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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.
90 lines
2.8 KiB
TypeScript
90 lines
2.8 KiB
TypeScript
import { Injectable } from '@nestjs/common';
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import { investmentResourceMeta } from '../../investment-resource.mapper';
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import type { InvestmentResourceMetaDto } from '../../investment-resource.dto';
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import {
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ForecastRepository,
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type ForecastSourceVersion,
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} from '../infrastructure/forecast.repository';
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@Injectable()
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export class ForecastService {
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constructor(private readonly repository: ForecastRepository) {}
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async result<T extends object>(input: {
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userId: string;
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revision: string;
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membershipRevision: number;
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scopeKey: string;
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portfolio: InvestmentResourceMetaDto;
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sources: {
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version: ForecastSourceVersion | null;
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meta: InvestmentResourceMetaDto;
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}[];
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candidate?: T;
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}) {
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const dependencies = [
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input.portfolio,
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...input.sources.map((source) => source.meta),
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];
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const stored = await this.repository.resolve({
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...input,
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portfolioProjection: input.portfolio.dataRevision,
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portfolios: (input.portfolio.dependencies ?? []).flatMap((dependency) =>
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dependency.resourceKey.startsWith('portfolio/')
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? [
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{
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accountId: decodeURIComponent(
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dependency.resourceKey.slice('portfolio/'.length),
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),
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dataRevision: Number(
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(dependency as InvestmentResourceMetaDto).dataRevision,
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),
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},
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]
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: [],
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),
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sources: input.sources.flatMap((source) =>
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source.version ? [source.version] : [],
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),
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timestamps: dependencies.flatMap((dependency) =>
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dependency.lastSuccessfulAt
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? [
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{
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resourceKey: dependency.resourceKey,
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at: dependency.lastSuccessfulAt,
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},
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]
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: [],
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),
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});
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const timestamps = stored?.sourceTimestamps as
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{ resourceKey: string; at: string }[] | undefined;
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const first = timestamps?.map((entry) => entry.at).sort()[0];
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const work =
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dependencies
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.map((dependency) => dependency.sync)
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.find((sync) => sync.state === 'running') ??
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dependencies
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.map((dependency) => dependency.sync)
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.find((sync) => sync.state === 'failed');
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return {
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data: stored ? (stored.payload as T) : null,
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meta: investmentResourceMeta({
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resourceKey: input.scopeKey,
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dataRevision: String(stored?.dataRevision ?? 0),
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availability: stored
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? 'complete'
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: dependencies.some(
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(dependency) => dependency.availability !== 'missing',
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)
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? 'partial'
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: 'missing',
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fetchedAt: first ? new Date(first) : null,
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freshForMs: Number.POSITIVE_INFINITY,
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work: work?.id ? { ...work, id: work.id } : null,
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dependencies,
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}),
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};
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}
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}
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