refactor: share nextcloud target normalization

extensions/nextcloud-talk/src/normalize.test.ts

@@ -0,0 +1,28 @@
+import { describe, expect, it } from "vitest";
+import {
+  looksLikeNextcloudTalkTargetId,
+  normalizeNextcloudTalkMessagingTarget,
+  stripNextcloudTalkTargetPrefix,
+} from "./normalize.js";
+
+describe("nextcloud-talk target normalization", () => {
+  it("strips supported prefixes to a room token", () => {
+    expect(stripNextcloudTalkTargetPrefix(" room:abc123 ")).toBe("abc123");
+    expect(stripNextcloudTalkTargetPrefix("nextcloud-talk:room:AbC123")).toBe("AbC123");
+    expect(stripNextcloudTalkTargetPrefix("nc-talk:room:ops")).toBe("ops");
+    expect(stripNextcloudTalkTargetPrefix("nc:room:ops")).toBe("ops");
+    expect(stripNextcloudTalkTargetPrefix("room:   ")).toBeUndefined();
+  });
+
+  it("normalizes messaging targets to lowercase channel ids", () => {
+    expect(normalizeNextcloudTalkMessagingTarget("room:AbC123")).toBe("nextcloud-talk:abc123");
+    expect(normalizeNextcloudTalkMessagingTarget("nc-talk:room:Ops")).toBe("nextcloud-talk:ops");
+  });
+
+  it("detects prefixed and bare room ids", () => {
+    expect(looksLikeNextcloudTalkTargetId("nextcloud-talk:room:abc12345")).toBe(true);
+    expect(looksLikeNextcloudTalkTargetId("nc:opsroom1")).toBe(true);
+    expect(looksLikeNextcloudTalkTargetId("abc12345")).toBe(true);
+    expect(looksLikeNextcloudTalkTargetId("")).toBe(false);
+  });
+});