files.component.ts

import { LoginData } from './../../app.interfaces';
import { MainDataService } from './../../maindata.service';
import { ServerError } from './../../backend.service';
import { WorkspaceDataService } from './../workspacedata.service';
import { GetFileResponseData, CheckWorkspaceResponseData } from './../workspace.interfaces';
import { ConfirmDialogComponent, ConfirmDialogData, MessageDialogComponent,
  MessageDialogData, MessageType } from '../../iqb-common';
import { DataSource } from '@angular/cdk/collections';
import { Observable, BehaviorSubject, Subscription, merge } from 'rxjs';
import { MatTableDataSource } from '@angular/material/table';
import { MatSnackBar } from '@angular/material';
import { BackendService } from '../backend.service';
import { Input, Output, EventEmitter, Component, OnInit, Inject, ElementRef, OnDestroy } from '@angular/core';
import { NgModule, ViewChild } from '@angular/core';
import { MatSort, MatDialog } from '@angular/material';
import { HttpEventType, HttpErrorResponse, HttpEvent } from '@angular/common/http';
import { IqbFilesUploadQueueComponent, IqbFilesUploadInputForDirective } from '../../iqb-files';


@Component({
  templateUrl: './files.component.html',
  styleUrls: ['./files.component.css']
})
export class FilesComponent implements OnInit, OnDestroy {
  public serverfiles: MatTableDataSource<GetFileResponseData>;
  public displayedColumns = ['checked', 'filename', 'typelabel', 'filesize', 'filedatetime'];
  public uploadUrl = '';
  public fileNameAlias = 'fileforvo';
  public dataLoading = false;
  private logindataSubscription: Subscription = null;

  // for workspace-check
  public checkErrors = [];
  public checkWarnings = [];
  public checkInfos = [];

  @ViewChild(MatSort) sort: MatSort;

  constructor(
    @Inject('SERVER_URL') private serverUrl: string,
    private bs: BackendService,
    private mds: MainDataService,
    private wds: WorkspaceDataService,
    public confirmDialog: MatDialog,
    public messsageDialog: MatDialog,
    public snackBar: MatSnackBar
  ) {
    this.uploadUrl = this.serverUrl + 'php_admin/uploadFile.php';
  }

  ngOnInit() {
    this.logindataSubscription = this.mds.loginData$.subscribe(ld => {
        const ws = this.wds.ws;
        let at = ld ? ld.admintoken : '';
        this.updateFileList((ws <= 0) || (at.length === 0));
    });
  }

  // ***********************************************************************************
  checkAll(isChecked: boolean) {
    this.serverfiles.data.forEach(element => {
      element.isChecked = isChecked;
    });
  }

  // ***********************************************************************************
  deleteFiles() {
    this.checkErrors = [];
    this.checkWarnings = [];
    this.checkInfos = [];

    const filesToDelete = [];
    this.serverfiles.data.forEach(element => {
      if (element.isChecked) {
        filesToDelete.push(element.type + '::' + element.filename);
      }
    });

    if (filesToDelete.length > 0) {
      let prompt = 'Sie haben ';
      if (filesToDelete.length > 1) {
        prompt = prompt + filesToDelete.length + ' Dateien ausgewählt. Sollen';
      } else {
        prompt = prompt + ' eine Datei ausgewählt. Soll';
      }
      const dialogRef = this.confirmDialog.open(ConfirmDialogComponent, {
        width: '400px',
        data: <ConfirmDialogData>{
          title: 'Löschen von Dateien',
          content: prompt + ' diese gelöscht werden?',
          confirmbuttonlabel: 'Löschen'
        }
      });

      dialogRef.afterClosed().subscribe(result => {
        if (result !== false) {
          // =========================================================
          this.dataLoading = true;
          this.bs.deleteFiles(filesToDelete).subscribe(deletefilesresponse => {
            if (deletefilesresponse instanceof ServerError) {
              this.wds.setNewErrorMsg(deletefilesresponse as ServerError);
            } else {
              const deletefilesresponseOk = deletefilesresponse as string;
              if ((deletefilesresponseOk.length > 5) && (deletefilesresponseOk.substr(0, 2) === 'e:')) {
                this.snackBar.open(deletefilesresponseOk.substr(2), 'Fehler', {duration: 1000});
              } else {
                this.snackBar.open(deletefilesresponseOk, '', {duration: 1000});
                this.updateFileList();
              }
              this.wds.setNewErrorMsg();
            }
          });
          // =========================================================
        }
      });
    } else {
      this.messsageDialog.open(MessageDialogComponent, {
        width: '400px',
        data: <MessageDialogData>{
          title: 'Löschen von Dateien',
          content: 'Bitte markieren Sie erst Dateien!',
          type: MessageType.error
        }
      });
    }

  }

  // ***********************************************************************************
  updateFileList(empty = false) {
    this.checkErrors = [];
    this.checkWarnings = [];
    this.checkInfos = [];

    if (empty) {
      this.serverfiles = new MatTableDataSource([]);
    } else {
      this.dataLoading = true;
      this.bs.getFiles().subscribe(
        (filedataresponse: GetFileResponseData[]) => {
          this.serverfiles = new MatTableDataSource(filedataresponse);
          this.serverfiles.sort = this.sort;
          this.dataLoading = false;
          this.wds.setNewErrorMsg();
        }, (err: ServerError) => {
          this.wds.setNewErrorMsg(err);
          this.dataLoading = false;
        }
      );
    }
  }

  // ***********************************************************************************
  getDownloadRef(element: GetFileResponseData): string {
    return this.serverUrl
        + 'admin/php_admin/getFile.php?t=' + element.type
        + '&fn=' + element.filename;
  }

  checkWorkspace() {
    this.checkErrors = [];
    this.checkWarnings = [];
    this.checkInfos = [];

    this.dataLoading = true;
    this.bs.checkWorkspace().subscribe(
      (checkResponse: CheckWorkspaceResponseData) => {
        // this.serverfiles = new MatTableDataSource(filedataresponse);
        // this.serverfiles.sort = this.sort;
        this.checkErrors = checkResponse.errors;
        this.checkWarnings = checkResponse.warnings;
        this.checkInfos = checkResponse.infos;
        this.wds.setNewErrorMsg();

        this.dataLoading = false;
      }, (err: ServerError) => {
        this.wds.setNewErrorMsg(err);
        this.dataLoading = false;
      }
    );
  }

  // % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % %
  ngOnDestroy() {
    if (this.logindataSubscription !== null) {
      this.logindataSubscription.unsubscribe();
    }
  }
}