'use client'
import type { FC } from 'react'
import React, { useMemo, useState } from 'react'
import { useTranslation } from 'react-i18next'
import useSWR from 'swr'
import { omit } from 'lodash-es'
import cn from 'classnames'
import dayjs from 'dayjs'
import { useContext } from 'use-context-selector'
import SegmentCard from '../documents/detail/completed/SegmentCard'
import docStyle from '../documents/detail/completed/style.module.css'
import Textarea from './textarea'
import s from './style.module.css'
import HitDetail from './hit-detail'
import ModifyRetrievalModal from './modify-retrieval-modal'
import type { HitTestingResponse, HitTesting as HitTestingType } from '@/models/datasets'
import Loading from '@/app/components/base/loading'
import Modal from '@/app/components/base/modal'
import Pagination from '@/app/components/base/pagination'
import { fetchTestingRecords } from '@/service/datasets'
import DatasetDetailContext from '@/context/dataset-detail'
import type { RetrievalConfig } from '@/types/app'

const limit = 10

type Props = {
  datasetId: string
}

const RecordsEmpty: FC = () => {
  const { t } = useTranslation()
  return <div className='bg-gray-50 rounded-2xl p-5'>
    <div className={s.clockWrapper}>
      <div className={cn(s.clockIcon, 'w-5 h-5')}></div>
    </div>
    <div className='my-2 text-gray-500 text-sm'>{t('datasetHitTesting.noRecentTip')}</div>
  </div>
}

const HitTesting: FC<Props> = ({ datasetId }: Props) => {
  const { t } = useTranslation()
  const [hitResult, setHitResult] = useState<HitTestingResponse | undefined>() // 初始化记录为空数组
  const [submitLoading, setSubmitLoading] = useState(false)
  const [currParagraph, setCurrParagraph] = useState<{ paraInfo?: HitTestingType; showModal: boolean }>({ showModal: false })
  const [text, setText] = useState('')

  const [currPage, setCurrPage] = React.useState<number>(0)
  const { data: recordsRes, error, mutate: recordsMutate } = useSWR({
    action: 'fetchTestingRecords',
    datasetId,
    params: { limit, page: currPage + 1 },
  }, apiParams => fetchTestingRecords(omit(apiParams, 'action')))

  const total = recordsRes?.total || 0

  const points = useMemo(() => (hitResult?.records.map(v => [v.tsne_position.x, v.tsne_position.y]) || []), [hitResult?.records])

  const onClickCard = (detail: HitTestingType) => {
    setCurrParagraph({ paraInfo: detail, showModal: true })
  }

  const { dataset: currentDataset } = useContext(DatasetDetailContext)

  const [retrievalConfig, setRetrievalConfig] = useState(currentDataset?.retrieval_model_dict as RetrievalConfig)
  const [isShowModifyRetrievalModal, setIsShowModifyRetrievalModal] = useState(false)

