Add global web auth flows

src/server/sessions/authService.test.ts

@@ -0,0 +1,42 @@
+import { AuthStorage, ModelRegistry } from "@earendil-works/pi-coding-agent";
+import { describe, expect, it } from "vitest";
+import { AuthService, type AuthChange } from "./authService.js";
+
+describe("AuthService", () => {
+  it("saves API keys and emits a global auth change", () => {
+    const { auth, authStorage, changes } = createAuthService();
+
+    expect(auth.saveApiKey("anthropic", "sk-test")).toEqual({ accepted: true });
+
+    expect(authStorage.get("anthropic")).toEqual({ type: "api_key", key: "sk-test" });
+    expect(changes).toEqual([{}]);
+    auth.dispose();
+  });
+
+  it("logs out providers and emits the removed provider id", () => {
+    const { auth, authStorage, changes } = createAuthService({ anthropic: { type: "api_key", key: "sk-test" } });
+
+    expect(auth.logoutProvider("anthropic")).toEqual({ accepted: true });
+
+    expect(authStorage.get("anthropic")).toBeUndefined();
+    expect(changes).toEqual([{ removedProviderId: "anthropic" }]);
+    auth.dispose();
+  });
+
+  it("rejects blank API keys", () => {
+    const { auth, changes } = createAuthService();
+
+    expect(() => { auth.saveApiKey("anthropic", "   "); }).toThrow("API key is required");
+    expect(changes).toEqual([]);
+    auth.dispose();
+  });
+});
+
+function createAuthService(data: Parameters<typeof AuthStorage.inMemory>[0] = {}) {
+  const authStorage = AuthStorage.inMemory(data);
+  const modelRegistry = ModelRegistry.create(authStorage);
+  const auth = new AuthService({ modelRegistry });
+  const changes: AuthChange[] = [];
+  auth.subscribe((change) => { changes.push(change); });
+  return { auth, authStorage, changes };
+}