From e6f38317938d8bb95060af4e748cb4ab10ea8580 Mon Sep 17 00:00:00 2001
From: Ivan Ljubisavljevic <ivan996sk@gmail.com>
Date: Tue, 26 Apr 2022 19:40:44 +0200
Subject: Forma Dataset. Upload csv-a i prikaz tabele #116

---
 .../form-dataset/form-dataset.component.ts         | 101 ++++++++++++++++++++-
 1 file changed, 97 insertions(+), 4 deletions(-)

(limited to 'frontend/src/app/_elements/form-dataset/form-dataset.component.ts')

diff --git a/frontend/src/app/_elements/form-dataset/form-dataset.component.ts b/frontend/src/app/_elements/form-dataset/form-dataset.component.ts
index 092e943f..9bdd7e14 100644
--- a/frontend/src/app/_elements/form-dataset/form-dataset.component.ts
+++ b/frontend/src/app/_elements/form-dataset/form-dataset.component.ts
@@ -1,15 +1,108 @@
-import { Component, OnInit } from '@angular/core';
+import { Component, EventEmitter, Output, ViewChild } from '@angular/core';
+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, TableData } from '../datatable/datatable.component';
+import { CsvParseService } from 'src/app/_services/csv-parse.service';
+import {FormControl, Validators} from '@angular/forms';
 
 @Component({
   selector: 'app-form-dataset',
   templateUrl: './form-dataset.component.html',
   styleUrls: ['./form-dataset.component.css']
 })
-export class FormDatasetComponent implements OnInit {
+export class FormDatasetComponent {
 
-  constructor() { }
+  @ViewChild(DatatableComponent) datatable!: DatatableComponent;
 
-  ngOnInit(): void {
+  nameFormControl = new FormControl('', [Validators.required, Validators.email]);
+
+  delimiterOptions: Array<string> = [",", ";",  "|", "razmak", "novi red"]; //podrazumevano ","
+
+  csvRecords: any[] = [];
+  files: File[] = [];
+  rowsNumber: number = 0;
+  colsNumber: number = 0;
+
+  dataset: Dataset; //dodaj ! potencijalno
+
+  tableData: TableData = new TableData();
+
+  constructor(private modelsService: ModelsService, private datasetsService: DatasetsService, private csv: CsvParseService) {
+    this.dataset = new Dataset();
+    this.dataset.delimiter = ',';
+  }
+
+  //@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) {
+      this.tableData.hasInput = false;
+      return;
+    }
+    else
+      this.tableData.hasInput = true;
+
+    this.tableData.loaded = false;
+    this.update();
+  }
+
+  update() {
+
+    if (this.files.length < 1)
+      return;
+
+    const fileReader = new FileReader();
+    fileReader.onload = (e) => {
+      if (typeof fileReader.result === 'string') {
+        const result = this.csv.csvToArray(fileReader.result, (this.dataset.delimiter == "razmak") ? " " : (this.dataset.delimiter == "novi red") ? "\t" : this.dataset.delimiter)
+
+        if (this.dataset.hasHeader)
+          this.csvRecords = result.splice(0, 11);
+        else
+          this.csvRecords = result.splice(0, 10);
+
+        this.colsNumber = result[0].length;
+        this.rowsNumber = result.length;
+
+        this.tableData.data = this.csvRecords
+        this.tableData.hasHeader = this.dataset.hasHeader;
+        this.tableData.loaded = true;
+        this.tableData.numCols = this.colsNumber;
+        this.tableData.numRows = this.rowsNumber;
+      }
+    }
+    fileReader.readAsText(this.files[0]);
+  }
+
+  checkAccessible() {
+    if (this.dataset.isPublic)
+      this.dataset.accessibleByLink = true;
   }
 
+  uploadDataset() {
+    if (this.files[0] == undefined) {
+      shared.openDialog("Greška", "Niste izabrali fajl za učitavanje.");
+      return;
+    }
+
+    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.uploaderId = shared.userId;
+
+      this.datasetsService.addDataset(this.dataset).subscribe((dataset) => {
+        shared.openDialog("Obaveštenje", "Uspešno ste dodali novi izvor podataka u kolekciju. Molimo sačekajte par trenutaka da se procesira.");
+      }, (error) => {
+        shared.openDialog("Neuspeo pokušaj!", "Izvor podataka 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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