  return (
    <div className={s.container}>
      <div className={s.leftDiv}>
        <div className={s.titleWrapper}>
          <h1 className={s.title}>{t('datasetHitTesting.title')}</h1>
          <p className={s.desc}>{t('datasetHitTesting.desc')}</p>
        </div>
        <Textarea
          datasetId={datasetId}
          setHitResult={setHitResult}
          onUpdateList={recordsMutate}
          loading={submitLoading}
          setLoading={setSubmitLoading}
          setText={setText}
          text={text}
          onClickRetrievalMethod={() => setIsShowModifyRetrievalModal(true)}
          retrievalConfig={retrievalConfig}
          isEconomy={currentDataset?.indexing_technique === 'economy'}
        />
        <div className={cn(s.title, 'mt-8 mb-2')}>{t('datasetHitTesting.recents')}</div>
        {(!recordsRes && !error)
          ? (
            <div className='flex-1'><Loading type='app' /></div>
          )
          : recordsRes?.data?.length
            ? (
              <>
                <div className='grow overflow-y-auto'>
                  <table className={`w-full border-collapse border-0 mt-3 ${s.table}`}>
                    <thead className="sticky top-0 h-8 bg-white leading-8 border-b border-gray-200 text-gray-500 font-bold">
                      <tr>
                        <td className='w-28'>{t('datasetHitTesting.table.header.source')}</td>
                        <td>{t('datasetHitTesting.table.header.text')}</td>
                        <td className='w-48'>{t('datasetHitTesting.table.header.time')}</td>
                      </tr>
                    </thead>
                    <tbody className="text-gray-500">
                      {recordsRes?.data?.map((record) => {
                        return <tr
                          key={record.id}
                          className='group border-b border-gray-200 h-8 hover:bg-gray-50 cursor-pointer'
                          onClick={() => setText(record.content)}
                        >
                          <td className='w-24'>
                            <div className='flex items-center'>
                              <div className={cn(s[`${record.source}_icon`], s.commonIcon, 'mr-1')} />
                              <span className='capitalize'>{record.source.replace('_', ' ')}</span>
                            </div>
                          </td>
                          <td className='max-w-xs group-hover:text-primary-600'>{record.content}</td>
                          <td className='w-36'>
                            {dayjs.unix(record.created_at).format(t('datasetHitTesting.dateTimeFormat') as string)}
                          </td>
                        </tr>
                      })}
                    </tbody>
                  </table>
                </div>
                {(total && total > limit)
                  ? <Pagination current={currPage} onChange={setCurrPage} total={total} limit={limit} />
                  : null}
              </>
            )
            : (
              <RecordsEmpty />
            )}
      </div>
      <div className={s.rightDiv}>
        {submitLoading
          ? <div className={s.cardWrapper}>
            <SegmentCard
              loading={true}
              scene='hitTesting'
              className='h-[216px]'
            />
            <SegmentCard
              loading={true}
              scene='hitTesting'
              className='h-[216px]'
            />
          </div>
          : !hitResult?.records.length
            ? (
              <div className='h-full flex flex-col justify-center items-center'>
                <div className={cn(docStyle.commonIcon, docStyle.targetIcon, '!bg-gray-200 !h-14 !w-14')} />
                <div className='text-gray-300 text-[13px] mt-3'>
                  {t('datasetHitTesting.hit.emptyTip')}
                </div>
              </div>
            )
            : (
              <>
                <div className='text-gray-600 font-semibold mb-4'>{t('datasetHitTesting.hit.title')}</div>
                <div className='overflow-auto flex-1'>
                  <div className={s.cardWrapper}>
                    {hitResult?.records.map((record, idx) => {
                      return <SegmentCard
                        key={idx}
                        loading={false}
                        detail={record.segment as any}
                        score={record.score}
                        scene='hitTesting'
                        className='h-[216px] mb-4'
                        onClick={() => onClickCard(record as any)}
                      />
                    })}
                  </div>
                </div>
              </>
            )
        }
      </div>
      <Modal
        className='!max-w-[960px] !p-0'
        closable
        onClose={() => setCurrParagraph({ showModal: false })}
        isShow={currParagraph.showModal}
      >
        {currParagraph.showModal && <HitDetail
          segInfo={currParagraph.paraInfo?.segment}
          vectorInfo={{
            curr: [[currParagraph.paraInfo?.tsne_position?.x || 0, currParagraph.paraInfo?.tsne_position.y || 0]],
            points,
          }}
        />}
      </Modal>
      {isShowModifyRetrievalModal && (
        <ModifyRetrievalModal
          indexMethod={currentDataset?.indexing_technique || ''}
          value={retrievalConfig}
          isShow={isShowModifyRetrievalModal}
          onHide={() => setIsShowModifyRetrievalModal(false)}
          onSave={(value) => {
            setRetrievalConfig(value)
            setIsShowModifyRetrievalModal(false)
          }}
        />
      )}
    </div>
  )
}

export default HitTesting
