workspace-ionic-app/src/app/show-folder/show-folder.component.ts

import { Component, OnInit, Input, CUSTOM_ELEMENTS_SCHEMA, Output, EventEmitter, ElementRef, ViewChild } from '@angular/core';

import { AlertController, ToastController, IonicModule, ActionSheetController, ActionSheetButton, AlertOptions, ModalController, ModalOptions } from '@ionic/angular';

import { FileOpener } from '@awesome-cordova-plugins/file-opener/ngx';
import { StoragehubService } from '../storagehub.service';
import { CommonModule } from '@angular/common';
import { MatIconModule } from '@angular/material/icon';
import { WSItem } from '../model/ws-item';
import { Action } from '../model/actions/action';
import { CreateFolderAction } from '../model/actions/create-folder';
import { Actions } from '../model/actions/actions';
import { ItemsListComponent } from '../items-list/items-list.component';
import { Sorting, SortName, SortType } from '../model/sorting';

@Component({
  standalone: true,
  selector: 'show-folder',
  providers: [FileOpener, StoragehubService],
  templateUrl: './show-folder.component.html',
  styleUrls: ['./show-folder.component.scss'],
  schemas: [CUSTOM_ELEMENTS_SCHEMA],
  imports: [
    CommonModule, IonicModule, MatIconModule, ItemsListComponent
  ]
})
export class ShowFolderComponent implements OnInit {

  @Output() folderClickedEvent = new EventEmitter<WSItem>();

  filteredItems: WSItem[] | undefined;
  _items: WSItem[] | undefined;

  currentSortName = SortName.Name;
  currentSortType = SortType.Asc;

  @Input() set items(items: WSItem[] | undefined) {
    this._items = items?.sort(Sorting.getSortFunction(this.currentSortName, this.currentSortType));
    this.filteredItems = this._items;
  }

  @Input() parentItem: WSItem | undefined = undefined;

  @Input() title: string | undefined;

  @Input() root: boolean = false;

  underUploadItem: string[] = [];

  selectedSegment = "all";

  public get sortName(): typeof SortName {
    return SortName; 
  }

  @ViewChild('filepicker') uploader!: ElementRef;

  customSortAlertOptions = {
    header: 'Sort by',
    translucent: true,
  };

  constructor(
    private actionSheetCtrl: ActionSheetController,
    private storagehub: StoragehubService,
    private alertCtrl: AlertController,
    private modalCtrl: ModalController,
    private toastController: ToastController
  ) {
  }


  ngOnInit(): void {
  }

  loadDocuments() {
    this.filteredItems = undefined;
    if (this.parentItem) {
      this.storagehub.getChildren(this.parentItem.item.id).subscribe(
        (res) => {
          const tmpItems$: WSItem[] = []
          const tmpFiltered$: WSItem[] = []
          var segmentFilterFunction = this.getSegmentFilterFunction();
          res.forEach(i => {
            var localItem = new WSItem(i);
            tmpItems$.push(localItem);
            if (segmentFilterFunction(localItem))
              tmpFiltered$.push(localItem);
          });
          this._items = tmpItems$.sort(Sorting.getSortFunction(this.currentSortName, this.currentSortType));
          this.filteredItems = tmpFiltered$.sort(Sorting.getSortFunction(this.currentSortName, this.currentSortType));
        })
    }
  }

  getSegmentFilterFunction(): (value: WSItem) => unknown {
    var filterItemFunction;
    switch (this.selectedSegment) {
      case "shared":
        filterItemFunction = (value: WSItem) => value.type == "SharedFolder";
        break;
      case "folders":
        filterItemFunction = (value: WSItem) => value.isFolder();
        break;
      case "files":
        filterItemFunction = (value: WSItem) => value.isFile();
        break;
      default:
        filterItemFunction = (value: WSItem) => true;
    }
    return filterItemFunction;
  }

  filterBy(value: string) {
    if (value == this.selectedSegment) return;
    this.filteredItems = undefined;
    this.selectedSegment = value;
    if (this.selectedSegment == "all")
      this.filteredItems = this._items;
    else {
      const tmpFiltered$: WSItem[] = []
      this._items?.filter(this.getSegmentFilterFunction()).forEach((i) => tmpFiltered$.push(i));
      this.filteredItems = tmpFiltered$;
    }
  }

  changeSortType() {
    if (this.currentSortType == SortType.Asc)
      this.currentSortType = SortType.Desc;
    else this.currentSortType = SortType.Asc;
    this.updateSort();
  }

  changeSortName($event: any) {
    var sort : SortName  = $event.target.value;
    if (this.currentSortName != sort){
      this.currentSortName = sort;
      this.updateSort();
    }
  }

  updateSort() {
    this._items = this._items?.sort(Sorting.getSortFunction(this.currentSortName, this.currentSortType));
    this.filteredItems = this.filteredItems?.sort(Sorting.getSortFunction(this.currentSortName, this.currentSortType));
  }

  itemClicked(item: WSItem) {
    if (item.isFolder()) {
      this.folderClickedEvent.emit(item);
    }
  }

  addFile() {
    this.uploader.nativeElement.click();
  }

  async fileSelected($event: any) {
    const selected = $event.target.files[0];

    if (selected && this.parentItem) {
      this.underUploadItem = [selected.name];
      const upload$ = this.storagehub.uploadFile(this.parentItem.item.id, selected.name, selected);
      upload$.subscribe({
        next: () => this.loadDocuments(),
        error: () => this.underUploadItem = [],
        complete: () => this.underUploadItem = []

      });
    }

  }

  async createFolder() {
    var createFolderAction: CreateFolderAction = new CreateFolderAction();
    if (this.parentItem)
      this.actionHandler(createFolderAction, this.parentItem);
  }

  async presentActionSheet(item: WSItem) {
    var buttons: ActionSheetButton<any>[] = [];
    Actions.getActionsPerType(item.type).forEach(action => buttons.push({
      text: action.getName(),
      data: {
        action: action.getName(),
      },
      role: action.getActionType(),
      handler: () => this.actionHandler(action, item)
    }));

    buttons.push({
      text: 'Cancel',
      role: 'cancel',
      data: {
        action: 'cancel',
      },
    });

    const actionSheet = await this.actionSheetCtrl.create({
      header: `${item.item.title}`,
      mode: 'ios',
      translucent: true,
      buttons: buttons,
      cssClass: 'my-custom-class'
    });

    await actionSheet.present();
    const result = await actionSheet.onDidDismiss();
  }

  async presentAlertControl(options: AlertOptions) {
    let alert = await this.alertCtrl.create(options);
    await alert.present();
  }

  async presentModal(options: ModalOptions) {
    let modal = await this.modalCtrl.create(options);
    await modal.present();
  }

  async presentToast(text: string) {
    const toast = await this.toastController.create({
      message: text,
      duration: 1500
    });
    await toast.present();
  }

  async actionHandler(action: Action, item: WSItem) {
    var alertOptions: undefined | AlertOptions = action.getAlertOptions(item, this.storagehub, () => this.loadDocuments());
    if (alertOptions) {
      await this.presentAlertControl(alertOptions);
    } else {
      var modalOptions: undefined | ModalOptions = action.getModalOptions(item, this.storagehub,
        () => this.loadDocuments(), (text: string) => this.presentToast(text));
      if (modalOptions)
        await this.presentModal(modalOptions);
      else
        action.actionHandler(item, this.storagehub);
    }
  }

}