
const response = await fetch('/api/ticker-data', {
method: 'POST',
headers: {
"Content-Type": "application/json"
},
body: JSON.stringify(postData)
});
varDict = await response.json();
// Cache the data for this specific tickerID with a specific name 'getVaR'
setCache(ticker, varDict, 'getVaR');
}
if(Object?.keys(varDict)?.length !== 0) {
$varComponent = true;
}
else {
$varComponent = false;
}
};
$: {
if($assetType === 'stock' ? $stockTicker : $assetType === 'etf' ? $etfTicker : $cryptoTicker && typeof window !== 'undefined') {
isLoaded = false;
const ticker = $assetType === 'stock' ? $stockTicker : $assetType === 'etf' ? $etfTicker : $cryptoTicker;
const asyncFunctions = [
getVaR(ticker)
];
Promise.all(asyncFunctions)
.then((results) => {
rating = varDict?.rating;
outlook = varDict?.outlook;
valueAtRisk = varDict?.history?.slice(-1)?.at(0)?.var;
optionsData = getPlotOptions();
})
.catch((error) => {
console.error('An error occurred:', error);
});
isLoaded = true;
}
}
</script>
<section class="overflow-hidden text-white h-full pb-10 sm:pb-0">
<main class="overflow-hidden ">
<div class="flex flex-row items-center">
<label for="varInfo" class="mr-1 cursor-pointer flex flex-row items-center text-white text-xl sm:text-3xl font-bold">
Value at Risk
</label>
<InfoModal
title={"Value at Risk"}
content={`Value at Risk (VaR) quantifies the potential loss of investment or capital within a specified time frame (N days) under typical market conditions, providing an estimate of potential losses with a given probability for ${$displayCompanyName}.`}
id={"varInfo"}
/>
</div>
{#if Object?.keys(varDict)?.length !== 0}
<div class="pb-4 w-full mt-5">
<div class="w-auto p-4 sm:p-6 bg-[#09090B] sm:bg-[#09090B] rounded-lg relative">
<div class="flex flex-row items-center justify-between ">
<div class="relative size-[60px] sm:size-[90px] ml-auto">
<svg class="size-full w-[60px] h-[60px] sm:w-[90px] sm:h-[90px]" viewBox="0 0 36 36" xmlns="http://www.w3.org/2000/svg">
<!-- Background Circle -->
<circle cx="18" cy="18" r="16" fill="none" class="stroke-current text-[#303030]" stroke-width="4"></circle>
<!-- Progress Circle inside a group with rotation -->
<g class="origin-center -rotate-90 transform">
<circle cx="18" cy="18" r="16" fill="none" class="stroke-current {rating > 5 ? 'text-[#37C97D]' : rating < 5 ? 'text-[#FF2F1F]' : 'text-white'} " stroke-width="4" stroke-dasharray="100" stroke-dashoffset={100-rating*10}></circle>
</g>
</svg>
<!-- Percentage Text -->
<div class="absolute top-1/2 start-1/2 transform -translate-y-1/2 -translate-x-1/2">
<span class="text-center text-white text-xl sm:text-2xl font-semibold">
{rating}
</span>
</div>
</div>
<div class="flex flex-col items-start ml-4 sm:ml-10 mr-auto sm:-top-3 sm:relative">
<h3 class="hidden sm:block text-gray-300 text-[1rem] sm:text-lg font-semibold">
<span class="{outlook === 'Minimum Risk' ? 'text-[#10BC09]' : outlook==='Risky' ? 'text-red-500' : 'text-white'}">{outlook}</span> outlook:
</h3>
<span class="text-gray-200 text-sm sm:text-lg mt-1">
Under typical market conditions, there is a <span class="font-semibold">95%</span> probability that <span class="text-blue-400">${$assetType === 'stock' ? $stockTicker : $assetType === 'etf' ? $etfTicker : $cryptoTicker}</span> will incur a maximum loss of <span class="text-[#FF2F1F] font-semibold">{valueAtRisk}%</span> in the upcoming week.
</span>
</div>
</div>
</div>
</div>
<h2 class="text-white text-xl sm:text-2xl font-semibold mt-5">
Historical VaR
</h2>
<div class="text-white text-[1rem] mt-3">
Based on historical price data, the company experienced an average monthly Value at Risk (VaR) of {monthlyVarAvg}%.
</div>
<div class="app w-full h-[300px] mt-5">
<Chart {init} options={optionsData} class="chart" />
</div>
{:else}
<h2 class="mt-10 mb-5 flex justify-center items-center text-2xl font-bold text-slate-700 m-auto">
No data available
</h2>
{/if}
</main>
</section>
<style>
.app {
height: 300px;
max-width: 100%; /* Ensure chart width doesn't exceed the container */
}
@media (max-width: 640px) {
.app {
height: 210px;
}
}
.chart {
width: 100%;
}
</style>