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import { useState, useCallback } from 'react';

type UseAdvancedStateProps<T> = {
  [K in keyof T]: T[K];
};

type UseAdvancedStateReturn<T> = {
  values: {
    [K in keyof T]: T[K];
  };
  onChange: {
    [K in keyof T]: (newValue: T[K]) => void;
  };
};

function useAdvancedState<T extends Record<string, any>>(initialState: UseAdvancedStateProps<T>): UseAdvancedStateReturn<T> {
  const [state, setState] = useState(initialState);

  const handlers = Object.keys(initialState).reduce((acc, key) => {
    acc[key as keyof T] = useCallback(
      (newValue: any) => {
        setState(prevState => ({
          ...prevState,
          [key]: newValue,
        }));
      },
      [key]
    );
    return acc;
  }, {} as UseAdvancedStateReturn<T>['onChange']);

  return {
    values: state,
    onChange: handlers,
  };
}



const { values, onChange } = useAdvancedState({
  name: '',
  age: 0,
});

console.log(values.name);
console.log(values.age);


onChange.name('John Doe');
onChange.age(30);