export type ComputedEvent = {
  name: string;
  newValue: unknown;
  oldValue?: unknown;
  hasOldValue?: boolean;
};

export type ObservableEvent =
  | { type: 'update'; name: string; oldValue: unknown; newValue: unknown }
  | { type: 'array'; name: string; added: unknown[]; removed: unknown[] }
  | {
      type: 'map';
      name: string;
      key: unknown;
      mapType: 'add' | 'delete' | 'update';
      value?: unknown;
      oldValue?: unknown;
    }
  | {
      type: 'set';
      name: string;
      setType: 'add' | 'delete';
      value: unknown;
    };

export type ActionEvent = { name: string; arguments: unknown[] };

export type Logger = {
  logObservable(event: ObservableEvent): void;
  logAction(event: ActionEvent): void;
  logComputed(event: ComputedEvent): void;
};