feat(fullstack): Add middleware API to frontend, add dummy signature mode for middleware

legalconsenthub/composables/middleware/useMiddleware.ts

@@ -0,0 +1,38 @@
+import type {
+  VerifySignatureHashAlgorithmEnum,
+  VerifySignatureResponseDto,
+  SignPdfHashHashAlgorithmEnum
+} from '~/.api-client-middleware'
+import { useMiddlewareApi } from '~/composables/middleware/useMiddlewareApi'
+
+export function useMiddleware() {
+  const middlewareApi = useMiddlewareApi()
+
+  async function signPdfHash(document: Blob, certificateId: string, hashAlgorithm?: SignPdfHashHashAlgorithmEnum) {
+    try {
+      return middlewareApi.signPdfHash(document, certificateId, hashAlgorithm)
+    } catch (e: unknown) {
+      console.error('Failed signing PDF hash:', e)
+      return Promise.reject(e)
+    }
+  }
+
+  async function verifySignature(
+    document: Blob,
+    signature: string,
+    certificateId?: string,
+    hashAlgorithm?: VerifySignatureHashAlgorithmEnum
+  ): Promise<VerifySignatureResponseDto> {
+    try {
+      return await middlewareApi.verifySignature(document, signature, certificateId, hashAlgorithm)
+    } catch (e: unknown) {
+      console.error('Failed verifying signature:', e)
+      return Promise.reject(e)
+    }
+  }
+
+  return {
+    signPdfHash,
+    verifySignature
+  }
+}