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import { Component, EventEmitter, Output, ViewChild } from '@angular/core';
import { NgxCsvParser, NgxCSVParserError } from 'ngx-csv-parser';
import Dataset from 'src/app/_data/Dataset';
import { DatasetsService } from 'src/app/_services/datasets.service';
import { ModelsService } from 'src/app/_services/models.service';
import shared from 'src/app/Shared';
import { DatatableComponent } from '../datatable/datatable.component';
@Component({
selector: 'app-add-new-dataset',
templateUrl: './add-new-dataset.component.html',
styleUrls: ['./add-new-dataset.component.css']
})
export class AddNewDatasetComponent {
@Output() newDatasetAdded = new EventEmitter<string>();
@ViewChild(DatatableComponent) datatable?: DatatableComponent;
delimiterOptions: Array<string> = [",", ";", "\t", "razmak", "|"]; //podrazumevano ","
//hasHeader: boolean = true;
hasInput: boolean = false;
csvRecords: any[] = [];
files: File[] = [];
rowsNumber: number = 0;
colsNumber: number = 0;
dataset: Dataset; //dodaj ! potencijalno
constructor(private ngxCsvParser: NgxCsvParser, private modelsService: ModelsService, private datasetsService: DatasetsService) {
this.dataset = new Dataset();
}
//@ViewChild('fileImportInput', { static: false }) fileImportInput: any; cemu je ovo sluzilo?
changeListener($event: any): void {
this.files = $event.srcElement.files;
if (this.files.length == 0 || this.files[0] == null) {
//console.log("NEMA FAJLA");
//this.loaded.emit("not loaded");
this.hasInput = false;
return;
}
else
this.hasInput = true;
this.update();
}
update() {
if (this.files.length < 1)
return;
this.datatable!.loaded = false;
this.datatable!.hasInput = this.hasInput;
this.ngxCsvParser.parse(this.files[0], { header: false, delimiter: (this.dataset.delimiter == "razmak") ? " " : (this.dataset.delimiter == "") ? "," : this.dataset.delimiter })
.pipe().subscribe((result) => {
console.log('Result', result);
if (result.constructor === Array) {
if(this.dataset.hasHeader)
this.csvRecords = result.splice(0,11);
else
this.csvRecords=result.splice(0,10);
if (this.dataset.hasHeader)
this.rowsNumber = this.csvRecords.length - 1;
else
this.rowsNumber = this.csvRecords.length;
this.colsNumber = this.csvRecords[0].length;
if (this.dataset.hasHeader)
this.dataset.header = this.csvRecords[0];
this.datatable!.data = this.csvRecords;
this.datatable!.hasHeader = this.dataset.hasHeader;
this.datatable!.loaded = true;
}
}, (error: NgxCSVParserError) => {
console.log('Error', error);
});
}
checkAccessible() {
if (this.dataset.isPublic)
this.dataset.accessibleByLink = true;
}
uploadDataset() {
this.modelsService.uploadData(this.files[0]).subscribe((file) => {
//console.log('ADD MODEL: STEP 2 - ADD DATASET WITH FILE ID ' + file._id);
this.dataset.fileId = file._id;
this.dataset.username = shared.username;
this.datasetsService.addDataset(this.dataset).subscribe((dataset) => {
this.newDatasetAdded.emit("added");
//this.refreshMyDatasetList(); refreshuj dataset listu u ds-load i selektuj taj ds
//this.showMyDatasets = true;
//this.selectThisDataset(dataset);
shared.openDialog("Obaveštenje", "Uspešno ste dodali novi izvor podataka u kolekciju. Molimo sačekajte par trenutaka da se procesira.");
}, (error) => {
shared.openDialog("Neuspeo pokušaj!", "Dataset sa unetim nazivom već postoji u Vašoj kolekciji. Izmenite naziv ili iskoristite postojeći dataset.");
}); //kraj addDataset subscribe
}, (error) => {
}); //kraj uploadData subscribe
}
}
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