5 files changed, 22 insertions, 226 deletions
diff --git a/src/features/counter/Counter.jsx b/src/features/counter/Counter.jsx
index 37d866d..d589bf9 100644
--- a/src/features/counter/Counter.jsx
+++ b/src/features/counter/Counter.jsx
@@ -1,67 +1,28 @@
-import React, { useState } from "react";
-import { useSelector, useDispatch } from "react-redux";
-import {
-  decrement,
-  increment,
-  incrementByAmount,
-  incrementAsync,
-  incrementIfOdd,
-  selectCount,
-} from "./counterSlice";
-import styles from "./Counter.module.css";
+import React from 'react'
+import { useSelector, useDispatch } from 'react-redux'
+import { decrement, increment } from './counterSlice'
 
 export function Counter() {
-  const count = useSelector(selectCount);
-  const dispatch = useDispatch();
-  const [incrementAmount, setIncrementAmount] = useState("2");
-
-  const incrementValue = Number(incrementAmount) || 0;
+  const count = useSelector((state) => state.counter.value)
+  const dispatch = useDispatch()
 
   return (
     <div>
-      <div className={styles.row}>
-        <button
-          className={styles.button}
-          aria-label="Decrement value"
-          onClick={() => dispatch(decrement())}
-        >
-          -
-        </button>
-        <span className={styles.value}>{count}</span>
+      <div>
         <button
-          className={styles.button}
           aria-label="Increment value"
           onClick={() => dispatch(increment())}
         >
-          +
+          Increment
         </button>
-      </div>
-      <div className={styles.row}>
-        <input
-          className={styles.textbox}
-          aria-label="Set increment amount"
-          value={incrementAmount}
-          onChange={(e) => setIncrementAmount(e.target.value)}
-        />
+        <span>{count}</span>
         <button
-          className={styles.button}
-          onClick={() => dispatch(incrementByAmount(incrementValue))}
-        >
-          Add Amount
-        </button>
-        <button
-          className={styles.asyncButton}
-          onClick={() => dispatch(incrementAsync(incrementValue))}
-        >
-          Add Async
-        </button>
-        <button
-          className={styles.button}
-          onClick={() => dispatch(incrementIfOdd(incrementValue))}
+          aria-label="Decrement value"
+          onClick={() => dispatch(decrement())}
         >
-          Add If Odd
+          Decrement
         </button>
       </div>
     </div>
-  );
+  )
 }
diff --git a/src/features/counter/Counter.module.css b/src/features/counter/Counter.module.css
deleted file mode 100644
index 9e70f8e..0000000
--- a/src/features/counter/Counter.module.css
+++ /dev/null
@@ -1,78 +0,0 @@
-.row {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-}
-
-.row > button {
-  margin-left: 4px;
-  margin-right: 8px;
-}
-.row:not(:last-child) {
-  margin-bottom: 16px;
-}
-
-.value {
-  font-size: 78px;
-  padding-left: 16px;
-  padding-right: 16px;
-  margin-top: 2px;
-  font-family: "Courier New", Courier, monospace;
-}
-
-.button {
-  appearance: none;
-  background: none;
-  font-size: 32px;
-  padding-left: 12px;
-  padding-right: 12px;
-  outline: none;
-  border: 2px solid transparent;
-  color: rgb(112, 76, 182);
-  padding-bottom: 4px;
-  cursor: pointer;
-  background-color: rgba(112, 76, 182, 0.1);
-  border-radius: 2px;
-  transition: all 0.15s;
-}
-
-.textbox {
-  font-size: 32px;
-  padding: 2px;
-  width: 64px;
-  text-align: center;
-  margin-right: 4px;
-}
-
-.button:hover,
-.button:focus {
-  border: 2px solid rgba(112, 76, 182, 0.4);
-}
-
-.button:active {
-  background-color: rgba(112, 76, 182, 0.2);
-}
-
-.asyncButton {
-  composes: button;
-  position: relative;
-}
-
-.asyncButton:after {
-  content: "";
-  background-color: rgba(112, 76, 182, 0.15);
-  display: block;
-  position: absolute;
-  width: 100%;
-  height: 100%;
-  left: 0;
-  top: 0;
-  opacity: 0;
-  transition: width 1s linear, opacity 0.5s ease 1s;
-}
-
-.asyncButton:active:after {
-  width: 0%;
-  opacity: 1;
-  transition: 0s;
-}
diff --git a/src/features/counter/counterAPI.js b/src/features/counter/counterAPI.js
deleted file mode 100644
index cc9b4a4..0000000
--- a/src/features/counter/counterAPI.js
+++ /dev/null
@@ -1,6 +0,0 @@
-// A mock function to mimic making an async request for data
-export function fetchCount(amount = 1) {
-  return new Promise((resolve) =>
-    setTimeout(() => resolve({ data: amount }), 500)
-  );
-}
diff --git a/src/features/counter/counterSlice.js b/src/features/counter/counterSlice.js
index a9441ac..4cb9993 100644
--- a/src/features/counter/counterSlice.js
+++ b/src/features/counter/counterSlice.js
@@ -1,29 +1,10 @@
-import { createAsyncThunk, createSlice } from "@reduxjs/toolkit";
-import { fetchCount } from "./counterAPI";
-
-const initialState = {
-  value: 0,
-  status: "idle",
-};
-
-// The function below is called a thunk and allows us to perform async logic. It
-// can be dispatched like a regular action: `dispatch(incrementAsync(10))`. This
-// will call the thunk with the `dispatch` function as the first argument. Async
-// code can then be executed and other actions can be dispatched. Thunks are
-// typically used to make async requests.
-export const incrementAsync = createAsyncThunk(
-  "counter/fetchCount",
-  async (amount) => {
-    const response = await fetchCount(amount);
-    // The value we return becomes the `fulfilled` action payload
-    return response.data;
-  }
-);
+import { createSlice } from '@reduxjs/toolkit'
 
