/*
 * @Author: ZhaoYing 
 * @Date: 2026-02-03 17:57:11 
 * @Last Modified by: ZhaoYing
 * @Last Modified time: 2026-03-12 18:00:11
 */
/**
 * RAG User Memory Detail View
 * Displays user memory details using RAG storage
 * Shows profile, tags, summary, memory count, and conversation history
 */

import { type FC, useEffect, useState } from 'react'
import { useTranslation } from 'react-i18next'
import clsx from 'clsx'
import { Row, Col, Skeleton, Spin, Flex, Tooltip } from 'antd'
import { LoadingOutlined } from '@ant-design/icons';
import { useParams } from 'react-router-dom'

import aboutUs from '@/assets/images/userMemory/aboutUs.svg'
import down from '@/assets/images/userMemory/down.svg'
import interestDistribution from '@/assets/images/userMemory/interestDistribution.svg'
import RbCard from '@/components/RbCard/Card'
import type { Data } from './types'
import {
  getChunkSummaryTag,
  getUserProfile,
  getTotalRagMemoryCountByUser,
  getChunkInsight,
  generateRagProfile
} from '@/api/memory'
import Empty from '@/components/Empty'
import ConversationMemory from './components/ConversationMemory'

/** Tag color palette */
const tagColors = ['21, 94, 239', '156, 111, 255', '255, 93, 52', '54, 159, 33']

/**
 * Title component props
 */
interface TitleProps {
  type: string;
  title: string
  icon: string
  t: (key: string) => string;
  expanded: boolean;
  onClick: (type: string) => void;
}
/** Collapsible section title */
const Title: FC<TitleProps> = ({ type, title, icon, t, expanded, onClick }) => (
  <div className="rb:flex rb:items-center rb:justify-between rb:py-4.25 rb:border-b rb:border-[#DFE4ED] rb:text-[16px] rb:font-semibold rb:leading-5.5">
    <span className="rb:flex rb:items-center">
      <img src={icon} className="rb:w-5 rb:h-5 rb:mr-2" />
      {title}
    </span>

    <span className="rb:flex rb:items-center rb:cursor-pointer rb:text-[#5B6167] rb:text-[14px] rb:font-regular rb:leading-5" onClick={() => onClick(type)}>
      {t(`userMemory.${expanded ? 'foldUp' : 'expanded'}`)}
      <img src={down} className={clsx("rb:w-4 rb:h-4 rb:ml-1", {
        'rb:rotate-180': !expanded,
      })} />
    </span>
  </div>
)

const Rag: FC = () => {
  const { t } = useTranslation()
  const { id } = useParams()
  const [data, setData] = useState<Data | null>(null)
  const [expanded, setExpanded] = useState<string[]>(['aboutUs', 'memoryInsight',])
  const [summary, setSummary] = useState<string | null>('')
  const [loading, setLoading] = useState<Record<string, boolean>>({
    detail: true,
    summary: true,
    insight: true,
  })
  const [memory, setMemory] = useState<number | null>(null)
  const [insight, setInsight] = useState<string | null>('')
  const [tags, setTags] = useState<{ tag: string; frequency: number }[]>([])
  const [personas, setPersonas] = useState<string[]>([])

  useEffect(() => {
    if (!id) return
    getMemory()
    getSummary()
    getDetail()
    getInsightReport()
  }, [id])

  /** Toggle section expansion */
  const handleTitleClick = (key: string) => {
    setExpanded(expanded.includes(key) ? expanded.filter((item) => item !== key) : [...expanded, key])
  }
  /** Fetch user memory detail */
  const getDetail = () => {
    if (!id) return
    setLoading(prev => ({ ...prev, detail: true }))
    getUserProfile(id).then((res) => {
      setData((res as Data))
    })
    .finally(() => {
    setLoading(prev => ({ ...prev, detail: false }))
    })
  }
  /** Fetch memory count */
  const getMemory = () => {
    if (!id) return
    getTotalRagMemoryCountByUser(id).then((res) => {
      setMemory(res as number || 0)
    })
  }
  /** Fetch user summary */
  const getSummary = () => {
    if (!id) return
    setLoading(prev => ({ ...prev, summary: true }))
    getChunkSummaryTag(id).then((res) => {
      const response = res as { summary?: string; tags?: { tag: string; frequency: number }[]; personas?: string[] }
      setSummary(response.summary || null)
      setTags(response.tags || [])
      setPersonas(response.personas || [])
    })
    .finally(() => {
      setLoading(prev => ({ ...prev, summary: false }))
    })
  }
  /** Fetch memory insight */
  const getInsightReport = () => {
    if (!id) return
    setLoading(prev => ({ ...prev, insight: true }))
    getChunkInsight(id).then((res) => {
      setInsight((res as { insight?: string }).insight || null)
    })
    .finally(() => {
      setLoading(prev => ({ ...prev, insight: false }))
    })
  }
  const name = loading.detail ? '' : data?.name && data?.name !== '' ? data.name : id

