feat: add view, edit roles and permission component (#632)

- Add view roles and permission
- Edit roles and permission
- Edit role description

Fixes: #176

src/app/system/system.service.ts

@@ -79,6 +79,39 @@ export class SystemService {
     return this.http.get('/roles');
   }
 
+  /**
+   * @returns {Observable<any>} Fetches Roles and Permissions
+   */
+  getRole(roleId: any): Observable<any> {
+    return this.http.get(`/roles/${roleId}/permissions`);
+  }
+
+  /**
+   * @param role Role.
+   * @param roleId Role ID.
+   * @returns {Observable<any>}
+   */
+  updateRole(role: any, roleId: string): Observable<any> {
+    return this.http.put(`/roles/${roleId}`, role);
+  }
+
+  /**
+   * @param roleID Role ID.
+   * @param roleValueChanges Role value changes.
+   * @returns {Observable<any>}
+   */
+  updateRolePermission(roleId: any, roleValueChanges: any): Observable<any> {
+    return this.http.put(`/roles/${roleId}/permissions`, roleValueChanges);
+  }
+
+  /**
+   * @param roleId Role ID.
+   * @returns {Observable<any>}
+   */
+  deleteRole(roleId: string): Observable<any> {
+    return this.http.delete(`/roles/${roleId}`);
+  }
+
   /**
    * @param {any} role Role to be created.
    * @returns {Observable<any>}
@@ -87,6 +120,24 @@ export class SystemService {
     return this.http.post('/roles', role);
   }
 
+  /**
+   * @param roleId Role ID.
+   * @returns {Observable<any>}
+   */
+  enableRole(roleId: string): Observable<any> {
+    const httpParams = new HttpParams().set('command', 'enable');
+    return this.http.post(`/roles/${roleId}`, {} , { params: httpParams });
+  }
+
+  /**
+   * @param roleId Role ID.
+   * @returns {Observable<any>}
+   */
+  disableRole(roleId: string): Observable<any> {
+    const httpParams = new HttpParams().set('command', 'disable');
+    return this.http.post(`/roles/${roleId}`, {}, { params: httpParams });
+  }
+
   /**
    * @returns {Observable<any>} Fetches Codes.
    */