chore(desktop): remove dead code

packages/desktop/src/components/code.tsx

@@ -1,846 +0,0 @@
-import { bundledLanguages, type BundledLanguage, type ShikiTransformer } from "shiki"
-import { splitProps, type ComponentProps, createEffect, onMount, onCleanup, createMemo, createResource } from "solid-js"
-import { useLocal, type TextSelection } from "@/context/local"
-import { getFileExtension, getNodeOffsetInLine, getSelectionInContainer } from "@/utils"
-import { useShiki } from "@opencode-ai/ui"
-
-type DefinedSelection = Exclude<TextSelection, undefined>
-
-interface Props extends ComponentProps<"div"> {
-  code: string
-  path: string
-}
-
-export function Code(props: Props) {
-  const ctx = useLocal()
-  const highlighter = useShiki()
-  const [local, others] = splitProps(props, ["class", "classList", "code", "path"])
-  const lang = createMemo(() => {
-    const ext = getFileExtension(local.path)
-    if (ext in bundledLanguages) return ext
-    return "text"
-  })
-
-  let container: HTMLDivElement | undefined
-  let isProgrammaticSelection = false
-
-  const ranges = createMemo<DefinedSelection[]>(() => {
-    const items = ctx.context.all() as Array<{ type: "file"; path: string; selection?: DefinedSelection }>
-    const result: DefinedSelection[] = []
-    for (const item of items) {
-      if (item.path !== local.path) continue
-      const selection = item.selection
-      if (!selection) continue
-      result.push(selection)
-    }
-    return result
-  })
-
-  const createLineNumberTransformer = (selections: DefinedSelection[]): ShikiTransformer => {
-    const highlighted = new Set<number>()
-    for (const selection of selections) {
-      const startLine = selection.startLine
-      const endLine = selection.endLine
-      const start = Math.max(1, Math.min(startLine, endLine))
-      const end = Math.max(start, Math.max(startLine, endLine))
-      const count = end - start + 1
-      if (count <= 0) continue
-      const values = Array.from({ length: count }, (_, index) => start + index)
-      for (const value of values) highlighted.add(value)
-    }
-    return {
-      name: "line-number-highlight",
-      line(node, index) {
-        if (!highlighted.has(index)) return
-        this.addClassToHast(node, "line-number-highlight")
-        const children = node.children
-        if (!Array.isArray(children)) return
-        for (const child of children) {
-          if (!child || typeof child !== "object") continue
-          const element = child as { type?: string; properties?: { className?: string[] } }
-          if (element.type !== "element") continue
-          const className = element.properties?.className
-          if (!Array.isArray(className)) continue
-          const matches = className.includes("diff-oldln") || className.includes("diff-newln")
-          if (!matches) continue
-          if (className.includes("line-number-highlight")) continue
-          className.push("line-number-highlight")
-        }
-      },
-    }
-  }
-
-  const [html] = createResource(
-    () => ranges(),
-    async (activeRanges) => {
-      if (!highlighter.getLoadedLanguages().includes(lang())) {
-        await highlighter.loadLanguage(lang() as BundledLanguage)
-      }
-      return highlighter.codeToHtml(local.code || "", {
-        lang: lang() && lang() in bundledLanguages ? lang() : "text",
-        theme: "opencode",
-        transformers: [transformerUnifiedDiff(), transformerDiffGroups(), createLineNumberTransformer(activeRanges)],
-      }) as string
-    },
-  )
-
-  onMount(() => {
-    if (!container) return
-
-    let ticking = false
-    const onScroll = () => {
-      if (!container) return
-      // if (ctx.file.active()?.path !== local.path) return
-      if (ticking) return
-      ticking = true
-      requestAnimationFrame(() => {
