<template>
  <DocumentPreviewModal
    :document="previewDocument"
    :visible="previewVisible"
    :documents="componentDocuments"
    @close="closePreview"
  />
  <main class="container mx-auto px-6 py-10">
    <div v-if="loading" class="flex flex-col items-center gap-4 py-20 text-center">
      <span class="loading loading-spinner loading-lg" aria-hidden="true" />
      <p class="text-sm text-base-content/70">Chargement du composant…</p>
    </div>

    <div v-else-if="!component" class="max-w-xl mx-auto">
      <div class="alert alert-error shadow-lg">
        <div>
          <h2 class="font-semibold text-lg">Composant introuvable</h2>
          <p class="text-sm text-base-content/80">
            Nous n'avons pas pu retrouver le composant demandé. Il a peut-être été supprimé.
          </p>
        </div>
      </div>
      <button type="button" class="btn btn-primary mt-6" @click="$router.back()">
        Retour au catalogue
      </button>
    </div>

    <section v-else class="card border border-base-200 bg-base-100 shadow-sm max-w-5xl mx-auto">
      <div class="card-body space-y-6">
        <header class="flex flex-col gap-2 md:flex-row md:items-center md:justify-between">
          <div>
            <h1 class="text-3xl font-semibold text-base-content">Modifier le composant</h1>
            <p class="text-sm text-base-content/70">
              Mettez à jour les informations du composant et ses champs personnalisés.
            </p>
          </div>
          <button type="button" class="btn btn-ghost btn-sm md:btn-md self-start" @click="$router.back()">
            Retour au catalogue
          </button>
        </header>

        <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
          <div class="form-control">
            <label class="label">
              <span class="label-text">Catégorie de composant</span>
            </label>
            <select
              v-model="selectedTypeId"
              class="select select-bordered select-sm md:select-md"
              disabled
            >
              <option value="">Sélectionner une catégorie</option>
              <option
                v-for="type in componentTypeList"
                :key="type.id"
                :value="type.id"
              >
                {{ type.name }}
              </option>
            </select>
            <p class="text-xs text-base-content/60 mt-1">
              La catégorie d'origine ne peut pas être modifiée depuis cette page.
            </p>
          </div>
        </div>

        <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
          <div class="form-control">
            <label class="label">
              <span class="label-text">Nom du composant</span>
            </label>
            <input
              v-model="editionForm.name"
              type="text"
              class="input input-bordered input-sm md:input-md"
              :disabled="!canEdit || saving"
              placeholder="Nom affiché dans le catalogue"
              required
            >
          </div>
        </div>

        <div class="form-control">
          <label class="label">
            <span class="label-text">Description</span>
          </label>
          <textarea
            v-model="editionForm.description"
            class="textarea textarea-bordered textarea-sm md:textarea-md"
            :disabled="!canEdit || saving"
            placeholder="Description du composant (optionnel)"
            rows="3"
          />
        </div>

        <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
          <div class="form-control">
            <label class="label">
              <span class="label-text">Référence</span>
            </label>
            <input
              v-model="editionForm.reference"
              type="text"
              class="input input-bordered input-sm md:input-md"
              :disabled="!canEdit || saving"
              placeholder="Référence interne ou fournisseur"
            >
          </div>

          <div class="form-control">
            <label class="label">
              <span class="label-text">Fournisseur</span>
            </label>
            <ConstructeurSelect
              v-model="editionForm.constructeurIds"
              class="w-full"
              :disabled="!canEdit || saving"
              placeholder="Rechercher un ou plusieurs fournisseurs..."
              :initial-options="component?.constructeurs || []"
            />
          </div>
        </div>

        <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
          <div class="form-control">
            <label class="label">
              <span class="label-text">Prix indicatif (€)</span>
            </label>
            <input
              v-model="editionForm.prix"
              type="number"
              step="0.01"
              min="0"
              class="input input-bordered input-sm md:input-md"
              :disabled="!canEdit || saving"
              placeholder="Valeur indicatrice"
            >
          </div>
        </div>

        <StructureSkeletonPreview
          v-if="selectedType"
          :structure="selectedTypeStructure"
          :description="selectedType.description || 'Ce squelette définit la structure et les contraintes du composant.'"
          :preview-badge="formatStructurePreview(selectedTypeStructure)"
          variant="component"
          show-empty-state
          :resolve-piece-label="resolvePieceLabel"
          :resolve-product-label="resolveProductLabel"
          :resolve-subcomponent-label="resolveSubcomponentLabel"
        />

