Add pagination for certificates table

backend/src/services/certificate/certificate-dal.ts

@@ -1,10 +1,34 @@
 import { TDbClient } from "@app/db";
 import { TableName } from "@app/db/schemas";
+import { DatabaseError } from "@app/lib/errors";
 import { ormify } from "@app/lib/knex";
 
 export type TCertificateDALFactory = ReturnType<typeof certificateDALFactory>;
 
 export const certificateDALFactory = (db: TDbClient) => {
   const certificateOrm = ormify(db, TableName.Certificate);
-  return certificateOrm;
+
+  const countCertificatesInProject = async (projectId: string) => {
+    try {
+      interface CountResult {
+        count: string;
+      }
+
+      const count = await db(TableName.Certificate)
+        .join(TableName.CertificateAuthority, `${TableName.Certificate}.caId`, `${TableName.CertificateAuthority}.id`)
+        .join(TableName.Project, `${TableName.CertificateAuthority}.projectId`, `${TableName.Project}.id`)
+        .where(`${TableName.Project}.id`, projectId)
+        .count("*")
+        .first();
+
+      return parseInt((count as unknown as CountResult).count || "0", 10);
+    } catch (error) {
+      throw new DatabaseError({ error, name: "Count all project certificates" });
+    }
+  };
+
+  return {
+    ...certificateOrm,
+    countCertificatesInProject
+  };
 };