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target-exists-directive.ts
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target-exists-directive.ts
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// Copyright Project Harbor Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { Directive, OnChanges, Input, SimpleChanges } from '@angular/core';
import { NG_ASYNC_VALIDATORS, Validator, Validators, ValidatorFn, AbstractControl } from '@angular/forms';
import { MemberService } from '../project/member/member.service';
import { Member } from '../project/member/member';
import { Observable } from 'rxjs';
import { ProjectDefaultService, ProjectService } from "../../lib/services";
@Directive({
selector: '[targetExists]',
providers: [
MemberService,
{ provide: ProjectService, useClass: ProjectDefaultService },
{ provide: NG_ASYNC_VALIDATORS, useExisting: TargetExistsValidatorDirective, multi: true },
]
})
export class TargetExistsValidatorDirective implements Validator, OnChanges {
@Input() targetExists: string;
@Input() projectId: number;
valFn = Validators.nullValidator;
constructor(
private projectService: ProjectService,
private memberService: MemberService) { }
ngOnChanges(changes: SimpleChanges): void {
const change = changes['targetExists'];
if (change) {
const target: string = change.currentValue;
this.valFn = this.targetExistsValidator(target);
} else {
this.valFn = Validators.nullValidator;
}
}
validate(control: AbstractControl): { [key: string]: any } {
return this.valFn(control);
}
targetExistsValidator(target: string): ValidatorFn {
return (control: AbstractControl): { [key: string]: any } => {
switch (target) {
case 'PROJECT_NAME':
return new Observable(observer => {
this.projectService
.checkProjectExists(control.value)
.subscribe(res => observer.next({ 'targetExists': true }), error => observer.next(null));
});
case 'MEMBER_NAME':
return new Observable(observer => {
this.memberService
.listMembers(this.projectId, control.value)
.subscribe((members: Member[]) => {
return members.filter(m => {
if (m.entity_name === control.value) {
return true;
}
return null;
}).length > 0 ?
observer.next({ 'targetExists': true }) : observer.next(null);
}, error => observer.next(null));
});
}
};
}
}