feat!: persist T-Bank data and synchronize reads

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.
2026-09-26 21:29:15 +03:00
parent 0862d56c4e
commit d6e6c4ace5
116 changed files with 18321 additions and 5409 deletions
@@ -0,0 +1,154 @@
+import { Injectable } from '@nestjs/common';
+import { isDeepStrictEqual } from 'node:util';
+import type { Prisma } from '../../../../../generated/prisma/client';
+import { PrismaService } from '../../../../prisma/prisma.service';
+
+export type ForecastSourceVersion = {
+  instrumentUid: string;
+  source: string;
+  kind: string;
+  rangeKey: string;
+  dataRevision: number;
+  fetchedAt: Date;
+};
+const forecastSourceReadBatchSize = 100;
+
+@Injectable()
+export class ForecastRepository {
+  constructor(private readonly prisma: PrismaService) {}
+
+  resolve(input: {
+    userId: string;
+    revision: string;
+    membershipRevision: number;
+    scopeKey: string;
+    candidate?: object;
+    portfolioProjection: string;
+    portfolios: { accountId: string; dataRevision: number }[];
+    sources: ForecastSourceVersion[];
+    timestamps: { resourceKey: string; at: string }[];
+  }) {
+    return this.prisma.$transaction(async (tx) => {
+      const owner = { userId: input.userId, revision: input.revision };
+      if (input.candidate) {
+        const current = await tx.tbankConnection.updateMany({
+          where: {
+            ...owner,
+            membershipRevision: input.membershipRevision,
+            invalidToken: false,
+          },
+          data: { membershipRevision: { increment: 0 } },
+        });
+        if (!current.count) return null;
+      }
+      const connection = await tx.tbankConnection.findFirst({
+        where: {
+          ...owner,
+          membershipRevision: input.membershipRevision,
+          invalidToken: false,
+        },
+      });
+      if (!connection) return null;
+      const key = { ...owner, scopeKey: input.scopeKey };
+      const previous = await tx.tbankForecast.findUnique({
+        where: { userId_revision_scopeKey: key },
+      });
+      const fallback =
+        previous?.membershipRevision === input.membershipRevision
+          ? previous
+          : null;
+      if (!input.candidate) return fallback;
+      const portfolios = await tx.tbankPortfolio.findMany({
+        where: {
+          ...owner,
+          accountId: { in: input.portfolios.map((row) => row.accountId) },
+        },
+        select: { accountId: true, dataRevision: true },
+      });
+      if (
+        input.portfolios.some(
+          (expected) =>
+            !portfolios.some(
+              (row) =>
+                row.accountId === expected.accountId &&
+                row.dataRevision === expected.dataRevision,
+            ),
+        )
+      )
+        return fallback;
+      // Four identity parameters per source: stay below SQLite's parameter limit.
+      const sources: ForecastSourceVersion[] = [];
+      for (
+        let offset = 0;
+        offset < input.sources.length;
+        offset += forecastSourceReadBatchSize
+      )
+        sources.push(
+          ...(await tx.tbankInstrumentSource.findMany({
+            where: {
+              provider: 'tbank',
+              OR: input.sources
+                .slice(offset, offset + forecastSourceReadBatchSize)
+                .map(({ instrumentUid, source, kind, rangeKey }) => ({
+                  instrumentUid,
+                  source,
+                  kind,
+                  rangeKey,
+                })),
+            },
+            select: {
+              instrumentUid: true,
+              source: true,
+              kind: true,
+              rangeKey: true,
+              dataRevision: true,
+              fetchedAt: true,
+            },
+          })),
+        );
+      if (
+        input.sources.some(
+          (expected) =>
+            !sources.some(
+              (row) =>
+                row.instrumentUid === expected.instrumentUid &&
+                row.source === expected.source &&
+                row.kind === expected.kind &&
+                row.rangeKey === expected.rangeKey &&
+                row.dataRevision === expected.dataRevision &&
+                row.fetchedAt.valueOf() === expected.fetchedAt.valueOf(),
+            ),
+        )
+      )
+        return fallback;
+      const revisions = JSON.parse(
+        JSON.stringify({
+          portfolioProjection: input.portfolioProjection,
+          portfolios: input.portfolios,
+          sources: input.sources,
+        }),
+      ) as Prisma.InputJsonObject;
+      const timestamps = input.timestamps as Prisma.InputJsonArray;
+      if (
+        fallback &&
+        isDeepStrictEqual(fallback.dependencyRevisions, revisions) &&
+        isDeepStrictEqual(fallback.sourceTimestamps, timestamps)
+      )
+        return fallback;
+      const data = {
+        membershipRevision: input.membershipRevision,
+        payload: JSON.parse(
+          JSON.stringify(input.candidate),
+        ) as Prisma.InputJsonObject,
+        dependencyRevisions: revisions,
+        sourceTimestamps: timestamps,
+        calculatedAt: new Date(),
+      };
+      return tx.tbankForecast.upsert({
+        where: { userId_revision_scopeKey: key },
+        create: { ...key, ...data },
+        update: { ...data, dataRevision: { increment: 1 } },
+      });
+    });
+  }
+}