Request to run commands if message starts with "/"

app/src/main/java/chat/rocket/android/chatroom/presentation/ChatRoomPresenter.kt

@@ -24,6 +24,7 @@ import chat.rocket.common.model.roomTypeOf
 import chat.rocket.common.util.ifNull
 import chat.rocket.core.internal.realtime.State
 import chat.rocket.core.internal.rest.*
+import chat.rocket.core.model.Command
 import chat.rocket.core.model.Message
 import chat.rocket.core.model.Value
 import kotlinx.coroutines.experimental.CommonPool
@@ -504,6 +505,35 @@ class ChatRoomPresenter @Inject constructor(private val view: ChatRoomView,
         }
     }
 
+    fun runCommand(text: String, roomId: String) {
+        launchUI(strategy) {
+            try {
+                if (text.length == 1) {
+                    // we have just the slash, post it anyway
+                    sendMessage(roomId, text, null)
+                } else {
+                    val command = text.split(" ")
+                    val name = command[0].substring(1)
+                    var params: String = ""
+                    command.forEachIndexed { index, param ->
+                        if (index > 0) {
+                            params += "$param "
+                        }
+                    }
+                    val result = client.runCommand(Command(name, params), roomId)
+                    if (!result) {
+                        // failed, command is not valid so post it
+                        sendMessage(roomId, text, null)
+                    }
+                }
+            } catch (ex: RocketChatException) {
+                Timber.e(ex)
+                // command is not valid, post it
+                sendMessage(roomId, text, null)
+            }
+        }
+    }
+
     private fun updateMessage(streamedMessage: Message) {
         launchUI(strategy) {
             val viewModelStreamedMessage = mapper.map(streamedMessage)

app/src/main/java/chat/rocket/android/chatroom/ui/ChatRoomFragment.kt

@@ -216,7 +216,11 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiR
 
     override fun sendMessage(text: String) {
         if (!text.isBlank()) {
-            presenter.sendMessage(chatRoomId, text, editingMessageId)
+            if (!text.startsWith("/")) {
+                presenter.sendMessage(chatRoomId, text, editingMessageId)
+            } else {
+                presenter.runCommand(text, chatRoomId)
+            }
         }
     }