Remove verbose logging and simplify YAML front matter handling

- Eliminate logger imports and debug statements throughout YAML front matter extension
- Streamline markdown tokenizer to match YAML front matter with optional leading whitespace
- Simplify parseMarkdown and renderMarkdown logic using helper methods
- Remove custom YAML front matter plugin from markdown converter as it's now handled by TipTap extension

src/renderer/src/components/RichEditor/extensions/yaml-front-matter.ts

@@ -1,11 +1,8 @@
-import { loggerService } from '@logger'
 import { mergeAttributes, Node } from '@tiptap/core'
 import { ReactNodeViewRenderer } from '@tiptap/react'
 
 import YamlFrontMatterNodeView from '../components/YamlFrontMatterNodeView'
 
-const logger = loggerService.withContext('YamlFrontMatterExtension')
-
 declare module '@tiptap/core' {
   interface Commands<ReturnType> {
     yamlFrontMatter: {
@@ -24,30 +21,17 @@ export const YamlFrontMatter = Node.create({
   markdownTokenizer: {
     name: 'yamlFrontMatter',
     level: 'block',
-    // Optimization: check if content starts with ---
-    start(src: string) {
-      logger.info('🔍 Tokenizer start() called', {
-        srcLength: src.length,
-        srcPrefix: src.substring(0, 60).replace(/\n/g, '\\n'),
-        startsWithDashes: src.startsWith('---\n')
-      })
 
-      const result = src.match(/^---\n/) ? 0 : -1
-      logger.info('✅ Tokenizer start() result:', { result })
+    start(src: string) {
+      const result = src.match(/^\s*---\n/) ? 0 : -1
       return result
     },
     // Parse YAML front matter
     tokenize(src: string) {
-      logger.info('🔍 Tokenizer tokenize() called', {
-        srcLength: src.length,
-        srcPrefix: src.substring(0, 120).replace(/\n/g, '\\n')
-      })
-
       // Match: ---\n...yaml content...\n---
       const match = /^---\n([\s\S]*?)\n---(?:\n|$)/.exec(src)
 
       if (!match) {
-        logger.warn('❌ Tokenizer tokenize() - NO MATCH FOUND')
         return undefined
       }
 
@@ -56,74 +40,37 @@ export const YamlFrontMatter = Node.create({
         raw: match[0],
         text: match[1] // YAML content without delimiters
       }
-
-      logger.info('✅ Tokenizer tokenize() - MATCH FOUND', {
-        rawLength: token.raw.length,
-        textLength: token.text.length,
-        textPreview: token.text.substring(0, 100).replace(/\n/g, '\\n')
-      })
-
       return token
     }
   },
 
   // Parse markdown token to Tiptap JSON
   parseMarkdown(token, helpers) {
-    logger.info('🔍 parseMarkdown() called', {
-      tokenType: token.type,
-      hasText: !!token.text,
-      textLength: token.text?.length || 0,
-      textPreview: token.text?.substring(0, 100).replace(/\n/g, '\\n'),
-      hasTokens: !!token.tokens,
-      tokensLength: token.tokens?.length || 0
-    })
-
-    // Since this is an atom node, we don't need child content
-    const result = {
-      type: 'yamlFrontMatter', // Use explicit node name instead of this.name
-      attrs: {
+    const attrs = {
       content: token.text || ''
     }
-    }
 
-    logger.info('✅ parseMarkdown() result', {
-      type: result.type,
-      contentLength: result.attrs.content.length
-    })
-
-    return result
+    return helpers.createNode('yamlFrontMatter', attrs)
   },
 
   // Serialize Tiptap node to markdown
   renderMarkdown(node) {
-    logger.info('🔍 renderMarkdown() called', {
-      nodeType: node.type,
-      hasContent: !!node.attrs?.content,
-      contentLength: node.attrs?.content?.length || 0,
-      contentPreview: node.attrs?.content?.substring(0, 100).replace(/\n/g, '\\n')
-    })
-
     const content = node.attrs?.content || ''
     if (!content.trim()) {
-      logger.info('⚠️ renderMarkdown() - empty content, returning empty string')
       return ''
     }
 
-    const trimmedContent = content.trim()
     let result = ''
 
-    // Ensure proper format with closing ---
-    if (trimmedContent.endsWith('---')) {
-      result = trimmedContent + '\n\n'
+    // Ensure proper format with opening and closing ---
+    // The content is stored without the --- delimiters, so we need to add them back
+    if (content.endsWith('---')) {
+      // Content already has closing ---, just add opening
+      result = '---\n' + content + '\n\n'
     } else {
-      result = trimmedContent + '\n---\n\n'
+      // Add both opening and closing ---
+      result = '---\n' + content + '\n---\n\n'
     }
-
-    logger.info('✅ renderMarkdown() result', {
-      resultLength: result.length,
-      resultPreview: result.substring(0, 120).replace(/\n/g, '\\n')
-    })
-
     return result
   },
 

src/renderer/src/utils/markdownConverter.ts

@@ -1,6 +1,5 @@
 import { loggerService } from '@logger'
 import { MARKDOWN_SOURCE_LINE_ATTR } from '@renderer/components/RichEditor/constants'
-import he from 'he'
 import MarkdownIt from 'markdown-it'
 import TurndownService from 'turndown'
 
@@ -58,141 +57,6 @@ defaultBlockRules.forEach((ruleName) => {
   }
 })
 
