Revize f892db55

Re #7821: Kontrola uploadu souborů na FE

- přidána metoda pro kontrolu souborů na FE
- vždy musí být pár souborů XML a JPEG se stejným názvem

fe/fulltextsearch/src/Utils.ts

@@ +1 @@
+export default class Utils {
+
+  static removeFileSuffix(file: File): string {
+    return file.name.substring(0, file.name.indexOf('.'));
+  }
+}

fe/fulltextsearch/src/app/components/pages/upload/upload.component.html

@@ -3 +3 @@
     <h1 class="card-header">Upload files</h1>
     <div class="card-body">
       <div class="row justify-content-center align-items-center">
-        <input type="file" (change)="onFilesSelected($event)" multiple #fileInput>
+        <input type="file" (change)="onFilesSelected($event)" multiple #fileInput accept="image/jpeg, application/xml">
         <button class="btn btn-outline-secondary" type="button" (click)="fileInput.click()">Pick files</button>
         <button class="btn btn-outline-secondary" type="button" (click)="onUpload()">Upload</button>
       </div>

fe/fulltextsearch/src/app/components/pages/upload/upload.component.ts

@@ -1 +1 @@
 import { Component, OnInit } from '@angular/core';
 import {QueryService} from '../../../services/query.service';
 import {HttpEventType} from '@angular/common/http';
+import Utils from '../../../../Utils';
 
 @Component({
   selector: 'app-upload',
@@ -25 +26 @@
 
   onUpload() {
     console.log(this.selectedFiles);
-    if (this.selectedFiles === null) {
-      this.resultMessage = 'Select files first';
+
+    if (!this.checkFiles(this.selectedFiles)) {
+      console.log('Files are not valid');
       return;
     }
+
     this.queryService.uploadFile(this.selectedFiles).subscribe( event => {
       if (event.type === HttpEventType.UploadProgress) {
         this.progress = Math.round(event.loaded / event.total * 100);
@@ -38 +41 @@
       }
     });
   }
+
+  checkFiles(selectedFiles: File[]): boolean {
+    if (selectedFiles === null) {
+      this.resultMessage = 'Select files first';
+      return false;
+    }
+
+    // check if is even
+    if (selectedFiles.length % 2 !== 0) {
+      this.resultMessage = 'Always pair of files JPEG and XML';
+      return false;
+    }
+
+    // check if files have same name (name.jpeg, name.xml)
+    for (const file1 of selectedFiles) {
+      let count = 0;
+      const temp1: string = Utils.removeFileSuffix(file1);
+
+      for (const file2 of selectedFiles) {
+        const temp2: string = Utils.removeFileSuffix(file2);
+
+        if (temp1 === temp2) {
+          count++;
+        }
+
+      }
+
+      if (count !== 2) {
+        this.resultMessage = 'File ' + temp1 + ' missing xml or jpeg pair';
+        return false;
+      }
+
+    }
+    return true;
+  }
 }