add server to monorepo.

packages/server/src/services/Sales/SaleInvoiceWriteoffGLEntries.ts

@@ -0,0 +1,104 @@
+import { Service } from 'typedi';
+import { ISaleInvoice, AccountNormal, ILedgerEntry, ILedger } from '@/interfaces';
+import Ledger from '@/services/Accounting/Ledger';
+
+@Service()
+export class SaleInvoiceWriteoffGLEntries {
+  /**
+   * Retrieves the invoice write-off common GL entry.
+   * @param {ISaleInvoice} saleInvoice
+   */
+  private getInvoiceWriteoffGLCommonEntry = (saleInvoice: ISaleInvoice) => {
+    return {
+      date: saleInvoice.invoiceDate,
+
+      currencyCode: saleInvoice.currencyCode,
+      exchangeRate: saleInvoice.exchangeRate,
+
+      transactionId: saleInvoice.id,
+      transactionType: 'InvoiceWriteOff',
+      transactionNumber: saleInvoice.invoiceNo,
+
+      referenceNo: saleInvoice.referenceNo,
+      branchId: saleInvoice.branchId,
+    };
+  };
+
+  /**
+   * Retrieves the invoice write-off receiveable GL entry.
+   * @param   {number} ARAccountId
+   * @param   {ISaleInvoice} saleInvoice
+   * @returns {ILedgerEntry}
+   */
+  private getInvoiceWriteoffGLReceivableEntry = (
+    ARAccountId: number,
+    saleInvoice: ISaleInvoice
+  ): ILedgerEntry => {
+    const commontEntry = this.getInvoiceWriteoffGLCommonEntry(saleInvoice);
+
+    return {
+      ...commontEntry,
+      credit: saleInvoice.localWrittenoffAmount,
+      accountId: ARAccountId,
+      contactId: saleInvoice.customerId,
+      debit: 0,
+      index: 1,
+      indexGroup: 300,
+      accountNormal: saleInvoice.writtenoffExpenseAccount.accountNormal,
+    };
+  };
+
+  /**
+   * Retrieves the invoice write-off expense GL entry.
+   * @param   {ISaleInvoice} saleInvoice
+   * @returns {ILedgerEntry}
+   */
+  private getInvoiceWriteoffGLExpenseEntry = (
+    saleInvoice: ISaleInvoice
+  ): ILedgerEntry => {
+    const commontEntry = this.getInvoiceWriteoffGLCommonEntry(saleInvoice);
+
+    return {
+      ...commontEntry,
+      debit: saleInvoice.localWrittenoffAmount,
+      accountId: saleInvoice.writtenoffExpenseAccountId,
+      credit: 0,
+      index: 2,
+      indexGroup: 300,
+      accountNormal: AccountNormal.DEBIT,
+    };
+  };
+
+  /**
+   * Retrieves the invoice write-off GL entries.
+   * @param   {number} ARAccountId
+   * @param   {ISaleInvoice} saleInvoice
+   * @returns {ILedgerEntry[]}
+   */
+  public getInvoiceWriteoffGLEntries = (
+    ARAccountId: number,
+    saleInvoice: ISaleInvoice
+  ): ILedgerEntry[] => {
+    const creditEntry = this.getInvoiceWriteoffGLExpenseEntry(saleInvoice);
+    const debitEntry = this.getInvoiceWriteoffGLReceivableEntry(
+      ARAccountId,
+      saleInvoice
+    );
+    return [debitEntry, creditEntry];
+  };
+
+  /**
+   * Retrieves the invoice write-off ledger.
+   * @param   {number} ARAccountId
+   * @param   {ISaleInvoice} saleInvoice
+   * @returns {Ledger}
+   */
+  public getInvoiceWriteoffLedger = (
+    ARAccountId: number,
+    saleInvoice: ISaleInvoice
+  ): ILedger => {
+    const entries = this.getInvoiceWriteoffGLEntries(ARAccountId, saleInvoice);
+
+    return new Ledger(entries);
+  };
+}