propapier/app/components/Pp/PriceCard.vue

<template>
  <form class="PriceCard card">
    <div class="padding bg-blue flex-col">
      <div class="wrapper">
        <PpFormInput v-model="name" label="Name" id="n" :uid="uid" type="text" />
        <PpFormInput v-model="price" label="Preis" id="p" :uid="uid" type="number" :min="0.01" @blur="calculate" />
      </div>
      <div class="wrapper">
        <PpFormInput v-model="roles" label="Rollen" id="r" :uid="uid" type="number" :max="150" @blur="calculate" />
        <PpFormInput v-model="sheets" label="Blätter" id="b" :uid="uid" type="number" :max="500" @blur="calculate" />
        <PpFormInput v-model="layers" label="Lagen" id="l" :uid="uid" type="number" :max="10" @blur="calculate" />
      </div>
    </div>
    <div class="wrapper padding bg-white">
      <div class="info flex-col">
        <Icon class="icon" name="uil:toilet-paper" mode="svg" />
        <span class="price">{{ intl.format(ppr) }}</span>
        <span class="pro">Pro 1</span>
      </div>
      <div class="info flex-col">
        <Icon class="icon" name="uil:file-landscape" mode="svg" />
        <span class="price">{{ intl.format(ppr) }}</span>
        <span class="pro">Pro 10</span>
      </div>
      <div class="info flex-col">
        <Icon class="icon" name="uil:layer-group" mode="svg" />
        <span class="price">{{ intl.format(ppl) }}</span>
        <span class="pro">Pro 100</span>
      </div>
    </div>
  </form>
</template>

<script setup lang="ts">
type Props = {
  uid: number
}

const { uid } = defineProps<Props>()

const name = ref('')
const price = ref(0)
const roles = ref(0)
const sheets = ref(0)
const layers = ref(0)

const ppr = ref(0)
const pps = ref(0)
const ppl = ref(0)

const intl = Intl.NumberFormat('de-DE', {
  style: 'currency',
  currency: 'EUR',
})

const calculate = () => {
  if (!price.value || !roles.value) return
  ppr.value = price.value / roles.value

  if (!sheets.value) return
  pps.value = (ppr.value / sheets.value) * 10

  if(!layers.value) return
  ppl.value = (pps.value / layers.value) * 100
}
</script>