feat: added declined proof state and decline method for presentations

Signed-off-by: seajensen <[email protected]>

packages/core/src/modules/proofs/ProofState.ts

@@ -10,5 +10,6 @@ export enum ProofState {
   RequestReceived = 'request-received',
   PresentationSent = 'presentation-sent',
   PresentationReceived = 'presentation-received',
+  Declined = 'declined',
   Done = 'done',
 }

packages/core/src/modules/proofs/ProofsModule.ts

@@ -270,6 +270,17 @@ export class ProofsModule {
     }
   }
 
+  /**
+   * Declines a proof request as holder
+   * @param proofRecordId the id of the proof request to be declined
+   * @returns proof record that was declined
+   */
+  public async declineRequest(proofRecordId: string) {
+    const proofRecord = await this.proofService.getById(proofRecordId)
+    await this.proofService.declineRequest(proofRecord)
+    return proofRecord
+  }
+
   /**
    * Accept a presentation as prover (by sending a presentation acknowledgement message) to the connection
    * associated with the proof record.

packages/core/src/modules/proofs/__tests__/ProofState.test.ts

@@ -8,6 +8,7 @@ describe('ProofState', () => {
     expect(ProofState.RequestReceived).toBe('request-received')
     expect(ProofState.PresentationSent).toBe('presentation-sent')
     expect(ProofState.PresentationReceived).toBe('presentation-received')
+    expect(ProofState.Declined).toBe('declined')
     expect(ProofState.Done).toBe('done')
   })
 })

packages/core/src/modules/proofs/services/ProofService.ts

@@ -165,6 +165,18 @@ export class ProofService {
     return { message: proposalMessage, proofRecord }
   }
 
+  /**
+   * Decline a proof request
+   * @param proofRecord The proof request to be declined
+   */
+  public async declineRequest(proofRecord: ProofRecord): Promise<ProofRecord> {
+    proofRecord.assertState(ProofState.RequestReceived)
+
+    await this.updateState(proofRecord, ProofState.Declined)
+
+    return proofRecord
+  }
+
   /**
    * Process a received {@link ProposePresentationMessage}. This will not accept the presentation proposal
    * or send a presentation request. It will only create a new, or update the existing proof record with