-        ticking = false
-        ctx.file.scroll(local.path, container!.scrollTop)
-      })
-    }
-
-    const onSelectionChange = async () => {
-      if (!container) return
-      if (isProgrammaticSelection) return
-      // if (ctx.file.active()?.path !== local.path) return
-      const d = getSelectionInContainer(container)
-      if (!d) return
-      const p = (await ctx.file.node(local.path))?.selection
-      if (p && p.startLine === d.sl && p.endLine === d.el && p.startChar === d.sch && p.endChar === d.ech) return
-      ctx.file.select(local.path, { startLine: d.sl, startChar: d.sch, endLine: d.el, endChar: d.ech })
-    }
-
-    const MOD = typeof navigator === "object" && /(Mac|iPod|iPhone|iPad)/.test(navigator.platform) ? "Meta" : "Control"
-    const onKeyDown = (e: KeyboardEvent) => {
-      // if (ctx.file.active()?.path !== local.path) return
-      const ae = document.activeElement as HTMLElement | undefined
-      const tag = (ae?.tagName || "").toLowerCase()
-      const inputFocused = !!ae && (tag === "input" || tag === "textarea" || ae.isContentEditable)
-      if (inputFocused) return
-      if (e.getModifierState(MOD) && e.key.toLowerCase() === "a") {
-        e.preventDefault()
-        if (!container) return
-        const element = container.querySelector("code") as HTMLElement | undefined
-        if (!element) return
-        const lines = Array.from(element.querySelectorAll(".line"))
-        if (!lines.length) return
-        const r = document.createRange()
-        const last = lines[lines.length - 1]
-        r.selectNodeContents(last)
-        const lastLen = r.toString().length
-        ctx.file.select(local.path, { startLine: 1, startChar: 0, endLine: lines.length, endChar: lastLen })
-      }
-    }
-
-    container.addEventListener("scroll", onScroll)
-    document.addEventListener("selectionchange", onSelectionChange)
-    document.addEventListener("keydown", onKeyDown)
-
-    onCleanup(() => {
-      container?.removeEventListener("scroll", onScroll)
-      document.removeEventListener("selectionchange", onSelectionChange)
-      document.removeEventListener("keydown", onKeyDown)
-    })
-  })
-
-  // Restore scroll position from store when content is ready
-  createEffect(async () => {
-    const content = html()
-    if (!container || !content) return
-    const top = (await ctx.file.node(local.path))?.scrollTop
-    if (top !== undefined && container.scrollTop !== top) container.scrollTop = top
-  })
-
-  // Sync selection from store -> DOM
-  createEffect(async () => {
-    const content = html()
-    if (!container || !content) return
-    // if (ctx.file.active()?.path !== local.path) return
-    const codeEl = container.querySelector("code") as HTMLElement | undefined
-    if (!codeEl) return
-    const target = (await ctx.file.node(local.path))?.selection
-    const current = getSelectionInContainer(container)
-    const sel = window.getSelection()
-    if (!sel) return
-    if (!target) {
-      if (current) {
-        isProgrammaticSelection = true
-        sel.removeAllRanges()
-        queueMicrotask(() => {
-          isProgrammaticSelection = false
-        })
-      }
-      return
-    }
-    const matches = !!(
-      current &&
-      current.sl === target.startLine &&
-      current.sch === target.startChar &&
-      current.el === target.endLine &&
-      current.ech === target.endChar
-    )
-    if (matches) return
-    const lines = Array.from(codeEl.querySelectorAll(".line"))
-    if (lines.length === 0) return
-    let sIdx = Math.max(0, target.startLine - 1)
-    let eIdx = Math.max(0, target.endLine - 1)
-    let sChar = Math.max(0, target.startChar || 0)
-    let eChar = Math.max(0, target.endChar || 0)
-    if (sIdx > eIdx || (sIdx === eIdx && sChar > eChar)) {
-      const ti = sIdx
