landing page added

src/shared/request/plagiarismapi.ts

@@ -0,0 +1,41 @@
+// ─── Constants ───────────────────────────────────────────────────────────────
+
+import {
+  PlagiarismSubmissionPayload,
+  PlagiarismSubmissionResponse,
+} from '@/widgets/fileUpload/lib/types';
+
+const API_BASE_URL = process.env.VITE_API_BASE_URL ?? '/api';
+const ENDPOINT = `${API_BASE_URL}/plagiarism/submit`;
+
+// ─── API Function ────────────────────────────────────────────────────────────
+
+/**
+ * Submits a document for plagiarism checking.
+ * Sends a multipart/form-data request to the backend API.
+ */
+export async function submitPlagiarismCheck(
+  payload: PlagiarismSubmissionPayload,
+): Promise<PlagiarismSubmissionResponse> {
+  const formData = new FormData();
+  formData.append('topic', payload.topic);
+  formData.append('senderFullName', payload.senderFullName);
+  formData.append('file', payload.file);
+  formData.append('withCertificate', String(payload.withCertificate));
+
+  const response = await fetch(ENDPOINT, {
+    method: 'POST',
+    body: formData,
+    // Do NOT set Content-Type manually — the browser sets it with the boundary
+  });
+
+  if (!response.ok) {
+    const errorBody = await response.json().catch(() => ({}));
+    throw new Error(
+      (errorBody as { message?: string }).message ??
+        `Request failed with status ${response.status}`,
+    );
+  }
+
+  return response.json() as Promise<PlagiarismSubmissionResponse>;
+}