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- function createStore(reducer){
- let state = reducer(undefined, {}) //стартовая инициализация состояния, запуск редьюсера со state === undefined
- let cbs = [] //массив подписчиков
-
- const getState = () => state //функция, возвращающая переменную из замыкания
- const subscribe = cb => (cbs.push(cb), //запоминаем подписчиков в массиве
- () => cbs = cbs.filter(c => c !== cb)) //возвращаем функцию unsubscribe, которая удаляет подписчика из списка
-
- const dispatch = action => {
- if (typeof action === 'function'){ //если action - не объект, а функция
- return action(dispatch, getState) //запускаем эту функцию и даем ей dispatch и getState для работы
- }
- const newState = reducer(state, action) //пробуем запустить редьюсер
- if (newState !== state){ //проверяем, смог ли редьюсер обработать action
- state = newState //если смог, то обновляем state
- for (let cb of cbs) cb() //и запускаем подписчиков
- }
- }
-
- return {
- getState, //добавление функции getState в результирующий объект
- dispatch,
- subscribe //добавление subscribe в объект
- }
- }
- function combineReducers(reducers) {
- return (state={}, action) => {
- const newState = {}
- // перебрать все редьюсеры
- if (reducers) {
- for (const [reducerName, reducer] of Object.entries(reducers)) {
- const newSubState = reducer(state[reducerName], action)
- if (newSubState !== state[reducerName]) {
- newState[reducerName] = newSubState
- }
- }
- // если newState не пустой, то вернуть стейт в
- if (Object.keys(newState).length !== 0) {
- return {...state, ...newState}
- } else {
- return state
- }
- }
- }
- }
- const combinedReducer = combineReducers({promise: promiseReducer, auth: authReducer, cart: cartReducer})
- const store = createStore(combinedReducer)
- store.subscribe(() => console.log(store.getState()))
- function jwtDecode(token) {
- try {
- let decoded = JSON.parse(atob(token.split('.')[1]))
- return decoded
- } catch (err) {
- console.log(err)
- }
- }
- function authReducer(state, {type, token}) {
- if (!state) {
- if (localStorage.authToken) {
- token = localStorage.authToken
- type = 'AUTH_LOGIN'
- } else {
- return {}
- }
- }
- if (type === 'AUTH_LOGIN') {
- let payload = jwtDecode(token)
- if (typeof payload === 'object') {
- localStorage.authToken = token
- return {
- ...state,
- token,
- payload
- }
- } else {
- return state
- }
- }
- if (type === 'AUTH_LOGOUT') {
- delete localStorage.authToken
- return {}
- }
- return state
- }
- const actionAuthLogin = (token) => ({type: 'AUTH_LOGIN', token})
- const actionAuthLogout = () => ({type: 'AUTH_LOGOUT'})
- function cartReducer (state={}, {type, good={}, count=1}) {
- // if (!state) {
- // localStorage.cart = JSON.stringify({})
- // return {}
- // }
- if (Object.keys(state).length === 0 && localStorage.cart) {
- let currCart = JSON.parse(localStorage.cart)
- if (currCart && Object.keys(currCart).length !== 0) {
- state = currCart
- }
- }
-
- // только если в функции задан count по умолчанию вызывать тут
- // а так лучше вызвать в типах add и change
- // count = +count
- // if (!count) {
- // return state
- // }
- const {_id} = good
- const types = {
- CART_ADD() {
- count = +count
- if (!count) {
- return state
- }
- let newState = {
- ...state,
- [_id]: {good, count: (count + (state[_id]?.count || 0)) < 0 ? 0 : count + (state[_id]?.count || 0)}
- }
- localStorage.cart = JSON.stringify(newState)
- return newState
- },
- CART_CHANGE() {
- count = +count
- if (!count) {
- return state
- }
- let newState = {
- ...state,
- [_id]: {good, count: count < 0 ? 0 : count}
- }
- localStorage.cart = JSON.stringify(newState)
- return newState
- },
- CART_REMOVE() {
- let { [_id]: removed, ...newState } = state
- localStorage.cart = JSON.stringify(newState)
- return newState
- },
- CART_CLEAR() {
- localStorage.cart = JSON.stringify({})
- return {}
- },
- }
- if (type in types) {
- return types[type]()
- }
- return state
- }
- const actionCartAdd = (good, count) => ({type: 'CART_ADD', good, count})
- const actionCartChange = (good, count) => ({type: 'CART_CHANGE', good, count})
