Profile implementation

libsession/src/main/java/org/session/libsession/messaging/messages/visible/Profile.kt

@@ -1,16 +1,65 @@
 package org.session.libsession.messaging.messages.visible
 
+import com.google.protobuf.ByteString
+import org.session.libsignal.libsignal.logging.Log
 import org.session.libsignal.service.internal.push.SignalServiceProtos
 
 class Profile() : VisibleMessage<SignalServiceProtos.DataMessage?>() {
 
+    var displayName: String? = null
+    var profileKey: ByteArray? = null
+    var profilePictureURL: String? = null
+
     companion object {
+        const val TAG = "Profile"
+
         fun fromProto(proto: SignalServiceProtos.DataMessage): Profile? {
-            TODO("Not yet implemented")
+            val profileProto = proto.profile ?: return null
+            val displayName = profileProto.displayName ?: return null
+            val profileKey = proto.profileKey
+            val profilePictureURL = profileProto.profilePictureURL
+            profileKey?.let {
+                val profilePictureURL = profilePictureURL
+                profilePictureURL?.let {
+                    return Profile(displayName = displayName, profileKey = profileKey.toByteArray(), profilePictureURL = profilePictureURL)
+                }
+                return Profile(displayName)
+            }
+
         }
     }
 
+    //constructor
+    internal constructor(displayName: String, profileKey: ByteArray? = nil, profilePictureURL: String? = nil) : this() {
+        this.displayName = displayName
+        this.profileKey = profileKey
+        this.profilePictureURL = profilePictureURL
+    }
+
+    fun toProto(): SignalServiceProtos.DataMessage? {
+        return this.toProto("")
+    }
+
     override fun toProto(transaction: String): SignalServiceProtos.DataMessage? {
-        return null
+        val displayName = displayName
+        if (displayName == null) {
+            Log.w(TAG, "Couldn't construct link preview proto from: $this")
+            return null
+        }
+        val dataMessageProto = SignalServiceProtos.DataMessage.newBuilder()
+        val profileProto = SignalServiceProtos.LokiUserProfile.newBuilder()
+        profileProto.displayName = displayName
+        val profileKey = profileKey
+        profileKey?.let { dataMessageProto.profileKey = ByteString.copyFrom(profileKey) }
+        val profilePictureURL = profilePictureURL
+        profilePictureURL?.let { profileProto.profilePictureURL = profilePictureURL }
+        // Build
+        try {
+            dataMessageProto.profile = profileProto.build()
+            return dataMessageProto.build()
+        } catch (e: Exception) {
+            Log.w(TAG, "Couldn't construct profile proto from: $this")
+            return null
+        }
     }
 }