feat: saml sso ui integration (#8094)

ui/app/api/auth/callback/saml/route.ts

@@ -0,0 +1,55 @@
+"use server";
+
+import { NextResponse } from "next/server";
+
+import { signIn } from "@/auth.config";
+import { apiBaseUrl, baseUrl } from "@/lib/helper";
+
+export async function GET(req: Request) {
+  const { searchParams } = new URL(req.url);
+  const id = searchParams.get("id");
+
+  if (!id) {
+    return NextResponse.json(
+      { error: "ID parameter is missing" },
+      { status: 400 },
+    );
+  }
+
+  try {
+    const response = await fetch(`${apiBaseUrl}/tokens/saml?id=${id}`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/vnd.api+json",
+        Accept: "application/vnd.api+json",
+      },
+    });
+
+    if (!response.ok) {
+      throw new Error(`Failed to fetch tokens: ${response.statusText}`);
+    }
+
+    const tokenData = await response.json();
+    const { access, refresh } = tokenData.data;
+
+    if (!access || !refresh) {
+      throw new Error("Tokens not found in response");
+    }
+
+    const result = await signIn("social-oauth", {
+      accessToken: access,
+      refreshToken: refresh,
+      redirect: false,
+      callbackUrl: `${baseUrl}/`,
+    });
+
+    if (result?.error) {
+      throw new Error(result.error);
+    }
+
+    return NextResponse.redirect(new URL("/", baseUrl));
+  } catch (error) {
+    console.error("SAML authentication failed:", error);
+    return NextResponse.redirect(new URL("/sign-in", baseUrl));
+  }
+}