79 lines
2.9 KiB
TypeScript
79 lines
2.9 KiB
TypeScript
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import { Injectable } from '@nestjs/common';
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import { Portfolio } from '../models/portfolio';
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import { Rule } from '../models/rule';
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import { CurrencyClusterRiskBaseCurrencyCurrentInvestment } from '../models/rules/currency-cluster-risk/base-currency-current-investment';
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import { CurrencyClusterRiskBaseCurrencyInitialInvestment } from '../models/rules/currency-cluster-risk/base-currency-initial-investment';
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import { CurrencyClusterRiskCurrentInvestment } from '../models/rules/currency-cluster-risk/current-investment';
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import { CurrencyClusterRiskInitialInvestment } from '../models/rules/currency-cluster-risk/initial-investment';
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import { FeeRatioInitialInvestment } from '../models/rules/fees/fee-ratio-initial-investment';
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import { PlatformClusterRiskCurrentInvestment } from '../models/rules/platform-cluster-risk/current-investment';
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import { PlatformClusterRiskInitialInvestment } from '../models/rules/platform-cluster-risk/initial-investment';
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import { PlatformClusterRiskSinglePlatform } from '../models/rules/platform-cluster-risk/single-platform';
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@Injectable()
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export class RulesService {
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public constructor() {}
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public async evaluate(
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aPortfolio: Portfolio,
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aRules: Rule[],
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aUserSettings: { baseCurrency: string }
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) {
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const defaultSettings = this.getDefaultRuleSettings(aUserSettings);
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const details = await aPortfolio.getDetails();
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return aRules
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.filter((rule) => {
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return defaultSettings[rule.constructor.name]?.isActive;
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})
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.map((rule) => {
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const evaluationResult = rule.evaluate(
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details,
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aPortfolio.getFees(),
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defaultSettings
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);
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return { ...evaluationResult, name: rule.getName() };
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});
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}
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private getDefaultRuleSettings(aUserSettings: { baseCurrency: string }) {
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return {
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[CurrencyClusterRiskBaseCurrencyInitialInvestment.name]: {
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baseCurrency: aUserSettings.baseCurrency,
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isActive: true
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},
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[CurrencyClusterRiskBaseCurrencyCurrentInvestment.name]: {
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baseCurrency: aUserSettings.baseCurrency,
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isActive: true
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},
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[CurrencyClusterRiskCurrentInvestment.name]: {
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baseCurrency: aUserSettings.baseCurrency,
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isActive: true,
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threshold: 0.5
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},
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[CurrencyClusterRiskInitialInvestment.name]: {
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baseCurrency: aUserSettings.baseCurrency,
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isActive: true,
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threshold: 0.5
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},
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[FeeRatioInitialInvestment.name]: {
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baseCurrency: aUserSettings.baseCurrency,
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isActive: true,
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threshold: 0.01
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},
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[PlatformClusterRiskCurrentInvestment.name]: {
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baseCurrency: aUserSettings.baseCurrency,
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isActive: true,
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threshold: 0.5
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},
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[PlatformClusterRiskInitialInvestment.name]: {
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baseCurrency: aUserSettings.baseCurrency,
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isActive: true,
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threshold: 0.5
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},
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[PlatformClusterRiskSinglePlatform.name]: { isActive: true }
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};
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}
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}
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