From a2310a05930d846d296b4a3aa7796eaf832fa62b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=8B=A0=EC=9E=AC=ED=9B=88?= <sjhh0105@naver.com>
Date: Sat, 13 May 2023 01:11:47 +0900
Subject: [PATCH] =?UTF-8?q?=EC=A4=91=EB=B3=B5=20=EC=A0=9C=EA=B1=B0=20?=
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---
 src/components/ToDoItem.js | 224 ++++++++++++++++++-------------------
 1 file changed, 109 insertions(+), 115 deletions(-)

diff --git a/src/components/ToDoItem.js b/src/components/ToDoItem.js
index 3f9fb68..14407f4 100644
--- a/src/components/ToDoItem.js
+++ b/src/components/ToDoItem.js
@@ -1,138 +1,132 @@
-import React, { useEffect, useRef, useState } from 'react';
-import PropTypes from 'prop-types';
+import React, { useEffect, useRef, useState } from "react";
+import PropTypes from "prop-types";
 
 const ToDoItem = ({ todoItem, todoList, setTodoList }) => {
-    const [edited, setEdited] = useState(false);
-    const [newText, setNewTest] = useState(todoItem.text);
+  const [edited, setEdited] = useState(false);
+  const [newText, setNewText] = useState(todoItem.text);
 
-    const editInputRef = useRef(null);
+  const editInputRef = useRef(null);
 
-    useEffect(() => {
-        // edit 모드일때 포커싱을 한다.
-        if (edited) {
-            editInputRef.current.focus();
-        }
-    }, [edited]);
+  useEffect(() => {
+    // edit 모드일때 포커싱을 한다.
+    if (edited) {
+      editInputRef.current.focus();
+    }
+  }, [edited]);
 
-    const onChangeCheckbox = () => {
-        const nextTodoList = todoList.map((item) => ({
-            ...item,
-            // id 값이 같은 항목의 checked 값을 Toggle 함
-            checked: item.id === todoItem.id ? !item.checked : item.checked,
-        }));
-
-        setTodoList(nextTodoList);
-    };
+  const updateTodoList = (update) => {
+    setTodoList(
+      todoList.map((item) =>
+        item.id === todoItem.id ? { ...item, ...update(item) } : item
+      )
+    );
+  };
 
-    const onClickEditButton = () => {
-        setEdited(true);
-    };
+  const onChangeCheckbox = () => {
+    updateTodoList((item) => ({ checked: !item.checked }));
+  };
 
-    const onChangeEditInput = (e) => {
-        setNewTest(e.target.value);
-    };
+  const onClickEditButton = () => {
+    setEdited(true);
+  };
 
-    const onClickSubmitButton = (e) => {
-        if (e.key === 'Enter') {
-            const nextTodoList = todoList.map((item) => ({
-                ...item,
-                text: item.id === todoItem.id ? newText : item.text, // 새로운 아이템 내용을 넣어줌
-            }));
-            setTodoList(nextTodoList);
+  const onChangeEditInput = (e) => {
+    setNewText(e.target.value);
+  };
 
-            setEdited(false);
-        }
-    };
+  const onClickSubmitButton = (e) => {
+    if (e.type === "keypress" && e.key !== "Enter") {
+      return;
+    }
 
-    const onClickDeleteButton = () => {
-        if (window.confirm('정말로 지우실건가요?')) {
-            const nextTodoList = todoList.map((item) => ({
-                ...item,
-                deleted: item.id === todoItem.id ? true : item.deleted,
-            }));
+    updateTodoList(() => ({ text: newText }));
+    setEdited(false);
+  };
 
-            setTodoList(nextTodoList);
-        }
-    };
+  const onClickDeleteButton = () => {
+    if (window.confirm("정말로 지우실건가요?")) {
+      updateTodoList(() => ({ deleted: true }));
+    }
+  };
 
