Update InviteButton to handle InviteResponse list

- Treat sendInvites() result as List<InviteResponse>
- Branch on InviteResponse.UserInvite vs EmailInvite
- Use isNullOrEmpty() to drive success/failure state transitions
- InviteResponseDeserializer added
- Retain loading > success/failure > content state flow with delays

Habitica/src/main/java/com/habitrpg/android/habitica/api/GSonFactoryCreator.java

@@ -15,6 +15,7 @@ import com.habitrpg.android.habitica.models.inventory.Equipment;
 import com.habitrpg.android.habitica.models.inventory.Quest;
 import com.habitrpg.android.habitica.models.inventory.QuestCollect;
 import com.habitrpg.android.habitica.models.inventory.QuestDropItem;
+import com.habitrpg.android.habitica.models.invitations.InviteResponse;
 import com.habitrpg.android.habitica.models.members.Member;
 import com.habitrpg.android.habitica.models.social.Challenge;
 import com.habitrpg.android.habitica.models.social.ChatMessage;
@@ -43,6 +44,7 @@ import com.habitrpg.android.habitica.utils.FAQArticleListDeserilializer;
 import com.habitrpg.android.habitica.utils.FeedResponseDeserializer;
 import com.habitrpg.android.habitica.utils.FindUsernameResultDeserializer;
 import com.habitrpg.android.habitica.utils.GroupSerialization;
+import com.habitrpg.android.habitica.utils.InviteResponseDeserializer;
 import com.habitrpg.android.habitica.utils.MemberSerialization;
 import com.habitrpg.android.habitica.utils.NotificationDeserializer;
 import com.habitrpg.android.habitica.utils.OwnedItemListDeserializer;
@@ -136,6 +138,7 @@ public class GSonFactoryCreator {
                 .registerTypeAdapter(assignedDetailsListType, new AssignedDetailsDeserializer())
                 .registerTypeAdapter(Quest.class, new QuestDeserializer())
                 .registerTypeAdapter(Member.class, new MemberSerialization())
+                .registerTypeAdapter(InviteResponse.class, new InviteResponseDeserializer())
                 .registerTypeAdapter(WorldState.class, new WorldStateSerialization())
                 .registerTypeAdapter(FindUsernameResult.class, new FindUsernameResultDeserializer())
                 .registerTypeAdapter(Notification.class, new NotificationDeserializer())

Habitica/src/main/java/com/habitrpg/android/habitica/models/invitations/InviteResponse.kt

@@ -1,3 +1,13 @@
 package com.habitrpg.android.habitica.models.invitations
 
-class InviteResponse
+sealed class InviteResponse {
+    data class UserInvite(
+        val id: String,
+        val name: String,
+        val inviter: String
+    ) : InviteResponse()
+
+    data class EmailInvite(
+        val email: String
+    ) : InviteResponse()
+}

Habitica/src/main/java/com/habitrpg/android/habitica/ui/fragments/social/party/PartyInviteFragment.kt

@@ -1,6 +1,7 @@
 package com.habitrpg.android.habitica.ui.fragments.social.party
 
 import android.os.Bundle
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -72,6 +73,7 @@ import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.delay
 import java.util.UUID
 import javax.inject.Inject
+import kotlin.time.Duration.Companion.seconds
 import kotlin.time.DurationUnit
 import kotlin.time.toDuration
 
@@ -279,14 +281,25 @@ fun PartyInviteView(
                             inviteButtonState = LoadingButtonState.CONTENT
                         }
                     }) {
-                        val responses = viewModel.sendInvites()
+                        val responses: List<InviteResponse>? = viewModel.sendInvites()
-                        if ((responses?.size ?: 0) > 0) {
+                        if (!responses.isNullOrEmpty()) {
                             inviteButtonState = LoadingButtonState.SUCCESS
-                            delay(2.toDuration(DurationUnit.SECONDS))
+                            // we are not differentiating between user and email invites here, however in the event we do - we can handle it
+                            responses.forEach { resp ->
+                                when (resp) {
+                                    is InviteResponse.UserInvite -> {
+                                        // UserInvite is a UUID
+                                    }
+                                    is InviteResponse.EmailInvite -> {
+                                        // EmailInvite is an email address
+                                    }
+                                }
+                            }
+                            delay(2.seconds)
                             dismiss()
                         } else {
                             inviteButtonState = LoadingButtonState.FAILED
-                            delay(2.toDuration(DurationUnit.SECONDS))
+                            delay(2.seconds)
                             inviteButtonState = LoadingButtonState.CONTENT
                         }
                     }

Habitica/src/main/java/com/habitrpg/android/habitica/utils/InviteResponseDeserializer.kt

@@ -0,0 +1,32 @@
+package com.habitrpg.android.habitica.utils
+
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonElement
+import com.google.gson.JsonParseException
+import com.habitrpg.android.habitica.models.invitations.InviteResponse
+import io.realm.RealmList
+import java.lang.reflect.Type
+
+class InviteResponseDeserializer : JsonDeserializer<InviteResponse> {
+    override fun deserialize(
+        json: JsonElement,
+        typeOfT: Type,
+        context: JsonDeserializationContext
+    ): InviteResponse {
+        return when {
+            json.isJsonPrimitive && json.asJsonPrimitive.isString -> {
+                InviteResponse.EmailInvite(json.asString)
+            }
+            json.isJsonObject -> {
+                val obj = json.asJsonObject
+                InviteResponse.UserInvite(
+                    id      = obj["id"].asString,
+                    name    = obj["name"].asString,
+                    inviter = obj["inviter"].asString
+                )
+            }
+            else -> throw JsonParseException("Unexpected InviteResponse: $json")
+        }
+    }
+}