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path: root/util/processOrg.tsx
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import unified from 'unified'
//import createStream from 'unified-stream'
import uniorgParse from 'uniorg-parse'
import uniorg2rehype from 'uniorg-rehype'
import uniorgSlug from 'uniorg-slug'
import extractKeywords from 'uniorg-extract-keywords'
import attachments from 'uniorg-attach'
// rehypeHighlight does not have any types
// add error thing here
// import highlight from 'rehype-highlight'
import katex from 'rehype-katex'
import 'katex/dist/katex.css'
import rehype2react from 'rehype-react'

import remarkParse from 'remark-parse'
import remarkGFM from 'remark-gfm'
// remark wikilinks does not have any type declarations
//@ts-expect-error
import remarkWikiLinks from 'remark-wiki-link'
import remarkMath from 'remark-math'
import remarkFrontMatter from 'remark-frontmatter'
import remarkExtractFrontMatter from 'remark-extract-frontmatter'
// remark sectionize does not have any type declarations
//@ts-expect-error
import remarkSectionize from 'remark-sectionize'
import remarkRehype from 'remark-rehype'

import { PreviewLink } from '../components/Sidebar/Link'
import { LinksByNodeId, NodeByCite, NodeById, normalizeLinkEnds } from '../pages'
import React, { createContext, ReactNode, useMemo } from 'react'
import { OrgImage } from '../components/Sidebar/OrgImage'
import { Section } from '../components/Sidebar/Section'
import { NoteContext } from './NoteContext'
import { OrgRoamLink, OrgRoamNode } from '../api'

export interface ProcessedOrgProps {
  nodeById: NodeById
  previewNode: OrgRoamNode
  setPreviewNode: any
  previewText: any
  nodeByCite: NodeByCite
  setSidebarHighlightedNode: any
  openContextMenu: any
  outline: boolean
  collapse: boolean
  linksByNodeId: LinksByNodeId
}

export const ProcessedOrg = (props: ProcessedOrgProps) => {
  const {
    nodeById,
    setSidebarHighlightedNode,
    setPreviewNode,
    previewText,
    nodeByCite,
    previewNode,
    openContextMenu,
    outline,
    collapse,
    linksByNodeId,
  } = props
  console.log(linksByNodeId)
  console.log(previewNode)
  if (!previewNode || !linksByNodeId) {
    return null
  }

  const orgProcessor = unified()
    .use(uniorgParse)
    .use(extractKeywords)
    .use(attachments)
    .use(uniorgSlug)
    .use(uniorg2rehype, { useSections: true })

  const nodesInNote =
    linksByNodeId[previewNode?.id!]?.reduce((acc: NodeById, link: OrgRoamLink) => {
      const links = normalizeLinkEnds(link)
      const relevantLink = links.filter((l) => l !== previewNode.id).join('')
      return {
        ...acc,
        [relevantLink]: nodeById[relevantLink],
      }
    }, {}) || {}

  const linkEntries = Object.entries(nodesInNote)
  const wikiLinkResolver = (wikiLink: string): string[] => {
    const entry = linkEntries.find((idNodeArray) => {
      console.log(idNodeArray)
      console.log(wikiLink)
      return idNodeArray?.[1]?.title === wikiLink
    })
    const id = entry?.[0] ?? ''
    return [id]
  }

  const wikiLinkProcessor = (wikiLink: string): string => {
    console.log(wikiLink)
    return `id:${wikiLink}`
  }

  const mdProcessor = unified()
    .use(remarkParse)
    .use(remarkFrontMatter, ['yaml'])
    .use(remarkExtractFrontMatter)
    .use(remarkWikiLinks, {
      permaLinks: Object.keys(nodesInNote),
      pageResolver: wikiLinkResolver,
      hrefTemplate: wikiLinkProcessor,
    })
    .use(remarkSectionize)
    .use(remarkMath)
    .use(remarkGFM)
    .use(remarkRehype)
  //.data('settings', { fragment: true })
  // .use(highlight)

  const isMarkdown = previewNode?.file?.slice(-3) === '.md'
  const baseProcessor = isMarkdown ? mdProcessor : orgProcessor

  const processor = useMemo(
    () =>
      baseProcessor.use(katex).use(rehype2react, {
        createElement: React.createElement,
        // eslint-disable-next-line react/display-name
        components: {
          a: ({ children, href }) => {
            return (
              <PreviewLink
                nodeByCite={nodeByCite}
                setSidebarHighlightedNode={setSidebarHighlightedNode}
                href={`${href as string}`}
                nodeById={nodeById}
                linksByNodeId={linksByNodeId}
                setPreviewNode={setPreviewNode}
                openContextMenu={openContextMenu}
                outline={outline}
                previewNode={previewNode}
                isWiki={isMarkdown}
              >
                {children}
              </PreviewLink>
            )
          },
          img: ({ src }) => {
            return <OrgImage src={src as string} file={previewNode?.file} />
          },
          section: ({ children, className }) => (
            <Section {...{ outline, collapse }} className={className as string}>
              {children}
            </Section>
          ),
          p: ({ children }) => {
            return <p lang="en">{children as ReactNode}</p>
          },
        },
      }),
    [previewNode?.id],
  )

  const text = useMemo(() => processor.processSync(previewText).result, [previewText])
  return (
    <NoteContext.Provider value={{ collapse, outline }}>{text as ReactNode}</NoteContext.Provider>
  )
}
function useCallBack(arg0: () => unified.Processor<unified.Settings>) {
  throw new Error('Function not implemented.')
}