Import AITURK IDE 1.0.0-beta.1 from Hermes 63279301; preserve MIT license

apps/desktop/src/lib/preview-targets.ts

@@ -0,0 +1,63 @@
+const PREVIEW_MARKDOWN_RE = /\[Preview:[^\]]+\]\((?<href>#preview[:/][^)]+)\)/gi
+
+export function stripPreviewTargets(text: string): string {
+  return text
+    .replace(PREVIEW_MARKDOWN_RE, '')
+    .replace(/[ \t]+\n/g, '\n')
+    .replace(/\n{3,}/g, '\n\n')
+    .trim()
+}
+
+export function extractPreviewTargets(text: string): string[] {
+  const targets: string[] = []
+  const seen = new Set<string>()
+
+  for (const match of text.matchAll(PREVIEW_MARKDOWN_RE)) {
+    const target = previewTargetFromMarkdownHref(match.groups?.href)
+
+    if (target && !seen.has(target)) {
+      seen.add(target)
+      targets.push(target)
+    }
+  }
+
+  return targets
+}
+
+export function previewMarkdownHref(target: string): string {
+  return `#preview/${encodeURIComponent(target)}`
+}
+
+export function previewTargetFromMarkdownHref(href?: string): string | null {
+  if (!href?.startsWith('#preview:') && !href?.startsWith('#preview/')) {
+    return null
+  }
+
+  try {
+    return decodeURIComponent(href.slice('#preview'.length + 1))
+  } catch {
+    return null
+  }
+}
+
+export function previewName(target: string): string {
+  try {
+    const url = new URL(target)
+
+    if (url.protocol === 'file:') {
+      return decodeURIComponent(url.pathname).split(/[\\/]/).filter(Boolean).pop() || target
+    }
+
+    const file = url.pathname.split('/').filter(Boolean).pop()
+
+    return file || url.host
+  } catch {
+    return target.split(/[\\/]/).filter(Boolean).pop() || target
+  }
+}
+
+export function previewDisplayLabel(target: string): string {
+  const escaped = previewName(target).replace(/[[\]\\]/g, '\\$&')
+
+  return `Preview: ${escaped}`
+}