-      sIdx = eIdx
-      eIdx = ti
-      const tc = sChar
-      sChar = eChar
-      eChar = tc
-    }
-    if (eChar === 0 && eIdx > sIdx) {
-      eIdx = eIdx - 1
-      eChar = Number.POSITIVE_INFINITY
-    }
-    if (sIdx >= lines.length) return
-    if (eIdx >= lines.length) eIdx = lines.length - 1
-    const s = getNodeOffsetInLine(lines[sIdx], sChar) ?? { node: lines[sIdx], offset: 0 }
-    const e = getNodeOffsetInLine(lines[eIdx], eChar) ?? { node: lines[eIdx], offset: lines[eIdx].childNodes.length }
-    const range = document.createRange()
-    range.setStart(s.node, s.offset)
-    range.setEnd(e.node, e.offset)
-    isProgrammaticSelection = true
-    sel.removeAllRanges()
-    sel.addRange(range)
-    queueMicrotask(() => {
-      isProgrammaticSelection = false
-    })
-  })
-
-  // Build/toggle split layout and apply folding (both unified and split)
-  createEffect(() => {
-    const content = html()
-    if (!container || !content) return
-    const view = ctx.file.view(local.path)
-
-    const pres = Array.from(container.querySelectorAll<HTMLPreElement>("pre"))
-    if (pres.length === 0) return
-    const originalPre = pres[0]
-
-    const split = container.querySelector<HTMLElement>(".diff-split")
-    if (view === "diff-split") {
-      applySplitDiff(container)
-      const next = container.querySelector<HTMLElement>(".diff-split")
-      if (next) next.style.display = ""
-      originalPre.style.display = "none"
-    } else {
-      if (split) split.style.display = "none"
-      originalPre.style.display = ""
-    }
-
-    const expanded = ctx.file.folded(local.path)
-    if (view === "diff-split") {
-      const left = container.querySelector<HTMLElement>(".diff-split pre:nth-child(1) code")
-      const right = container.querySelector<HTMLElement>(".diff-split pre:nth-child(2) code")
-      if (left)
-        applyDiffFolding(left, 3, { expanded, onExpand: (key) => ctx.file.unfold(local.path, key), side: "left" })
-      if (right)
-        applyDiffFolding(right, 3, { expanded, onExpand: (key) => ctx.file.unfold(local.path, key), side: "right" })
-    } else {
-      const code = container.querySelector<HTMLElement>("pre code")
-      if (code)
-        applyDiffFolding(code, 3, {
-          expanded,
-          onExpand: (key) => ctx.file.unfold(local.path, key),
-        })
-    }
-  })
-
-  // Highlight groups + scroll coupling
-  const clearHighlights = () => {
-    if (!container) return
-    container.querySelectorAll<HTMLElement>(".diff-selected").forEach((el) => el.classList.remove("diff-selected"))
-  }
-
-  const applyHighlight = (idx: number, scroll?: boolean) => {
-    if (!container) return
-    const view = ctx.file.view(local.path)
-    if (view === "raw") return
-
-    clearHighlights()
-
-    const nodes: HTMLElement[] = []
-    if (view === "diff-split") {
-      const left = container.querySelector<HTMLElement>(".diff-split pre:nth-child(1) code")
-      const right = container.querySelector<HTMLElement>(".diff-split pre:nth-child(2) code")
-      if (left)
-        nodes.push(...Array.from(left.querySelectorAll<HTMLElement>(`[data-chgrp="${idx}"][data-diff="remove"]`)))
-      if (right)
-        nodes.push(...Array.from(right.querySelectorAll<HTMLElement>(`[data-chgrp="${idx}"][data-diff="add"]`)))
-    } else {
-      const code = container.querySelector<HTMLElement>("pre code")
-      if (code) nodes.push(...Array.from(code.querySelectorAll<HTMLElement>(`[data-chgrp="${idx}"]`)))
-    }
-
-    for (const n of nodes) n.classList.add("diff-selected")
-    if (scroll && nodes.length) nodes[0].scrollIntoView({ block: "center", behavior: "smooth" })
-  }
-
-  const countGroups = () => {
-    if (!container) return 0
-    const code = container.querySelector<HTMLElement>("pre code")
-    if (!code) return 0