-    return (
-        <li className="todoapp__item">
-            {/* 아이템 완료 체크 / 체크 해제를 위한 체크박스 */}
-            <input
-                type="checkbox"
-                className="todoapp__item-checkbox"
-                checked={todoItem.checked}
-                onChange={onChangeCheckbox}
-            />
-            {
-                // 아이템 내용
-                edited ? (
-                    <input
-                        type="text"
-                        className="todoapp__item-edit-input"
-                        value={newText}
-                        ref={editInputRef}
-                        onChange={onChangeEditInput}
-                        onKeyPress={onClickSubmitButton}
-                    />
-                ) : (
-                    <span
-                        className={`todoapp__item-ctx ${
-                            todoItem.checked ? 'todoapp__item-ctx-checked' : ''
-                        }`}
-                    >
+  return (
+    <li className="todoapp__item">
+      {/* 아이템 완료 체크 / 체크 해제를 위한 체크박스 */}
+      <input
+        type="checkbox"
+        className="todoapp__item-checkbox"
+        checked={todoItem.checked}
+        onChange={onChangeCheckbox}
+      />
+      {
+        // 아이템 내용
+        edited ? (
+          <input
+            type="text"
+            className="todoapp__item-edit-input"
+            value={newText}
+            ref={editInputRef}
+            onChange={onChangeEditInput}
+            onKeyPress={onClickSubmitButton}
+          />
+        ) : (
+          <span
+            className={`todoapp__item-ctx ${
+              todoItem.checked ? "todoapp__item-ctx-checked" : ""
+            }`}
+          >
             {todoItem.text}
           </span>
-                )
-            }
-            {
-                // 수정 버튼
-                // 완료한 일인 경우에는 null을 반환하여 보이지 않도록 함
-                !todoItem.checked ? (
-                    edited ? (
-                        <button
-                            type="button"
-                            className="todoapp__item-edit-btn"
-                            onClick={onClickSubmitButton}
-                        >
-                            완료
-                        </button>
-                    ) : (
-                        <button
-                            type="button"
-                            className="todoapp__item-edit-btn"
-                            onClick={onClickEditButton}
-                        >
-                            수정
-                        </button>
-                    )
-                ) : null
-            }
-
-            {/* 삭제 버튼 */}
+        )
+      }
+      {
+        // 수정 버튼
+        // 완료한 일인 경우에는 null을 반환하여 보이지 않도록 함
+        !todoItem.checked ? (
+          edited ? (
             <button
-                type="button"
-                className="todoapp__item-delete-btn"
-                onClick={onClickDeleteButton}
+              type="button"
+              className="todoapp__item-edit-btn"
+              onClick={onClickSubmitButton}
             >
-                삭제
+              완료
             </button>
-        </li>
-    );
+          ) : (
+            <button
+              type="button"
+              className="todoapp__item-edit-btn"
+              onClick={onClickEditButton}
+            >
+              수정
+            </button>
+          )
+        ) : null
+      }
+
+      {/* 삭제 버튼 */}
+      <button
+        type="button"
+        className="todoapp__item-delete-btn"
+        onClick={onClickDeleteButton}
+      >
+        삭제
+      </button>
+    </li>
+  );
 };
 
 ToDoItem.propTypes = {
-    todoItem: PropTypes.shape({
-        id: PropTypes.number,
-        text: PropTypes.string.isRequired,
-    }),
-    todoList: PropTypes.arrayOf(
-        PropTypes.shape({
-            id: PropTypes.number.isRequired,
-            text: PropTypes.string.isRequired,
-        })
-    ),
-    setTodoList: PropTypes.func.isRequired,
+  todoItem: PropTypes.shape({
+    id: PropTypes.number,
+    text: PropTypes.string.isRequired,
+  }),
+  todoList: PropTypes.arrayOf(
+    PropTypes.shape({
+      id: PropTypes.number.isRequired,
+      text: PropTypes.string.isRequired,
+    })
+  ),
+  setTodoList: PropTypes.func.isRequired,
 };
 
 export default ToDoItem;