import { Injectable, signal } from '@angular/core';

export interface PromptRequest {
  title: string;
  placeholder?: string;
  initial?: string;
  confirmLabel: string;
  onConfirm: (value: string) => void;
}

export interface ConfirmRequest {
  title: string;
  body: string;
  confirmLabel: string;
  destructive?: boolean;
  onConfirm: () => void;
}

export interface ChmodRequest {
  targets: string[]; // display names
  initialMode: number;
  onConfirm: (mode: number) => void;
}

@Injectable({ providedIn: 'root' })
export class DialogsService {
  readonly prompt = signal<PromptRequest | null>(null);
  readonly confirm = signal<ConfirmRequest | null>(null);
  readonly chmod = signal<ChmodRequest | null>(null);

  get anyOpen(): boolean {
    return !!(this.prompt() || this.confirm() || this.chmod());
  }

  closeAll(): void {
    this.prompt.set(null);
    this.confirm.set(null);
    this.chmod.set(null);
  }
}