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import { Component, OnInit } from '@angular/core';
import { FormControl, FormGroup } from '@angular/forms';
import { Router } from '@angular/router';
import { validateUrl } from '../../../shared';
import { FriendService } from '../shared';
@Component({
selector: 'my-friend-add',
templateUrl: './friend-add.component.html',
styleUrls: [ './friend-add.component.scss' ]
})
export class FriendAddComponent implements OnInit {
form: FormGroup;
urls = [ ];
error: string = null;
constructor(private router: Router, private friendService: FriendService) {}
ngOnInit() {
this.form = new FormGroup({});
this.addField();
}
addField() {
this.form.addControl(`url-${this.urls.length}`, new FormControl('', [ validateUrl ]));
this.urls.push('');
}
customTrackBy(index: number, obj: any): any {
return index;
}
displayAddField(index: number) {
return index === (this.urls.length - 1);
}
displayRemoveField(index: number) {
return (index !== 0 || this.urls.length > 1) && index !== (this.urls.length - 1);
}
isFormValid() {
// Do not check the last input
for (let i = 0; i < this.urls.length - 1; i++) {
if (!this.form.controls[`url-${i}`].valid) return false;
}
const lastIndex = this.urls.length - 1;
// If the last input (which is not the first) is empty, it's ok
if (this.urls[lastIndex] === '' && lastIndex !== 0) {
return true;
} else {
return this.form.controls[`url-${lastIndex}`].valid;
}
}
removeField(index: number) {
// Remove the last control
this.form.removeControl(`url-${this.urls.length - 1}`);
this.urls.splice(index, 1);
}
makeFriends() {
this.error = '';
const notEmptyUrls = this.getNotEmptyUrls();
if (notEmptyUrls.length === 0) {
this.error = 'You need to specify at less 1 url.';
return;
}
if (!this.isUrlsUnique(notEmptyUrls)) {
this.error = 'Urls need to be unique.';
return;
}
const confirmMessage = 'Are you sure to make friends with:\n - ' + notEmptyUrls.join('\n - ');
if (!confirm(confirmMessage)) return;
this.friendService.makeFriends(notEmptyUrls).subscribe(
status => {
// TODO: extractdatastatus
// if (status === 409) {
// alert('Already made friends!');
// } else {
alert('Make friends request sent!');
this.router.navigate([ '/admin/friends/list' ]);
// }
},
error => alert(error.text)
);
}
private getNotEmptyUrls() {
const notEmptyUrls = [];
Object.keys(this.form.value).forEach((urlKey) => {
const url = this.form.value[urlKey];
if (url !== '') notEmptyUrls.push(url);
});
return notEmptyUrls;
}
private isUrlsUnique(urls: string[]) {
return urls.every(url => urls.indexOf(url) === urls.lastIndexOf(url));
}
}
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