feat: connectionless credential offer

edge-agent-sdk/src/commonMain/kotlin/org/hyperledger/identus/walletsdk/edgeagent/models/ConnectionlessMessageData.kt

@@ -0,0 +1,11 @@
+package org.hyperledger.identus.walletsdk.edgeagent.models
+
+import org.hyperledger.identus.walletsdk.domain.models.AttachmentDescriptor
+
+data class ConnectionlessMessageData(
+    val messageId: String,
+    val messageBody: String,
+    val attachmentDescriptor: AttachmentDescriptor,
+    val messageThid: String,
+    val messageFrom: String
+)

edge-agent-sdk/src/commonMain/kotlin/org/hyperledger/identus/walletsdk/edgeagent/protocols/issueCredential/CredentialPreview.kt

@@ -106,6 +106,6 @@ constructor(
         val name: String,
         val value: String,
         @SerialName("media_type")
-        val mediaType: String?
+        val mediaType: String? = null
     )
 }

edge-agent-sdk/src/commonMain/kotlin/org/hyperledger/identus/walletsdk/edgeagent/protocols/outOfBand/ConnectionlessCredentialOffer.kt

@@ -0,0 +1,13 @@
+package org.hyperledger.identus.walletsdk.edgeagent.protocols.outOfBand
+
+import kotlinx.serialization.Serializable
+import org.hyperledger.identus.walletsdk.edgeagent.protocols.issueCredential.OfferCredential
+import java.util.*
+
+/**
+ * Represents a connectionless credential offer.
+ */
+@Serializable
+data class ConnectionlessCredentialOffer(
+    val offerCredential: OfferCredential
+) : InvitationType()

edge-agent-sdk/src/commonMain/kotlin/org/hyperledger/identus/walletsdk/edgeagent/protocols/outOfBand/ConnectionlessRequestPresentation.kt

@@ -0,0 +1,9 @@
+package org.hyperledger.identus.walletsdk.edgeagent.protocols.outOfBand
+
+import kotlinx.serialization.Serializable
+import org.hyperledger.identus.walletsdk.edgeagent.protocols.proofOfPresentation.RequestPresentation
+
+@Serializable
+data class ConnectionlessRequestPresentation(
+    val requestPresentation: RequestPresentation
+) : InvitationType()

edge-agent-sdk/src/commonMain/kotlin/org/hyperledger/identus/walletsdk/edgeagent/protocols/pickup/PickupRunner.kt

@@ -24,7 +24,8 @@ class PickupRunner(message: Message, private val mercury: Mercury) {
      */
     enum class PickupResponseType(val type: String) {
         STATUS("status"),
-        DELIVERY("delivery")
+        DELIVERY("delivery"),
+        PROBLEM_REPORT("problem_report")
     }
 
     /**
@@ -60,6 +61,10 @@ class PickupRunner(message: Message, private val mercury: Mercury) {
                 this.message = PickupResponse(PickupResponseType.DELIVERY, message)
             }
 
+            ProtocolType.ProblemReport.value -> {
+                this.message = PickupResponse(PickupResponseType.PROBLEM_REPORT, message)
+            }
+
             else -> {
                 throw EdgeAgentError.InvalidMessageType(
                     type = message.piuri,

sampleapp/src/main/java/org/hyperledger/identus/walletsdk/sampleapp/ui/contacts/ContactsViewModel.kt

@@ -8,6 +8,9 @@ import androidx.lifecycle.viewModelScope
 import kotlinx.coroutines.launch
 import org.hyperledger.identus.walletsdk.domain.models.DIDPair
 import org.hyperledger.identus.walletsdk.edgeagent.EdgeAgentError
+import org.hyperledger.identus.walletsdk.edgeagent.protocols.issueCredential.OfferCredential
+import org.hyperledger.identus.walletsdk.edgeagent.protocols.outOfBand.ConnectionlessCredentialOffer
+import org.hyperledger.identus.walletsdk.edgeagent.protocols.outOfBand.ConnectionlessRequestPresentation
 import org.hyperledger.identus.walletsdk.edgeagent.protocols.outOfBand.OutOfBandInvitation
 import org.hyperledger.identus.walletsdk.edgeagent.protocols.outOfBand.PrismOnboardingInvitation
 import org.hyperledger.identus.walletsdk.sampleapp.Sdk
@@ -46,6 +49,21 @@ class ContactsViewModel(application: Application) : AndroidViewModel(application
                             agent.acceptInvitation(invitation)
                         }
 
+                        is ConnectionlessCredentialOffer -> {
+                            val offer = OfferCredential.fromMessage(invitation.offerCredential.makeMessage())
+                            val subjectDID = agent.createNewPrismDID()
+                            val request =
+                                agent.prepareRequestCredentialWithIssuer(
+                                    subjectDID,
+                                    offer
+                                )
+                            agent.sendMessage(request.makeMessage())
+                        }
+
+                        is ConnectionlessRequestPresentation -> {
+                            agent.pluto.storeMessage(invitation.requestPresentation.makeMessage())
+                        }
+
                         else -> {
                             throw EdgeAgentError.UnknownInvitationTypeError(invitation.toString())
                         }