<template>
  <div class="border border-base-200 rounded-lg bg-base-100" :class="depthPadding">
    <div class="flex items-start justify-between gap-3 border-b border-base-200 px-4 py-3">
      <div class="flex flex-col gap-1 flex-1">
        <div class="flex items-center gap-2">
          <button type="button" class="btn btn-ghost btn-xs" @click="toggle">
            <IconLucideChevronRight
              class="w-4 h-4 transition-transform"
              :class="{ 'rotate-90': expanded }"
              aria-hidden="true"
            />
          </button>
          <input
            v-model="node.name"
            type="text"
            class="input input-sm input-bordered w-full"
            placeholder="Nom du sous-composant"
          />
        </div>
        <span v-if="!expanded && node.description" class="text-xs text-gray-500 truncate">
          {{ node.description }}
        </span>
      </div>
      <button type="button" class="btn btn-error btn-xs btn-square" @click="emit('remove')">
        <IconLucideTrash class="w-4 h-4" aria-hidden="true" />
      </button>
    </div>

    <div v-if="expanded" class="space-y-5 px-4 py-4">
      <div class="grid grid-cols-1 md:grid-cols-2 gap-3">
        <div class="form-control">
          <label class="label"><span class="label-text">Description</span></label>
          <textarea
            v-model="node.description"
            class="textarea textarea-bordered textarea-sm"
            rows="2"
            placeholder="Notes optionnelles"
          ></textarea>
        </div>
        <div class="form-control">
          <label class="label"><span class="label-text">Quantité</span></label>
          <input
            v-model.number="node.quantity"
            type="number"
            min="0"
            step="1"
            class="input input-bordered input-sm"
            placeholder="Quantité (optionnel)"
          />
        </div>
      </div>

      <section class="space-y-2">
        <h4 class="text-sm font-semibold">Champs personnalisés</h4>
        <p v-if="!(node.customFields?.length)" class="text-xs text-gray-500">
          Aucun champ défini.
        </p>
        <div v-else class="space-y-2">
          <div
            v-for="(field, fieldIndex) in node.customFields"
            :key="`sub-${depth}-${fieldIndex}`"
            class="border border-base-200 rounded-md p-3 space-y-2"
          >
            <div class="flex items-start justify-between gap-2">
              <div class="flex-1 space-y-2">
                <div class="grid grid-cols-1 md:grid-cols-2 gap-2">
                  <input
                    v-model="field.name"
                    type="text"
                    class="input input-bordered input-xs"
                    placeholder="Nom du champ"
                  />
                  <select v-model="field.type" class="select select-bordered select-xs">
                    <option value="text">Texte</option>
                    <option value="number">Nombre</option>
                    <option value="select">Liste</option>
                    <option value="boolean">Oui/Non</option>
                    <option value="date">Date</option>
                  </select>
                </div>
                <div class="flex items-center gap-2 text-xs">
                  <input v-model="field.required" type="checkbox" class="checkbox checkbox-xs" />
                  Obligatoire
                </div>
                <textarea
                  v-if="field.type === 'select'"
                  v-model="field.optionsText"
                  class="textarea textarea-bordered textarea-xs h-20"
                  placeholder="Option 1&#10;Option 2"
                ></textarea>
              </div>
              <button type="button" class="btn btn-error btn-xs btn-square" @click="removeCustomField(fieldIndex)">
                <IconLucideTrash class="w-4 h-4" aria-hidden="true" />
              </button>
            </div>
          </div>
        </div>
        <button type="button" class="btn btn-outline btn-xs" @click="addCustomField">
          <IconLucidePlus class="w-3 h-3 mr-2" aria-hidden="true" />
          Ajouter un champ
        </button>
      </section>

