/* eslint-disable @typescript-eslint/member-ordering */
import {
  Component,
  HostListener,
  inject,
  output,
  signal
} from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';
import { Router } from '@angular/router';
import { Store } from '@ngrx/store';
import { NgIcon, provideIcons } from '@ng-icons/core';
import { lucideChevronDown, lucideChevronUp } from '@ng-icons/lucide';

import { RoomsActions } from '../../../../store/rooms/rooms.actions';
import { ServerDirectoryFacade } from '../../application/facades/server-directory.facade';
import { ThemeNodeDirective } from '../../../theme';
import { ViewportService } from '../../../../core/platform';
import { BottomSheetComponent, ModalBackdropComponent } from '../../../../shared';
import { CATEGORY_PRESETS, ServerCategoryPreset } from '../create-server/create-server.component';

/**
 * Modal presentation of the server-creation form. Mirrors the dedicated
 * `/create-server` page but is rendered as a Toju modal (desktop) / bottom sheet
 * (mobile) so it can be opened straight from the servers rail. Emits `created`
 * once a room creation has been dispatched and `cancelled` when dismissed.
 */
@Component({
  selector: 'app-create-server-dialog',
  standalone: true,
  imports: [
    CommonModule,
    FormsModule,
    NgIcon,
    ThemeNodeDirective,
    BottomSheetComponent,
    ModalBackdropComponent
  ],
  viewProviders: [provideIcons({ lucideChevronDown, lucideChevronUp })],
  templateUrl: './create-server-dialog.component.html',
  host: {
    style: 'display: contents;'
  }
})
export class CreateServerDialogComponent {
  private store = inject(Store);
  private router = inject(Router);
  private serverDirectory = inject(ServerDirectoryFacade);

  readonly isMobile = inject(ViewportService).isMobile;

  readonly created = output<undefined>();
  readonly cancelled = output<undefined>();

  readonly categories = CATEGORY_PRESETS;
  activeEndpoints = this.serverDirectory.activeServers;

  name = signal('');
  description = signal('');
  topic = signal('');
  selectedCategoryId = signal<string | null>(null);
  isPrivate = signal(false);
  password = signal('');
  sourceId = signal('');
  showAdvanced = signal(false);

  constructor() {
    this.sourceId.set(this.activeEndpoints()[0]?.id ?? '');
  }

  /** True when the form has enough to create a server. */
  get canCreate(): boolean {
    return this.name().trim().length > 0 && this.sourceId().length > 0;
  }

  selectCategory(category: ServerCategoryPreset): void {
    if (this.selectedCategoryId() === category.id) {
      this.selectedCategoryId.set(null);
      this.topic.set('');
      return;
    }

    this.selectedCategoryId.set(category.id);
    this.topic.set(category.topic);
  }

  toggleAdvanced(): void {
    this.showAdvanced.update((shown) => !shown);
  }

  @HostListener('document:keydown.escape')
  cancel(): void {
    this.cancelled.emit(undefined);
  }

  create(): void {
    if (!this.canCreate) {
      return;
    }

    const currentUserId = localStorage.getItem('metoyou_currentUserId');

    if (!currentUserId) {
      this.router.navigate(['/login']);
      return;
    }

    this.store.dispatch(
      RoomsActions.createRoom({
        name: this.name().trim(),
        description: this.description().trim() || undefined,
        topic: this.topic().trim() || undefined,
        isPrivate: this.isPrivate(),
        password: this.password().trim() || undefined,
        sourceId: this.sourceId() || undefined
      })
    );

    this.created.emit(undefined);
  }
}