<script setup lang="ts">
import { useBookRecommendationStore } from '~/stores/book-recommendations'
import type { FormSubmitEvent } from '#ui/types'

const props = defineProps<{
  row: {
    id: number
    book_name: string
    author: string
    description: string
    isbn: string
    pages: number
    cover_image?: string | File
    status: string
    published_at: string
    recommender: {
      ulid: string
    }
  }
}>()

const dayjs = useDayjs()
const authStore = useAuthStore()

const { $storage } = useNuxtApp()

const isOpen = ref(false)
const loading = ref(false)

const form = ref()

interface State {
  book_name: string
  author: string
  description: string
  isbn: string
  pages: number
  cover_image?: File | string
  status: string
  published_at: string
  // Index signature
  [key: string]: string | number | File | Date | undefined
}

const state: State = reactive({
  book_name: props.row.book_name,
  author: props.row.author,
  description: props.row.description,
  isbn: props.row.isbn,
  pages: props.row.pages,
  cover_image: props.row.cover_image,
  status: props.row.status,
  published_at: dayjs(props.row.published_at).format('YYYY-MM-DD'),
})

watch(() => props.row, (newRow) => {
  state.book_name = newRow.book_name
  state.author = newRow.author
  state.description = newRow.description
  state.isbn = newRow.isbn
  state.pages = newRow.pages
  state.cover_image = newRow.cover_image
  state.status = newRow.status
  state.published_at = dayjs(newRow.published_at).format('YYYY-MM-DD')
}, { deep: true, immediate: true })

function handleCoverImageInput(event: Event) {
  const file = (event.target as HTMLInputElement).files?.[0]
  if (file) {
    // Update the state with the selected file
    state.cover_image = file
  }
}

const bookRecommendationStore = useBookRecommendationStore()

async function onSubmit(event: FormSubmitEvent<any>) {
  form.value.clear()
  loading.value = true
  const formData = new FormData()
  for (const key in state) {
    const item = state[key]
    if (item === undefined) {
      continue
    }
    if (key === 'cover_image' && state[key] instanceof File) {
      formData.append(key, item as Blob, (state[key] as File).name)
    }
    else {
      const value = typeof item === 'string' ? item : String(item)
      if (key === 'cover_image') {
        continue
      }
      formData.append(key, value)
    }
  }
  const response = await $fetch<any>(`book-recommendations/${props.row.id}`, {
    method: 'PUT',
    body: formData,
    async onResponse({ response }) {
      loading.value = false
      if (response?.status === 422) {
        form.value.setErrors(response._data?.errors)
      }
      else if (response.ok) {
        useToast().add({
          icon: 'i-heroicons-check-circle-20-solid',
          title: 'Buchempfehlung wurde erfolgreich aktualisiert.',
          color: 'emerald',
        })
        isOpen.value = false
      }
    },
  })
  await bookRecommendationStore.fetchRecommendations()
}

function isFile(value: any): value is File {
  return value instanceof File
}
</script>

<template>
  <div>
    <UButton v-if="authStore.user.ulid === props.row.recommender.ulid || authStore.user.roles.includes('admin')" class="transition-150 transform-gpu hover:scale-110" icon="i-heroicons-pencil-square" size="sm" variant="solid" square @click="isOpen = true" />

    <UModal v-model="isOpen">
      <UCard :ui="{ ring: '', divide: 'divide-y divide-gray-100 dark:divide-gray-800' }">
        <template #header>
          <div class="flex items-center justify-between">
            <h3 class="text-base font-semibold leading-6 text-gray-900 dark:text-white">
              Bearbeiten
            </h3>
            <UButton color="gray" variant="ghost" icon="i-heroicons-x-mark-20-solid" class="-my-1" @click="isOpen = false" />
          </div>
        </template>

        <UForm ref="form" :state="state" class="space-y-4" enctype="multipart/form-data" @submit="onSubmit">
          <UFormGroup label="Name" name="book_name">
            <UInput v-model="state.book_name" />
          </UFormGroup>
          <UFormGroup label="Autor" name="author">
            <UInput v-model="state.author" />
          </UFormGroup>
          <UFormGroup label="Erstveröffentlichung">
            <UInput v-model="state.published_at" type="date" />
          </UFormGroup>
          <UFormGroup label="Beschreibung" name="description">
            <UTextarea v-model="state.description" />
          </UFormGroup>
          <img v-if="state.cover_image && typeof state.cover_image === 'string'" :src="$storage(state.cover_image)" alt="Cover" class="size-1/3 content-center rounded-lg">
          <img v-else-if="state.cover_image && isFile(state.cover_image)" :src="URL.createObjectURL(state.cover_image)" alt="Cover" class="size-1/3 content-center rounded-lg">
          <UFormGroup label="Cover" name="cover_image">
            <UInput type="file" @change="handleCoverImageInput" />
          </UFormGroup>
          <UFormGroup label="ISBN" name="isbn">
            <UInput v-model="state.isbn" />
          </UFormGroup>
          <UFormGroup label="Seiten" name="pages">
            <UInput v-model="state.pages" type="number" />
          </UFormGroup>
          <UFormGroup label="Status" name="status">
            <USelect v-model="state.status" :options="bookRecommendationStore.statusOptions" option-attribute="name" />
          </UFormGroup>
          <UButton size="md" type="submit">
            Speichern
          </UButton>
          <UButton size="md" class="mx-4" color="white" label="Abbrechen" @click="isOpen = false" />
        </UForm>
      </UCard>
    </UModal>
  </div>
</template>
