Inflearn-redux/main.html at main · wldnfl/Inflearn-redux · GitHub

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<!DOCTYPE html>
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/redux/4.0.1/redux.js" integrity="sha512-aU+9st6E3LYPknXJiOkhUXxYz/QbB1IDf1YUYzCCbgiwOCu2g/1pH+68ROdxC3clouCOVfO6u2g7qoB43rfmQg==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
</head>
<body>
    <div id="subject"></div>
    <div id="TOC"></div>
    <div id="control"></div>
    <div id="content"></div>
    <script>
function subject(){
document.querySelector('#subject').innerHTML = `
    <header>
    <h1>REDUX WEB</h1>
    Hello, Redux WEB!
    </header>
`
}
function TOC() {    //목록 나타낼 때
var state = store.getState(); // store의 state 불러오기
var i = 0;
var liTags = '';
while(i<state.contents.length) {
    liTags = liTags + `
    <li>
    <a onclick="
        event.preventDefault();
        var action = {type:'SELECT', id:${state.contents[i].id}};
        store.dispatch(action);
    " href="${state.contents[i].id}">
        ${state.contents[i].title}
    </a>
    </li>
    `;
    i = i + 1;
}
// console.log(state);
document.querySelector('#TOC').innerHTML = `
    <nav>
    <ol>${liTags}</ol>
    </nav>
`
}
function control() {
document.querySelector('#control').innerHTML = `
<ul>
    <li><a onClick="
        event.preventDefault();
        store.dispatch({
            type: 'CHANGE_MODE'
        });
        " href="/create">create</a></li>
    <li><input onClick="
        store.dispatch({
        type:'DELETE'
        });
    " type="button" value="delete"/></li>
    </ul>
`
}

function article() {
var state = store.getState(); // store의 state 불러오기
if(state.mode === 'create') {
    document.querySelector('#content').innerHTML = `
    <article>
        <form onSubmit="
        event.preventDefault();
        var _title = this.title.value;
        var _desc = this.desc.value;
        store.dispatch({
            type:'CREATE',
            title: _title,
            desc: _desc
        })
        ">
        <p>
            <input type="text" name="title" placeholder="title">
        </p>
        <p>
            <textarea name="desc" placeholder="description"></textarea>
        </p>
        <p>
            <input type="submit" >
        </p>
        </form>
    </article>
    `
} else if(state.mode === 'read') {
    var i = 0;
    var aTitle, aDesc;
    while(i < state.contents.length) {
    if(state.contents[i].id === state.selected_id){
        aTitle = state.contents[i].title;
        aDesc = state.contents[i].desc;
        break;
    }
    i = i + 1;
    }
    document.querySelector('#content').innerHTML = `
    <article>
        <h2>${aTitle}</h2>
        ${aDesc}
    </article>
    `
} else if (state.mode === 'welcome') {
    document.querySelector('#content').innerHTML = `
    <article>
        <h2>Welcome</h2>
        Hello, Redux!!!
    </article>
    `
}
}

function reducer(state, action){ //이전의 state 값, action: 호출된 이후의 값
if (state === undefined){ // state의 초기값 설정
    return {
    max_id: 2,
    mode: 'create',
    selected_id:null,
    contents: [
        {id: 1, title:'HTML', desc:'HTML is ..'},
        {id: 2, title:'CSS', desc:'CSS is ..'}
    ]
    }
}
var newState;

if(action.type === 'SELECT') {
    newState = Object.assign(
    {},
    state,
    {selected_id: action.id, mode:'read'}
    );
} else if (action.type === 'CREATE') {
    var newMaxID = state.max_id + 1;
    var newContents = state.contents.concat();  // 배열을 복제
    newContents.push({id: newMaxID,title:action.title, desc:action.desc});
    newState = Object.assign({}, state, {
    max_id : newMaxID,
    contents: newContents,
    mode : 'read'
    })
} else if (action.type === 'DELETE') {
    var newContents = [];
    var i = 0;
    while(i < state.contents.length) {
    if(state.selected_id !== state.contents[i].id) {
        newContents.push(
        state.contents[i]
        )
        break;
    }
    i = i + 1;
    }
    newState = Object.assign({}, state, {
    contents: newContents,
    mode:'welcome'
    })
} else if (action.type === 'CHANGE_MODE') {
    newState = Object.assign({}, state, {
    mode: 'create'
    });
}

console.log(action);
return newState;
}


var store = Redux.createStore(reducer);  // Redux를 사용하기 위해 Store 생성
store.subscribe(article);
store.subscribe(TOC);
store.subscribe(control);
subject();
TOC();
control();
article();

    </script>


</body>
</html>