sql/cigane/src/App.vue

<script setup>
import { ref } from 'vue'

const ticker = ref('')

const tickers = ref([
  { name: 'DEMO', price: '-' },
  { name: 'DEMO', price: '-' },
  { name: 'DEMO', price: '-' },
])

fetch(url).then(res => {
    // здесь res строка, поэтому необходимо преобразовать ее в json-объект
    if (res.ok) {
        // метод json тоже асинхронный, поэтому мы возвращаем очередной промис
        return res.json()
    }
    else throw new Error('Что-то пошло не так')
}).then(json => {
    return json
}).catch(error => {
    // можем извлечь текст ошибки и показать клиенту
}).finally(() => {
    // тут мы можем погасить какую-нибудь "крутилку", если запускали её перед fetch
})

onMounted(async () => {
  const f = await fetch(
    'https://min-api.cryptocompare.com/data/all/coinlist?summary=true'
  )
  const data = await f.json()
  if (data.Response == 'Success') {
    valutes.value = Object.keys(data.Data)
  }
})

function add() {
  const newTicker = {
    name: ticker.value.toUpperCase(),
    price: '-',
  }
  tickers.value.push(newTicker)
  setInterval(async () => {
    const f = await fetch(
      `https://min-api.cryptocompare.com/data/price?fsym=${newTicker.name}&tsyms=USD&api_key=ce3fd966e7a1d10d65f907b20bf000552158fd3ed1bd614110baa0ac6cb57a7e`,
    )
    const data = await f.json()

    if (typeof data.USD != 'undefined') {
      if (sel.value?.name === newTicker.name) {
        graph.value.push(data.USD)
      }
      tickers.value.find(t => t.name === newTicker.name).price =
        data.USD > 1 ? data.USD.toFixed(2) : data.USD.toPrecision(2)
    }
  }, 3000)
}
function handleDelete(tickerToRemove) {
  tickers.value = tickers.value.filter(t => t != tickerToRemove)
}

const sel = ref(null)

const graph = ref([])

function normalizeGraph() {
  const maxValue = Math.max(...graph.value)
  const minValue = Math.min(...graph.value)
  return graph.value.map(
    price => 5 + ((price - minValue) * 95) / (maxValue - minValue),
  )
}
function select(ticker) {
  sel.value = ticker
  graph.value = []
}
</script>

<template>
  <div class="container mx-auto flex flex-col items-center bg-gray-100 p-4">
    <!--<div class="fixed w-100 h-100 opacity-80 bg-purple-800 inset-0 z-50 flex items-center justify-center">
    <svg class="animate-spin -ml-1 mr-3 h-12 w-12 text-white" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
      <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
      <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
    </svg>
  </div> -->

    <div class="container">
      <section>
        <div class="flex">
          <div class="max-w-xs">
            <label for="wallet" class="block text-sm font-medium text-gray-700"
              >Тикер {{ ticker }}</label
            >
            <div class="mt-1 relative rounded-md shadow-md">
              <input
                v-model="ticker"
                v-on:keydown.enter="add"
                type="text"
                name="wallet"
                id="wallet"
                class="block w-full pr-10 border-gray-300 text-gray-900 focus:outline-none focus:ring-gray-500 focus:border-gray-500 sm:text-sm rounded-md"
                placeholder="Например DOGE"
              />
            </div>
            <div
              class="flex bg-white shadow-md p-1 rounded-md shadow-md flex-wrap"
            >
              <span
                class="inline-flex items-center px-2 m-1 rounded-md text-xs font-medium bg-gray-300 text-gray-800 cursor-pointer"
              >
                BTC
              </span>
              <span
                class="inline-flex items-center px-2 m-1 rounded-md text-xs font-medium bg-gray-300 text-gray-800 cursor-pointer"
              >
                DOGE
              </span>
              <span
                class="inline-flex items-center px-2 m-1 rounded-md text-xs font-medium bg-gray-300 text-gray-800 cursor-pointer"
              >
                BCH
              </span>
              <span
                class="inline-flex items-center px-2 m-1 rounded-md text-xs font-medium bg-gray-300 text-gray-800 cursor-pointer"
              >
                CHD
              </span>
            </div>
            <div class="text-sm text-red-600">Такой тикер уже добавлен</div>
          </div>
        </div>
        <button
          @click="add"
          type="button"
          class="my-4 inline-flex items-center py-2 px-4 border border-transparent shadow-sm text-sm leading-4 font-medium rounded-full text-white bg-gray-600 hover:bg-gray-700 transition-colors duration-300 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-gray-500"
        >
          <!-- Heroicon name: solid/mail -->
          <svg
            class="-ml-0.5 mr-2 h-6 w-6"
            xmlns="http://www.w3.org/2000/svg"
            width="30"
            height="30"
            viewBox="0 0 24 24"
            fill="#ffffff"
          >
            <path
              d="M13 7h-2v4H7v2h4v4h2v-4h4v-2h-4V7zm-1-5C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8z"
            ></path>
          </svg>
          Добавить
        </button>
      </section>

