import { Component, Inject, OnDestroy, OnInit, ViewChild } from '@angular/core';
import { MatButtonModule } from '@angular/material/button';
import { MatDialog } from '@angular/material/dialog';
import { MatIconModule } from '@angular/material/icon';
import { MatMenuModule } from '@angular/material/menu';
import { MatSnackBar } from '@angular/material/snack-bar';
import { MatTable, MatTableModule } from '@angular/material/table';
import { MatTooltipModule } from '@angular/material/tooltip';
import { Router } from '@angular/router';
import { CobblerApiService, Distro } from 'cobbler-api';
import { Subject } from 'rxjs';
import { takeUntil } from 'rxjs/operators';
import { DialogItemRenameComponent } from '../../../common/dialog-item-rename/dialog-item-rename.component';
import { UserService } from '../../../services/user.service';
import Utils from '../../../utils';
import { DistroCreateComponent } from '../create/distro-create.component';

@Component({
  selector: 'cobbler-distro-overview',
  templateUrl: './distros-overview.component.html',
  styleUrls: ['./distros-overview.component.scss'],
  standalone: true,
  imports: [
    MatButtonModule,
    MatTableModule,
    MatIconModule,
    MatMenuModule,
    MatTooltipModule,
  ],
})
export class DistrosOverviewComponent implements OnInit, OnDestroy {
  // Unsubscribe
  private ngUnsubscribe = new Subject<void>();

  // Table
  displayedColumns: string[] = ['name', 'breed', 'os_version', 'actions'];
  dataSource: Array<Distro> = [];

  @ViewChild(MatTable) table: MatTable<Distro>;

  constructor(
    public userService: UserService,
    private cobblerApiService: CobblerApiService,
    private _snackBar: MatSnackBar,
    private router: Router,
    @Inject(MatDialog) readonly dialog: MatDialog,
  ) {}

  ngOnInit(): void {
    this.retrieveDistros();
  }

  ngOnDestroy(): void {
    this.ngUnsubscribe.next();
    this.ngUnsubscribe.complete();
  }

  private retrieveDistros(): void {
    this.cobblerApiService
      .get_distros()
      .pipe(takeUntil(this.ngUnsubscribe))
      .subscribe({
        next: (value) => {
          this.dataSource = value;
        },
        error: (error) => {
          // HTML encode the error message since it originates from XML
          this._snackBar.open(Utils.toHTML(error.message), 'Close');
        },
      });
  }

  addDistro(): void {
    const dialogRef = this.dialog.open(DistroCreateComponent, { width: '40%' });
    dialogRef.afterClosed().subscribe((result) => {
      if (typeof result === 'string') {
        this.router.navigate(['/items', 'distro', result]);
      }
    });
  }

  showDistro(uid: string, name: string): void {
    this.router.navigate(['/items', 'distro', name]);
  }

  renameDistro(uid: string, name: string): void {
    const dialogRef = this.dialog.open(DialogItemRenameComponent, {
      data: {
        itemType: 'Distro',
        itemName: name,
        itemUid: uid,
      },
    });

    dialogRef.afterClosed().subscribe((newItemName) => {
      if (newItemName === undefined) {
        // Cancel means we don't need to rename the distro
        return;
      }
      this.cobblerApiService
        .get_distro_handle(name, this.userService.token)
        .pipe(takeUntil(this.ngUnsubscribe))
        .subscribe({
          next: (distroHandle) => {
            this.cobblerApiService
              .rename_distro(distroHandle, newItemName, this.userService.token)
              .pipe(takeUntil(this.ngUnsubscribe))
              .subscribe({
                next: (value) => {
                  this.retrieveDistros();
                },
                error: (error) => {
                  // HTML encode the error message since it originates from XML
                  this._snackBar.open(Utils.toHTML(error.message), 'Close');
                },
              });
          },
          error: (error) => {
            // HTML encode the error message since it originates from XML
            this._snackBar.open(Utils.toHTML(error.message), 'Close');
          },
        });
    });
  }

  deleteDistro(uid: string, name: string): void {
    this.cobblerApiService
      .remove_distro(name, this.userService.token, false)
      .pipe(takeUntil(this.ngUnsubscribe))
      .subscribe({
        next: (value) => {
          this.retrieveDistros();
        },
        error: (error) => {
          // HTML encode the error message since it originates from XML
          this._snackBar.open(Utils.toHTML(error.message), 'Close');
        },
      });
  }
}