import { ChangeDetectionStrategy, Component, EventEmitter, Input, Output } from '@angular/core';
import { Observable, ReplaySubject } from 'rxjs';
import { filter, map } from 'rxjs/operators';
import { MatTableDataSource } from '@angular/material/table';
import { Condition, Execution, ExecutionTargetType } from '@zitadel/proto/zitadel/action/v2beta/execution_pb';
import { Target } from '@zitadel/proto/zitadel/action/v2beta/target_pb';

@Component({
  selector: 'cnsl-actions-two-actions-table',
  templateUrl: './actions-two-actions-table.component.html',
  styleUrls: ['./actions-two-actions-table.component.scss'],
  changeDetection: ChangeDetectionStrategy.OnPush,
})
export class ActionsTwoActionsTableComponent {
  @Output()
  public readonly refresh = new EventEmitter<void>();

  @Output()
  public readonly delete = new EventEmitter<Execution>();

  @Input({ required: true })
  public set executions(executions: Execution[] | null) {
    this.executions$.next(executions);
  }

  @Input({ required: true })
  public set targets(targets: Target[] | null) {
    this.targets$.next(targets);
  }

  @Output()
  public readonly selected = new EventEmitter<Execution>();

  private readonly executions$ = new ReplaySubject<Execution[] | null>(1);
  private readonly targets$ = new ReplaySubject<Target[] | null>(1);

  protected readonly dataSource$ = this.executions$.pipe(
    filter(Boolean),
    map((keys) => new MatTableDataSource(keys)),
  );

  protected filteredTargetTypes(targets: ExecutionTargetType[]): Observable<Target[]> {
    const targetIds = targets
      .map((t) => t.type)
      .filter((t): t is Extract<ExecutionTargetType['type'], { case: 'target' }> => t.case === 'target')
      .map((t) => t.value);

    return this.targets$.pipe(
      filter(Boolean),
      map((alltargets) => alltargets!.filter((target) => targetIds.includes(target.id))),
    );
  }

  protected filteredIncludeConditions(targets: ExecutionTargetType[]): Condition[] {
    return targets
      .map((t) => t.type)
      .filter((t): t is Extract<ExecutionTargetType['type'], { case: 'include' }> => t.case === 'include')
      .map(({ value }) => value);
  }
}