refactor: migrate to nestjs

packages/server-nest/src/modules/SaleInvoices/commands/writeoff/SaleInvoiceWriteoffGL.ts

@@ -0,0 +1,111 @@
+import { SaleInvoice } from '../../models/SaleInvoice';
+import { ILedger } from '@/modules/Ledger/types/Ledger.types';
+import { ILedgerEntry } from '@/modules/Ledger/types/Ledger.types';
+import { AccountNormal } from '@/interfaces/Account';
+import { Ledger } from '@/modules/Ledger/Ledger';
+
+export class SaleInvoiceWriteoffGL {
+  private saleInvoiceModel: SaleInvoice;
+  private ARAccountId: number;
+
+  /**
+   * Sets the sale invoice model.
+   * @param {SaleInvoice} saleInvoiceModel -
+   */
+  constructor(saleInvoiceModel: SaleInvoice) {
+    this.saleInvoiceModel = saleInvoiceModel;
+  }
+
+  /**
+   * Sets the A/R account ID.
+   * @param {number} ARAccountId -
+   */
+  setARAccountId(ARAccountId: number) {
+    this.ARAccountId = ARAccountId;
+    return this;
+  }
+
+  /**
+   * Retrieves the invoice write-off common GL entry.
+   * @param {ISaleInvoice} saleInvoice
+   */
+  private get invoiceWriteoffGLCommonEntry() {
+    return {
+      date: this.saleInvoiceModel.invoiceDate,
+
+      currencyCode: this.saleInvoiceModel.currencyCode,
+      exchangeRate: this.saleInvoiceModel.exchangeRate,
+
+      transactionId: this.saleInvoiceModel.id,
+      transactionType: 'InvoiceWriteOff',
+      transactionNumber: this.saleInvoiceModel.invoiceNo,
+
+      referenceNo: this.saleInvoiceModel.referenceNo,
+      branchId: this.saleInvoiceModel.branchId,
+    };
+  }
+
+  /**
+   * Retrieves the invoice write-off receiveable GL entry.
+   * @param {number} ARAccountId
+   * @param {ISaleInvoice} saleInvoice
+   * @returns {ILedgerEntry}
+   */
+  private get invoiceWriteoffGLReceivableEntry(): ILedgerEntry {
+    const commontEntry = this.invoiceWriteoffGLCommonEntry;
+
+    return {
+      ...commontEntry,
+      credit: this.saleInvoiceModel.localWrittenoffAmount,
+      accountId: this.ARAccountId,
+      contactId: this.saleInvoiceModel.customerId,
+      debit: 0,
+      index: 1,
+      indexGroup: 300,
+      accountNormal:
+        this.saleInvoiceModel.writtenoffExpenseAccount.accountNormal,
+    };
+  }
+
+  /**
+   * Retrieves the invoice write-off expense GL entry.
+   * @param {ISaleInvoice} saleInvoice
+   * @returns {ILedgerEntry}
+   */
+  private get invoiceWriteoffGLExpenseEntry(): ILedgerEntry {
+    const commontEntry = this.invoiceWriteoffGLCommonEntry;
+
+    return {
+      ...commontEntry,
+      debit: this.saleInvoiceModel.writtenoffAmount,
+      accountId: this.saleInvoiceModel.writtenoffExpenseAccountId,
+      credit: 0,
+      index: 2,
+      indexGroup: 300,
+      accountNormal: AccountNormal.DEBIT,
+    };
+  }
+
+  /**
+   * Retrieves the invoice write-off GL entries.
+   * @returns {ILedgerEntry[]}
+   */
+  public getInvoiceWriteoffGLEntries(): ILedgerEntry[] {
+    const creditEntry = this.invoiceWriteoffGLExpenseEntry;
+    const debitEntry = this.invoiceWriteoffGLReceivableEntry;
+
+    return [debitEntry, creditEntry];
+  }
+
+  /**
+   * Retrieves the invoice write-off ledger.
+   * @param {number} ARAccountId
+   * @param {ISaleInvoice} saleInvoice
+   * @returns {Ledger}
+   */
+  public getInvoiceWriteoffLedger(): ILedger {
+    const entries = this.getInvoiceWriteoffGLEntries();
+
+    return new Ledger(entries);
+  }
+}