chore: cleanup (#14113)

packages/app/src/pages/session/handoff.ts

@@ -0,0 +1,36 @@
+import type { SelectedLineRange } from "@/context/file"
+
+type HandoffSession = {
+  prompt: string
+  files: Record<string, SelectedLineRange | null>
+}
+
+const MAX = 40
+
+const store = {
+  session: new Map<string, HandoffSession>(),
+  terminal: new Map<string, string[]>(),
+}
+
+const touch = <K, V>(map: Map<K, V>, key: K, value: V) => {
+  map.delete(key)
+  map.set(key, value)
+  while (map.size > MAX) {
+    const first = map.keys().next().value
+    if (first === undefined) return
+    map.delete(first)
+  }
+}
+
+export const setSessionHandoff = (key: string, patch: Partial<HandoffSession>) => {
+  const prev = store.session.get(key) ?? { prompt: "", files: {} }
+  touch(store.session, key, { ...prev, ...patch })
+}
+
+export const getSessionHandoff = (key: string) => store.session.get(key)
+
+export const setTerminalHandoff = (key: string, value: string[]) => {
+  touch(store.terminal, key, value)
+}
+
+export const getTerminalHandoff = (key: string) => store.terminal.get(key)