import {
Component,
Inject,
Input,
OnDestroy,
OnInit,
RendererFactory2,
ViewEncapsulation
} from '@angular/core';
import {Citation, CitationData} from './citation.class';
import {ResultLandingInfo} from "../../../utils/entities/resultLandingInfo";
import {DOCUMENT} from "@angular/common";
import {EnvProperties} from "../../../utils/properties/env-properties";
import {properties} from "../../../../../environments/environment";
import {PiwikService} from "../../../utils/piwik/piwik.service";
declare var Cite: any;
// Based on https://citation.js.org/api/tutorial-getting_started.html browser release
//
@Component({
selector: 'citeThis',
template: `
`
})
export class CiteThisComponent implements OnInit, OnDestroy {
public selectedStyle: string = null;
public selectedFormat: string = null;
public fileText: string;
properties:EnvProperties;
public citationText: string;
public citation: Citation = new Citation();
@Input() result: ResultLandingInfo;
@Input() id: string;
@Input() type: string = "article";
@Input() piwikSiteId;
public data:CitationData;
public clipboard;
timeout;
cite;citeConfig;
sub;
constructor( @Inject(DOCUMENT) private document, private rendererFactory: RendererFactory2, private _piwikService: PiwikService){
}
ngOnInit() {
this.properties = properties;
try{
if (!this.document.getElementById('citationjs')) {
const renderer = this.rendererFactory.createRenderer(this.document, {
id: '-1',
encapsulation: ViewEncapsulation.None,
styles: [],
data: {}
});
const head = this.document.head;
if (head === null) {
throw new Error(' not found within DOCUMENT.');
}
const script = renderer.createElement('script');
renderer.setAttribute(script, "id", "citationjs");
renderer.setAttribute(script, "src", "assets/common-assets/citation-0.4.0-9.min.js");
renderer.setAttribute(script, "type", "text/javascript");
renderer.appendChild(head, script);
this.timeout = setTimeout(() => {
const script2 = renderer.createElement('script');
renderer.setAttribute(script2, "id", "citationjs2");
renderer.setAttribute(script2, "type", "text/javascript");
renderer.setProperty(script2, "text","const Cite = require('citation-js')");
renderer.appendChild(head, script2);
}, 1000);
}
}catch (e) {
console.error(e)
}
}
ngOnDestroy() {
delete this.clipboard;
clearTimeout(this.timeout);
}
private initiate(){
this.citeConfig = Cite.plugins.config.get('csl');
this.cite = new Cite();
this.parseData();
this.createClipboard();
}
private createClipboard() {
if (typeof window !== 'undefined') {
delete this.clipboard;
let Clipboard;
Clipboard = require('clipboard');
this.clipboard = new Clipboard('.clipboard_btn');
}
}
parseData() {
var citationData: CitationData = new CitationData();
if (this.result.identifiers && Array.from(this.result.identifiers.keys()).length > 0) {
var keys = Array.from(this.result.identifiers.keys());
for (var i = 0; i < keys.length; i++) {
if (keys[i] == "doi") {
var ids = this.result.identifiers.get(keys[i]);
for (var j = 0; j < ids.length; j++) {
citationData.DOI = ids[j];
break;
}
}
}
}
citationData.id = this.id;
citationData.type = this.mapTypes();
if (this.result.title) {
citationData.title = this.result.title;
}
if (this.result.publisher) {
citationData.publisher = this.result.publisher;
}
if (this.result.authors) {
citationData.author = [];
var max_length = (this.result.authors.length > 10) ? 10 : this.result.authors.length;
for (var i = 0; i < max_length; i++) {
if (this.result.authors[i] && this.result.authors[i].fullName && this.result.authors[i].fullName.indexOf(", ") !== -1) {
citationData.author.push({
given: this.result.authors[i].fullName.split(", ")[1],
family: this.result.authors[i].fullName.split(", ")[0],
'parse-names': true
});
} else {
citationData.author.push({given: "", family: this.result.authors[i].fullName, 'parse-names': true});
}
// citationData.authors.push(this.result.authors[i]);
}
}
if (this.result.dateofacceptance != undefined) {
citationData.issued = {};
var date: string = (this.result.dateofacceptance.getFullYear()) + ""; // transform to string in case it is an integer
var dateArray: string[] = (date && (date).indexOf('-') !== -1) ? [date.split('-')[0]] : [date];
if (dateArray.length < 3) {
// dateArray.push[1];
// dateArray.push[1];
}
citationData.issued = {"date-parts": [["" + dateArray[0]]]};
if (this.result.date) {
citationData.date = this.result.date;
}
if (this.result.journal) {
if (this.result.journal.journal) {
citationData["container-title"] = this.result.journal.journal;
}
if (this.result.journal.issn) {
citationData.ISSN = this.result.journal.issn;
}
if (this.result.journal.issue) {
citationData.issue = this.result.journal.issue;
}
citationData.type = "article-journal"; // in case of APA volume and pages appear only in specific types not just article
if (this.result.journal.volume) {
citationData.volume = this.result.journal.volume;
}
if (this.result.journal["start_page"] && this.result.journal["end_page"]) {
citationData.page = this.result.journal["start_page"] + "-" + this.result.journal["end_page"];
}
}
}
this.data = citationData;
this.cite.set(this.data);
}
private mapTypes(){
if (this.result.types != undefined && this.result.types.length > 0) {
if(this.result.types.indexOf("Article") != -1) {
return "article";
}else if(this.result.types.indexOf("Conference object") != -1){
return "paper-conference";
}else if( this.result.types[0]){
return this.result.types[0].toLowerCase();
}
}
return "";
}
styleChanged() {
this.citationText = this.get(this.selectedStyle);
}
formatChanged() {
this.fileText = this.get(this.selectedFormat, false);
}
downloadFile(){
if (typeof document !== 'undefined') {
var url = window.URL.createObjectURL(new Blob([this.fileText]));
var a = window.document.createElement('a');
window.document.body.appendChild(a);
a.setAttribute('style', 'display: none');
a.href = url;
a.download = this.selectedFormat + this.citation.fileSuffix[this.citation.fileFormats.indexOf(this.selectedFormat)];
a.click();
window.URL.revokeObjectURL(url);
a.remove(); // remove the element
if (this.properties.enablePiwikTrack && (typeof document !== 'undefined')) {
this.sub = this._piwikService.trackDownload(this.properties, "DownloadCitation"+this.selectedFormat, this.piwikSiteId).subscribe();
}
}
}
get(style:string, isBibliography:boolean = true){
try {
if (!isBibliography && style != "bibtex") {
return this.getFormat(style);
} else {
return this.getBibliography(style);
}
}catch (e) {
console.error(e);
return "";
}
}
/**
* Supports formats bibtex, bibtxt, ris
* @param format
*/
getFormat(format:string) {
if(!this.cite){
this.initiate();
}
return this.cite.format(format, {
format: 'text'
});
}
/**
* Based on this and citeproc library https://citation.js.org/api/tutorial-plugins.html
* if the template doesn;t exist add the CSL xml and the library will produce the citation
* @param template
*/
getBibliography(template:string) {
if(!this.cite || !this.citeConfig ){
this.initiate();
}
if (!this.citeConfig.templates.get(template)) {
this.citeConfig.templates.add(template, this.citation[template]);
}
return this.cite.format('bibliography', {
format: 'text',
template: template,
lang: 'en-US'
});
}
}