import type { CreateExternalAPIReq } from '../declarations'
import type { ExternalAPIItem } from '@/models/datasets'
import {
  AlertDialog,
  AlertDialogActions,
  AlertDialogCancelButton,
  AlertDialogConfirmButton,
  AlertDialogContent,
  AlertDialogDescription,
  AlertDialogTitle,
} from '@langgenius/dify-ui/alert-dialog'
import {
  RiDeleteBinLine,
  RiEditLine,
} from '@remixicon/react'
import * as React from 'react'
import { useState } from 'react'
import { useTranslation } from 'react-i18next'
import ActionButton from '@/app/components/base/action-button'
import { ApiConnectionMod } from '@/app/components/base/icons/src/vender/solid/development'
import { useExternalKnowledgeApi } from '@/context/external-knowledge-api-context'
import { useModalContext } from '@/context/modal-context'
import { checkUsageExternalAPI, deleteExternalAPI, fetchExternalAPI, updateExternalAPI } from '@/service/datasets'

type ExternalKnowledgeAPICardProps = {
  api: ExternalAPIItem
  canManageExternalKnowledgeApi: boolean
}

const ExternalKnowledgeAPICard: React.FC<ExternalKnowledgeAPICardProps> = ({ api, canManageExternalKnowledgeApi }) => {
  const { setShowExternalKnowledgeAPIModal } = useModalContext()
  const [showConfirm, setShowConfirm] = useState(false)
  const [isHovered, setIsHovered] = useState(false)
  const [usageCount, setUsageCount] = useState(0)
  const { mutateExternalKnowledgeApis } = useExternalKnowledgeApi()

  const { t } = useTranslation()

  const handleEditClick = async () => {
    if (!canManageExternalKnowledgeApi)
      return

    try {
      const response = await fetchExternalAPI({ apiTemplateId: api.id })
      const formValue: CreateExternalAPIReq = {
        name: response.name,
        settings: {
          endpoint: response.settings.endpoint,
          api_key: response.settings.api_key,
        },
      }

      setShowExternalKnowledgeAPIModal({
        payload: formValue,
        onSaveCallback: () => {
          mutateExternalKnowledgeApis()
        },
        onCancelCallback: () => {
          mutateExternalKnowledgeApis()
        },
        isEditMode: true,
        datasetBindings: response.dataset_bindings,
        onEditCallback: async (updatedData: CreateExternalAPIReq) => {
          try {
            await updateExternalAPI({
              apiTemplateId: api.id,
              body: {
                ...response,
                name: updatedData.name,
                settings: {
                  ...response.settings,
                  endpoint: updatedData.settings.endpoint,
                  api_key: updatedData.settings.api_key,
                },
              },
            })
            mutateExternalKnowledgeApis()
          }
          catch (error) {
            console.error('Error updating external knowledge API:', error)
          }
        },
      })
    }
    catch (error) {
      console.error('Error fetching external knowledge API data:', error)
    }
  }

  const handleDeleteClick = async () => {
    if (!canManageExternalKnowledgeApi)
      return

    try {
      const usage = await checkUsageExternalAPI({ apiTemplateId: api.id })
      if (usage.is_using)
        setUsageCount(usage.count)

      setShowConfirm(true)
    }
    catch (error) {
      console.error('Error checking external API usage:', error)
    }
  }

  const handleConfirmDelete = async () => {
    if (!canManageExternalKnowledgeApi)
      return

    try {
      const response = await deleteExternalAPI({ apiTemplateId: api.id })
      if (response && response.result === 'success') {
        setShowConfirm(false)
        mutateExternalKnowledgeApis()
      }
      else {
        console.error('Failed to delete external API')
      }
    }
    catch (error) {
      console.error('Error deleting external knowledge API:', error)
    }
  }

  return (
    <>
      <div className={`shadows-shadow-xs flex items-start self-stretch rounded-lg border-[0.5px] border-components-panel-border-subtle
        bg-components-panel-on-panel-item-bg p-2
        pl-3 ${isHovered ? 'border-state-destructive-border bg-state-destructive-hover' : ''}`}
      >
        <div className="flex grow flex-col items-start justify-center gap-1.5 py-1">
          <div className="flex items-center gap-1 self-stretch text-text-secondary">
            <ApiConnectionMod className="size-4" />
            <div className="system-sm-medium">{api.name}</div>
          </div>
          <div className="self-stretch system-xs-regular text-text-tertiary">{api.settings.endpoint}</div>
        </div>
        {canManageExternalKnowledgeApi && (
          <div className="flex items-start gap-1">
            <ActionButton onClick={handleEditClick}>
              <RiEditLine className="size-4 text-text-tertiary hover:text-text-secondary" />
            </ActionButton>
            <ActionButton
              className="hover:bg-state-destructive-hover"
              onClick={handleDeleteClick}
              onMouseEnter={() => setIsHovered(true)}
              onMouseLeave={() => setIsHovered(false)}
            >
              <RiDeleteBinLine className="size-4 text-text-tertiary hover:text-text-destructive" />
            </ActionButton>
          </div>
        )}
      </div>
      <AlertDialog open={showConfirm} onOpenChange={open => !open && setShowConfirm(false)}>
        <AlertDialogContent>
          <div className="flex flex-col gap-2 px-6 pt-6 pb-4">
            <AlertDialogTitle className="w-full truncate title-2xl-semi-bold text-text-primary">
              {`${t('deleteExternalAPIConfirmWarningContent.title.front', { ns: 'dataset' })} ${api.name}${t('deleteExternalAPIConfirmWarningContent.title.end', { ns: 'dataset' })}`}
            </AlertDialogTitle>
            <AlertDialogDescription className="w-full system-md-regular wrap-break-word whitespace-pre-wrap text-text-tertiary">
              {usageCount > 0
                ? `${t('deleteExternalAPIConfirmWarningContent.content.front', { ns: 'dataset' })} ${usageCount} ${t('deleteExternalAPIConfirmWarningContent.content.end', { ns: 'dataset' })}`
                : t('deleteExternalAPIConfirmWarningContent.noConnectionContent', { ns: 'dataset' })}
            </AlertDialogDescription>
          </div>
          <AlertDialogActions>
            <AlertDialogCancelButton>{t('operation.cancel', { ns: 'common' })}</AlertDialogCancelButton>
            <AlertDialogConfirmButton onClick={handleConfirmDelete}>
              {t('operation.confirm', { ns: 'common' })}
            </AlertDialogConfirmButton>
          </AlertDialogActions>
        </AlertDialogContent>
      </AlertDialog>
    </>
  )
}

export default ExternalKnowledgeAPICard