- const actionCartRemove = (good) => ({type: 'CART_REMOVE', good})
- const actionCartClear = () => ({type: 'CART_CLEAR'})
- // store.dispatch(actionCartAdd({_id: '111111'}))
- // store.dispatch(actionCartChange({_id: '111111'}, 10))
- // store.dispatch(actionCartAdd({_id: '22222'}))
- // store.dispatch(actionCartRemove({_id: '22222'}))
- // store.dispatch(actionCartClear())
- function promiseReducer(state={}, {type, status, payload, error, name}) {
- if (!state) {
- return {}
- }
- if (type === 'PROMISE') {
- return {
- ...state,
- [name]: {
- status: status,
- payload : payload,
- error: error,
- }
- }
- }
- return state
- }
- const actionPending = (name) => ({type: 'PROMISE', status: 'PENDING', name})
- const actionResolved = (name, payload) => ({type: 'PROMISE', status: 'RESOLVED', name, payload})
- const actionRejected = (name, error) => ({type: 'PROMISE', status: 'REJECTED', name, error})
- const actionPromise = (name, promise) => (
- async (dispatch) => {
- dispatch(actionPending(name))
- try {
- let data = await promise
- dispatch(actionResolved(name, data))
- return data
- }
- catch(error){
- dispatch(actionRejected(name, error))
- }
- }
- )
- const getGQL = url => (
- async (query, variables={}) => {
- let obj = await fetch(url, {
- method: 'POST',
- headers: {
- "Content-Type": "application/json",
- ...(localStorage.authToken ? {Authorization: "Bearer " + localStorage.authToken} : {})
- },
- body: JSON.stringify({ query, variables })
- })
- let a = await obj.json()
- if (!a.data && a.errors) {
- throw new Error(JSON.stringify(a.errors))
- } else {
- return a.data[Object.keys(a.data)[0]]
- }
- }
- )
- const backURL = 'http://shop-roles.asmer.fs.a-level.com.ua/'
- const gql = getGQL(backURL + 'graphql');
- const actionOrder = () => (
- async (dispatch, getState) => {
- let {cart} = getState()
- //магия по созданию структуры вида
- //let orderGoods = [{good: {_id}, count}, {good: {_id}, count} .......]
- //из структуры вида
- //{_id1: {good, count},
- //_id2: {good, count}}
- const orderGoods = Object.entries(cart)
- .map(([_id, {good, count}]) => ({good: {_id}, count}))
- let result = await dispatch(actionPromise('order', gql(`
- mutation newOrder($order:OrderInput){
- OrderUpsert(order:$order)
- { _id total}
- }
- `, {order: {orderGoods}})))
- if (result?._id) {
- dispatch(actionCartClear())
- }
- })
-
- const actionLogin = (login, password) => (
- actionPromise('login', gql(`query log($login: String, $password: String) {
- login(login: $login, password: $password)
- }`, {login, password}))
- )
- const actionFullLogin = (login, password) => (
- async (dispatch) => {
- let token = await dispatch(actionLogin(login, password))
- if (token) {
- // console.log(token)
- dispatch(actionAuthLogin(token))
- }
- }
- )
- const actionRegister = (login, password) => (
- actionPromise('register', gql(`mutation reg($user:UserInput) {
- UserUpsert(user:$user) {
- _id
- }
- }
- `, {user: {login, password}})
- )
- )
- const actionFullRegister = (login, password) => (
- async (dispatch) => {
- let regId = await dispatch(actionRegister(login, password))
- if (regId) {
- // console.log(regId)
- dispatch(actionFullLogin(login, password))
- }
- }
- )
- const actionRootCats = () => (
- actionPromise('rootCats', gql(`query {
- CategoryFind(query: "[{\\"parent\\":null}]"){
- _id name
- }
- }`))
- )
- const actionCatById = (_id) => (
- actionPromise('catById', gql(`query catById($q: String){
- CategoryFindOne(query: $q){
- _id name goods {
- _id name price images {
- url
- }
- }
- subCategories {
- _id name
- }
- }
- }`, {q: JSON.stringify([{_id}])}))
- )
- const actionGoodById = (_id) => (
- actionPromise('goodById', gql(`query goodById($q: String) {
- GoodFindOne(query: $q) {
- _id name price description images {
- url
- }
- }
- }`, {q: JSON.stringify([{_id}])}))
- )
- const actionGoodsByUser = (_id) => (
- actionPromise('goodByUser', gql(`query oUser($query: String) {
- OrderFind(query:$query){
- _id orderGoods{
- price count total good{
- _id name categories{
- name
- }
- images {
- url
- }
- }
- }
- owner {
- _id login
- }
- }
- }`,
- {query: JSON.stringify([{___owner: _id}])}))
