import {Component, ElementRef, Input, Output, EventEmitter, OnChanges, SimpleChange} from '@angular/core';
import {ISVocabulariesService} from './ISVocabularies.service';
import {RefineFieldResultsService} from '../../services/refineFieldResults.service';
import{EnvProperties} from '../../utils/properties/env-properties';
//Usage example
//
@Component({
selector: 'static-autocomplete',
host: {
'(document:click)': 'handleClick($event)',
},
template: `
`
})
export class StaticAutoCompleteComponent implements OnChanges{
@Input() placeHolderMessage = "Search for entries";
@Input() title = "Autocomplete";
@Output() addItem = new EventEmitter(); // when selected list changes update parent component
@Output() selectedValueChanged = new EventEmitter(); // when changed a method for filtering will be called
@Output() updateValueLabel = new EventEmitter(); //when the value is id sends an event to update the value (for meta tags)
@Output() listUpdated = new EventEmitter(); // when changed a method for filtering will be called
@Input() public list = []; // the entries resulted after filtering function
@Input() public filtered = []; // the entries resulted after filtering function
@Input() public selected = []; // the entries selected from user
@Input() public keywordlimit = 3; // the minimum length of keyword
@Input() public showSelected = true; // the minimum length of keyword
@Input() public multipleSelections:boolean = true;
@Input() public allowDuplicates:boolean = false;
@Input() public selectedValue:string = '';
@Input() public vocabularyId:string ;
@Input() public fieldName:string ;
@Input() public fieldValues;
@Input() public entityName:string ;
@Input() public fieldId:string ;
@Input() properties:EnvProperties;
@Input() public keyword = '';
@Input() public type = 'search' //search, result, context, project
@Input() id;
public warningMessage = "";
public infoMessage = "";
public showLoading:boolean = false;
public tries = 0;
public showInput = true;
public sub;
public done = false;
public results = 0;
public focus:boolean = false;
public currentFieldId: string ;
constructor ( private _vocabulariesService: ISVocabulariesService,private _refineService: RefineFieldResultsService, private myElement: ElementRef) {
this.currentFieldId=this.fieldId;
}
ngOnDestroy(){
if(this.sub){
this.sub.unsubscribe();
}
this._vocabulariesService.clearSubscriptions();
}
ngOnChanges(changes: {[propKey: string]: SimpleChange}) {
if(this.currentFieldId!=this.fieldId){ //this is going to be called when
this.currentFieldId=this.fieldId;
this.initialize();
}
}
private initialize(){
this.showInput = true;
if(this.list == undefined || this.list.length == 0){
this.showLoading = true;
if(this.vocabularyId){
// this.list = this._vocabulariesService.getVocabularyByType(this.vocabularyId, this.entityName);
// this.afterListFetchedActions();
this.sub = this._vocabulariesService.getVocabularyByType(this.vocabularyId, this.entityName, this.properties).subscribe(
data => {
if(data) {
this.list = (this.vocabularyId == "type" && this.entityName == "result" && data.length == 2) ? data[0].concat(data[1]) : data;
this.afterListFetchedActions();
} else {
this.handleError("Error getting vocabulary with id: "+this.vocabularyId+" for "+this.entityName);
this.warningMessage = "Error, couldn't fetch results...";
this.showLoading = false;
this.afterListFetchedActions();
}
}
);
}else if(this.fieldName && this.entityName){
if(this.fieldValues) {
this.list = this._refineService.parse(this.fieldValues, this.fieldName);
this.afterListFetchedActions();
} else {
this.sub = this._refineService.getRefineFieldResultsByFieldName(this.fieldName, this.entityName, this.properties).subscribe(
data => {
this.list = data;
this.afterListFetchedActions();
},
err => {
//console.log(err);
this.handleError("Error getting results for refine field: " + this.fieldName + " for " + this.entityName, err);
this.warningMessage = "Error, couldn't fetch results...";
this.showLoading = false;
this.afterListFetchedActions();
}
);
}
}else{
this.showLoading = false;
}
}else{
this.afterListFetchedActions();
