core, ui: public group profile wip (#6734)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/ChatModel.kt

@@ -2163,6 +2163,39 @@ data class PreparedGroup (
 @Serializable
 data class GroupRef(val groupId: Long, val localDisplayName: String)
 
+@Serializable(with = GroupTypeSerializer::class)
+sealed class GroupType {
+  @Serializable @SerialName("channel") object Channel: GroupType()
+  @Serializable @SerialName("unknown") data class Unknown(val type: String): GroupType()
+}
+
+object GroupTypeSerializer : KSerializer<GroupType> {
+  override val descriptor: SerialDescriptor =
+    PrimitiveSerialDescriptor("GroupType", PrimitiveKind.STRING)
+
+  override fun deserialize(decoder: Decoder): GroupType {
+    return when (val value = decoder.decodeString()) {
+      "channel" -> GroupType.Channel
+      else -> GroupType.Unknown(value)
+    }
+  }
+
+  override fun serialize(encoder: Encoder, value: GroupType) {
+    val stringValue = when (value) {
+      is GroupType.Channel -> "channel"
+      is GroupType.Unknown -> value.type
+    }
+    encoder.encodeString(stringValue)
+  }
+}
+
+@Serializable
+data class PublicGroupProfile(
+  val groupType: GroupType,
+  val groupLink: String,
+  val publicGroupId: String
+)
+
 @Serializable
 data class GroupProfile (
   override val displayName: String,
@@ -2170,7 +2203,7 @@ data class GroupProfile (
   override val shortDescr: String?,
   val description: String? = null,
   override val image: String? = null,
-  val groupLink: String? = null,
+  val publicGroup: PublicGroupProfile? = null,
   override val localAlias: String = "",
   val groupPreferences: GroupPreferences? = null,
   val memberAdmission: GroupMemberAdmission? = null

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/SimpleXAPI.kt

@@ -4548,7 +4548,7 @@ data class RelayConnectionResult(
 data class GroupShortLinkInfo(
   val direct: Boolean,
   val groupRelays: List<String>,
-  val sharedGroupId: String? = null
+  val publicGroupId: String? = null
 )
 
 @Serializable

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/GroupChatInfoView.kt

@@ -545,21 +545,22 @@ fun ModalData.GroupChatInfoLayout(
       }
 
       var anyTopSectionRowShow = false
+      val channelLink = groupInfo.groupProfile.publicGroup?.groupLink
       if (groupInfo.useRelays) {
         SectionView {
           if (groupInfo.isOwner && groupLink != null) {
             anyTopSectionRowShow = true
             ChannelLinkButton(manageGroupLink)
-          } else if (groupInfo.groupProfile.groupLink != null) {
+          } else if (channelLink != null) {
             anyTopSectionRowShow = true
-            ChannelLinkQRCodeSection(groupInfo.groupProfile.groupLink!!)
+            ChannelLinkQRCodeSection(channelLink)
           }
           if (groupInfo.isOwner || activeSortedMembers.any { it.memberRole >= GroupMemberRole.Owner }) {
             anyTopSectionRowShow = true
             ChannelMembersButton(chat.remoteHostId, groupInfo, showMemberInfo)
           }
         }
-        if (!groupInfo.isOwner && groupInfo.groupProfile.groupLink != null) {
+        if (!groupInfo.isOwner && channelLink != null) {
           SectionTextFooter(stringResource(MR.strings.you_can_share_channel_link_anybody_will_be_able_to_connect))
         }
       } else {