-    const set = new Set<string>()
-    for (const el of Array.from(code.querySelectorAll<HTMLElement>(".diff-line[data-chgrp]"))) {
-      const v = el.getAttribute("data-chgrp")
-      if (v != undefined) set.add(v)
-    }
-    return set.size
-  }
-
-  let lastIdx: number | undefined = undefined
-  let lastView: string | undefined
-  let lastContent: string | undefined
-  let lastRawIdx: number | undefined = undefined
-  createEffect(() => {
-    const content = html()
-    if (!container || !content) return
-    const view = ctx.file.view(local.path)
-    const raw = ctx.file.changeIndex(local.path)
-    if (raw === undefined) return
-    const total = countGroups()
-    if (total <= 0) return
-    const next = ((raw % total) + total) % total
-
-    const navigated = lastRawIdx !== undefined && lastRawIdx !== raw
-
-    if (next !== raw) {
-      ctx.file.setChangeIndex(local.path, next)
-      applyHighlight(next, true)
-    } else {
-      if (lastView !== view || lastContent !== content) applyHighlight(next)
-      if ((lastIdx !== undefined && lastIdx !== next) || navigated) applyHighlight(next, true)
-    }
-
-    lastRawIdx = raw
-    lastIdx = next
-    lastView = view
-    lastContent = content
-  })
-
-  return (
-    <div
-      ref={(el) => {
-        container = el
-      }}
-      innerHTML={html()}
-      class="
-          font-mono text-xs tracking-wide overflow-y-auto h-full
-          [&]:[counter-reset:line]
-          [&_pre]:focus-visible:outline-none
-          [&_pre]:overflow-x-auto [&_pre]:no-scrollbar
-          [&_code]:min-w-full [&_code]:inline-block 
-          [&_.tab]:relative
-          [&_.tab::before]:content['⇥']
-          [&_.tab::before]:absolute
-          [&_.tab::before]:opacity-0
-          [&_.space]:relative
-          [&_.space::before]:content-['·']
-          [&_.space::before]:absolute
-          [&_.space::before]:opacity-0
-          [&_.line]:inline-block [&_.line]:w-full
-          [&_.line]:hover:bg-background-element
-          [&_.line::before]:sticky [&_.line::before]:left-0
-          [&_.line::before]:w-12 [&_.line::before]:pr-4
-          [&_.line::before]:z-10
-          [&_.line::before]:bg-background-panel
-          [&_.line::before]:text-text-muted/60
-          [&_.line::before]:text-right [&_.line::before]:inline-block
-          [&_.line::before]:select-none
-          [&_.line::before]:[counter-increment:line]
-          [&_.line::before]:content-[counter(line)]
-          [&_.line-number-highlight]:bg-accent/20
-          [&_.line-number-highlight::before]:bg-accent/40!
-          [&_.line-number-highlight::before]:text-background-panel!
-          [&_code.code-diff_.line::before]:content-['']
-          [&_code.code-diff_.line::before]:w-0
-          [&_code.code-diff_.line::before]:pr-0
-          [&_.diff-split_code.code-diff::before]:w-10
-          [&_.diff-split_.diff-newln]:left-0
-          [&_.diff-oldln]:sticky [&_.diff-oldln]:left-0
-          [&_.diff-oldln]:w-10 [&_.diff-oldln]:pr-2
-          [&_.diff-oldln]:z-40
-          [&_.diff-oldln]:text-text-muted/60
-          [&_.diff-oldln]:text-right [&_.diff-oldln]:inline-block
-          [&_.diff-oldln]:select-none
-          [&_.diff-oldln]:bg-background-panel
-          [&_.diff-newln]:sticky [&_.diff-newln]:left-10
-          [&_.diff-newln]:w-10 [&_.diff-newln]:pr-2
-          [&_.diff-newln]:z-40
-          [&_.diff-newln]:text-text-muted/60
-          [&_.diff-newln]:text-right [&_.diff-newln]:inline-block
-          [&_.diff-newln]:select-none
-          [&_.diff-newln]:bg-background-panel
-          [&_.diff-add]:bg-success/20!
-          [&_.diff-add.diff-selected]:bg-success/50!
-          [&_.diff-add_.diff-oldln]:bg-success!
-          [&_.diff-add_.diff-oldln]:text-background-panel!
-          [&_.diff-add_.diff-newln]:bg-success!