 export const counterSlice = createSlice({
-  name: "counter",
-  initialState,
-  // The `reducers` field lets us define reducers and generate associated actions
+  name: 'counter',
+  initialState: {
+    value: 0,
+  },
   reducers: {
     increment: (state) => {
       // Redux Toolkit allows us to write "mutating" logic in reducers. It
@@ -34,40 +15,11 @@ export const counterSlice = createSlice({
     },
     decrement: (state) => {
       state.value -= 1;
-    },
-    // Use the PayloadAction type to declare the contents of `action.payload`
-    incrementByAmount: (state, action) => {
-      state.value += action.payload;
-    },
-  },
-  // The `extraReducers` field lets the slice handle actions defined elsewhere,
-  // including actions generated by createAsyncThunk or in other slices.
-  extraReducers: (builder) => {
-    builder
-      .addCase(incrementAsync.pending, (state) => {
-        state.status = "loading";
-      })
-      .addCase(incrementAsync.fulfilled, (state, action) => {
-        state.status = "idle";
-        state.value += action.payload;
-      });
+    }
   },
-});
-
-export const { increment, decrement, incrementByAmount } = counterSlice.actions;
-
-// The function below is called a selector and allows us to select a value from
-// the state. Selectors can also be defined inline where they're used instead of
-// in the slice file. For example: `useSelector((state: RootState) => state.counter.value)`
-export const selectCount = (state) => state.counter.value;
+})
 
-// We can also write thunks by hand, which may contain both sync and async logic.
-// Here's an example of conditionally dispatching actions based on current state.
-export const incrementIfOdd = (amount) => (dispatch, getState) => {
-  const currentValue = selectCount(getState());
-  if (currentValue % 2 === 1) {
-    dispatch(incrementByAmount(amount));
-  }
-};
+// Action creators are generated for each case reducer function
+export const { increment, decrement } = counterSlice.actions
 
-export default counterSlice.reducer;
+export default counterSlice.reducer
diff --git a/src/features/counter/counterSlice.spec.js b/src/features/counter/counterSlice.spec.js
deleted file mode 100644
index 113526b..0000000
--- a/src/features/counter/counterSlice.spec.js
+++ /dev/null
@@ -1,33 +0,0 @@
-import counterReducer, {
-  increment,
-  decrement,
-  incrementByAmount,
-} from "./counterSlice";
-
-describe("counter reducer", () => {
-  const initialState = {
-    value: 3,
-    status: "idle",
-  };
-  it("should handle initial state", () => {
-    expect(counterReducer(undefined, { type: "unknown" })).toEqual({
-      value: 0,
-      status: "idle",
-    });
-  });
-
-  it("should handle increment", () => {
-    const actual = counterReducer(initialState, increment());
-    expect(actual.value).toEqual(4);
-  });
-
-  it("should handle decrement", () => {
-    const actual = counterReducer(initialState, decrement());
-    expect(actual.value).toEqual(2);
-  });
-
-  it("should handle incrementByAmount", () => {
-    const actual = counterReducer(initialState, incrementByAmount(2));
-    expect(actual.value).toEqual(5);
-  });
-});