-// Override the code_block and code_inline renderers to properly escape HTML entities
-md.renderer.rules.code_block = function (tokens, idx) {
-  const token = tokens[idx]
-  const langName = token.info ? ` class="language-${token.info.trim()}"` : ''
-  const escapedContent = he.encode(token.content, { useNamedReferences: false })
-  let html = `<pre><code${langName}>${escapedContent}</code></pre>`
-  html = injectLineNumber(token, html)
-  return html
-}
-
-md.renderer.rules.code_inline = function (tokens, idx) {
-  const token = tokens[idx]
-  const escapedContent = he.encode(token.content, { useNamedReferences: false })
-  return `<code>${escapedContent}</code>`
-}
-
-md.renderer.rules.fence = function (tokens, idx) {
-  const token = tokens[idx]
-  const langName = token.info ? ` class="language-${token.info.trim()}"` : ''
-  const escapedContent = he.encode(token.content, { useNamedReferences: false })
-  let html = `<pre><code${langName}>${escapedContent}</code></pre>`
-  html = injectLineNumber(token, html)
-  return html
-}
-
-interface TokenLike {
-  content: string
-  block?: boolean
-  map?: [number, number]
-}
-
-interface BlockStateLike {
-  src: string
-  bMarks: number[]
-  eMarks: number[]
-  tShift: number[]
-  line: number
-  parentType: string
-  blkIndent: number
-  push: (type: string, tag: string, nesting: number) => TokenLike
-}
-
-interface InlineStateLike {
-  src: string
-  pos: number
-  posMax: number
-  push: (type: string, tag: string, nesting: number) => TokenLike & { content?: string }
-}
-
-function yamlFrontMatterPlugin(md: MarkdownIt) {
-  // Parser: recognize YAML front matter
-  md.block.ruler.before(
-    'table',
-    'yaml_front_matter',
-    (stateLike: unknown, startLine: number, endLine: number, silent: boolean): boolean => {
-      const state = stateLike as BlockStateLike
-
-      // Only check at the very beginning of the document
-      if (startLine !== 0) {
-        return false
-      }
-
-      const startPos = state.bMarks[startLine] + state.tShift[startLine]
-      const maxPos = state.eMarks[startLine]
-
-      // Must begin with --- at document start
-      if (startPos + 3 > maxPos) return false
-      if (
-        state.src.charCodeAt(startPos) !== 0x2d /* - */ ||
-        state.src.charCodeAt(startPos + 1) !== 0x2d /* - */ ||
-        state.src.charCodeAt(startPos + 2) !== 0x2d /* - */
-      ) {
-        return false
-      }
-
-      // If requested only to validate existence
-      if (silent) return true
-
-      // Search for closing ---
-      let nextLine = startLine + 1
-      let found = false
-
-      for (nextLine = startLine + 1; nextLine < endLine; nextLine++) {
-        const lineStart = state.bMarks[nextLine] + state.tShift[nextLine]
-        const lineEnd = state.eMarks[nextLine]
-        const line = state.src.slice(lineStart, lineEnd).trim()
-
-        if (line === '---') {
-          found = true
-          break
-        }
-      }
-
-      if (!found) {
-        return false
-      }
-
-      // Extract YAML content between the --- delimiters, preserving original indentation
-      const yamlLines: string[] = []
-      for (let lineIdx = startLine + 1; lineIdx < nextLine; lineIdx++) {
-        // Use the original line markers without shift to preserve indentation
-        const lineStart = state.bMarks[lineIdx]
-        const lineEnd = state.eMarks[lineIdx]
-        yamlLines.push(state.src.slice(lineStart, lineEnd))
-      }
-
-      // Also capture the closing --- line with its indentation
-      const closingLineStart = state.bMarks[nextLine]
-      const closingLineEnd = state.eMarks[nextLine]
-      const closingLine = state.src.slice(closingLineStart, closingLineEnd)
-
-      const yamlContent = yamlLines.join('\n') + '\n' + closingLine
-
-      const token = state.push('yaml_front_matter', 'div', 0)
-      token.block = true
-      token.map = [startLine, nextLine + 1]
-      token.content = yamlContent
-
-      state.line = nextLine + 1
-      return true
-    }
-  )
-
-  // Renderer: output YAML front matter as special HTML element
-  md.renderer.rules.yaml_front_matter = (tokens: Array<{ content?: string }>, idx: number): string => {
-    const token = tokens[idx]
-    const content = token?.content ?? ''
-    let html = `<div data-type="yaml-front-matter" data-content="${he.encode(content)}">${content}</div>`
-    html = injectLineNumber(token, html)
-    return html
-  }
-}
-
-md.use(yamlFrontMatterPlugin)
-
 // Initialize turndown service
 const turndownService = new TurndownService({
   headingStyle: 'atx', // Use # for headings
@@ -204,28 +68,6 @@ const turndownService = new TurndownService({
   strongDelimiter: '**' // Use ** for strong
 })
 
-// Custom rule to preserve YAML front matter
-turndownService.addRule('yamlFrontMatter', {
-  filter: (node: Element) => {
-    return node.nodeName === 'DIV' && node.getAttribute?.('data-type') === 'yaml-front-matter'
-  },
-  replacement: (_content: string, node: Node) => {
-    const element = node as Element
-    const yamlContent = element.getAttribute?.('data-content') || ''
-    const decodedContent = he.decode(yamlContent, {
-      isAttributeValue: false,
-      strict: false
-    })
-    // The decodedContent already includes the complete YAML with closing ---
-    // We just need to add the opening --- if it's not there
-    if (decodedContent.startsWith('---')) {
-      return decodedContent
-    } else {
-      return `---\n${decodedContent}`
-    }
-  }
-})
-
 /**
  * Gets plain text preview from Markdown content
  * @param markdown - Markdown string