feat: implement complex user invitation handler with tests and configuration

apps/backend/src/modules/complex/handlers/invite-complex-user.handler.ts

@@ -10,24 +10,38 @@ const complexParamsSchema = z.object({
   id: z.uuid(),
 });
 
-export async function inviteComplexUserHandler(c: AppContext) {
-  const user = c.get('user');
-  const params = complexParamsSchema.parse(c.req.param());
-  const payload = c.req.valid('json' as never) as InviteComplexUserInput;
+type InviteComplexUserHandlerDeps = {
+  inviteComplexUser: typeof inviteComplexUser;
+  ComplexMembersError: typeof ComplexMembersError;
+};
 
-  try {
-    const result = await inviteComplexUser(user.id, params.id, payload);
-    return c.json(result, 201);
-  } catch (error) {
-    if (error instanceof ComplexMembersError) {
-      return c.json(
-        { message: error.message },
-        {
-          status: error.status,
-        }
-      );
-    }
-
-    throw error;
+export function createInviteComplexUserHandler(
+  deps: InviteComplexUserHandlerDeps = {
+    inviteComplexUser,
+    ComplexMembersError,
   }
+) {
+  return async function inviteComplexUserHandler(c: AppContext) {
+    const user = c.get('user');
+    const params = complexParamsSchema.parse(c.req.param());
+    const payload = c.req.valid('json' as never) as InviteComplexUserInput;
+
+    try {
+      const result = await deps.inviteComplexUser(user.id, params.id, payload);
+      return c.json(result, 201);
+    } catch (error) {
+      if (error instanceof deps.ComplexMembersError) {
+        return c.json(
+          { message: error.message },
+          {
+            status: error.status,
+          }
+        );
+      }
+
+      throw error;
+    }
+  };
 }
+
+export const inviteComplexUserHandler = createInviteComplexUserHandler();