import { Component, Input, OnInit, QueryList, ViewChild, ViewChildren } from '@angular/core';
import { MatTableDataSource } from '@angular/material/table';
import { MatPaginator } from '@angular/material/paginator';
import Swal from 'sweetalert2/dist/sweetalert2.js'
import { Router } from '@angular/router';
import { ServicesService } from '../../services.service';
import { NgxSpinnerService } from "ngx-spinner";
import { MatSort } from '@angular/material/sort';
import { AuthorizationService } from '../../service/authorization.service';
import { FormBuilder, FormControl, FormGroup, Validators, FormArray } from '@angular/forms';
import { BooksService } from '../../services/books/books.service';
import { ReferenceService } from 'src/app/services/reference/reference.service';
import { SelfpacedService } from 'src/app/services/selfpaced/selfpaced.service';
@Component({
  selector: 'app-books',
  templateUrl: './books.component.html',
  styleUrls: ['./books.component.scss']
})
export class BooksComponent implements OnInit {
  displayedColumns: string[] = ['srno', 'certificate_name', 'book_title', 'actions'];
  dataSource: MatTableDataSource<certificatelist>;
  Search: any
  addAcronyms: boolean = false
  dataSourceReference: MatTableDataSource<ReferenceList>;
  @Input('pagination') pagination: boolean;
  @ViewChild(MatPaginator, { static: false }) set matPaginator(paginator: MatPaginator) {
    if (this.pagination) {
      this.dataSource.paginator = paginator;
    }
  }
  @Input('matpagination') matpagination: boolean;
  @ViewChildren(MatPaginator) set matquePaginator(quespaginator: QueryList<MatPaginator>) {
    if (this.matpagination) {
      this.dataSourceReference.paginator = quespaginator.toArray()[1];
    }
  }
  @ViewChild(MatPaginator, { static: true }) paginator: MatPaginator;
  @ViewChild(MatSort, { static: true }) sort: MatSort;
  @ViewChildren(MatPaginator) quespaginator = new QueryList<MatPaginator>();
  @ViewChildren(MatSort) sortquestion = new QueryList<MatSort>();
  displayedColumnsReference: string[] = ['srno', 'title', 'page_no', 'actions'];
  SearchReference: any;
  book_title: any;
  SelectedCertificate: any;
  id: any;
  IsUpdate = false;
  public CertificateForm: FormGroup;
  Certificatelist = [];
  loglist = [];
  References = [];
  oldAuditValueArray = { "Certificate": "", "Book Name": "" }
  newAuditValueArray = { "Certificate": "", "Book Name": "" }
  auditHistory = "";
  book_img: any;
  constructor(public refService: ReferenceService, public booksService: BooksService, public fb: FormBuilder, public auth: AuthorizationService, public router: Router, public spinner: NgxSpinnerService, public service: ServicesService, public sefpaceService: SelfpacedService) {
    var setlogin = this.auth.isLoggedIn();
    if (!setlogin) {
      this.router.navigate(['/login']);
    }
  }
  closeModal() {
    this.addAcronyms = false
    this.book_title = "";
    this.SelectedCertificate = "";
    this.oldAuditValueArray = { "Certificate": "", "Book Name": "" }
    this.newAuditValueArray = { "Certificate": "", "Book Name": "" }
    this.auditHistory = "";
    this.book_img = "";
  }
  addNewaddAcronyms() {
    this.addAcronyms = true
    this.IsUpdate = false;
  }
  async ngOnInit() {
    this.CertificateForm = this.fb.group({
      book_title: ['', Validators.required],
      SelectedCertificate: ['', Validators.required],
      book_img: new FormControl()
    });
    await this.spinner.show();
    await this.getAllBooks();
    await this.ListCertificate();
  }
  async delete(item) {
    Swal.fire({
      title: 'Are you sure?',
      text: "You want to delete!",
      icon: 'warning',
      showCancelButton: true,
      confirmButtonColor: '#3085d6',
      cancelButtonColor: '#d33',
      confirmButtonText: 'Delete'
    }).then(async (result) => {
      try {
        if (result.value) {
          await this.spinner.show();
          await this.auth.getAuthenticatedUser().getSession(async (err, session) => {
            if (err) {
              await this.spinner.hide();
              this.router.navigate(['/login']);
            }
            else {
              var token = ''
              this.service.token = token;
              await this.booksService.DeleteBooks(item.id, token).then(async (value) => {
                if (value[0].status == 200) {
                  var list = JSON.parse(<string>value[0].json);
                  this.auth.getAuthenticatedUser().getSession(async (err, session) => {