-          [&_.diff-add_.diff-newln]:text-background-panel!
-          [&_.diff-remove]:bg-error/20!
-          [&_.diff-remove.diff-selected]:bg-error/50!
-          [&_.diff-remove_.diff-newln]:bg-error!
-          [&_.diff-remove_.diff-newln]:text-background-panel!
-          [&_.diff-remove_.diff-oldln]:bg-error!
-          [&_.diff-remove_.diff-oldln]:text-background-panel!
-          [&_.diff-sign]:inline-block [&_.diff-sign]:px-2 [&_.diff-sign]:select-none
-          [&_.diff-blank]:bg-background-element
-          [&_.diff-blank_.diff-oldln]:bg-background-element
-          [&_.diff-blank_.diff-newln]:bg-background-element
-          [&_.diff-collapsed]:block! [&_.diff-collapsed]:w-full [&_.diff-collapsed]:relative
-          [&_.diff-collapsed]:select-none
-          [&_.diff-collapsed]:bg-info/20 [&_.diff-collapsed]:hover:bg-info/40!
-          [&_.diff-collapsed]:text-info/80 [&_.diff-collapsed]:hover:text-info
-          [&_.diff-collapsed]:text-xs
-          [&_.diff-collapsed_.diff-oldln]:bg-info!
-          [&_.diff-collapsed_.diff-newln]:bg-info!
-        "
-      classList={{
-        ...(local.classList || {}),
-        [local.class ?? ""]: !!local.class,
-      }}
-      {...others}
-    ></div>
-  )
-}
-
-function transformerUnifiedDiff(): ShikiTransformer {
-  const kinds = new Map<number, string>()
-  const meta = new Map<number, { old?: number; new?: number; sign?: string }>()
-  let isDiff = false
-
-  return {
-    name: "unified-diff",
-    preprocess(input) {
-      kinds.clear()
-      meta.clear()
-      isDiff = false
-
-      const ls = input.split(/\r?\n/)
-      const out: Array<string> = []
-      let oldNo = 0
-      let newNo = 0
-      let inHunk = false
-
-      for (let i = 0; i < ls.length; i++) {
-        const s = ls[i]
-
-        const m = s.match(/^@@\s*-(\d+)(?:,(\d+))?\s+\+(\d+)(?:,(\d+))?\s*@@/)
-        if (m) {
-          isDiff = true
-          inHunk = true
-          oldNo = parseInt(m[1], 10)
-          newNo = parseInt(m[3], 10)
-          continue
-        }
-
-        if (
-          /^diff --git /.test(s) ||
-          /^Index: /.test(s) ||
-          /^--- /.test(s) ||
-          /^\+\+\+ /.test(s) ||
-          /^[=]{3,}$/.test(s) ||
-          /^\*{3,}$/.test(s) ||
-          /^\\ No newline at end of file$/.test(s)
-        ) {
-          isDiff = true
-          continue
-        }
-
-        if (!inHunk) {
-          out.push(s)
-          continue
-        }
-
-        if (/^\+/.test(s)) {
-          out.push(s)
-          const ln = out.length
-          kinds.set(ln, "add")
-          meta.set(ln, { new: newNo, sign: "+" })
-          newNo++
-          continue
-        }
-
-        if (/^-/.test(s)) {
-          out.push(s)
-          const ln = out.length
-          kinds.set(ln, "remove")
-          meta.set(ln, { old: oldNo, sign: "-" })
-          oldNo++
-          continue
-        }
-
-        if (/^ /.test(s)) {
-          out.push(s)
-          const ln = out.length
-          kinds.set(ln, "context")
-          meta.set(ln, { old: oldNo, new: newNo })
-          oldNo++
-          newNo++
-          continue
-        }
-
-        // fallback in hunks
-        out.push(s)
-      }
-
-      return out.join("\n").trimEnd()
-    },
-    code(node) {
-      if (isDiff) this.addClassToHast(node, "code-diff")
-    },
-    pre(node) {
-      if (isDiff) this.addClassToHast(node, "code-diff")
-    },
-    line(node, line) {
-      if (!isDiff) return
-      const kind = kinds.get(line)
-      if (!kind) return
-
-      const m = meta.get(line) || {}
-
-      this.addClassToHast(node, "diff-line")
-      this.addClassToHast(node, `diff-${kind}`)
-      node.properties = node.properties || {}
