Add nonce graphql helpers

graphql/nonce.ts

@@ -0,0 +1,80 @@
+import { gql } from "graphql-request";
+import { z } from "zod";
+import { gqlClient } from ".";
+
+const DbNonceObjNonce = z.object({ nonce: z.number() });
+type DbNonceObjNonce = Readonly<z.infer<typeof DbNonceObjNonce>>;
+
+export const getNonce = async (chainId: string, address: string) => {
+  type QueryResponse = { readonly queryNonce: readonly DbNonceObjNonce[] };
+  type QueryVariables = { readonly chainId: string; readonly address: string };
+
+  const { queryNonce } = await gqlClient.request<QueryResponse, QueryVariables>(
+    gql`
+      query GetNonce($chainId: String!, $address: String!) {
+        queryNonce(filter: { chainId: { eq: $chainId }, address: { eq: $address } }) {
+          nonce
+        }
+      }
+    `,
+    { chainId, address },
+  );
+
+  const dbNonceObj = queryNonce.length ? queryNonce[0] : null;
+
+  if (dbNonceObj) {
+    DbNonceObjNonce.parse(dbNonceObj);
+    return dbNonceObj.nonce;
+  }
+
+  type AddResponse = { readonly addNonce: { readonly nonce: readonly DbNonceObjNonce[] } };
+  type AddVariables = { readonly chainId: string; readonly address: string };
+
+  const { addNonce } = await gqlClient.request<AddResponse, AddVariables>(
+    gql`
+      mutation CreateNonce($chainId: String!, $address: String!) {
+        addNonce(input: { chainId: $chainId, address: $address, nonce: 1 }) {
+          nonce {
+            nonce
+          }
+        }
+      }
+    `,
+    { chainId, address },
+  );
+
+  const createdNonceObj = addNonce.nonce[0];
+  DbNonceObjNonce.parse(createdNonceObj);
+
+  return createdNonceObj.nonce;
+};
+
+export const incrementNonce = async (chainId: string, address: string) => {
+  const dbNonce = await getNonce(chainId, address);
+
+  type Response = { readonly updateNonce: { readonly nonce: readonly DbNonceObjNonce[] } };
+  type Variables = { readonly chainId: string; readonly address: string; readonly nonce: number };
+
+  const { updateNonce } = await gqlClient.request<Response, Variables>(
+    gql`
+      mutation IncrementNonce($chainId: String!, $address: String!, $nonce: Int!) {
+        updateNonce(
+          input: {
+            filter: { chainId: { eq: $chainId }, address: { eq: $address } }
+            set: { nonce: $nonce }
+          }
+        ) {
+          nonce {
+            nonce
+          }
+        }
+      }
+    `,
+    { chainId, address, nonce: dbNonce + 1 },
+  );
+
+  const updatedNonceObj = updateNonce.nonce[0];
+  DbNonceObjNonce.parse(updatedNonceObj);
+
+  return updatedNonceObj.nonce;
+};