        <div
          v-if="structureSelections.hasAny"
          class="space-y-3 rounded-lg border border-base-200 bg-base-200/30 p-4"
        >
          <header class="space-y-1">
            <h2 class="font-semibold text-base-content">Sélections actuelles</h2>
            <p class="text-xs text-base-content/70">
              Voici les pièces, produits et sous-composants réellement choisis pour ce composant.
            </p>
          </header>

          <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
            <div v-if="structureSelections.pieces.length" class="space-y-2">
              <h3 class="font-semibold text-sm text-base-content">Pièces choisies</h3>
              <ul class="list-disc list-inside space-y-1 text-sm">
                <li v-for="entry in structureSelections.pieces" :key="`selected-piece-${entry.path}-${entry.id}`">
                  <span class="font-medium">{{ entry.resolvedName }}</span>
                  <span class="text-xs text-base-content/70"> — {{ entry.requirementLabel }}</span>
                </li>
              </ul>
            </div>

            <div v-if="structureSelections.products.length" class="space-y-2">
              <h3 class="font-semibold text-sm text-base-content">Produits choisis</h3>
              <ul class="list-disc list-inside space-y-1 text-sm">
                <li v-for="entry in structureSelections.products" :key="`selected-product-${entry.path}-${entry.id}`">
                  <span class="font-medium">{{ entry.resolvedName }}</span>
                  <span class="text-xs text-base-content/70"> — {{ entry.requirementLabel }}</span>
                </li>
              </ul>
            </div>

            <div v-if="structureSelections.components.length" class="space-y-2">
              <h3 class="font-semibold text-sm text-base-content">Sous-composants choisis</h3>
              <ul class="list-disc list-inside space-y-1 text-sm">
                <li v-for="entry in structureSelections.components" :key="`selected-component-${entry.path}-${entry.id}`">
                  <span class="font-medium">{{ entry.resolvedName }}</span>
                  <span class="text-xs text-base-content/70"> — {{ entry.requirementLabel }}</span>
                </li>
              </ul>
            </div>
          </div>
        </div>

        <div v-if="customFieldInputs.length" class="space-y-4 rounded-lg border border-base-200 bg-base-200/40 p-4">
          <header class="space-y-1">
            <h2 class="font-semibold text-base-content">Champs personnalisés</h2>
            <p class="text-xs text-base-content/70">
              Mettez à jour les valeurs propres à ce composant.
            </p>
          </header>
          <CustomFieldInputGrid :fields="customFieldInputs" :disabled="!canEdit || saving" />
        </div>

        <div class="space-y-4 rounded-lg border border-base-200 bg-base-200/40 p-4">
          <header class="flex flex-col gap-1 md:flex-row md:items-center md:justify-between">
            <div>
              <h2 class="font-semibold text-base-content">Documents</h2>
              <p class="text-xs text-base-content/70">
                Gérez les documents associés à ce composant.
              </p>
            </div>
            <span v-if="selectedFiles.length" class="badge badge-outline">
              {{ selectedFiles.length }} document{{ selectedFiles.length > 1 ? 's' : '' }} prêt{{ selectedFiles.length > 1 ? 's' : '' }} à être ajouté{{ selectedFiles.length > 1 ? 's' : '' }}
            </span>
          </header>
          <div :class="{ 'pointer-events-none opacity-60': !canEdit || saving || uploadingDocuments }">
            <DocumentUpload
              v-model="selectedFiles"
              title="Déposer vos fichiers"
              subtitle="Formats acceptés : PDF, images, documents…"
              @files-added="handleFilesAdded"
            />
          </div>
          <p v-if="uploadingDocuments" class="text-xs text-base-content/70">
            Téléversement des documents en cours…
          </p>
          <p v-else-if="loadingDocuments" class="text-xs text-base-content/70">
            Chargement des documents en cours…
          </p>
          <DocumentListInline
            v-else
            :documents="componentDocuments"
            :can-delete="canEdit"
            :delete-disabled="uploadingDocuments"
            empty-text="Aucun document n'est associé à ce composant pour le moment."
            @preview="openPreview"
            @delete="removeDocument"
          />
        </div>

