CREDENTIAL TYPE MANAGEMENT WORKS

src/modules/credentials/fieldValidator.ts

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+import { Collection } from "@discordjs/collection";
+import { CredentialField, CredentialTypeField } from "./credentialTypeDefs";
+import GenericError from "../../Errors/GenericError";
+
+/**
+ * Field Validator
+ *
+ * This method will take a record of the fields being submitted and compare them against a record of the acceptable fields
+ * for a credential type.  If any of the submitted fields do not match an acceptable field, an error will be thrown.
+ *
+ * If all the credentials pass, it will return a processed version of the submitted fields including fields that need to be
+ * stored securely (encrypted) and fields that do not.
+ *
+ * @param fields - The fields in object form that are being submitted.
+ * @param acceptableFields - The acceptable field to be compared against.
+ */
+export const fieldValidator = async (
+  fields: CredentialField[],
+  acceptableFields: CredentialTypeField[],
+): Promise<
+  {
+    id: string;
+    fieldId: string;
+    value: string;
+    secure: boolean;
+  }[]
+> => {
+  const afCollection = new Collection(acceptableFields.map((f) => [f.id, f]));
+
+  await Promise.all(
+    fields.map(async (field) => {
+      const matchingField = afCollection.get(field.fieldId);
+      if (!matchingField) {
+        throw new GenericError({
+          message: `Invalid field ID: ${field.fieldId}`,
+          name: "InvalidCredentialField",
+          cause: `No acceptable field with ID '${field.fieldId}' found.`,
+          status: 400,
+        });
+      }
+
+      return;
+    }),
+  );
+
+  return fields.map((field) => {
+    const matchingField = afCollection.get(field.fieldId)!;
+
+    return {
+      id: field.id,
+      fieldId: field.fieldId,
+      value: field.value,
+      secure: matchingField.secure,
+    };
+  });
+};