-      ;(node.properties as any)["data-diff"] = kind
-      if (m.old != undefined) (node.properties as any)["data-old"] = String(m.old)
-      if (m.new != undefined) (node.properties as any)["data-new"] = String(m.new)
-
-      const oldSpan = {
-        type: "element",
-        tagName: "span",
-        properties: { className: ["diff-oldln"] },
-        children: [{ type: "text", value: m.old != undefined ? String(m.old) : " " }],
-      }
-      const newSpan = {
-        type: "element",
-        tagName: "span",
-        properties: { className: ["diff-newln"] },
-        children: [{ type: "text", value: m.new != undefined ? String(m.new) : " " }],
-      }
-
-      if (kind === "add" || kind === "remove" || kind === "context") {
-        const first = (node.children && (node.children as any[])[0]) as any
-        if (first && first.type === "element" && first.children && first.children.length > 0) {
-          const t = first.children[0]
-          if (t && t.type === "text" && typeof t.value === "string" && t.value.length > 0) {
-            const ch = t.value[0]
-            if (ch === "+" || ch === "-" || ch === " ") t.value = t.value.slice(1)
-          }
-        }
-      }
-
-      const signSpan = {
-        type: "element",
-        tagName: "span",
-        properties: { className: ["diff-sign"] },
-        children: [{ type: "text", value: (m as any).sign || " " }],
-      }
-
-      // @ts-expect-error hast typing across versions
-      node.children = [oldSpan, newSpan, signSpan, ...(node.children || [])]
-    },
-  }
-}
-
-function transformerDiffGroups(): ShikiTransformer {
-  let group = -1
-  let inGroup = false
-  return {
-    name: "diff-groups",
-    pre() {
-      group = -1
-      inGroup = false
-    },
-    line(node) {
-      const props = (node.properties || {}) as any
-      const kind = props["data-diff"] as string | undefined
-      if (kind === "add" || kind === "remove") {
-        if (!inGroup) {
-          group += 1
-          inGroup = true
-        }
-        ;(node.properties as any)["data-chgrp"] = String(group)
-      } else {
-        inGroup = false
-      }
-    },
-  }
-}
-
-function applyDiffFolding(
-  root: HTMLElement,
-  context = 3,
-  options?: { expanded?: string[]; onExpand?: (key: string) => void; side?: "left" | "right" },
-) {
-  if (!root.classList.contains("code-diff")) return
-
-  // Cleanup: unwrap previous collapsed blocks and remove toggles
-  const blocks = Array.from(root.querySelectorAll<HTMLElement>(".diff-collapsed-block"))
-  for (const block of blocks) {
-    const p = block.parentNode
-    if (!p) {
-      block.remove()
-      continue
-    }
-    while (block.firstChild) p.insertBefore(block.firstChild, block)
-    block.remove()
-  }
-  const toggles = Array.from(root.querySelectorAll<HTMLElement>(".diff-collapsed"))
-  for (const t of toggles) t.remove()
-
-  const lines = Array.from(root.querySelectorAll<HTMLElement>(".diff-line"))
-  if (lines.length === 0) return
-
-  const n = lines.length
-  const isChange = lines.map((l) => l.dataset["diff"] === "add" || l.dataset["diff"] === "remove")
-  const isContext = lines.map((l) => l.dataset["diff"] === "context")
-  if (!isChange.some(Boolean)) return
-
-  const visible = new Array(n).fill(false) as boolean[]
-  for (let i = 0; i < n; i++) if (isChange[i]) visible[i] = true
-  for (let i = 0; i < n; i++) {
-    if (isChange[i]) {
-      const s = Math.max(0, i - context)
-      const e = Math.min(n - 1, i + context)
-      for (let j = s; j <= e; j++) if (isContext[j]) visible[j] = true
-    }
-  }
-
-  type Range = { start: number; end: number }
-  const ranges: Range[] = []
-  let i = 0
-  while (i < n) {
-    if (!visible[i] && isContext[i]) {
-      let j = i