- )
- const actionGoodFind = (word) => (
- actionPromise('goodFind', gql(`query goodById($q: String) {
- GoodFind(query: $q) {
- _id name price description images {
- url
- }
- }
- }`, {q: JSON.stringify([
- {
- $or: [{title: `/${word}/`}, {description: `/${word}/`}, {name: `/${word}/`}] //регулярки пишутся в строках
- },
- {
- sort: [{title: 1}] //сортируем по title алфавитно
- }
- ])
- }
- ))
- )
- store.subscribe(() => {
- const {promise} = store.getState()
- const {rootCats} = promise
-
- if (rootCats?.status === 'PENDING') {
- aside.innerHTML = `
- <div class="spinner-border text-primary" role="status">
- <span class="visually-hidden">Loading...</span>
- </div>
- `
- } else {
- if (rootCats?.payload) {
- aside.innerHTML = ''
- const regBtn = document.createElement('a')
- regBtn.href = '#/register'
- regBtn.classList = 'btn btn-primary logBtn'
- regBtn.innerText = 'Register'
- const loginBtn = document.createElement('a')
- loginBtn.href = `#/login`
- loginBtn.classList = 'btn btn-primary logBtn'
- loginBtn.innerText = 'Login'
- const logoutBtn = document.createElement('a')
- logoutBtn.innerText = 'Logout'
- logoutBtn.classList = 'btn btn-primary logBtn'
- aside.append(regBtn, loginBtn, logoutBtn)
- logoutBtn.onclick = () => {
- store.dispatch(actionAuthLogout())
- }
- for (const {_id, name} of rootCats?.payload) {
- const link = document.createElement('a')
- link.classList = 'catBtn bg-light'
- link.href = `#/category/${_id}`
- link.innerText = name
- aside.append(link)
- }
- }
- }
- })
- store.dispatch(actionRootCats())
- function createForm(parent, type, callback) {
- parent.innerHTML = `
- <div class="form">
- <div class="mb-3">
- <label for="login${type}" class="form-label">Логин</label>
- <input class="form-input form-control" id="login${type}" type="text"/>
- </div>
- <div class="mb-3">
- <label for="pass${type}" class="form-label">Пароль</label>
- <input class="form-input form-control" id="pass${type}" type="password"/>
- </div>
- <button class="btn btn-primary" id="btn${type}">${type}</button>
- </div>
- `
- return () => window[`btn${type}`].onclick = () => {
- store.dispatch(callback(window[`login${type}`].value, window[`pass${type}`].value))
- window[`pass${type}`].value = ''
- }
- }
- const createCartPage = (parent) => {
- parent.innerHTML = ''
- const {cart} = store.getState()
- const clearBtn = document.createElement('button')
- clearBtn.classList = 'btn btn-primary cartBtn'
- clearBtn.innerText = "ОЧИСТИТЬ КОРЗИНУ"
- if(Object.keys(cart).length !== 0) {
- parent.append(clearBtn)
- }
- clearBtn.onclick = () => {
- store.dispatch(actionCartClear())
- }
- const cartPage = document.createElement('div')
- cartPage.classList = 'cartPage'
- parent.append(cartPage)
- let cartCounter = 0
- for(const item in cart) {
- const {good} = cart[item]
- const {count, good: {_id: id, name: name, price: price, images: [{url}]}} = cart[item]
- cartCounter += count*price
- const card = document.createElement('div')
- card.classList = 'card cartCard'
- card.innerHTML = `
- <div class="card-header">
- <h4 class="card-title">${name}</h4>
- </div>
- <img class="card-img-top" src="${backURL}/${url}" />
- <div class="card-body">
- <p>${count} шт</p>
- <p>${price} грн</p>
- <h6>Итого: ${count*price} грн</h6>
- </div>
- `
- const inputGr = document.createElement('div')
- inputGr.classList = 'inputGr'
- card.lastElementChild.append(inputGr)
- const minusBtn = document.createElement('button')
- minusBtn.classList = 'btn btn-success'
- minusBtn.innerText = '-'
- inputGr.append(minusBtn)
- minusBtn.onclick = () => {
- store.dispatch(actionCartAdd(good, -1))
- }
- const changeCount = document.createElement('input')
- changeCount.type = 'number'
- changeCount.value = count
- inputGr.append(changeCount)
- changeCount.oninput = () => {
- store.dispatch(actionCartChange(good, changeCount.value))
- }
- const plusBtn = document.createElement('button')
- plusBtn.classList = 'btn btn-success'
- plusBtn.innerText = '+'
- inputGr.append(plusBtn)
- plusBtn.onclick = () => {
- store.dispatch(actionCartAdd(good))
- }
- const deleteGood = document.createElement('button')
