'use client'
import type { FC } from 'react'
import type {
  BuiltInMetadataItem,
  MetadataItemWithValueLength,
} from '@/app/components/datasets/metadata/types'
import type { SortType } from '@/service/datasets'
import { Button } from '@langgenius/dify-ui/button'
import { useMemo } from 'react'
import { useTranslation } from 'react-i18next'
import Chip from '@/app/components/base/chip'
import Input from '@/app/components/base/input'
import Sort from '@/app/components/base/sort'
import AutoDisabledDocument from '@/app/components/datasets/common/document-status-with-action/auto-disabled-document'
import IndexFailed from '@/app/components/datasets/common/document-status-with-action/index-failed'
import StatusWithAction from '@/app/components/datasets/common/document-status-with-action/status-with-action'
import DatasetMetadataDrawer from '@/app/components/datasets/metadata/metadata-dataset/dataset-metadata-drawer'
import { useDocLink } from '@/context/i18n'
import { DataSourceType } from '@/models/datasets'
import { useIndexStatus } from '../status-item/hooks'

type SelectOption = {
  value: string | number
  name: string
}

type DocumentsHeaderProps = {
  // Dataset info
  datasetId: string
  dataSourceType?: DataSourceType
  embeddingAvailable: boolean
  canManageMetadata?: boolean
  canAddDocument?: boolean
  canEditDocument?: boolean
  isFreePlan: boolean

  // Filter & sort
  statusFilterValue: string
  sortValue: SortType
  inputValue: string
  onStatusFilterChange: (value: string) => void
  onStatusFilterClear: () => void
  onSortChange: (value: string) => void
  onInputChange: (value: string) => void

  // Metadata modal
  isShowEditMetadataModal: boolean
  showEditMetadataModal: () => void
  hideEditMetadataModal: () => void
  datasetMetaData?: MetadataItemWithValueLength[]
  builtInMetaData?: BuiltInMetadataItem[]
  builtInEnabled: boolean
  onAddMetaData: (payload: BuiltInMetadataItem) => Promise<void>
  onRenameMetaData: (payload: MetadataItemWithValueLength) => Promise<void>
  onDeleteMetaData: (metaDataId: string) => Promise<void>
  onBuiltInEnabledChange: (enabled: boolean) => void

  // Actions
  onAddDocument: () => void
}

const DocumentsHeader: FC<DocumentsHeaderProps> = ({
  datasetId,
  dataSourceType,
  embeddingAvailable,
  canManageMetadata = false,
  canAddDocument = false,
  canEditDocument = false,
  isFreePlan,
  statusFilterValue,
  sortValue,
  inputValue,
  onStatusFilterChange,
  onStatusFilterClear,
  onSortChange,
  onInputChange,
  isShowEditMetadataModal,
  showEditMetadataModal,
  hideEditMetadataModal,
  datasetMetaData,
  builtInMetaData,
  builtInEnabled,
  onAddMetaData,
  onRenameMetaData,
  onDeleteMetaData,
  onBuiltInEnabledChange,
  onAddDocument,
}) => {
  const { t } = useTranslation()
  const docLink = useDocLink()
  const DOC_INDEX_STATUS_MAP = useIndexStatus()

  const isDataSourceNotion = dataSourceType === DataSourceType.NOTION
  const isDataSourceWeb = dataSourceType === DataSourceType.WEB

  const statusFilterItems: SelectOption[] = useMemo(
    () => [
      { value: 'all', name: t(($) => $['list.index.all'], { ns: 'datasetDocuments' }) as string },
      { value: 'queuing', name: DOC_INDEX_STATUS_MAP.queuing.text },
      { value: 'indexing', name: DOC_INDEX_STATUS_MAP.indexing.text },
      { value: 'paused', name: DOC_INDEX_STATUS_MAP.paused.text },
      { value: 'error', name: DOC_INDEX_STATUS_MAP.error.text },
      { value: 'available', name: DOC_INDEX_STATUS_MAP.available.text },
      { value: 'enabled', name: DOC_INDEX_STATUS_MAP.enabled.text },
      { value: 'disabled', name: DOC_INDEX_STATUS_MAP.disabled.text },
      { value: 'archived', name: DOC_INDEX_STATUS_MAP.archived.text },
    ],
    [DOC_INDEX_STATUS_MAP, t],
  )

  const sortItems: SelectOption[] = useMemo(
    () => [
      {
        value: 'created_at',
        name: t(($) => $['list.sort.uploadTime'], { ns: 'datasetDocuments' }) as string,
      },
      {
        value: 'hit_count',
        name: t(($) => $['list.sort.hitCount'], { ns: 'datasetDocuments' }) as string,
      },
    ],
    [t],
  )