}
}
public updateList(list){ // used in claim context autocomplete
this.list = list;
this.afterListFetchedActions()
}
private afterListFetchedActions(){
this.showLoading = false;
this.getSelectedNameFromGivenId();
this.listUpdated.emit({
value: this.list
});
if(this.list == null || this.list.length == 0 ){
return;
}
this.done = true;
if(this.keyword != ""){
this.filter();
}
}
filter() {
this.focus = true;
if(this.done){
this.infoMessage = "";
this.filtered = [];
if(this.keyword == ""){
var cut = 10;
if(this.list.length < 5){
cut = this.list.length;
}
this.results = this.list.length;
this.filtered =this.list.slice(0, cut);
this.tries = 0;
this.warningMessage = "";
// } else if(this.keyword && this.keyword.length < this.keywordlimit){
// this.tries++;
// if(this.tries == this.keywordlimit -1 ){
// this.warningMessage = "Type at least " + this.keywordlimit + " characters";
// this.tries = 0;
// }
}else{
this.tries = 0;
this.warningMessage = "";
this.filtered = this.list.filter(function(el){
return el.label.toLowerCase().indexOf(this.keyword.toLowerCase()) > -1;
}.bind(this));
var cut = 10;
if(this.filtered .length < 5){
cut = this.list.length;
}
this.results = this.filtered.length;
this.filtered =this.filtered.slice(0, cut);
}
}
}
remove(item:any){
var index:number =this.checkIfExists(item,this.selected);
if (index > -1) {
this.selected.splice(index, 1);
}
if(!this.multipleSelections && this.selected.length == 0 ){
this.showInput = true;
this.selectedValue = "";
this.selectedValueChanged.emit({
value: this.selectedValue
});
this.updateValueLabel.emit({
value:""
});
}
}
select(item:any){
// console.log("select"+this.selected.length + item.id + " "+ item.label);
if(this.multipleSelections){
var index:number =this.checkIfExists(item,this.selected);
if (index > -1 && !this.allowDuplicates) {
this.keyword = "";
this.filtered.splice(0, this.filtered.length);
return;
}
else{
this.selected.push(item);
this.keyword = "";
this.filtered.splice(0, this.filtered.length);
this.addItem.emit({
value: item
});
}
}else{
this.selected.splice(0, this.selected.length);
this.selected.push(item);
this.filtered.splice(0, this.filtered.length);
this.keyword = "";
this.showInput = false;
this.selectedValue = item.id;
this.selectedValueChanged.emit({
value: this.selectedValue
});
this.updateValueLabel.emit({
value:this.showItem(item)
});
}
}
private checkIfExists(item:any,list):number{
if(item.concept && item.concept.id ){
for (var _i = 0; _i < list.length; _i++) {
let itemInList = list[_i];
if(item.concept.id == itemInList.concept.id){
return _i;
}
}
}else if(item.id){
for (var _i = 0; _i < list.length; _i++) {
let itemInList = list[_i];
if(item.id == itemInList.id){
return _i;
}
}
}
return -1;
}
showItem(item:any):string{
if (item.name){ //search
return item.name;
}else if( item.concept && item.concept.label){ //context
return item.concept.label;
}else if (item.label){ //simple
return item.label;
}
}
truncate(str:string, size:number):string{
if(str == null){return "";}
return (str.length > size)?str.substr(0,size)+'...':str;
}
private getSelectedNameFromGivenId(){
if(!this.selectedValue){
return;
}
if(this.list == null || this.list.length == 0 ){
this.selected.push({label: this.selectedValue, id: this.selectedValue});
this.showInput = false;
this.updateValueLabel.emit({
value:this.showItem(this.selected[0])
});
return;
}
this.showInput = true;
for( var i = 0; i < this.list.length; i++){
if(this.list[i].id == this.selectedValue){
this.selectedValue = this.list[i].label;
this.selected.push(this.list[i]);
this.showInput = false;
this.updateValueLabel.emit({
value:this.showItem(this.list[i])
});
return;
}
}
}
handleClick(event){
var clickedComponent = event.target;
var inside = false;
do {
if (clickedComponent === this.myElement.nativeElement) {
inside = true;
}
clickedComponent = clickedComponent.parentNode;
} while (clickedComponent);
if(!inside){
this.focus =false;
this.filtered.splice(0, this.filtered.length);
}
}
private handleError(message: string, error = null) {
console.error("Static Autocomplete (component): "+message, error);
}
}