- deleteGood.classList = 'btn btn-success'
- deleteGood.innerText = 'Удалить'
- deleteGood.style.display = 'block'
- card.lastElementChild.append(deleteGood)
- deleteGood.onclick = () => {
- store.dispatch(actionCartRemove(good))
- }
- cartPage.append(card)
- }
- const total = document.createElement('h5')
- total.classList = 'totalCart'
- total.innerText = `Всего к оплате: ${cartCounter} грн`
- parent.append(total)
- const sendOrder = document.createElement('button')
- sendOrder.classList = 'btn btn-primary cartBtn'
- sendOrder.innerText = "ОФОРМИТЬ ЗАКАЗ"
- if(Object.keys(cart).length !== 0) {
- parent.append(sendOrder)
- }
- const {auth} = store.getState()
- if (auth.token) {
- sendOrder.disabled = false
- } else {
- sendOrder.disabled = true
- }
- sendOrder.onclick = () => {
- store.dispatch(actionOrder())
- }
- }
- // location.hash - адресная строка после решетки
- window.onhashchange = () => {
- const [,route, _id] = location.hash.split('/')
- const routes = {
- category(){
- store.dispatch(actionCatById(_id))
- },
- good(){
- store.dispatch(actionGoodById(_id))
- },
- register(){
- let goRegister = createForm(main, 'Register', actionFullRegister)
- goRegister()
- },
- login(){
- let goLogin = createForm(main, 'Login', actionFullLogin)
- goLogin()
- },
- orders(){
- store.dispatch(actionGoodsByUser(_id))
- },
- cart(){
- createCartPage(main)
- },
- find(){
- },
- }
- if (route in routes) {
- routes[route]()
- }
- }
- store.subscribe(() => {
- const [,route] = location.hash.split('/')
- if (route === 'cart') {
- createCartPage(main)
- }
- })
- window.onhashchange()
- store.subscribe(() => {
- const {promise} = store.getState()
- const {catById} = promise
- const [,route, _id] = location.hash.split('/')
- if (catById?.status === 'PENDING') {
- main.innerHTML = `
- <div class="d-flex justify-content-center">
- <div class="spinner-border text-primary" role="status">
- <span class="visually-hidden">Loading...</span>
- </div>
- </div>
- `
- } else {
- if (catById?.payload && route === 'category'){
- main.innerHTML = ''
- const catBody = document.createElement('div')
- catBody.classList = 'catBody'
- main.append(catBody)
- const {name} = catById.payload;
- catBody.innerHTML = `<h1 class="catHead">${name}</h1>`
-
- if (catById.payload.subCategories) {
- const linkList = document.createElement('div')
- linkList.classList = 'list-group linkList'
- catBody.append(linkList)
- for(const {_id, name} of catById.payload.subCategories) {
- const link = document.createElement('a')
- link.classList = 'list-group-item list-group-item-action list-group-item-primary linkItem'
- link.href = `#/category/${_id}`
- link.innerText = name
- catBody.append(link)
- }
- }
- if (catById.payload.goods) {
- const cardBody = document.createElement('div')
- cardBody.classList = 'cardBody'
- main.append(cardBody)
- for (const good of catById.payload.goods){
- const {_id, name, price, images} = good
- const card = document.createElement('div')
- card.classList = 'card goodCard'
- card.innerHTML = `
- <img class="card-img-top" src="${backURL}/${images[0].url}" />
- <div class="card-body">
- <h4 class="card-title">${name}</h4>
- <h5>${price} грн</h5>
- <a class="btn btn-primary" href="#/good/${_id}">
- Подробнее
- </a>
- </div>
- `
- const btnCart = document.createElement('button')
- btnCart.innerText = 'В корзину'
- btnCart.classList = 'btn btn-success btnCart'
- btnCart.onclick = () => {
- store.dispatch(actionCartAdd(good))
- }
- card.lastElementChild.append(btnCart)
- cardBody.append(card)
- }
- }
- }
- }
- })
- store.subscribe(() => {
- const {promise} = store.getState()
- const {goodById} = promise
- const [,route, _id] = location.hash.split('/');
- if (goodById?.status === 'PENDING') {
- main.innerHTML = `
- <div class="d-flex justify-content-center">
- <div class="spinner-border text-primary" role="status">
- <span class="visually-hidden">Loading...</span>
- </div>
- </div>
- `
- } else {
- if (goodById?.payload && route === 'good') {
- main.innerHTML = ''
- const good = goodById.payload
- const {_id, name, images, price, description} = good
