feat: sync moves to a plugin, desktop gets multiple accounts (#1580, #1654)

src/backend/tests/sync/client/link-store.test.ts

@@ -21,8 +21,9 @@ vi.mock("../../../utils/system-crypto.js", () => ({
 
 const { TestSqliteDatabase } =
   await import("../../database/repositories/test-support.js");
-const { createLink, deleteLink, getLink, updateLink } =
+const { createLink, deleteLink, getLink, listLinks, updateLink } =
   await import("../../../sync/client/link-store.js");
+const { setActiveUserId } = await import("../../../sync/accounts.js");
 
 let db: InstanceType<typeof TestSqliteDatabase>;
 
@@ -96,3 +97,79 @@ describe("the desktop's link", () => {
     expect(await updateLink({ cursor: 1 })).toBeNull();
   });
 });
+
+describe("several links", () => {
+  beforeEach(async () => {
+    await db.run(sql`UPDATE users SET is_admin = 1 WHERE id = 'local'`);
+    await db.run(
+      sql`INSERT INTO users (id, username, password_hash) VALUES ('second', 'second', '')`,
+    );
+  });
+
+  it("keeps one link per local user", async () => {
+    await createLink({
+      userId: "local",
+      serverUrl: "https://a",
+      sessionToken: "a",
+    });
+    await createLink({
+      userId: "second",
+      serverUrl: "https://b",
+      sessionToken: "b",
+    });
+    expect((await listLinks()).map((link) => link.serverUrl).sort()).toEqual([
+      "https://a",
+      "https://b",
+    ]);
+    expect((await getLink("second"))?.serverUrl).toBe("https://b");
+    expect((await getLink("local"))?.serverUrl).toBe("https://a");
+  });
+
+  it("answers for the active account when no user is given", async () => {
+    await createLink({
+      userId: "local",
+      serverUrl: "https://a",
+      sessionToken: "a",
+    });
+    await createLink({
+      userId: "second",
+      serverUrl: "https://b",
+      sessionToken: "b",
+    });
+    expect((await getLink())?.serverUrl).toBe("https://a");
+    await setActiveUserId("second");
+    expect((await getLink())?.serverUrl).toBe("https://b");
+  });
+
+  it("changes and removes only the link it is asked about", async () => {
+    await createLink({
+      userId: "local",
+      serverUrl: "https://a",
+      sessionToken: "a",
+    });
+    await createLink({
+      userId: "second",
+      serverUrl: "https://b",
+      sessionToken: "b",
+    });
+    await updateLink({ cursor: 9, status: "offline" }, "second");
+    expect((await getLink("local"))?.cursor).toBe(0);
+    expect((await getLink("second"))?.cursor).toBe(9);
+    await deleteLink("second");
+    expect(await getLink("second")).toBeNull();
+    expect((await getLink("local"))?.serverUrl).toBe("https://a");
+  });
+
+  it("stores connection options without touching the type switches", async () => {
+    await createLink({
+      userId: "local",
+      serverUrl: "https://a",
+      sessionToken: "a",
+    });
+    await updateLink({ disabledTypes: ["hosts"] }, "local");
+    await updateLink({ options: { clientCertificate: "work" } }, "local");
+    const link = await getLink("local");
+    expect(link?.options).toEqual({ clientCertificate: "work" });
+    expect(link?.disabledTypes).toEqual(["hosts"]);
+  });
+});