openaire-library/searchPages/searchUtils/searchDownload.component.ts

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import {Component, Input, ViewChild} from '@angular/core';
import {ActivatedRoute} from '@angular/router';
import {AlertModal} from '../../utils/modal/alert';
import {ReportsService} from '../../services/reports.service';
import {ModalLoading} from '../../utils/modal/loading.component';
import {PiwikService} from '../../utils/piwik/piwik.service';
import {EnvProperties} from '../../utils/properties/env-properties';
import {ErrorCodes} from '../../utils/properties/errorCodes';
import 'rxjs';
import {Subscriber} from "rxjs";
import {properties} from "../../../../environments/environment";
@Component({
selector: 'search-download',
template: `
<button [attr.uk-tooltip]="'title: Download' + ((totalResults > csvLimit)?' the first 2000 ':' ') + 'results;'"
class="uk-button uk-button-link uk-flex uk-flex-middle" [class.uk-disabled]="isDisabled"
[disabled]="isDisabled"
(click)="downloadfile(downloadURLAPI+'?format=csv'+csvParams,type+'-report-'+((totalResults > csvLimit)?'2000 ':totalResults))">
<icon name="download" [flex]="true"></icon>
<span class="uk-margin-small-left">Download Results</span>
</button>
<modal-loading></modal-loading>
<modal-alert #AlertModalCsvError></modal-alert>
`
})
export class SearchDownloadComponent {
@Input() isDisabled: boolean = false;
@Input() totalResults: number = 0;
@Input() csvParams: string;
@Input() type: string;
@ViewChild(AlertModal) alertApplyAll: AlertModal;
downloadURLAPI: string;
public csvLimit: number = 0;
@ViewChild(ModalLoading) loading: ModalLoading;
// Alert box when something is wrong with CSV requests
@ViewChild('AlertModalCsvError') alertCsvError;
public properties: EnvProperties;
public errorCodes: ErrorCodes = new ErrorCodes();
subscriptions = [];
constructor(private route: ActivatedRoute, private _reportsService: ReportsService, private _piwikService: PiwikService) {
}
ngOnInit() {
this.properties = properties;
this.csvLimit = this.properties.csvLimit;
this.downloadURLAPI = this.properties.csvAPIURL;
}
ngOnDestroy() {
this.subscriptions.forEach(subscription => {
if (subscription instanceof Subscriber) {
subscription.unsubscribe();
}
});
}
denialOfDownload() {
this.alertApplyAll.cancelButton = true;
this.alertApplyAll.okButton = false;
this.alertApplyAll.alertTitle = "Download Results in CSV";
this.alertApplyAll.message = "Sorry, but the results are too many! Use the api instead!";
this.alertApplyAll.cancelButtonText = "Ok";
this.alertApplyAll.open();
console.error("Error downloading file. Results are too many!");
//this.handleError("Error downloading file. Results are too many!", err);
}
downloadfile(url: string, filename: string) {
//var newWindow = window.open("", "_parent");
//var newWindow = window.open();
//console.log("Downloading file: "+ url);
this.openLoading();
this.setMessageLoading("Downloading CSV file");
this.subscriptions.push(this._reportsService.downloadCSVFile(url).subscribe(
data => {
this.closeLoading();
//window.open(window.URL.createObjectURL(data),filename+".csv");
//console.info("Fill window with data for csv");
if (typeof document !== 'undefined') {
var url = window.URL.createObjectURL(data);
var a = window.document.createElement('a');
window.document.body.appendChild(a);
a.setAttribute('style', 'display: none');
a.href = url;
a.download = filename + ".csv";
a.click();
window.URL.revokeObjectURL(url);
a.remove(); // remove the element
}
//newWindow.location.assign(window.URL.createObjectURL(data));
//window.location.href = window.URL.createObjectURL(data);
this.subscriptions.push(this._piwikService.trackDownload(this.properties, "searchDownload").subscribe());
},
error => {
//console.error("Error downloading the file.");
this.handleError("Error downloading file: " + filename, error);
//newWindow.close();
this.closeLoading();
this.confirmOpenCsvError();
}/*,
() => {
console.log('Completed file download.');
//setTimeout(function(){ newWindow.close(); }, 500);
}*/
));
}
public openLoading() {
if (this.loading) {
this.loading.open();
}
}
public closeLoading() {
if (this.loading) {
this.loading.close();
}
}
public setMessageLoading(message: string) {
if (this.loading) {
this.loading.message = message;
}
}
public confirmOpenCsvError() {
this.alertCsvError.cancelButton = false;
this.alertCsvError.okButton = true;
this.alertCsvError.alertTitle = "ERROR DOWNLOADING CSV FILE";
this.alertCsvError.message = "There was an error in csv downloading. Please try again later.";
this.alertCsvError.okButtonText = "OK";
this.alertCsvError.open();
}
private handleError(message: string, error) {
console.error("Search Download (component): " + message, error);
}
}