        <EntityHistorySection
          :entries="history"
          :loading="historyLoading"
          :error="historyError"
          :field-labels="historyFieldLabels"
        />

        <div class="flex flex-col gap-3 md:flex-row md:justify-end">
          <NuxtLink to="/component-catalog" class="btn btn-ghost" :class="{ 'btn-disabled': saving }">
            Annuler
          </NuxtLink>
          <button type="button" class="btn btn-primary" :disabled="!canSubmit" @click="submitEdition">
            <span v-if="saving" class="loading loading-spinner loading-sm mr-2" />
            Enregistrer les modifications
          </button>
        </div>

        <!-- Comments -->
        <div class="mt-4">
          <CommentSection
            entity-type="composant"
            :entity-id="String(route.params.id)"
            :entity-name="component?.name"
            show-resolved
          />
        </div>
      </div>
    </section>
  </main>
</template>

<script setup lang="ts">
import { computed, onMounted, reactive, ref, watch } from 'vue'
import { useRoute, useRouter } from '#imports'
import ConstructeurSelect from '~/components/ConstructeurSelect.vue'
import DocumentUpload from '~/components/DocumentUpload.vue'
import DocumentPreviewModal from '~/components/DocumentPreviewModal.vue'
import { useComponentTypes } from '~/composables/useComponentTypes'
import { useComposants } from '~/composables/useComposants'
import { usePieceTypes } from '~/composables/usePieceTypes'
import { useProductTypes } from '~/composables/useProductTypes'
import { usePieces } from '~/composables/usePieces'
import { useProducts } from '~/composables/useProducts'
import { useCustomFields } from '~/composables/useCustomFields'
import { useApi } from '~/composables/useApi'
import { useToast } from '~/composables/useToast'
import { extractRelationId } from '~/shared/apiRelations'
import { useDocuments } from '~/composables/useDocuments'
import { useConstructeurs } from '~/composables/useConstructeurs'
import { useComponentHistory } from '~/composables/useComponentHistory'
import { formatStructurePreview, normalizeStructureForEditor } from '~/shared/modelUtils'
import { uniqueConstructeurIds } from '~/shared/constructeurUtils'
import {
  getStructurePieces,
  getStructureProducts,
  resolvePieceLabel as _resolvePieceLabel,
  resolveProductLabel as _resolveProductLabel,
  resolveSubcomponentLabel,
  fetchModelTypeNames,
  buildTypeLabelMap,
} from '~/shared/utils/structureDisplayUtils'
import type { ComponentModelStructure } from '~/shared/types/inventory'
import type { ModelType } from '~/services/modelTypes'
import { canPreviewDocument } from '~/utils/documentPreview'
import {
  type CustomFieldInput,
  buildCustomFieldInputs,
  requiredCustomFieldsFilled as _requiredCustomFieldsFilled,
  saveCustomFieldValues as _saveCustomFieldValues,
} from '~/shared/utils/customFieldFormUtils'

interface ComponentCatalogType extends ModelType {
  structure: ComponentModelStructure | null
  customFields?: Array<Record<string, any>>
}

const { canEdit } = usePermissions()
const route = useRoute()
const router = useRouter()
const { get } = useApi()
const { componentTypes, loadComponentTypes } = useComponentTypes()
const { pieceTypes, loadPieceTypes } = usePieceTypes()
const { productTypes, loadProductTypes } = useProductTypes()
const { updateComposant, loadComposants, composants: componentCatalogRef } = useComposants()
const { pieces, loadPieces } = usePieces()
const { products, loadProducts } = useProducts()
const { ensureConstructeurs } = useConstructeurs()
const { upsertCustomFieldValue, updateCustomFieldValue } = useCustomFields()
const toast = useToast()
const { loadDocumentsByComponent, uploadDocuments, deleteDocument } = useDocuments()
const {
  history,
  loading: historyLoading,
  error: historyError,
  loadHistory,
} = useComponentHistory()

const component = ref<any | null>(null)
const loading = ref(true)
const saving = ref(false)
const selectedFiles = ref<File[]>([])
const uploadingDocuments = ref(false)
const loadingDocuments = ref(false)
const componentDocuments = ref<any[]>([])
const previewDocument = ref<any | null>(null)
const previewVisible = ref(false)

