import {ChangeDetectionStrategy, Component, OnInit, ViewChild} from '@angular/core';
import {MatTableDataSource} from '@angular/material/table';
import {MatPaginator} from '@angular/material/paginator';
import {MatSort} from '@angular/material/sort';
import {LoggingService, UserService} from '@app/_services';
import {Router} from '@angular/router';
import {exportCsv} from '@app/_helpers';
import {strip0x} from '@src/assets/js/ethtx/dist/hex';
import {first} from 'rxjs/operators';
import {environment} from '@src/environments/environment';
import {AccountDetails} from '@app/_models';
import {Observable, of} from 'rxjs';


@Component({
  selector: 'app-accounts',
  templateUrl: './accounts.component.html',
  styleUrls: ['./accounts.component.scss'],
  changeDetection: ChangeDetectionStrategy.OnPush
})
export class AccountsComponent implements OnInit {
  dataSource: MatTableDataSource<any>;
  accounts: Array<AccountDetails> = [];
  displayedColumns: Array<string> = ['name', 'phone', 'created', 'balance', 'location'];
  defaultPageSize: number = 10;
  pageSizeOptions: Array<number> = [10, 20, 50, 100];
  accountsType: string = 'all';
  accountTypes: Array<string>;

  @ViewChild(MatPaginator) paginator: MatPaginator;
  @ViewChild(MatSort) sort: MatSort;

  constructor(
    private userService: UserService,
    private router: Router,
    private loggingService: LoggingService
  )
  {
    this.userService = userService;  
  }

  ngOnInit(): void {
    of(this.userService.load())
    this.userService.getAccountTypes().pipe(first()).subscribe(res => this.accountTypes = res);
    this.userService.accountsSubject.subscribe(accounts => {
      this.dataSource = new MatTableDataSource<any>(accounts);
      this.dataSource.paginator = this.paginator;
      this.dataSource.sort = this.sort;
      this.accounts = accounts;
    });
  }

  doFilter(value: string): void {
    this.dataSource.filter = value.trim().toLocaleLowerCase();
  }

  async viewAccount(account): Promise<void> {
    await this.router.navigateByUrl(`/accounts/${strip0x(account.identities.evm[`bloxberg:${environment.bloxbergChainId}`][0])}`);
  }

  filterAccounts(): void {
    if (this.accountsType === 'all') {
      this.userService.accountsSubject.subscribe(accounts => {
        this.dataSource.data = accounts;
        this.accounts = accounts;
      });
    } else {
      this.dataSource.data = this.accounts.filter(account => account.type === this.accountsType);
    }
  }

  refreshPaginator(): void {
    if (!this.dataSource.paginator) {
      this.dataSource.paginator = this.paginator;
    }

    this.paginator._changePageSize(this.paginator.pageSize);
  }

  downloadCsv(): void {
    exportCsv(this.accounts, 'accounts');
  }
}