show a 'give' button directly on offers in the ProjectView

src/libs/util.ts

@@ -7,6 +7,7 @@ import { accountsDB, db } from "@/db/index";
 import { MASTER_SETTINGS_KEY } from "@/db/tables/settings";
 import { deriveAddress, generateSeed, newIdentifier } from "@/libs/crypto";
 import { GenericServerRecord, containsHiddenDid } from "@/libs/endorserServer";
+import * as serverUtil from "@/libs/endorserServer";
 
 // eslint-disable-next-line @typescript-eslint/no-var-requires
 const Buffer = require("buffer/").Buffer;
@@ -20,23 +21,54 @@ export const isGlobalUri = (uri: string) => {
 export const ONBOARD_MESSAGE =
   "1) Check that they have entered their name on the profile page in their device. 2) Add them to your Contacts by scanning with the QR icon that is by the input box. 3) Click the person icon to register them. 4) Have them go to their Contact page and scan your QR to add you to their list.";
 
-export const isConfirmable = (veriClaim: GenericServerRecord) => {
+export const giveIsConfirmable = (veriClaim: GenericServerRecord) => {
   return veriClaim.claimType === "GiveAction";
 };
 
-export const userCanConfirm = (
+/**
+ * @returns true if the user can confirm the claim
+ * @param veriClaim is expected to have fields: claim, claimType, and issuer
+ */
+export const giveRecordTheUserCanConfirm = (
   veriClaim: GenericServerRecord,
   activeDid: string,
   confirmerIdList: string[] = [],
 ) => {
   return (
-    isConfirmable(veriClaim) &&
+    giveIsConfirmable(veriClaim) &&
     !confirmerIdList.includes(activeDid) &&
     veriClaim.issuer !== activeDid &&
     !containsHiddenDid(veriClaim.claim)
   );
 };
 
+/**
+ * @returns the DID of the person who offered, or undefined if hidden
+ * @param veriClaim is expected to have fields: claim and issuer
+ */
+export const offerGiverDid: (
+  arg0: GenericServerRecord,
+) => string | undefined = (veriClaim) => {
+  let giver;
+  if (
+    veriClaim.claim.offeredBy?.identifier &&
+    !serverUtil.isHiddenDid(veriClaim.claim.offeredBy.identifier as string)
+  ) {
+    giver = veriClaim.claim.offeredBy.identifier;
+  } else if (veriClaim.issuer && !serverUtil.isHiddenDid(veriClaim.issuer)) {
+    giver = veriClaim.issuer;
+  }
+  return giver;
+};
+
+/**
+ * @returns true if the user can fulfill the offer
+ * @param veriClaim is expected to have fields: claim, claimType, and issuer
+ */
+export const canFulfillOffer = (veriClaim: GenericServerRecord) => {
+  return !!(veriClaim.claimType === "Offer" && offerGiverDid(veriClaim));
+};
+
 /**
  * Generates a new identity, saves it to the database, and sets it as the active identity.
  * @return {Promise<string>} with the DID of the new identity