const historyFieldLabels: Record<string, string> = {
  name: 'Nom',
  reference: 'Référence',
  prix: 'Prix',
  structure: 'Structure',
  typeComposant: 'Catégorie',
  product: 'Produit lié',
  constructeurIds: 'Fournisseurs',
}

const selectedTypeId = ref<string>('')
const editionForm = reactive({
  name: '' as string,
  description: '' as string,
  reference: '' as string,
  constructeurIds: [] as string[],
  prix: '' as string,
})

const customFieldInputs = ref<CustomFieldInput[]>([])
const fetchedPieceTypeMap = ref<Record<string, string>>({})
const pieceTypeLabelMap = computed(() =>
  buildTypeLabelMap(pieceTypes.value, fetchedPieceTypeMap.value),
)
const fetchedProductTypeMap = ref<Record<string, string>>({})
const productTypeLabelMap = computed(() =>
  buildTypeLabelMap(productTypes.value, fetchedProductTypeMap.value),
)
const pieceCatalogMap = computed(() =>
  new Map(
    (pieces.value || [])
      .filter((item: any) => item?.id)
      .map((item: any) => [String(item.id), item]),
  ),
)
const productCatalogMap = computed(() =>
  new Map(
    (products.value || [])
      .filter((item: any) => item?.id)
      .map((item: any) => [String(item.id), item]),
  ),
)
const componentCatalogMap = computed(() =>
  new Map(
    (componentCatalogRef.value || [])
      .filter((item: any) => item?.id)
      .map((item: any) => [String(item.id), item]),
  ),
)
const openPreview = (doc: any) => {
  if (!doc || !canPreviewDocument(doc)) {
    return
  }
  previewDocument.value = doc
  previewVisible.value = true
}
const closePreview = () => {
  previewVisible.value = false
  previewDocument.value = null
}
const removeDocument = async (documentId: string | number | null | undefined) => {
  if (!documentId) {
    return
  }
  const result = await deleteDocument(documentId, { updateStore: false })
  if (result.success) {
    componentDocuments.value = componentDocuments.value.filter((doc) => doc.id !== documentId)
  }
}
const handleFilesAdded = async (files: File[]) => {
  if (!files?.length || !component.value?.id) {
    return
  }
  uploadingDocuments.value = true
  try {
    const result = await uploadDocuments(
      {
        files,
        context: { composantId: component.value.id },
      },
      { updateStore: false },
    )
    if (result.success) {
      selectedFiles.value = []
      await refreshDocuments()
    }
  } finally {
    uploadingDocuments.value = false
  }
}
const refreshDocuments = async () => {
  if (!component.value?.id) {
    componentDocuments.value = []
    return
  }
  loadingDocuments.value = true
  try {
    const result = await loadDocumentsByComponent(component.value.id, { updateStore: false })
    if (result.success) {
      componentDocuments.value = Array.isArray(result.data) ? result.data : result.data ? [result.data] : []
    }
  } finally {
    loadingDocuments.value = false
  }
}

const componentTypeList = computed<ComponentCatalogType[]>(() =>
  (componentTypes.value || [])
    .filter((item: any) => item?.category === 'COMPONENT') as ComponentCatalogType[],
)

const selectedType = computed(() => {
  if (!selectedTypeId.value) {
    return null
  }
  return componentTypeList.value.find((type) => type.id === selectedTypeId.value) ?? null
})

const selectedTypeStructure = computed<ComponentModelStructure | null>(() => {
  const structure = selectedType.value?.structure ?? null
  return structure ? normalizeStructureForEditor(structure) : null
})

const refreshCustomFieldInputs = (
  structureOverride?: ComponentModelStructure | null,
  valuesOverride?: any[] | null,
) => {
  const structure = structureOverride ?? selectedTypeStructure.value ?? null
  const values = valuesOverride ?? component.value?.customFieldValues ?? null
  customFieldInputs.value = buildCustomFieldInputs(structure, values)
}

const requiredCustomFieldsFilled = computed(() =>
  _requiredCustomFieldsFilled(customFieldInputs.value),
)

const canSubmit = computed(() => Boolean(
  canEdit.value &&
  component.value &&
  editionForm.name &&
  requiredCustomFieldsFilled.value &&
  !saving.value,
))

