refactor: banking services to Nestjs

packages/server-nest/src/modules/BankRules/commands/EditBankRule.service.ts

@@ -0,0 +1,72 @@
+import { Inject, Injectable } from '@nestjs/common';
+import {
+  IBankRuleEventEditedPayload,
+  IBankRuleEventEditingPayload,
+  IEditBankRuleDTO,
+} from '../types';
+import { BankRule } from '../models/BankRule';
+import { EventEmitter2 } from '@nestjs/event-emitter';
+import { UnitOfWork } from '@/modules/Tenancy/TenancyDB/UnitOfWork.service';
+import { events } from '@/common/events/events';
+
+@Injectable()
+export class EditBankRuleService {
+  constructor(
+    private readonly uow: UnitOfWork,
+    private readonly eventPublisher: EventEmitter2,
+
+    @Inject(BankRule.name) private bankRuleModel: typeof BankRule,
+  ) {}
+
+  /**
+   *
+   * @param createDTO
+   * @returns
+   */
+  private transformDTO(createDTO: IEditBankRuleDTO): Partial<BankRule> {
+    return {
+      ...createDTO,
+    };
+  }
+
+  /**
+   * Edits the given bank rule.
+   * @param {number} ruleId -
+   * @param {IEditBankRuleDTO} editBankDTO
+   */
+  public async editBankRule(
+    ruleId: number,
+    editRuleDTO: IEditBankRuleDTO
+  ) {
+    const oldBankRule = await this.bankRuleModel.query()
+      .findById(ruleId)
+      .withGraphFetched('conditions')
+      .throwIfNotFound();
+
+    const tranformDTO = this.transformDTO(editRuleDTO);
+
+    return this.uow.withTransaction(async (trx) => {
+      // Triggers `onBankRuleEditing` event.
+      await this.eventPublisher.emitAsync(events.bankRules.onEditing, {
+        oldBankRule,
+        ruleId,
+        editRuleDTO,
+        trx,
+      } as IBankRuleEventEditingPayload);
+
+      // Updates the given bank rule.
+      const bankRule = await this.bankRuleModel.query(trx).upsertGraphAndFetch({
+        ...tranformDTO,
+        id: ruleId,
+      });
+      
+      // Triggers `onBankRuleEdited` event.
+      await this.eventPublisher.emitAsync(events.bankRules.onEdited, {
+        oldBankRule,
+        bankRule,
+        editRuleDTO,
+        trx,
+      } as IBankRuleEventEditedPayload);
+    });
+  }
+}