feat: add wiki mvp commands (#532)

src/services/wiki/status.ts

@@ -0,0 +1,82 @@
+import { readdir, stat } from 'fs/promises'
+import { getWikiPaths } from './paths.js'
+import type { WikiStatus } from './types.js'
+
+async function pathExists(path: string): Promise<boolean> {
+  try {
+    await stat(path)
+    return true
+  } catch {
+    return false
+  }
+}
+
+async function listMarkdownFiles(dir: string): Promise<string[]> {
+  if (!(await pathExists(dir))) {
+    return []
+  }
+
+  const entries = await readdir(dir, { withFileTypes: true })
+  const files: string[] = []
+
+  for (const entry of entries) {
+    const fullPath = `${dir}/${entry.name}`
+    if (entry.isDirectory()) {
+      files.push(...(await listMarkdownFiles(fullPath)))
+    } else if (entry.isFile() && entry.name.endsWith('.md')) {
+      files.push(fullPath)
+    }
+  }
+
+  return files
+}
+
+async function getLastUpdatedAt(pathsToCheck: string[]): Promise<string | null> {
+  const mtimes: number[] = []
+
+  for (const path of pathsToCheck) {
+    try {
+      const info = await stat(path)
+      mtimes.push(info.mtimeMs)
+    } catch {
+      continue
+    }
+  }
+
+  if (mtimes.length === 0) {
+    return null
+  }
+
+  return new Date(Math.max(...mtimes)).toISOString()
+}
+
+export async function getWikiStatus(cwd: string): Promise<WikiStatus> {
+  const paths = getWikiPaths(cwd)
+
+  const [hasRoot, hasSchema, hasIndex, hasLog, pages, sources] =
+    await Promise.all([
+      pathExists(paths.root),
+      pathExists(paths.schemaFile),
+      pathExists(paths.indexFile),
+      pathExists(paths.logFile),
+      listMarkdownFiles(paths.pagesDir),
+      listMarkdownFiles(paths.sourcesDir),
+    ])
+
+  return {
+    initialized: hasRoot && hasSchema && hasIndex && hasLog,
+    root: paths.root,
+    pageCount: pages.length,
+    sourceCount: sources.length,
+    hasSchema,
+    hasIndex,
+    hasLog,
+    lastUpdatedAt: await getLastUpdatedAt([
+      paths.schemaFile,
+      paths.indexFile,
+      paths.logFile,
+      ...pages,
+      ...sources,
+    ]),
+  }
+}