                    if (err) {
                      await this.spinner.hide();
                      this.router.navigate(['/login']);
                    }
                    else {
                      var token = ''
                      var e = window.localStorage.getItem("adminUser");
                      if (e == null || e == undefined || e == "") {
                        e = 'admin';
                      }
                      var desc = "<span> " + item.book_title + "</span> Book is deleted by <span> " + e + "</span>";
                      await this.service.addAdminLogs(desc, "books", item.id, token);
                    }
                  });
                  await this.getAllBooks();
                  await this.spinner.hide();
                  Swal.fire(
                    list.message,
                    'Book has been deleted.',
                    'success'
                  )
                }
                else {
                  var list = JSON.parse(<string>value[0].json);
                  await this.spinner.hide();
                  this.service.ShowError(list.message);
                }
              })
            }
          });
        }
      }
      catch (e) {
        await this.spinner.hide();
      }
    })
  }
  async getAllBooks() {
    try {
      await this.auth.getAuthenticatedUser().getSession(async (err, session) => {
        if (err) {
          await this.spinner.hide();
          this.router.navigate(['/login']);
        }
        else {
          var token = ''
          const users: certificatelist[] = [];
          await this.booksService.GetAllBooks(token).then(async (data) => {
            if (data[0].status == 200) {
              var list = JSON.parse(<string>data[0].json);
              var srno = 0;
              await list.data.forEach(async (element) => {
                srno = srno + 1;
                await users.push({
                  "srno": srno,
                  "id": element.id,
                  "certificate_name": element.certificate.certificate_name,
                  "certi_id": element.certi_id,
                  "book_title": element.book_title,
                  "book_img": element.book_img,
                  "createdAt": element.createdAt,
                  "updatedAt": element.updatedAt
                })
              });
              this.dataSource = new MatTableDataSource(users);
              this.dataSource.sort = this.sort;
              this.dataSource.paginator = this.paginator;
              this.filter();
              this.pagination = true;
              await this.spinner.hide();
            }
          })
        }
      });
    }
    catch (e) {
      this.service.ShowError(e.meassage);
      await this.spinner.hide();
    }
  }
  async filter() {
    this.dataSource.filter = this.Search;
    if (this.pagination) {
      this.dataSource.paginator._changePageSize(this.dataSource.paginator.pageSize);
    }
  }
  async filterReference() {
    this.dataSourceReference.filter = this.SearchReference;
    if (this.pagination) {
      this.dataSourceReference.paginator._changePageSize(this.dataSourceReference.paginator.pageSize);
    }
  }
  async getReferenceByBook(book_id, token) {
    const users: ReferenceList[] = [];
    await this.refService.getReferenceByBook(book_id, token).then(async (value) => {
      if (value[0].status == 200) {
        var list = JSON.parse(<string>value[0].json);
        var srno = 0;
        await list.data.forEach(async (element) => {
          srno = srno + 1;
          await users.push({
            "srno": srno,
            "id": element.id,
            "title": element.title,
            "page_no": element.page_no
          })
        });
        this.dataSourceReference = new MatTableDataSource(users);
        this.dataSourceReference.paginator = this.quespaginator.toArray()[1];
        this.dataSourceReference.sort = this.sortquestion.toArray()[1];
        this.matpagination = true;
      }
      else {
        this.service.ShowError(list.message);
      }
    }, err => {
      this.spinner.hide();
    })
  }
  async edit(item) {
    this.loglist = [];
    await this.spinner.show();
    await this.auth.getAuthenticatedUser().getSession(async (err, session) => {
      if (err) {
        await this.spinner.hide();
        this.router.navigate(['/login']);
      }
      else {
        var token = ''
        await this.getReferenceByBook(item.id, token);