      <hr
        v-if="tickers.length > 0"
        class="w-full border-t border-gray-600 my-4"
      />
      {{ sel }}
      <dl class="mt-5 grid grid-cols-1 gap-5 sm:grid-cols-3">
        <div
          v-for="t in tickers"
          :key="t"
          @click="sel = t"
          :class="sel == t ? 'border-4' : ''"
          class="bg-white overflow-hidden shadow rounded-lg border-purple-800 border-solid cursor-pointer"
        >
          <div class="px-4 py-5 sm:p-6 text-center">
            <dt class="text-sm font-medium text-gray-500 truncate">
              {{ t.name }} - USD
            </dt>
            <dd class="mt-1 text-3xl font-semibold text-gray-900">
              {{ t.price }}
            </dd>
          </div>
          <div class="w-full border-t border-gray-200"></div>
          <button
            @click.stop="handleDelete(t)"
            class="flex items-center justify-center font-medium w-full bg-gray-100 px-4 py-4 sm:px-6 text-md text-gray-500 hover:text-gray-600 hover:bg-gray-200 hover:opacity-20 transition-all focus:outline-none"
          >
            <svg
              class="h-5 w-5"
              xmlns="http://www.w3.org/2000/svg"
              viewBox="0 0 20 20"
              fill="#718096"
              aria-hidden="true"
            >
              <path
                fill-rule="evenodd"
                d="M9 2a1 1 0 00-.894.553L7.382 4H4a1 1 0 000 2v10a2 2 0 002 2h8a2 2 0 002-2V6a1 1 0 100-2h-3.382l-.724-1.447A1 1 0 0011 2H9zM7 8a1 1 0 012 0v6a1 1 0 11-2 0V8zm5-1a1 1 0 00-1 1v6a1 1 0 102 0V8a1 1 0 00-1-1z"
                clip-rule="evenodd"
              ></path></svg
            >Удалить
          </button>
        </div>
      </dl>
      <hr
        v-if="tickers.length > 0"
        class="w-full border-t border-gray-600 my-4"
      />
      <section v-if="sel" class="relative">
        <h3 class="text-lg leading-6 font-medium text-gray-900 my-8">
          {{ sel.name }} - USD
        </h3>
        <div class="flex items-end border-gray-600 border-b border-l h-64">
          <div
            v-for="(bar, idx) in normalizeGraph()"
            :key="idx"
            :style="{ height: `${bar}%` }"
            class="bg-purple-800 border w-10"
          ></div>
        </div>
        <button
          @click="sel = null"
          type="button"
          class="absolute top-0 right-0"
        >
          <svg
            xmlns="http://www.w3.org/2000/svg"
            xmlns:xlink="http://www.w3.org/1999/xlink"
            xmlns:svgjs="http://svgjs.com/svgjs"
            version="1.1"
            width="30"
            height="30"
            x="0"
            y="0"
            viewBox="0 0 511.76 511.76"
            style="enable-background: new 0 0 512 512"
            xml:space="preserve"
          >
            <g>
              <path
                d="M436.896,74.869c-99.84-99.819-262.208-99.819-362.048,0c-99.797,99.819-99.797,262.229,0,362.048    c49.92,49.899,115.477,74.837,181.035,74.837s131.093-24.939,181.013-74.837C536.715,337.099,536.715,174.688,436.896,74.869z     M361.461,331.317c8.341,8.341,8.341,21.824,0,30.165c-4.16,4.16-9.621,6.251-15.083,6.251c-5.461,0-10.923-2.091-15.083-6.251    l-75.413-75.435l-75.392,75.413c-4.181,4.16-9.643,6.251-15.083,6.251c-5.461,0-10.923-2.091-15.083-6.251    c-8.341-8.341-8.341-21.845,0-30.165l75.392-75.413l-75.413-75.413c-8.341-8.341-8.341-21.845,0-30.165    c8.32-8.341,21.824-8.341,30.165,0l75.413,75.413l75.413-75.413c8.341-8.341,21.824-8.341,30.165,0    c8.341,8.32,8.341,21.824,0,30.165l-75.413,75.413L361.461,331.317z"
                fill="#718096"
                data-original="#000000"
              ></path>
            </g>
          </svg>
        </button>
      </section>
    </div>
  </div>
</template>