  // Determine add button text based on data source type
  const addButtonText = useMemo(() => {
    if (isDataSourceNotion) return t(($) => $['list.addPages'], { ns: 'datasetDocuments' })
    if (isDataSourceWeb) return t(($) => $['list.addUrl'], { ns: 'datasetDocuments' })
    return t(($) => $['list.addFile'], { ns: 'datasetDocuments' })
  }, [isDataSourceNotion, isDataSourceWeb, t])

  return (
    <>
      {/* Title section */}
      <div className="flex flex-col justify-center gap-1 px-6 pt-4">
        <h1 className="text-base font-semibold text-text-primary">
          {t(($) => $['list.title'], { ns: 'datasetDocuments' })}
        </h1>
        <div className="flex items-center space-x-0.5 text-sm font-normal text-text-tertiary">
          <span>{t(($) => $['list.desc'], { ns: 'datasetDocuments' })}</span>
          <a
            className="flex items-center text-text-accent"
            target="_blank"
            rel="noopener noreferrer"
            href={docLink('/use-dify/knowledge/integrate-knowledge-within-application')}
          >
            <span>{t(($) => $['list.learnMore'], { ns: 'datasetDocuments' })}</span>
            <span className="i-ri-external-link-line size-3" />
          </a>
        </div>
      </div>

      {/* Toolbar section */}
      <div className="flex flex-wrap items-center justify-between px-6 pt-4">
        {/* Left: Filters */}
        <div className="flex items-center gap-2">
          <Chip
            className="w-[160px]"
            showLeftIcon={false}
            value={statusFilterValue}
            items={statusFilterItems}
            onSelect={(item) => onStatusFilterChange(item?.value ? String(item.value) : '')}
            onClear={onStatusFilterClear}
          />
          <Input
            showLeftIcon
            showClearIcon
            wrapperClassName="w-[200px]!"
            value={inputValue}
            onChange={(e) => onInputChange(e.target.value)}
            onClear={() => onInputChange('')}
          />
          <div className="h-3.5 w-px bg-divider-regular"></div>
          <Sort
            order={sortValue.startsWith('-') ? '-' : ''}
            value={sortValue.replace('-', '')}
            items={sortItems}
            onSelect={(value) => onSortChange(String(value))}
          />
        </div>

        {/* Right: Actions */}
        <div className="flex h-8! items-center justify-center gap-2">
          {!isFreePlan && canEditDocument && <AutoDisabledDocument datasetId={datasetId} />}
          {canEditDocument && <IndexFailed datasetId={datasetId} />}
          {!embeddingAvailable && (
            <StatusWithAction
              type="warning"
              description={t(($) => $.embeddingModelNotAvailable, { ns: 'dataset' })}
            />
          )}
          {embeddingAvailable && canManageMetadata && (
            <Button variant="secondary" className="shrink-0" onClick={showEditMetadataModal}>
              <span className="mr-1 i-ri-draft-line size-4" />
              {t(($) => $['metadata.metadata'], { ns: 'dataset' })}
            </Button>
          )}
          {isShowEditMetadataModal && (
            <DatasetMetadataDrawer
              userMetadata={datasetMetaData ?? []}
              onClose={hideEditMetadataModal}
              onAdd={onAddMetaData}
              onRename={onRenameMetaData}
              onRemove={onDeleteMetaData}
              builtInMetadata={builtInMetaData ?? []}
              isBuiltInEnabled={builtInEnabled}
              onIsBuiltInEnabledChange={onBuiltInEnabledChange}
            />
          )}
          {embeddingAvailable && canAddDocument && (
            <Button variant="primary" onClick={onAddDocument} className="shrink-0">
              <span className="mr-2 i-heroicons-plus-solid size-4 stroke-current" />
              {addButtonText}
            </Button>
          )}
        </div>
      </div>
    </>
  )
}

export default DocumentsHeader