        await this.service.get_logs("books", item.id, token).then(async (value) => {
          if (value[0].status == 200) {
            var list = JSON.parse(<string>value[0].json);
            this.loglist = list.data;
            await this.spinner.hide();
          }
          else {
            var list = JSON.parse(<string>value[0].json);
            await this.spinner.hide();
            this.service.ShowError(list.message);
          }
        }, err => {
          this.spinner.hide();
        })
      }
    })
    this.id = item.id;
    this.book_title = item.book_title;
    this.SelectedCertificate = item.certi_id;
    this.book_img = item.book_img;
    this.IsUpdate = true;
    this.addAcronyms = true;
    this.oldAuditValueArray = { "Certificate": this.Certificatelist.find(x => x.id == this.SelectedCertificate) ? this.Certificatelist.find(x => x.id == this.SelectedCertificate).certificate_name : '', "Book Name": this.book_title }

  }
  async onSubmit() {
    this.markFormTouched(this.CertificateForm);
    if (this.CertificateForm.valid) {
      await this.spinner.show();
      await this.auth.getAuthenticatedUser().getSession(async (err, session) => {
        if (err) {
          await this.spinner.hide();
          this.router.navigate(['/login']);
        }
        else {
          var token = ''
          await this.booksService.AddBooks(this.SelectedCertificate, this.book_title, this.book_img, token).then(async (value) => {
            if (value[0].status == 200) {
              var list = JSON.parse(<string>value[0].json);
              this.auth.getAuthenticatedUser().getSession(async (err, session) => {
                if (err) {
                  await this.spinner.hide();
                  this.router.navigate(['/login']);
                }
                else {
                  var token = ''
                  var e = window.localStorage.getItem("adminUser");
                  if (e == null || e == undefined || e == "") {
                    e = 'admin';
                  }
                  var desc = "<span> " + this.book_title + "</span> Book is added by <span> " + e + "</span>";
                  await this.service.addAdminLogs(desc, "books", list.data.id, token);
                }
              });
              this.addAcronyms = false;
              this.IsUpdate = false;
              this.closeModal();
              await this.getAllBooks();
              await this.spinner.hide();
              this.service.ShowSuccess("Book Added Successfully");
            }
            else {
              var list = JSON.parse(<string>value[0].json);
              await this.spinner.hide();
              this.service.ShowError(list.message);
            }
          })
        }
      });
    }
  }
  async UpdateCertificate() {
    this.markFormTouched(this.CertificateForm);
    if (this.CertificateForm.valid) {
      await this.spinner.show();
      await this.auth.getAuthenticatedUser().getSession(async (err, session) => {
        if (err) {
          await this.spinner.hide();
          this.router.navigate(['/login']);
        }
        else {
          var token = ''
          await this.booksService.UpdateBooks(this.id, this.SelectedCertificate, this.book_title, this.book_img, token).then(async (value) => {
            if (value[0].status == 200) {
              var list = JSON.parse(<string>value[0].json);
              this.auth.getAuthenticatedUser().getSession(async (err, session) => {
                if (err) {
                  await this.spinner.hide();
                  this.router.navigate(['/login']);
                }
                else {
                  var token = ''
                  var e = window.localStorage.getItem("adminUser");
                  if (e == null || e == undefined || e == "") {
                    e = 'admin';
                  }
                  this.newAuditValueArray = { "Certificate": this.Certificatelist.find(x => x.id == this.SelectedCertificate) ? this.Certificatelist.find(x => x.id == this.SelectedCertificate).certificate_name : '', "Book Name": this.book_title }
                  var audit = this.auth.compareAuditHist(this.oldAuditValueArray, this.newAuditValueArray);
                  var desc = audit;
                  await this.service.addAdminLogs(desc, "books", this.id, token);
                }
              });
              this.closeModal();
              this.addAcronyms = false;
              this.IsUpdate = false;
              await this.getAllBooks();
