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20effc67 TL |
1 | import { Directive, Input, TemplateRef, ViewContainerRef } from '@angular/core'; |
2 | ||
3 | import _ from 'lodash'; | |
4 | ||
5 | import { Permission, Permissions } from '~/app/shared/models/permissions'; | |
6 | import { AuthStorageService } from '~/app/shared/services/auth-storage.service'; | |
7 | ||
8 | type Condition = string | string[] | Partial<{ [Property in keyof Permissions]: keyof Permission }>; | |
9 | ||
10 | @Directive({ | |
11 | selector: '[cdScope]' | |
12 | }) | |
13 | export class AuthStorageDirective { | |
14 | permissions: Permissions; | |
15 | ||
16 | constructor( | |
17 | private templateRef: TemplateRef<any>, | |
18 | private viewContainer: ViewContainerRef, | |
19 | private authStorageService: AuthStorageService | |
20 | ) {} | |
21 | ||
22 | @Input('cdScope') set cdScope(condition: Condition) { | |
23 | this.permissions = this.authStorageService.getPermissions(); | |
24 | if (this.isAuthorized(condition)) { | |
25 | this.viewContainer.createEmbeddedView(this.templateRef); | |
26 | } else { | |
27 | this.viewContainer.clear(); | |
28 | } | |
29 | } | |
30 | ||
31 | @Input() cdScopeMatchAll = true; | |
32 | ||
33 | private isAuthorized(condition: Condition): boolean { | |
34 | const everyOrSome = this.cdScopeMatchAll ? _.every : _.some; | |
35 | ||
36 | if (_.isString(condition)) { | |
37 | return _.get(this.permissions, [condition, 'read'], false); | |
38 | } else if (_.isArray(condition)) { | |
39 | return everyOrSome(condition, (permission) => this.permissions[permission]['read']); | |
40 | } else if (_.isObject(condition)) { | |
41 | return everyOrSome(condition, (value, key) => { | |
42 | return everyOrSome(value, (val) => this.permissions[key][val]); | |
43 | }); | |
44 | } | |
45 | ||
46 | return false; | |
47 | } | |
48 | } |