mini: move frontend into tui package (#37754)

packages/tui/test/mini/stream.test.ts

@@ -0,0 +1,56 @@
+import { describe, expect, test } from "bun:test"
+import { writeSessionOutput } from "../../src/mini/stream"
+import type { FooterApi, FooterEvent, StreamCommit } from "../../src/mini/types"
+
+function footer() {
+  const events: FooterEvent[] = []
+  const commits: StreamCommit[] = []
+
+  const api: FooterApi = {
+    isClosed: false,
+    onPrompt: () => () => {},
+    onQueuedRemove: () => () => {},
+    onClose: () => () => {},
+    event: (next) => {
+      events.push(next)
+    },
+    append: (next) => {
+      commits.push(next)
+    },
+    idle: () => Promise.resolve(),
+    close: () => {},
+    destroy: () => {},
+  }
+
+  return { api, events, commits }
+}
+
+describe("run stream bridge", () => {
+  test("defaults status patches to running phase", () => {
+    const out = footer()
+
+    writeSessionOutput(
+      {
+        footer: out.api,
+      },
+      {
+        commits: [],
+        footer: {
+          patch: {
+            status: "assistant responding",
+          },
+        },
+      },
+    )
+
+    expect(out.events).toEqual([
+      {
+        type: "stream.patch",
+        patch: {
+          phase: "running",
+          status: "assistant responding",
+        },
+      },
+    ])
+  })
+})