      <section class="space-y-2">
        <h4 class="text-sm font-semibold">Pièces associées</h4>
        <p v-if="!(node.pieces?.length)" class="text-xs text-gray-500">Aucune pièce définie.</p>
        <div v-else class="space-y-2">
          <div
            v-for="(piece, pieceIndex) in node.pieces"
            :key="`piece-${depth}-${pieceIndex}`"
            class="border border-base-200 rounded-md p-3 space-y-3"
          >
            <div class="flex items-start justify-between gap-2">
              <div class="flex-1 space-y-3">
                <div class="grid grid-cols-1 md:grid-cols-3 gap-2">
                  <input
                    v-model="piece.name"
                    type="text"
                    class="input input-bordered input-xs"
                    placeholder="Nom de la pièce"
                  />
                  <input
                    v-model="piece.reference"
                    type="text"
                    class="input input-bordered input-xs"
                    placeholder="Référence"
                  />
                  <input
                    v-model.number="piece.quantity"
                    type="number"
                    min="0"
                    step="1"
                    class="input input-bordered input-xs"
                    placeholder="Quantité"
                  />
                </div>
                <div class="form-control">
                  <label class="label"><span class="label-text">Famille de pièce</span></label>
                  <div>
                    <input
                      :list="getPieceTypeListId(pieceIndex)"
                      v-model="piece.typePieceLabel"
                      type="search"
                      autocomplete="off"
                      class="input input-bordered input-xs"
                      placeholder="Rechercher une famille"
                      @change="handlePieceTypeChange(piece)"
                      @blur="handlePieceTypeChange(piece)"
                    />
                    <datalist :id="getPieceTypeListId(pieceIndex)">
                      <option
                        v-for="type in pieceTypes"
                        :key="type.id"
                        :value="formatPieceTypeOption(type)"
                      />
                    </datalist>
                  </div>
                  <p class="mt-1 text-[11px] text-gray-500">
                    {{ piece.typePieceId ? `Sélection : ${getPieceTypeLabel(piece.typePieceId) || 'Inconnue'}` : 'Aucune famille sélectionnée' }}
                  </p>
                </div>
              </div>
              <button type="button" class="btn btn-error btn-xs btn-square" @click="removePiece(pieceIndex)">
                <IconLucideTrash class="w-4 h-4" aria-hidden="true" />
              </button>
            </div>
          </div>
        </div>
        <button type="button" class="btn btn-outline btn-xs" @click="addPiece">
          <IconLucidePlus class="w-3 h-3 mr-2" aria-hidden="true" />
          Ajouter une pièce
        </button>
      </section>

      <section class="space-y-3">
        <div class="flex items-center justify-between">
          <h4 class="text-sm font-semibold">Sous-composants</h4>
          <button type="button" class="btn btn-outline btn-xs" @click="addSubComponent">
            <IconLucidePlus class="w-3 h-3 mr-2" aria-hidden="true" />
            Ajouter
          </button>
        </div>
        <p v-if="!(node.subComponents?.length)" class="text-xs text-gray-500">Aucun sous-composant défini.</p>
        <div v-else class="space-y-3">
          <StructureSubComponentEditor
            v-for="(sub, index) in node.subComponents"
            :key="`sub-${depth}-${index}`"
            :node="sub"
            :depth="depth + 1"
            :piece-types="pieceTypes"
            @remove="removeSubComponent(index)"
          />
        </div>
      </section>
    </div>
  </div>
</template>

<script setup lang="ts">
import { computed, ref, watch } from 'vue'
import IconLucideChevronRight from '~icons/lucide/chevron-right'
import IconLucidePlus from '~icons/lucide/plus'
import IconLucideTrash from '~icons/lucide/trash'

defineOptions({ name: 'StructureSubComponentEditor' })

type PieceTypeOption = {
  id: string
  name: string
  code?: string | null
}

const props = withDefaults(defineProps<{
  node: Record<string, any>
  depth?: number
  pieceTypes?: PieceTypeOption[]
}>(), {
  depth: 0,
  pieceTypes: () => [],
})

const emit = defineEmits(['remove'])

const pieceTypeMap = computed(() => {
  const map = new Map<string, PieceTypeOption>()
  ;(props.pieceTypes ?? []).forEach((type) => {
    if (type && typeof type.id === 'string') {
      map.set(type.id, type)
    }
  })
  return map
})

const formatPieceTypeOption = (type: PieceTypeOption | undefined | null) => {
  if (!type) return ''
  return type.code ? `${type.name} (${type.code})` : type.name
}