-      while (j + 1 < n && !visible[j + 1] && isContext[j + 1]) j++
-      ranges.push({ start: i, end: j })
-      i = j + 1
-    } else {
-      i++
-    }
-  }
-
-  for (const r of ranges) {
-    const start = lines[r.start]
-    const end = lines[r.end]
-    const count = r.end - r.start + 1
-    const minCollapse = 20
-    if (count < minCollapse) {
-      continue
-    }
-
-    // Wrap the entire collapsed chunk (including trailing newline) so it takes no space
-    const block = document.createElement("span")
-    block.className = "diff-collapsed-block"
-    start.parentElement?.insertBefore(block, start)
-
-    let cur: Node | undefined = start
-    while (cur) {
-      const next: Node | undefined = cur.nextSibling || undefined
-      block.appendChild(cur)
-      if (cur === end) {
-        // Also move the newline after the last line into the block
-        if (next && next.nodeType === Node.TEXT_NODE && (next.textContent || "").startsWith("\n")) {
-          block.appendChild(next)
-        }
-        break
-      }
-      cur = next
-    }
-
-    block.style.display = "none"
-    const row = document.createElement("span")
-    row.className = "line diff-collapsed"
-    row.setAttribute("data-kind", "collapsed")
-    row.setAttribute("data-count", String(count))
-    row.setAttribute("tabindex", "0")
-    row.setAttribute("role", "button")
-
-    const oldln = document.createElement("span")
-    oldln.className = "diff-oldln"
-    oldln.textContent = " "
-
-    const newln = document.createElement("span")
-    newln.className = "diff-newln"
-    newln.textContent = " "
-
-    const sign = document.createElement("span")
-    sign.className = "diff-sign"
-    sign.textContent = "…"
-
-    const label = document.createElement("span")
-    label.textContent = `show ${count} unchanged line${count > 1 ? "s" : ""}`
-
-    const key = `o${start.dataset["old"] || ""}-${end.dataset["old"] || ""}:n${start.dataset["new"] || ""}-${end.dataset["new"] || ""}`
-
-    const show = (record = true) => {
-      if (record) options?.onExpand?.(key)
-      const p = block.parentNode
-      if (p) {
-        while (block.firstChild) p.insertBefore(block.firstChild, block)
-        block.remove()
-      }
-      row.remove()
-    }
-
-    row.addEventListener("click", () => show(true))
-    row.addEventListener("keydown", (ev) => {
-      if (ev.key === "Enter" || ev.key === " ") {
-        ev.preventDefault()
-        show(true)
-      }
-    })
-
-    block.parentElement?.insertBefore(row, block)
-    if (!options?.side || options.side === "left") row.appendChild(oldln)
-    if (!options?.side || options.side === "right") row.appendChild(newln)
-    row.appendChild(sign)
-    row.appendChild(label)
-
-    if (options?.expanded && options.expanded.includes(key)) {
-      show(false)
-    }
-  }
-}
-
-function applySplitDiff(container: HTMLElement) {
-  const pres = Array.from(container.querySelectorAll<HTMLPreElement>("pre"))
-  if (pres.length === 0) return
-  const originalPre = pres[0]
-  const originalCode = originalPre.querySelector("code") as HTMLElement | undefined
-  if (!originalCode || !originalCode.classList.contains("code-diff")) return
-
-  // Rebuild split each time to match current content
-  const existing = container.querySelector<HTMLElement>(".diff-split")
-  if (existing) existing.remove()
-
-  const grid = document.createElement("div")
-  grid.className = "diff-split grid grid-cols-2 gap-x-6"
-
-  const makeColumn = () => {
-    const pre = document.createElement("pre")
-    pre.className = originalPre.className
-    const code = document.createElement("code")
-    code.className = originalCode.className
-    pre.appendChild(code)
-    return { pre, code }
-  }
-
-  const left = makeColumn()
