Chore: Changed the account_type and voucher_type enum.

The account type enum is not stored in the database as an enum.
The voucher_type enum is now a table in the database.

Feature: Closing stock can now be saved and in each department.

overlord/src/app/closing-stock/closing-stock.service.ts

@@ -1,9 +1,10 @@
-import { HttpClient } from '@angular/common/http';
+import { HttpClient, HttpParams } from '@angular/common/http';
 import { Injectable } from '@angular/core';
 import { Observable } from 'rxjs/internal/Observable';
 import { catchError } from 'rxjs/operators';
 
 import { ErrorLoggerService } from '../core/error-logger.service';
+import { Voucher } from '../core/voucher';
 
 import { ClosingStock } from './closing-stock';
 
@@ -16,10 +17,38 @@ const serviceName = 'ClosingStockService';
 export class ClosingStockService {
   constructor(private http: HttpClient, private log: ErrorLoggerService) {}
 
-  list(date: string | null): Observable<ClosingStock> {
+  list(date: string | null, costCentre: string | null): Observable<ClosingStock> {
     const listUrl = date === null ? url : `${url}/${date}`;
+    const options = { params: new HttpParams() };
+    if (costCentre !== null) {
+      options.params = options.params.set('d', costCentre);
+    }
     return this.http
-      .get<ClosingStock>(listUrl)
+      .get<ClosingStock>(listUrl, options)
       .pipe(catchError(this.log.handleError(serviceName, 'list'))) as Observable<ClosingStock>;
   }
+
+  save(closingStock: ClosingStock): Observable<ClosingStock> {
+    return this.http
+      .post<ClosingStock>(url, closingStock)
+      .pipe(catchError(this.log.handleError(serviceName, 'save'))) as Observable<ClosingStock>;
+  }
+
+  post(date: string, costCentre: string): Observable<ClosingStock> {
+    const options = { params: new HttpParams().set('d', costCentre) };
+    return this.http
+      .post<ClosingStock>(`${url}/${date}`, {}, options)
+      .pipe(
+        catchError(this.log.handleError(serviceName, 'Post Voucher')),
+      ) as Observable<ClosingStock>;
+  }
+
+  delete(date: string, costCentre: string): Observable<ClosingStock> {
+    const options = { params: new HttpParams().set('d', costCentre) };
+    return this.http
+      .delete<ClosingStock>(`${url}/${date}`, options)
+      .pipe(
+        catchError(this.log.handleError(serviceName, 'Delete Voucher')),
+      ) as Observable<ClosingStock>;
+  }
 }