Refactor permissions to use enums, permissions service

src-ui/src/app/services/permissions.service.ts

@@ -0,0 +1,49 @@
+import { Injectable } from '@angular/core'
+
+export enum PermissionAction {
+  Add = 'add',
+  View = 'view',
+  Change = 'change',
+  Delete = 'delete',
+}
+
+export enum PermissionType {
+  Document = 'documents.%s_document',
+  Tag = 'documents.%s_tag',
+  Correspondent = 'documents.%s_correspondent',
+  DocumentType = 'documents.%s_documenttype',
+  StoragePath = 'documents.%s_storagepath',
+  SavedView = 'documents.%s_savedview',
+  PaperlessTask = 'documents.%s_paperlesstask',
+  UISettings = 'documents.%s_uisettings',
+  Comment = 'documents.%s_comment',
+  Log = 'admin.%s_logentry',
+  MailAccount = 'paperless_mail.%s_mailaccount',
+  MailRule = 'paperless_mail.%s_mailrule',
+  Auth = 'auth.%s_user',
+  Admin = 'admin.%s_logentry',
+}
+
+export interface PaperlessPermission {
+  action: PermissionAction
+  type: PermissionType
+}
+
+@Injectable({
+  providedIn: 'root',
+})
+export class PermissionsService {
+  private permissions: string[]
+
+  public initialize(permissions: string[]) {
+    this.permissions = permissions
+  }
+
+  public currentUserCan(permission: PaperlessPermission): boolean {
+    return this.permissions.includes(this.getPermissionCode(permission))
+  }
+
+  private getPermissionCode(permission: PaperlessPermission): string {
+    return permission.type.replace('%s', permission.action)
+  }
+}