import type { MetadataShape } from '@/app/components/workflow/nodes/knowledge-retrieval/types'
import type { MetadataInDoc } from '@/models/datasets'
import { Button } from '@langgenius/dify-ui/button'
import {
  Popover,
  PopoverContent,
  PopoverTrigger,
} from '@langgenius/dify-ui/popover'
import { RiAddLine } from '@remixicon/react'
import {
  useCallback,
  useMemo,
  useState,
} from 'react'
import { useTranslation } from 'react-i18next'
import Input from '@/app/components/base/input'
import MetadataIcon from './metadata-icon'

const AddCondition = ({
  metadataList,
  handleAddCondition,
}: Pick<MetadataShape, 'handleAddCondition' | 'metadataList'>) => {
  const { t } = useTranslation()
  const [open, setOpen] = useState(false)
  const [searchText, setSearchText] = useState('')

  const filteredMetadataList = useMemo(() => {
    return metadataList?.filter(metadata => metadata.name.includes(searchText))
  }, [metadataList, searchText])

  const handleAddConditionWrapped = useCallback((item: MetadataInDoc) => {
    handleAddCondition?.(item)
    setOpen(false)
  }, [handleAddCondition])

  return (
    <Popover open={open} onOpenChange={setOpen}>
      <PopoverTrigger
        render={(
          <Button
            size="small"
            variant="secondary"
          >
            <RiAddLine className="h-3.5 w-3.5" />
            {t('nodes.knowledgeRetrieval.metadata.panel.add', { ns: 'workflow' })}
          </Button>
        )}
      />
      <PopoverContent
        placement="bottom-start"
        sideOffset={12}
        popupClassName="border-none bg-transparent p-0 shadow-none backdrop-blur-none"
      >
        <div className="w-[320px] rounded-xl border-[0.5px] border-components-panel-border bg-components-panel-bg-blur shadow-lg">
          <div className="p-2 pb-1">
            <Input
              showLeftIcon
              placeholder={t('nodes.knowledgeRetrieval.metadata.panel.search', { ns: 'workflow' })}
              value={searchText}
              onChange={e => setSearchText(e.target.value)}
            />
          </div>
          <div className="p-1">
            {filteredMetadataList?.map(metadata => (
              <div
                key={metadata.name}
                className="flex h-6 cursor-pointer items-center rounded-md px-3 system-sm-medium text-text-secondary hover:bg-state-base-hover"
                onClick={() => handleAddConditionWrapped(metadata)}
              >
                <div className="mr-1 p-px">
                  <MetadataIcon type={metadata.type} />
                </div>
                <div
                  className="grow truncate"
                  title={metadata.name}
                >
                  {metadata.name}
                </div>
                <div className="shrink-0 system-xs-regular text-text-tertiary">{metadata.type}</div>
              </div>
            ))}
          </div>
        </div>
      </PopoverContent>
    </Popover>
  )
}

export default AddCondition
