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@@ -0,0 +1,125 @@
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+function createStore(reducer){
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+ let state = reducer(undefined, {})
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+ let cbs = []
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+ return {
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+ dispatch(action){
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+ const newState = reducer(state, action)
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+ if (newState !== state){
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+ state = newState
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+ for (let cb of cbs)
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+ cb()
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+ }
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+ },
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+ getState(){
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+ return state
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+ },
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+ subscribe(cb){
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+ cbs.push(cb)
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+ return () => cbs = cbs.filter(c => c !== cb)
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+ }
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+ }
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+}
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+
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+function createKiosk(state){
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+ let div = document.getElementById('content')
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+ div.innerHTML = ''
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+ let hello = document.createElement('span')
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+ hello.innerHTML = 'ГАСТРОНОМ "У ЛЮСИ" <br />'
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+ hello.style.color = '#4B0082'
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+ div.appendChild(hello)
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+
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+ let pivo = document.createElement('span')
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+ pivo.innerHTML = `- Пивасик по ${state.пивасик.БАБЛО} грн,\n`
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+ div.appendChild(pivo)
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+ let pivoAmount = document.createElement('span')
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+ pivoAmount.innerHTML = `${state.пивасик.СКОКА}\n банок в наличии<br />`
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+ div.appendChild(pivoAmount)
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+
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+ let chips = document.createElement('span')
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+ chips.innerHTML = `- Чипсики по ${state.чипсики.БАБЛО} грн,\n`
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+ div.appendChild(chips)
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+ let chipsAmount = document.createElement('span')
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+ chipsAmount.innerHTML = `${state.чипсики.СКОКА}\n пачек в наличии<br />`
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+ div.appendChild(chipsAmount)
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+
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+ let cigi = document.createElement('span')
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+ cigi.innerHTML = `- Сиги по ${state.сиги.БАБЛО} грн,\n`
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+ div.appendChild(cigi)
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+ let cigiAmount = document.createElement('span')
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+ cigiAmount.innerHTML = `${state.сиги.СКОКА}\n пачек в наличии<br />`
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+ div.appendChild(cigiAmount)
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+
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+ let kassa = document.createElement('span')
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+ kassa.innerText = `- Бабосиков в кассе: ${state.касса} грн\n`
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+ div.appendChild(kassa)
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+ let select = document.createElement('select')
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+ div.appendChild(select)
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+
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+ let pruduct = document.createElement('option')
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+ pruduct.innerText = 'Выберите товар'
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+ select.appendChild(pruduct)
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+
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+ let pivasik = document.createElement('option')
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+ pivasik.innerText = 'пивасик'
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+ select.appendChild(pivasik)
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+
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+ let chipsiki = document.createElement('option')
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+ chipsiki.innerText = 'чипсики'
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+ select.appendChild(chipsiki)
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+
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+ let cigarette = document.createElement('option')
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+ cigarette.innerText = 'сиги'
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+ select.appendChild(cigarette)
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+
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+ let inputAmount = document.createElement('input')
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+ inputAmount.type = 'number'
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+ inputAmount.min = '1'
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+ div.appendChild(inputAmount)
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+
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+ let button = document.createElement('button')
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+ button.innerText = "Купить"
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+ div.appendChild(button)
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+
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+ button.onclick = () => {
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+ if(state[select.value].СКОКА >= inputAmount.value){
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+ let pieces = inputAmount.value
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+ let price = select.value
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+ store.dispatch(купи(price, pieces))
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+ } else{
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+ alert("А ты не лопнишь, деточка?...ладно, шучу:D - такого количества товара в наличии попросту нет!")
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+ }
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+ }
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+ return state
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+}
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+
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+
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+function reducer(state, {type, ШО, СКОКА, БАБЛО}){
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+ if (!state){
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+ return {
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+ пивасик: {СКОКА: 100, БАБЛО: 30},
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+ чипсики: {СКОКА: 100, БАБЛО: 20},
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+ сиги: {СКОКА : 100, БАБЛО: 40},
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+ касса: 0
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+ }
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+ }
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+
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+ if (type === 'КУПИТЬ'){
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+ return {
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+ ...state,
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+ [ШО]: {...state[ШО], СКОКА: state[ШО].СКОКА - СКОКА},
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+ касса: state[ШО].БАБЛО * СКОКА + state.касса
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+ }
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+ }
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+ return state
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+}
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+
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+const store = createStore(reducer)
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+const unsubscribe1 = store.subscribe(() => console.log('подписчик 1', store.getState()))
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+const kiosk = store.subscribe(() => createKiosk(store.getState()))
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+const купиПивасик = СКОКА => ({type: 'КУПИТЬ', ШО: 'пивасик', СКОКА})
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+const купиЧипсики = СКОКА => ({type: 'КУПИТЬ', ШО: 'чипсики', СКОКА})
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+const купиСиги = СКОКА => ({type: 'КУПИТЬ', ШО: 'сиги', СКОКА})
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+const купи = (ШО,СКОКА) => ({type: 'КУПИТЬ', ШО, СКОКА})
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+store.dispatch(купиЧипсики(0))
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+store.dispatch(купиПивасик(0))
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+store.dispatch(купиСиги(0))
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Евгения Акиншина