- const card = document.createElement('div')
- card.classList = 'goodPage'
- card.innerHTML = `<h2>${name}</h2>
- <img src="${backURL}/${images[0].url}" />
- <div>
- <h6>${description}</h6>
- <strong>Цена - ${price} грн</strong>
- </div>
- `
- const btnCart = document.createElement('button')
- btnCart.innerText = 'В корзину'
- btnCart.classList = 'btn btn-success btnCart'
- btnCart.onclick = () => {
- store.dispatch(actionCartAdd(good))
- }
- card.append(btnCart)
- main.append(card);
- }
- }
- }
- )
- store.subscribe(() => {
- const {auth} = store.getState()
- const {payload} = auth
- if (payload?.sub ) {
- topContaner.innerHTML = ''
- const {id, login} = payload.sub
- const name = document.createElement('div')
- name.innerText = `ПРИВЕТ, ${login}`
- topContaner.append(name)
- const myOrders = document.createElement('a')
- myOrders.innerText = 'Мои заказы'
- myOrders.href = `#/orders/${id}`
- topContaner.append(myOrders)
- } else {
- topContaner.innerHTML = ''
- }
- })
- store.subscribe(() => {
- const {promise} = store.getState()
- const {goodByUser} = promise
- const [,route] = location.hash.split('/')
- if (goodByUser?.status === 'PENDING') {
- main.innerHTML = `
- <div class="d-flex justify-content-center">
- <div class="spinner-border text-primary" role="status">
- <span class="visually-hidden">Loading...</span>
- </div>
- </div>
- `
- } else {
- if (goodByUser?.payload && route === 'orders'){
- main.innerHTML = ''
- const cardBody = document.createElement('div')
- cardBody.classList = 'cardBody'
- main.append(cardBody)
-
- if (goodByUser.payload) {
- let totalMoney = 0
-
- for (const order of goodByUser.payload) {
-
- if (order.orderGoods) {
- for (const {price, count, total, good} of order.orderGoods) {
- if (price !== null && count !== null && total !== null && good !== null) {
- totalMoney += total
- const {_id, name, images} = good
-
- const card = document.createElement('div')
- card.classList = 'card goodCard'
- card.innerHTML = `
- <img class="card-img-top" src="${backURL}/${images[0].url}" />
- <div class="card-body">
- <h4 class="card-title">${name}</h4>
- <h6>
- Куплено: ${count} по ${price} грн.
- </h6>
- <h6>
- Итого: ${total} грн
- </h6>
- <a class="btn btn-primary" href="#/good/${_id}">
- Подробнее
- </a>
- </div>
- `
- cardBody.append(card)
- }
- }
- }
-
- }
- const totalBlock = document.createElement('h3')
- totalBlock.innerText = 'Итого потрачено: ' + totalMoney + ' грн'
- main.append(totalBlock)
- }
- }
- }
- })
- store.subscribe(() => {
- const {cart} = store.getState()
- let counter = 0;
-
- for (const key in cart) {
- counter += cart[key].count
- }
- cartCounter.innerText = counter
- })
- store.subscribe(() => {
- const {promise} = store.getState()
- const {goodFind} = promise
- const [,route] = location.hash.split('/')
- if (goodFind?.status === 'PENDING') {
- main.innerHTML = `
- <div class="spinner-border text-primary" role="status">
- <span class="visually-hidden">Loading...</span>
- </div>
- `
- } else {
- if (goodFind?.payload && route === 'find') {
- main.innerHTML = ''
- if (goodFind?.payload.length > 0) {
-
- const cardBody = document.createElement('div')
- cardBody.classList = 'cardBody'
- main.append(cardBody)
- for (const good of goodFind.payload) {
- const {_id, name, price, images} = good
- const card = document.createElement('div')
- card.classList = 'card goodCard'
- card.innerHTML = `
- <img class="card-img-top" src="${backURL}/${images[0].url}" />
- <div class="card-body">
- <h4 class="card-title">${name}</h4>
- <h5>${price} грн</h5>
- <a class="btn btn-primary" href="#/good/${_id}">
- Подробнее
- </a>
- </div>
- `
- const btnCart = document.createElement('button')
- btnCart.innerText = 'В корзину'
- btnCart.classList = 'btn btn-success btnCart'
- btnCart.onclick = () => {
- store.dispatch(actionCartAdd(good))
- }
- card.lastElementChild.append(btnCart)
- cardBody.append(card)
- }
- } else {
- main.innerHTML = 'Результаты не найдены'
- }
- }
- }
- })
- findField.oninput = () => {
- window.location.hash = `#/find`
- store.dispatch(actionGoodFind(findField.value))
- }
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