Add a 'isCaseManager' function to user (#287)

Fix #222

src/backend/routers/user.test.ts

@@ -17,3 +17,48 @@ test("getMe (throws if missing auth)", async (t) => {
     await trpc.user.getMe.query();
   });
 });
+
+test("isCaseManager (user is case_manager)", async (t) => {
+  const { trpc, db, seed } = await getTestServer(t, {
+    authenticateAs: "case_manager",
+  });
+
+  // Assign a para to the case manager
+  await db
+    .insertInto("paras_assigned_to_case_manager")
+    .values({
+      case_manager_id: seed.case_manager.user_id,
+      para_id: seed.para.user_id,
+    })
+    .execute();
+
+  const isCaseManager = await trpc.user.isCaseManager.query();
+  t.true(isCaseManager);
+});
+
+test("isCaseManager (user is para)", async (t) => {
+  const { trpc, db, seed } = await getTestServer(t, {
+    authenticateAs: "para",
+  });
+
+  // A user is not a case manager by default i.e. when paras_assigned_to_case_manager is empty
+  const result = await db
+    .selectFrom("paras_assigned_to_case_manager")
+    .selectAll()
+    .execute();
+  t.assert(result.length === 0);
+  let isCaseManager = await trpc.user.isCaseManager.query();
+  t.false(isCaseManager);
+
+  // Assign a para to the case manager
+  await db
+    .insertInto("paras_assigned_to_case_manager")
+    .values({
+      case_manager_id: seed.case_manager.user_id,
+      para_id: seed.para.user_id,
+    })
+    .execute();
+
+  isCaseManager = await trpc.user.isCaseManager.query();
+  t.false(isCaseManager);
+});

src/backend/routers/user.ts

@@ -19,4 +19,19 @@ export const user = router({
 
     return user;
   }),
+
+  /**
+   * @returns Whether the current user is a case manager
+   */
+  isCaseManager: authenticatedProcedure.query(async (req) => {
+    const { userId } = req.ctx.auth;
+
+    const result = await req.ctx.db
+      .selectFrom("paras_assigned_to_case_manager")
+      .select("case_manager_id")
+      .where("case_manager_id", "=", userId)
+      .execute();
+
+    return result.length > 0;
+  }),
 });