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/*
* Copyright (c) 2022. Deutsche Telekom AG
*
* 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.
*
* SPDX-License-Identifier: Apache-2.0
*/
import { Component, Input, OnInit } from '@angular/core';
import { NavigationStart, Router } from '@angular/router';
import { Subscription } from 'rxjs';
import { Alert, AlertType } from './alert.model';
import { AlertService } from './alert.service';
import { UnsubscribeService } from 'src/app/services/unsubscribe/unsubscribe.service';
import { takeUntil } from 'rxjs/operators';
import { environment } from 'src/environments/environment';
import { Problem } from '../../../../openapi/output';
import DownstreamSystemEnum = Problem.DownstreamSystemEnum;
@Component({
selector: 'app-alert',
templateUrl: 'alert.component.html',
styleUrls: ['alert.component.css'],
providers: [UnsubscribeService],
})
export class AlertComponent implements OnInit {
@Input() id = 'default-alert';
@Input() fade = true;
isCollapsed = true;
informativeAlerts: AlertType[] = [AlertType.Success, AlertType.Info];
alerts: Alert[] = [];
alertSubscription!: Subscription;
routeSubscription!: Subscription;
AlertType = AlertType;
environment = environment;
DownstreamSystem = DownstreamSystemEnum;
constructor(
private router: Router,
private alertService: AlertService,
private unsubscribeService: UnsubscribeService,
) {}
ngOnInit() {
// subscribe to new alert notifications
this.alertSubscription = this.alertService.alerts
.pipe(takeUntil(this.unsubscribeService.unsubscribe$))
.subscribe(alert => {
// clear alerts when an empty alert is received
if (!alert.message) {
// filter out alerts without 'keepAfterRouteChange' flag
this.alerts = this.alerts.filter(x => x.keepAfterRouteChange);
// remove 'keepAfterRouteChange' flag on the rest
this.alerts.forEach(x => delete x.keepAfterRouteChange);
return;
}
if (this.alerts.filter(a => a.message === alert.message).length === 0) {
// add alert to array
this.alerts.push(alert);
}
// auto close alert if required
if (alert.type === AlertType.Warning) {
setTimeout(() => this.removeAlert(alert), 10000);
}
});
// clear alerts on location change
this.routeSubscription = this.router.events
.pipe(takeUntil(this.unsubscribeService.unsubscribe$))
.subscribe(event => {
if (event instanceof NavigationStart) {
this.alertService.clear(this.id);
}
});
}
removeAlert(alert: Alert) {
// check if already removed to prevent error on auto close
if (!this.alerts.includes(alert)) {
return;
}
if (this.fade) {
// fade out alert
this.alerts.find(x => x === alert)!.fade = true;
// remove alert after faded out
setTimeout(() => {
this.alerts = this.alerts.filter(x => x !== alert);
}, 250);
} else {
// remove alert
this.alerts = this.alerts.filter(x => x !== alert);
}
}
cssClass(alert: Alert) {
if (!alert) {
return;
}
const classes = ['show', 'alert', 'alert-dismissable'];
const alertTypeClass = {
/*
[AlertType.Success]: 'alert alert-success',
[AlertType.Error]: 'alert alert-danger',
[AlertType.Info]: 'alert alert-info',
[AlertType.Warning]: 'alert alert-warning'
*/
[AlertType.Success]: 'alert-success',
[AlertType.Error]: 'alert-danger',
[AlertType.Info]: 'alert-info',
[AlertType.Warning]: 'alert-warning',
};
classes.push(alertTypeClass[alert.type]);
if (alert.fade) {
classes.push('fade');
}
return classes.join(' ');
}
}
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