refactor(server): canonicalize service API (#31049)

packages/tui/src/context/path-format.tsx

@@ -0,0 +1,39 @@
+import path from "path"
+import { createContext, useContext, type ParentProps } from "solid-js"
+import { abbreviateHome, useTuiEnvironment } from "../runtime"
+
+const context = createContext<{
+  path: () => string
+  format: (input?: string) => string
+}>()
+
+export function PathFormatterProvider(props: ParentProps<{ path: string | undefined }>) {
+  const environment = useTuiEnvironment()
+  return (
+    <context.Provider
+      value={{
+        path: () => props.path || environment.cwd,
+        format: (input) => formatPath(input, props.path || environment.cwd, environment.paths.home),
+      }}
+    >
+      {props.children}
+    </context.Provider>
+  )
+}
+
+export function usePathFormatter() {
+  const value = useContext(context)
+  if (!value) throw new Error("PathFormatter context must be used within a PathFormatterProvider")
+  return value
+}
+
+function formatPath(input: string | undefined, base: string, home: string) {
+  if (typeof input !== "string" || !input) return ""
+
+  const absolute = path.isAbsolute(input) ? input : path.resolve(base, input)
+  const relative = path.relative(base, absolute)
+
+  if (!relative) return "."
+  if (relative !== ".." && !relative.startsWith(".." + path.sep)) return relative
+  return abbreviateHome(absolute, home)
+}