const fetchComponent = async () => {
  const id = route.params.id
  if (!id || typeof id !== 'string') {
    component.value = null
    componentDocuments.value = []
    return
  }
  const result = await get(`/composants/${id}`)
  if (result.success) {
    component.value = result.data
    componentDocuments.value = Array.isArray(result.data?.documents) ? result.data.documents : []

    const customValues = Array.isArray(result.data?.customFieldValues) ? result.data.customFieldValues : []
    refreshCustomFieldInputs(undefined, customValues)

    loadHistory(result.data.id).catch(() => {})
  } else {
    component.value = null
    componentDocuments.value = []
  }
}

const initialized = ref(false)

watch(
  [component, selectedTypeStructure],
  ([currentComponent, currentStructure]) => {
    if (!currentComponent) {
      return
    }

    if (!initialized.value) {
      const resolvedTypeId = currentComponent.typeComposantId
        || extractRelationId(currentComponent.typeComposant)
        || ''
      if (resolvedTypeId && !currentComponent.typeComposantId) {
        currentComponent.typeComposantId = resolvedTypeId
      }
      selectedTypeId.value = resolvedTypeId

      editionForm.name = currentComponent.name || ''
      editionForm.description = currentComponent.description || ''
      editionForm.reference = currentComponent.reference || ''
      editionForm.constructeurIds = uniqueConstructeurIds(
        currentComponent,
        Array.isArray(currentComponent.constructeurs) ? currentComponent.constructeurs : [],
        currentComponent.constructeur ? [currentComponent.constructeur] : [],
      )
      editionForm.prix = currentComponent.prix !== null && currentComponent.prix !== undefined ? String(currentComponent.prix) : ''
      if (editionForm.constructeurIds.length) {
        void ensureConstructeurs(editionForm.constructeurIds)
      }

      initialized.value = true
    }

    refreshCustomFieldInputs(selectedTypeStructure.value ?? currentStructure, currentComponent.customFieldValues)
  },
  { immediate: true },
)

const submitEdition = async () => {
  if (!component.value) {
    return
  }

  const rawPrice = typeof editionForm.prix === 'string'
    ? editionForm.prix.trim()
    : editionForm.prix === null || editionForm.prix === undefined
      ? ''
      : String(editionForm.prix).trim()

  const payload: Record<string, any> = {
    name: editionForm.name.trim(),
    description: editionForm.description.trim() || null,
  }

  const reference = editionForm.reference.trim()
  payload.reference = reference ? reference : null
  payload.constructeurIds = uniqueConstructeurIds(editionForm.constructeurIds)

  if (rawPrice) {
    const parsed = Number(rawPrice)
    if (!Number.isNaN(parsed)) {
      payload.prix = String(parsed)
    }
  } else {
    payload.prix = null
  }

  saving.value = true
  try {
    const result = await updateComposant(component.value.id, payload)
    if (result.success && result.data) {
      const updatedComponent = result.data as Record<string, any>
      await _saveCustomFieldValues(
        'composant',
        updatedComponent.id,
        [
          updatedComponent?.typeComposant?.customFields,
        ],
        { customFieldInputs, upsertCustomFieldValue, updateCustomFieldValue, toast },
      )
      await router.push('/component-catalog')
    }
  } catch (error: any) {
    toast.showError(error?.message || 'Erreur lors de la mise à jour du composant')
  } finally {
    saving.value = false
  }
}

const isNonEmptyString = (value: unknown): value is string =>
  typeof value === 'string' && value.trim().length > 0

const resolvePieceLabel = (piece: Record<string, any>) =>
  _resolvePieceLabel(piece, pieceTypeLabelMap.value)

const resolveProductLabel = (product: Record<string, any>) =>
  _resolveProductLabel(product, productTypeLabelMap.value)

watch(
  selectedTypeStructure,
  (structure) => {
    const pieceIds = getStructurePieces(structure)
      .map((piece: any) => piece?.typePieceId)
      .filter((id: any): id is string => typeof id === 'string' && id.trim().length > 0)
    if (pieceIds.length) {
      fetchModelTypeNames(Array.from(new Set(pieceIds)), pieceTypeLabelMap.value, get)
        .then((additions) => {
          if (Object.keys(additions).length) {
            fetchedPieceTypeMap.value = { ...fetchedPieceTypeMap.value, ...additions }
          }
        })
        .catch(() => {})
    }

