refactor: organize backend by business responsibility

2026-09-13 13:52:57 +03:00
parent 7fde3ece6e
commit 8ba005346d
145 changed files with 3027 additions and 2346 deletions
@@ -0,0 +1,145 @@
+import { Injectable } from '@nestjs/common';
+import { BankCard, Prisma } from '../../../../../generated/prisma/client';
+import { PrismaService } from '../../../../prisma/prisma.service';
+import {
+  BankCardDto,
+  CreateBankCardDto,
+  UpdateBankCardDto,
+} from '../presentation/bank-card.dto';
+import { bankBalance } from '../domain/bank-card.calculations';
+import { rubMoney } from '../domain/rub-money';
+
+import {
+  cardInput,
+  conflict,
+  currentDate,
+  fail,
+  fingerprint,
+  missing,
+} from './bank-card-input';
+import { BankCardsRepository } from '../infrastructure/bank-cards.repository';
+type Tx = Prisma.TransactionClient;
+@Injectable()
+export class BankCardsService {
+  constructor(
+    private readonly prisma: PrismaService,
+    private readonly repository: BankCardsRepository,
+  ) {}
+  private async cardView(tx: Tx, card: BankCard): Promise<BankCardDto> {
+    const rows = await tx.bankCardOperation.findMany({
+      where: {
+        userId: card.userId,
+        deletedAt: null,
+        OR: [{ cardId: card.id }, { targetCardId: card.id }],
+      },
+    });
+    return {
+      id: card.id,
+      name: card.name,
+      bankName: card.bankName,
+      lastFour: card.lastFour,
+      paymentSystem: card.paymentSystem,
+      openingDate: card.openingDate,
+      openingBalance: rubMoney(card.openingBalanceKopecks),
+      balance: rubMoney(bankBalance(card.id, card.openingBalanceKopecks, rows)),
+      version: card.version,
+      archivedAt: card.archivedAt?.toISOString() ?? null,
+    };
+  }
+  list(userId: string, includeArchived = false) {
+    return this.prisma.$transaction(async (tx) =>
+      Promise.all(
+        (
+          await tx.bankCard.findMany({
+            where: { userId, ...(includeArchived ? {} : { archivedAt: null }) },
+            orderBy: [{ createdAt: 'asc' }, { id: 'asc' }],
+          })
+        ).map((card) => this.cardView(tx, card)),
+      ),
+    );
+  }
+  get(userId: string, id: string) {
+    return this.prisma.$transaction(async (tx) =>
+      this.cardView(tx, await this.repository.card(tx, userId, id)),
+    );
+  }
+  createCard(userId: string, dto: CreateBankCardDto) {
+    const input = cardInput(dto),
+      hash = fingerprint(input);
+    return this.repository.write(async (tx) => {
+      const existing = await tx.bankCard.findUnique({ where: { id: dto.id } });
+      if (existing) {
+        if (existing.userId !== userId) missing();
+        if (existing.createFingerprint !== hash)
+          conflict('BANK_INTENT_CONFLICT');
+        return this.cardView(tx, existing);
+      }
+      currentDate(input.openingDate);
+      await this.repository.seed(tx, userId);
+      return this.cardView(
+        tx,
+        await tx.bankCard.create({
+          data: { ...input, id: dto.id, userId, createFingerprint: hash },
+        }),
+      );
+    });
+  }
+  updateCard(userId: string, id: string, dto: UpdateBankCardDto) {
+    return this.repository.write(async (tx) => {
+      const previous = await this.repository.card(tx, userId, id);
+      if (previous.version !== dto.version) conflict();
+      const input = cardInput({
+        id,
+        name: dto.name ?? previous.name,
+        bankName:
+          dto.bankName === undefined
+            ? (previous.bankName ?? undefined)
+            : (dto.bankName ?? undefined),
+        lastFour:
+          dto.lastFour === undefined
+            ? (previous.lastFour ?? undefined)
+            : (dto.lastFour ?? undefined),
+        paymentSystem:
+          dto.paymentSystem === undefined
+            ? previous.paymentSystem
+            : dto.paymentSystem,
+        openingBalance:
+          dto.openingBalance ?? rubMoney(previous.openingBalanceKopecks),
+        openingDate: dto.openingDate ?? previous.openingDate,
+      });
+      const financial =
+        input.openingBalanceKopecks !== previous.openingBalanceKopecks ||
+        input.openingDate !== previous.openingDate;
+      if (financial && previous.archivedAt) conflict('BANK_CARD_ARCHIVED');
+      currentDate(input.openingDate);
+      if (
+        await tx.bankCardOperation.findFirst({
+          where: {
+            userId,
+            deletedAt: null,
+            date: { lt: input.openingDate },
+            OR: [{ cardId: id }, { targetCardId: id }],
+          },
+        })
+      )
+        fail('BANK_OPENING_DATE_CONFLICT');
+      const changed = await tx.bankCard.updateMany({
+        where: { id, userId, version: dto.version },
+        data: {
+          ...input,
+          paymentSystem: input.paymentSystem ?? null,
+          version: { increment: 1 },
+          ...(dto.archived === undefined
+            ? {}
+            : {
+                archivedAt: dto.archived
+                  ? (previous.archivedAt ?? new Date())
+                  : null,
+              }),
+        },
+      });
+      if (changed.count !== 1) conflict();
+      return this.cardView(tx, await this.repository.card(tx, userId, id));
+    });
+  }
+}