const resolvePieceType = (input: string) => {
  const normalized = input.trim().toLowerCase()
  if (!normalized) {
    return null
  }
  return (
    (props.pieceTypes ?? []).find((type) => {
      const formatted = formatPieceTypeOption(type).toLowerCase()
      const name = (type?.name ?? '').toLowerCase()
      const code = (type?.code ?? '').toLowerCase()
      return (
        formatted === normalized
        || name === normalized
        || (!!code && code === normalized)
      )
    }) ?? null
  )
}

const getPieceTypeLabel = (id?: string) => {
  if (!id) return ''
  const option = pieceTypeMap.value.get(id)
  return formatPieceTypeOption(option)
}

const updatePieceTypeLabel = (piece: any) => {
  if (!piece) {
    return
  }
  if (piece.typePieceId) {
    const option = pieceTypeMap.value.get(piece.typePieceId)
    piece.typePieceLabel = option ? formatPieceTypeOption(option) : piece.typePieceLabel || ''
  } else if (piece.typePieceLabel) {
    const match = resolvePieceType(piece.typePieceLabel)
    if (match) {
      piece.typePieceId = match.id
      piece.typePieceLabel = formatPieceTypeOption(match)
    }
  }
}

const handlePieceTypeChange = (piece: any) => {
  if (!piece) {
    return
  }
  const value = typeof piece.typePieceLabel === 'string' ? piece.typePieceLabel.trim() : ''
  if (!value) {
    piece.typePieceId = ''
    piece.typePieceLabel = ''
    return
  }
  const match = resolvePieceType(value)
  if (match) {
    piece.typePieceId = match.id
    piece.typePieceLabel = formatPieceTypeOption(match)
  } else {
    piece.typePieceId = ''
  }
}

const getPieceTypeListId = (pieceIndex: number) => `sub-piece-type-options-${props.depth ?? 0}-${pieceIndex}`

const applyPieceLabels = (pieces?: any[]) => {
  if (!Array.isArray(pieces)) {
    return
  }
  pieces.forEach((piece) => {
    if (piece?.typePieceId) {
      updatePieceTypeLabel(piece)
    } else if (piece?.typePieceLabel) {
      const match = resolvePieceType(piece.typePieceLabel)
      if (match) {
        piece.typePieceId = match.id
        piece.typePieceLabel = formatPieceTypeOption(match)
      }
    }
  })
}

const traverseSubComponents = (components?: any[]) => {
  if (!Array.isArray(components)) {
    return
  }
  components.forEach((component) => {
    applyPieceLabels(component?.pieces)
    traverseSubComponents(component?.subComponents)
  })
}

const syncPieceTypeLabels = () => {
  applyPieceLabels(props.node?.pieces)
  traverseSubComponents(props.node?.subComponents)
}

watch(
  () => props.pieceTypes,
  () => {
    syncPieceTypeLabels()
  },
  { deep: true, immediate: true }
)

watch(
  () => props.node,
  () => {
    syncPieceTypeLabels()
  },
  { deep: true }
)

const expanded = ref(true)
const depthPadding = computed(() => (props.depth > 0 ? 'ml-4' : ''))

const toggle = () => {
  expanded.value = !expanded.value
}

const ensureArray = (key: 'customFields' | 'pieces' | 'subComponents') => {
  if (!Array.isArray(props.node[key])) {
    props.node[key] = []
  }
}

const addCustomField = () => {
  ensureArray('customFields')
  props.node.customFields.push({
    name: '',
    type: 'text',
    required: false,
    optionsText: '',
    options: [],
  })
}

const removeCustomField = (index: number) => {
  if (!Array.isArray(props.node.customFields)) return
  props.node.customFields.splice(index, 1)
}

const addPiece = () => {
  ensureArray('pieces')
  props.node.pieces.push({
    name: '',
    reference: '',
    quantity: undefined,
    typePieceId: '',
    typePieceLabel: '',
  })
}

const removePiece = (index: number) => {
  if (!Array.isArray(props.node.pieces)) return
  props.node.pieces.splice(index, 1)
}

const addSubComponent = () => {
  ensureArray('subComponents')
  props.node.subComponents.push({
    name: '',
    description: '',
    quantity: undefined,
    customFields: [],
    pieces: [],
    subComponents: [],
  })
}

const removeSubComponent = (index: number) => {
  if (!Array.isArray(props.node.subComponents)) return
  props.node.subComponents.splice(index, 1)
}
</script>