-  const right = makeColumn()
-
-  // Helpers
-  const cloneSide = (line: HTMLElement, side: "old" | "new"): HTMLElement => {
-    const clone = line.cloneNode(true) as HTMLElement
-    const oldln = clone.querySelector(".diff-oldln")
-    const newln = clone.querySelector(".diff-newln")
-    if (side === "old") {
-      if (newln) newln.remove()
-    } else {
-      if (oldln) oldln.remove()
-    }
-    return clone
-  }
-
-  const blankLine = (side: "old" | "new", kind: "add" | "remove"): HTMLElement => {
-    const span = document.createElement("span")
-    span.className = "line diff-line diff-blank"
-    span.setAttribute("data-diff", kind)
-    const ln = document.createElement("span")
-    ln.className = side === "old" ? "diff-oldln" : "diff-newln"
-    ln.textContent = " "
-    span.appendChild(ln)
-    return span
-  }
-
-  const lines = Array.from(originalCode.querySelectorAll<HTMLElement>(".diff-line"))
-  let i = 0
-  while (i < lines.length) {
-    const cur = lines[i]
-    const kind = cur.dataset["diff"]
-
-    if (kind === "context") {
-      left.code.appendChild(cloneSide(cur, "old"))
-      left.code.appendChild(document.createTextNode("\n"))
-      right.code.appendChild(cloneSide(cur, "new"))
-      right.code.appendChild(document.createTextNode("\n"))
-      i++
-      continue
-    }
-
-    if (kind === "remove") {
-      // Batch consecutive removes and following adds, then pair
-      const removes: HTMLElement[] = []
-      const adds: HTMLElement[] = []
-      let j = i
-      while (j < lines.length && lines[j].dataset["diff"] === "remove") {
-        removes.push(lines[j])
-        j++
-      }
-      let k = j
-      while (k < lines.length && lines[k].dataset["diff"] === "add") {
-        adds.push(lines[k])
-        k++
-      }
-
-      const pairs = Math.min(removes.length, adds.length)
-      for (let p = 0; p < pairs; p++) {
-        left.code.appendChild(cloneSide(removes[p], "old"))
-        left.code.appendChild(document.createTextNode("\n"))
-        right.code.appendChild(cloneSide(adds[p], "new"))
-        right.code.appendChild(document.createTextNode("\n"))
-      }
-      for (let p = pairs; p < removes.length; p++) {
-        left.code.appendChild(cloneSide(removes[p], "old"))
-        left.code.appendChild(document.createTextNode("\n"))
-        right.code.appendChild(blankLine("new", "remove"))
-        right.code.appendChild(document.createTextNode("\n"))
-      }
-      for (let p = pairs; p < adds.length; p++) {
-        left.code.appendChild(blankLine("old", "add"))
-        left.code.appendChild(document.createTextNode("\n"))
-        right.code.appendChild(cloneSide(adds[p], "new"))
-        right.code.appendChild(document.createTextNode("\n"))
-      }
-
-      i = k
-      continue
-    }
-
-    if (kind === "add") {
-      // Run of adds not preceded by removes
-      const adds: HTMLElement[] = []
-      let j = i
-      while (j < lines.length && lines[j].dataset["diff"] === "add") {
-        adds.push(lines[j])
-        j++
-      }
-      for (let p = 0; p < adds.length; p++) {
-        left.code.appendChild(blankLine("old", "add"))
-        left.code.appendChild(document.createTextNode("\n"))
-        right.code.appendChild(cloneSide(adds[p], "new"))
-        right.code.appendChild(document.createTextNode("\n"))
-      }
-      i = j
-      continue
-    }
-
-    // Any other kind: mirror as context
-    left.code.appendChild(cloneSide(cur, "old"))
-    left.code.appendChild(document.createTextNode("\n"))
-    right.code.appendChild(cloneSide(cur, "new"))
-    right.code.appendChild(document.createTextNode("\n"))
-    i++
-  }
-
-  grid.appendChild(left.pre)
-  grid.appendChild(right.pre)
-  container.appendChild(grid)
-}