import { Injectable } from '@angular/core';
import { MatSnackBar } from '@angular/material/snack-bar';

@Injectable({
  providedIn: 'root'
})
export class NotificationService {

  constructor(private snackBar: MatSnackBar) {}

  showSuccess(message: string, duration: number = 3000): void {
    this.snackBar.open(message, 'Close', {
      duration,
      panelClass: ['success-snackbar'],
      horizontalPosition: 'center',
      verticalPosition: 'bottom'
    });
  }

  showError(message: string, duration: number = 5000): void {
    this.snackBar.open(message, 'Close', {
      duration,
      panelClass: ['error-snackbar'],
      horizontalPosition: 'center',
      verticalPosition: 'bottom'
    });
  }

  showInfo(message: string, duration: number = 3000): void {
    this.snackBar.open(message, 'Close', {
      duration,
      panelClass: ['info-snackbar'],
      horizontalPosition: 'center',
      verticalPosition: 'bottom'
    });
  }

  showWarning(message: string, duration: number = 4000): void {
    this.snackBar.open(message, 'Close', {
      duration,
      panelClass: ['warning-snackbar'],
      horizontalPosition: 'center',
      verticalPosition: 'bottom'
    });
  }

  showConfirmation(message: string, action: string = 'Confirm'): Promise<boolean> {
    const snackBarRef = this.snackBar.open(message, action, {
      duration: 10000,
      panelClass: ['confirmation-snackbar'],
      horizontalPosition: 'center',
      verticalPosition: 'bottom'
    });

    return new Promise((resolve) => {
      snackBarRef.onAction().subscribe(() => resolve(true));
      snackBarRef.afterDismissed().subscribe((info) => {
        if (!info.dismissedByAction) {
          resolve(false);
        }
      });
    });
  }
}