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Store account membership, portfolio, operations, forecasts and market sources in SQLite. Coalesce scoped refreshes, fence connection revisions, preserve complete financial snapshots and stabilize operation period state. BREAKING CHANGE: investment reads return data/meta resource envelopes and locally persisted snapshots; consumers must use the matching OpenAPI contract and explicit synchronization endpoints.
112 lines
2.8 KiB
TypeScript
112 lines
2.8 KiB
TypeScript
import { CandleService } from '../../application/candle.service';
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import {
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CatalogEnrichmentService,
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type CatalogPayload,
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} from '../../application/catalog-enrichment.service';
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import { Injectable } from '@nestjs/common';
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import {
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decimalFromString,
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divide,
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formatDecimal,
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multiply,
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subtract,
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} from '../../../../../common/decimal';
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import { decimal } from '../../../../../integrations/tbank/decimal';
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import { timestamp } from '../../application/instrument-market';
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import {
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StockCandlesQueryDto,
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StockQuoteDto,
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StockQuoteResourceDto,
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} from '../presentation/stock.dto';
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const CHANGE_PERCENT_DECIMAL_PLACES = 6;
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@Injectable()
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export class StockMarketService {
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constructor(
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private readonly history: CandleService,
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private readonly sources: CatalogEnrichmentService,
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) {}
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async quote(
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userId: string,
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uid: string,
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observe = false,
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): Promise<StockQuoteResourceDto> {
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const result = await this.sources.section(
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userId,
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'share',
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uid,
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'quote',
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observe,
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);
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return {
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data: result.values.instrument
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? stockQuote(result.values, result.unavailable, result.observedAt)
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: null,
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meta: result.meta,
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};
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}
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candles(
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userId: string,
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uid: string,
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period: StockCandlesQueryDto['period'] = 'month',
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observe = false,
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) {
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return this.history.read(
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userId,
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{ uid, instrumentType: 'share', period },
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observe,
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);
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}
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}
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export function stockQuote(
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values: CatalogPayload,
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unavailable: string[],
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observedAt: string,
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): StockQuoteDto {
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const { price: last, candle: previous, tradingStatus = null } = values;
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const share = values.instrument;
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const priceAt = timestamp(last?.time);
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const currency = share?.currency?.toUpperCase();
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const price =
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last?.price && currency
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? { currency, value: formatDecimal(decimal(last.price)) }
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: null;
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const previousPrice =
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previous?.close && currency
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? { currency, value: formatDecimal(decimal(previous.close)) }
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: null;
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const difference =
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price && previousPrice
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? subtract(
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decimalFromString(price.value),
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decimalFromString(previousPrice.value),
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)
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: null;
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return {
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price,
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priceAt,
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tradingStatus,
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previousCloseDate: timestamp(previous?.time)?.slice(0, 10) ?? null,
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previousClose: previousPrice,
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change:
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difference && currency
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? { currency, value: formatDecimal(difference) }
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: null,
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changePercent:
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difference &&
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previousPrice &&
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decimalFromString(previousPrice.value).value > 0n
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? formatDecimal(
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divide(
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multiply(difference, decimalFromString('100')),
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decimalFromString(previousPrice.value),
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CHANGE_PERCENT_DECIMAL_PLACES,
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),
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)
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: null,
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unavailable,
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observedAt,
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};
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}
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