  const [refreshLoading, setRefreshLoading] = useState(false)
  const handleRefresh = () => {
    if (refreshLoading || !id) return
    setRefreshLoading(true)
    generateRagProfile(id as string)
      .then(() => {
        getSummary()
        getInsightReport()
      })
      .finally(() => {
        setRefreshLoading(false)
      })
  }
  return (
    <Row gutter={[16, 16]} className="rb:h-full!">
      <Col span={8}>
        <RbCard
          className="rb:h-[calc(100vh-104px)]!"
          bodyClassName="rb:overflow-y-auto! rb:h-full!"
        >
          <div className="rb:flex rb:items-center">
            <div className="rb:flex-[0_0_auto] rb:w-20 rb:h-20 rb:text-center rb:font-semibold rb:text-[28px] rb:leading-20 rb:rounded-lg rb:text-[#FBFDFF] rb:bg-[#155EEF]">{name?.[0]}</div>
            <Flex>
              <div className="rb:text-[24px] rb:font-semibold rb:leading-8 rb:ml-4 rb:flex-1">
                {name}<br />
                <div className="rb:text-[12px] rb:text-[#5B6167] rb:font-regular rb:leading-4 rb:mt-2">{personas?.join(' | ')}</div>
              </div>
              <Tooltip title={t('common.refresh')}>
                {refreshLoading
                  ? <Spin indicator={<LoadingOutlined spin />} />
                  : (
                    <div
                      className="rb:size-5 rb:cursor-pointer rb:bg-cover rb:bg-[url('@/assets/images/refresh.svg')] rb:hover:bg-[url('@/assets/images/refresh_hover.svg')]"
                      onClick={handleRefresh}
                    ></div>
                  )
                }
              </Tooltip>
            </Flex>
          </div>

          <div className="rb:flex rb:gap-2 rb:mb-2 rb:flex-wrap rb:mt-6.25">
            {tags?.map((tag, tagIndex) => (
              <span key={tag.tag} className="rb:rounded-[11px] rb:p-[0_8px] rb:leading-5.5 rb:border"
                style={{
                  backgroundColor: `rgba(${tagColors[tagIndex % tagColors.length]}, 0.08)`,
                  borderColor: `rgba(${tagColors[tagIndex % tagColors.length]}, 0.3)`,
                  color: `rgba(${tagColors[tagIndex % tagColors.length]}, 1)`,
                }}
              >
                {tag.tag}({tag.frequency})
              </span>
            ))}
          </div>

          {/* Total Memory */}
          <div className="rb:font-regular rb:text-[12px] rb:text-[#5B6167] rb:leading-4 rb:mb-6.25">
            {t('userMemory.totalNumOfMemories')}
            <div className="rb:font-extrabold rb:text-[24px] rb:text-[#212332] rb:leading-7.5 rb:mt-2">{memory || 0}</div>
          </div>

          {/* About Me */}
          <>
            <Title
              type="aboutUs"
              title={t('userMemory.aboutMe')}
              icon={aboutUs}
              t={t}
              expanded={expanded.includes('aboutUs')}
              onClick={handleTitleClick}
            />
            {expanded.includes('aboutUs') && (
              <>
                {loading.summary
                  ? <Skeleton className="rb:mt-4" />
                  : summary 
                  ? <div className="rb:font-regular rb:leading-5.5 rb:pt-4">
                    {summary || '-'}
                  </div>
                  : <Empty size={88} className="rb:mt-12 rb:mb-20.25" />
                }
              </>
            )}
          </>
          {/* Memory Insights */}
          <>
            <Title
              type="memoryInsight"
              title={t('userMemory.memoryInsight')}
              icon={interestDistribution}
              t={t}
              expanded={expanded.includes('memoryInsight')}
              onClick={handleTitleClick}
            />
            {expanded.includes('memoryInsight') && (
              <>
                {loading.insight
                  ? <Skeleton className="rb:mt-4" />
                  : insight 
                  ? <div className="rb:font-regular rb:leading-5.5 rb:pt-4">
                    {insight || '-'}
                  </div>
                  : <Empty size={88} className="rb:mt-12 rb:mb-20.25" />
                }
              </>
            )}
          </>
        </RbCard>
      </Col>
      <Col span={16}>
        <ConversationMemory />
      </Col>
    </Row>
  )
}
export default Rag