Color Android member phone actions using live call presence

tools/chatgui-android/app/src/main/java/com/utun/chat/data/ChatRepository.kt

@@ -79,6 +79,7 @@ data class ChatMember(val nodeId: Long, val name: String, val online: Boolean =
                       val isModer: Boolean = false, val isStorage: Boolean = false,
                       val radioActive: Boolean = false,
                       val radioMuted: Boolean = false,
+                      val phoneStatusKnown: Boolean = false, val phoneBusy: Boolean = false,
                       val isVerified: Boolean = false, val isDeleted: Boolean = false,
                       val nodeType: Int = 0,
                       val rtt: Int = 0, val isSelf: Boolean = false,
@@ -216,6 +217,8 @@ fun MemberWire.toChatMember(previous: ChatMember = ChatMember(nodeId, name)): Ch
     isAdmin = (flags and 2) != 0, isSuper = (flags and 1) != 0,
     isModer = (flags and 4) != 0, isStorage = storage,
     isDeleted = (flags and 8) != 0, radioActive = (flags and 0x10) != 0, radioMuted = (flags and 0x20) != 0,
+    phoneStatusKnown = online != 0 && (flags and 0x40) != 0,
+    phoneBusy = online != 0 && (flags and 0xC0) == 0xC0,
     rtt = if (rtt == 0xFFFF) 0 else rtt, isSelf = isSelf,
     avatarServer = avatarServer, avatarFile = avatarFile, storageRole = storageRole
 )

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt

@@ -278,7 +278,11 @@ private fun MemberListItem(
                         PortableRadioIcon(label, tint = if (member.radioActive) Color(0xFF4CAF50) else LocalContentColor.current)
                     }
                     IconButton(onClick = onCall, enabled = member.online, modifier = actionModifier) {
-                        Icon(Icons.Filled.Call, stringResource(R.string.call))
+                        val status = if (!member.online || !member.phoneStatusKnown) R.string.phone_status_unknown
+                            else if (member.phoneBusy) R.string.phone_status_busy else R.string.phone_status_free
+                        Icon(Icons.Filled.Call, stringResource(R.string.call) + " · " + stringResource(status),
+                            tint = if (!member.online || !member.phoneStatusKnown) LocalContentColor.current
+                                else if (member.phoneBusy) Color(0xFFE53935) else Color(0xFF4CAF50))
                     }
                 }
             }

tools/chatgui-android/app/src/test/java/com/utun/chat/data/MemberAvatarTest.kt

@@ -6,6 +6,18 @@ import java.nio.ByteBuffer
 import java.nio.ByteOrder
 
 class MemberAvatarTest {
+    @Test fun phonePresenceRequiresAnOnlinePeerAndAnExplicitKnownFlag() {
+        for ((flags, known, busy) in listOf(Triple(0, false, false), Triple(0x40, true, false),
+            Triple(0xC0, true, true), Triple(0x80, false, false))) {
+            val bytes = ByteArray(MEMBER_WIRE_SIZE)
+            bytes[8] = 1; bytes[10] = flags.toByte()
+            val online = requireNotNull(parseMemberWire(bytes)).toChatMember()
+            assertEquals(known, online.phoneStatusKnown); assertEquals(busy, online.phoneBusy)
+            bytes[8] = 0
+            val offline = requireNotNull(parseMemberWire(bytes)).toChatMember(online)
+            assertFalse(offline.phoneStatusKnown); assertFalse(offline.phoneBusy)
+        }
+    }
     @Test fun snapshotStringsStopAtFirstNullBeforeDirtyPadding() {
         for (name in listOf("", "0x06B9", "Без имени", "x".repeat(63))) {
             val bytes = ByteArray(MEMBER_WIRE_SIZE)