<template>
  <section class="content flex-col">
    <aside class="filter-bar">
      <PpButtonGroup
        :buttons="filterButtons"
        @click="sort"
      />
    </aside>
    <div class="pc-wrapper flex-col" role="list">
      <PpPriceCard
        v-for="(card, index) in cards"
        :key="card.uuid"
        :deletable="cards.length > 1"
        :card="card"
        @update="newCard => updateCard(newCard, index)"
        @remove="removeCard(card)"
      />
    </div>
  </section>
  <PpToolbar>
    <PpButton class="mini-button text-white" @click="sort(currentSort)">
      <Icon class="icon" name="uil:refresh" mode="svg" />
      <span>Neu sortieren</span>
      <span
        class="dot"
        :class="{ visible : isDirty}"
        aria-hidden="true"
      />
    </PpButton>
    <PpButton class="mini-button text-white" @click="addCard">
      <Icon class="icon" name="uil:plus" mode="svg" />
      <span>Hinzufügen</span>
    </PpButton>
  </PpToolbar>
</template>

<script setup lang="ts">
import type { Card } from '../../shared/Card'
import type { Button } from '../../shared/ButtonGroup'

const currentSort = ref(0)
const isDirty = ref(false)

const createCard = (uuid : string) : Card => ({
  uuid,
  name: '',
  price: 0,
  roles: 0,
  sheets: 0,
  layers: 0,
  ppr: 0,
  pps: 0,
  ppl: 0,
})

const cards = useState('cards', () => [
  createCard(crypto.randomUUID()),
])

const addCard = () => {
  cards.value.unshift(createCard(crypto.randomUUID()))
  isDirty.value = true
}

const removeCard = (card : Card) => {
  cards.value = cards.value.filter(element => element.uuid !== card.uuid)
  isDirty.value = true
  updateLocalStorage()
}

const updateCard = (card : Card, index : number) => {
  cards.value[index] = card
  isDirty.value = true
  updateLocalStorage()
}


const updateLocalStorage = () => {
  localStorage.setItem('cards', JSON.stringify(cards.value))
  localStorage.setItem('sort', JSON.stringify(currentSort.value))
}

const filterButtons = ref<Button[]>([
  {
    label: 'Rollen',
    icon: 'uil:toilet-paper',
  },
  {
    label: 'Blatt',
    icon: 'uil:file-landscape',
  },
  {
    label: 'Lagen',
    icon: 'uil:layer-group',
  },
])

const sortBy = (key : 'ppr' | 'pps' | 'ppl') => {
  cards.value.sort((a : Card, b : Card) => a[key] - b[key])
}

const sort = (index : number) => {
  currentSort.value = index
  filterButtons.value.forEach(button => { button.active = false })
  filterButtons.value[index]!.active = true

  switch (index) {
    case 0:
      sortBy('ppr')
      break
    case 1:
      sortBy('pps')
      break
    case 2:
      sortBy('ppl')
      break
  }

  updateLocalStorage()
  isDirty.value = false
}

onMounted(() => {
  const cardsFromStorage = JSON.parse(localStorage.getItem('cards') ?? '[]')
  cards.value = cardsFromStorage.length !== 0 ? cardsFromStorage : cards.value
  const sortFromStorage = +JSON.parse(localStorage.getItem('sort') ?? '0')
  sort(sortFromStorage)
  filterButtons.value[sortFromStorage]!.active = true
})
</script>
