export type ToastKind = 'info' | 'error' | 'success';
export type Toast = { id: number; kind: ToastKind; message: string };

class ToastStore {
  toasts = $state<Toast[]>([]);
  private nextId = 1;
  private readonly dismissMs = 3000;

  private push(kind: ToastKind, message: string): number {
    const id = this.nextId++;
    this.toasts = [...this.toasts, { id, kind, message }];
    setTimeout(() => this.dismiss(id), this.dismissMs);
    return id;
  }

  info(message: string): number { return this.push('info', message); }
  error(message: string): number { return this.push('error', message); }
  success(message: string): number { return this.push('success', message); }

  dismiss(id: number): void {
    this.toasts = this.toasts.filter((t) => t.id !== id);
  }
}

export const toastStore = new ToastStore();