import Vue from 'vue'
import Vuex from 'vuex'

Vue.use(Vuex)

export default new Vuex.Store({
  //  داده‌های به اشتراک گذاشته شده
  state: {
    count: 0
  },
  // تعریف متدها
  mutations: {
    add(state, payload) {
      // If we get a payload, add it to count
      // Else, just add one to count
      payload ? (state.count += payload) : state.count++;
    },
    subtract(state, payload) {
      payload ? (state.count -= payload) : state.count--;
    }
  }
});

import React, { useState } from 'react';
import { useSelector, useDispatch } from 'react-redux';
import {
  decrement,
  increment,
  incrementByAmount,
  selectCount,
} from './counterSlice';
import styles from './Counter.module.css';

export function Counter() {
  const count = useSelector(selectCount);
  const dispatch = useDispatch();
  const [incrementAmount, setIncrementAmount] = useState(2);

  return (
    <div>
      <div className={styles.row}>
        <button
          className={styles.button}
          aria-label="Increment value"
          onClick={() => dispatch(increment())}
        >
          +
        </button>
        <span className={styles.value}>{count}</span>
        <button
          className={styles.button}
          aria-label="Decrement value"
          onClick={() => dispatch(decrement())}
        >
          -
        </button>
      </div>
      <div className={styles.row}>
        <input
          className={styles.textbox}
          value={incrementAmount}
          onChange={e => setIncrementAmount(e.target.value)}
        />
        <button
          className={styles.button}
          onClick={() =>
            dispatch(
              incrementByAmount({ amount: Number(incrementAmount) || 0 })
            )
          }
        >
          Add Amount
        </button>
      </div>
    </div>
  );
}

import { createSlice } from '@reduxjs/toolkit';

export const slice = createSlice({
  name: 'counter',
  initialState: {
    value: 0,
  },
  reducers: {
    increment: state => {
      // Redux Toolkit allows us to 'mutate' the state. It doesn't actually
      // mutate the state because it uses the immer library, which detects
      // changes to a "draft state" and produces a brand new immutable state
      // based off those changes
      state.value += 1;
    },
    decrement: state => {
      state.value -= 1;
    },
    incrementByAmount: (state, action) => {
      state.value += action.payload.amount;
    },
  },
});

export const selectCount = state => state.counter.value;
export const { increment, decrement, incrementByAmount } = slice.actions;

export default slice.reducer;