              await this.spinner.hide();
              this.service.ShowSuccess("Book Updated Successfully");
            }
            else {
              var list = JSON.parse(<string>value[0].json);
              await this.spinner.hide();
              this.service.ShowError(list.message);
            }
          })
        }
      });
    }
  }
  async ListCertificate() {
    await this.auth.getAuthenticatedUser().getSession(async (err, session) => {
      if (err) {
        await this.spinner.hide();
        this.router.navigate(['/login']);
      }
      else {
        var token = ''
        this.spinner.show();
        await this.service.ListCertificate(token).then(async (data) => {
          if (data[0].status == 200) {
            var list = JSON.parse(<string>data[0].json);
            this.Certificatelist = list.data;
            this.SelectedCertificate = "";
          }
        })
        this.spinner.hide();
      }
    });
  }
  markFormTouched(group: FormGroup | FormArray) {
    Object.keys(group.controls).forEach((key: string) => {
      const control = group.controls[key];
      if (control instanceof FormGroup || control instanceof FormArray) { control.markAsTouched(); this.markFormTouched(control); }
      else { control.markAsTouched(); };
    });
  };
  editReference(item) {
    let data = btoa(JSON.stringify(item.id));
    this.router.navigate([`main/references/${data}`]);
  }
  async deleteReference(item) {
    Swal.fire({
      title: 'Are you sure?',
      text: "Delete this reference!",
      icon: 'warning',
      showCancelButton: true,
      confirmButtonColor: '#3085d6',
      cancelButtonColor: '#d33',
      confirmButtonText: 'Delete'
    }).then(async (result) => {
      if (result.value) {
        this.spinner.show();
        this.auth.getAuthenticatedUser().getSession(async (err, session) => {
          if (err) {
            await this.spinner.hide();
            this.router.navigate(['/login']);
          }
          else {
            var token = ''
            await this.refService.DeleteReference(item.id, token).then(async (data) => {
              if (data[0].status == 200) {
                this.auth.getAuthenticatedUser().getSession(async (err, session) => {
                  if (err) {
                    await this.spinner.hide();
                    this.router.navigate(['/login']);
                  }
                  else {
                    var token = ''
                    var e = window.localStorage.getItem("adminUser");
                    if (e == null || e == undefined || e == "") {
                      e = 'admin';
                    }
                    var desc = "<span> " + item.web_link + "</span> Reference is deleted by <span> " + e + "</span>";
                    await this.service.addAdminLogs(desc, "references", item.id, token);
                  }
                });
                this.addAcronyms = false;
                this.IsUpdate = false;
                this.service.ShowSuccess("Reference deleted successfully");
              }
            });
          }
        })
        this.spinner.hide();
      }
    })
  }
  handleFileSelect(evt) {
    let me = this;
    let file = evt.target.files[0];
    let mime = "data:" + file.type + ";base64,";
    let reader = new FileReader();
    reader.readAsDataURL(file);
    reader.onload = function () {
      me.uploadFile(reader.result, evt.target.id);
    };
    reader.onerror = function (error) {
      console.log('Error: ', error);
    };
  }
  async uploadFile(image, model) {
    this.spinner.show();
    await this.auth.getAuthenticatedUser().getSession(async (err, session) => {
      if (err) {
        await this.spinner.hide();
        this.router.navigate(['/login']);
      }
      else {
        var token = ''
        await this.sefpaceService.uploadFile(image, token).then(async (imgresponse) => {
          if (imgresponse[0].status == 200) {
            var imglist = JSON.parse(<string>imgresponse[0].json);
            this.book_img = imglist.data;
            this.spinner.hide();
          } else {
            this.spinner.hide();
          }
        })
      }
    })
  }
}
export interface certificatelist {
  srno: number;
  id: string;
  certificate_name: string
  certi_id: string;
  book_title: string;
  book_img: string;
  createdAt: string;
  updatedAt: string;
}
export interface ReferenceList {
  srno: number;
  id: string;
  title: string
  page_no: string;
}