🔧 chore: create oauth endpoint req to backend

shared/widgets/signin/actions/getOauthEndpoint.ts

@@ -1,6 +1,20 @@
-"use client";
+"use server";
 import { backendFetch, BackendResponse } from "@/shared/helper/backendFetch";
 
-export const getOauthEndpoint = async (url: string) => {
-  return (await backendFetch(url)) as BackendResponse<{ endpointUrl: string }>;
+interface GetOauthEndpointParams {
+  endpointUrl: string;
+  providerName: string;
+}
+
+export const getOauthEndpoint = async ({
+  endpointUrl,
+  providerName,
+}: GetOauthEndpointParams) => {
+  const envKey = providerName.toUpperCase() + "_CALLBACK_URL";
+
+  return (await backendFetch(
+    `${endpointUrl}?callback=${process.env.APP_URL}${process.env[envKey]}`
+  )) as BackendResponse<{
+    endpointUrl: string;
+  }>;
 };