    const productIds = getStructureProducts(structure)
      .map((product: any) => product?.typeProductId)
      .filter((id: any): id is string => typeof id === 'string' && id.trim().length > 0)
    if (productIds.length) {
      fetchModelTypeNames(Array.from(new Set(productIds)), productTypeLabelMap.value, get)
        .then((additions) => {
          if (Object.keys(additions).length) {
            fetchedProductTypeMap.value = { ...fetchedProductTypeMap.value, ...additions }
          }
        })
        .catch(() => {})
    }
  },
  { immediate: true },
)

type SelectionEntry = {
  id: string
  path: string
  requirementLabel: string
  resolvedName: string
}

const collectStructureSelections = (root: any): {
  pieces: SelectionEntry[]
  products: SelectionEntry[]
  components: SelectionEntry[]
} => {
  const piecesSelected: SelectionEntry[] = []
  const productsSelected: SelectionEntry[] = []
  const componentsSelected: SelectionEntry[] = []

  if (!root || typeof root !== 'object') {
    return { pieces: piecesSelected, products: productsSelected, components: componentsSelected }
  }

  const visitNode = (node: any, fallbackPath = 'racine') => {
    if (!node || typeof node !== 'object') {
      return
    }

    const nodePath = isNonEmptyString(node.path) ? node.path : fallbackPath

    const nodePieces = Array.isArray(node.pieces) ? node.pieces : []
    nodePieces.forEach((entry: any, index: number) => {
      const selectedId = entry?.selectedPieceId
      if (!isNonEmptyString(selectedId)) {
        return
      }
      const definition = entry?.definition ?? entry
      const catalogPiece = pieceCatalogMap.value.get(selectedId)
      piecesSelected.push({
        id: selectedId,
        path: isNonEmptyString(entry?.path) ? entry.path : `${nodePath}:piece-${index + 1}`,
        requirementLabel: resolvePieceLabel(definition),
        resolvedName: catalogPiece?.name || selectedId,
      })
    })

    const nodeProducts = Array.isArray(node.products) ? node.products : []
    nodeProducts.forEach((entry: any, index: number) => {
      const selectedId = entry?.selectedProductId
      if (!isNonEmptyString(selectedId)) {
        return
      }
      const definition = entry?.definition ?? entry
      const catalogProduct = productCatalogMap.value.get(selectedId)
      productsSelected.push({
        id: selectedId,
        path: isNonEmptyString(entry?.path) ? entry.path : `${nodePath}:product-${index + 1}`,
        requirementLabel: resolveProductLabel(definition),
        resolvedName: catalogProduct?.name || selectedId,
      })
    })

    const nodeChildren = Array.isArray(node.subcomponents)
      ? node.subcomponents
      : Array.isArray(node.subComponents)
        ? node.subComponents
        : []

    nodeChildren.forEach((child: any, index: number) => {
      const selectedId = child?.selectedComponentId
      if (isNonEmptyString(selectedId)) {
        const definition = child?.definition ?? child
        const catalogComponent = componentCatalogMap.value.get(selectedId)
        componentsSelected.push({
          id: selectedId,
          path: isNonEmptyString(child?.path) ? child.path : `${nodePath}:subcomponent-${index + 1}`,
          requirementLabel: resolveSubcomponentLabel(definition),
          resolvedName: catalogComponent?.name || selectedId,
        })
      }

      visitNode(child, isNonEmptyString(child?.path) ? child.path : `${nodePath}:subcomponent-${index + 1}`)
    })
  }

  visitNode(root, isNonEmptyString(root?.path) ? root.path : 'racine')

  return { pieces: piecesSelected, products: productsSelected, components: componentsSelected }
}

const structureSelections = computed(() => {
  const selections = collectStructureSelections(component.value?.structure)
  const total =
    selections.pieces.length + selections.products.length + selections.components.length
  return {
    ...selections,
    total,
    hasAny: total > 0,
  }
})

onMounted(async () => {
  await Promise.allSettled([
    loadComponentTypes(),
    loadPieceTypes(),
    loadProductTypes(),
    fetchComponent(),
  ])
  loading.value = false

  // Defer bulk catalog loads — only needed when component has structure selections
  if (component.value?.structure) {
    Promise.allSettled([
      loadPieces({ itemsPerPage: 200 }),
      loadProducts({ itemsPerPage: 200 }),
      loadComposants({ itemsPerPage: 200 }),
    ]).catch(() => {})
  }
})
</script>
