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import { Component } from '@angular/core';
import { Router } from '@angular/router';
import { FriendService } from '../shared';
@Component({
selector: 'my-friend-add',
template: require('./friend-add.component.html'),
styles: [ require('./friend-add.component.scss') ]
})
export class FriendAddComponent {
urls = [ '' ];
error: string = null;
constructor(private router: Router, private friendService: FriendService) {}
addField() {
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);
}
removeField(index: number) {
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.isUrlsRegexValid(notEmptyUrls)) {
this.error = 'Some url(s) are not valid.';
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 => {
if (status === 409) {
alert('Already made friends!');
} else {
alert('Made friends!');
}
},
error => alert(error)
);
}
private getNotEmptyUrls() {
const notEmptyUrls = [];
this.urls.forEach((url) => {
if (url !== '') notEmptyUrls.push(url);
});
return notEmptyUrls;
}
// Temporary
// Use HTML validators
private isUrlsRegexValid(urls: string[]) {
let res = true;
const urlRegex = new RegExp('^https?://(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)$');
urls.forEach((url) => {
if (urlRegex.test(url) === false) {
res = false;
}
});
return res;
}
private isUrlsUnique(urls: string[]) {
return urls.every(url => urls.indexOf(url) === urls.lastIndexOf(url));
}
}
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