Generate conversations displayed name

app/src/main/java/org/communiquons/android/comunic/client/data/UsersInfo/GetUsersHelper.java

@@ -101,7 +101,7 @@ public class GetUsersHelper {
             }
         }
 
-        //If we got there, an error occured
+        //If we got there, an error occurred
         Log.e(TAG, "Couldn't get information about a single user !");
         return null;
 

app/src/main/java/org/communiquons/android/comunic/client/data/conversations/ConversationsInfo.java

@@ -52,7 +52,7 @@ public class ConversationsInfo {
      *
      * @param ID_owner The ID of the owner of the conversation
      */
-    public void setID_owner(int ID_owner) {
+    void setID_owner(int ID_owner) {
         this.ID_owner = ID_owner;
     }
 
@@ -70,7 +70,7 @@ public class ConversationsInfo {
      *
      * @param last_active The timestamp of the last activity of the conversation
      */
-    public void setLast_active(int last_active) {
+    void setLast_active(int last_active) {
         this.last_active = last_active;
     }
 
@@ -112,7 +112,7 @@ public class ConversationsInfo {
      * @return True if the conversation has a name / false else
      */
     public boolean hasName(){
-        return name == null;
+        return name != null;
     }
 
     /**
@@ -122,7 +122,7 @@ public class ConversationsInfo {
      *
      * @param following True if the user is following the conversation
      */
-    public void setFollowing(boolean following) {
+    void setFollowing(boolean following) {
         this.following = following;
     }
 
@@ -140,7 +140,7 @@ public class ConversationsInfo {
      *
      * @param saw_last_message True if the user has seen the last message of the conversation
      */
-    public void setSaw_last_message(boolean saw_last_message) {
+    void setSaw_last_message(boolean saw_last_message) {
         this.saw_last_message = saw_last_message;
     }
 
@@ -167,7 +167,7 @@ public class ConversationsInfo {
      *
      * @param id The ID of the member to add
      */
-    public void addMember(Integer id){
+    void addMember(Integer id){
         if(members == null)
             members = new ArrayList<>();
 

app/src/main/java/org/communiquons/android/comunic/client/data/conversations/ConversationsListHelper.java

@@ -44,6 +44,7 @@ public class ConversationsListHelper {
      *
      * @return The list of conversations
      */
+    @Nullable
     public ArrayList<ConversationsInfo> download(){
 
         ArrayList<ConversationsInfo> list = new ArrayList<>();

app/src/main/java/org/communiquons/android/comunic/client/fragments/ConversationsListFragment.java

@@ -4,12 +4,17 @@ import android.app.Fragment;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.util.ArrayMap;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Toast;
 
 import org.communiquons.android.comunic.client.R;
+import org.communiquons.android.comunic.client.data.DatabaseHelper;
+import org.communiquons.android.comunic.client.data.UsersInfo.GetUsersHelper;
+import org.communiquons.android.comunic.client.data.UsersInfo.UserInfo;
 import org.communiquons.android.comunic.client.data.conversations.ConversationsInfo;
 import org.communiquons.android.comunic.client.data.conversations.ConversationsListHelper;
 
@@ -36,6 +41,11 @@ public class ConversationsListFragment extends Fragment {
      */
     private ArrayList<ConversationsInfo> convList;
 
+    /**
+     * User information helper
+     */
+    private GetUsersHelper userHelper;
+
     /**
      * The conversation list helper
      */
@@ -51,6 +61,12 @@ public class ConversationsListFragment extends Fragment {
     public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
+        //Database helper
+        DatabaseHelper dbHelper = new DatabaseHelper(getActivity());
+
+        //Instantiate the user informations helper
+        userHelper = new GetUsersHelper(getActivity(), dbHelper);
+
         //Create the conversation list helper
         conversationsListHelper = new ConversationsListHelper(getActivity());
 
@@ -60,13 +76,15 @@ public class ConversationsListFragment extends Fragment {
             protected ArrayList<ConversationsInfo> doInBackground(Void... params) {
 
                 //Get the list of conversations
-                return conversationsListHelper.download();
+                ArrayList<ConversationsInfo> list = conversationsListHelper.download();
+                process_conversations_list(list);
+                return list;
 
             }
 
             @Override
             protected void onPostExecute(ArrayList<ConversationsInfo> list) {
-                process_conversations_list(list);
+                display_conversations_list(list);
             }
         }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
 
@@ -82,14 +100,12 @@ public class ConversationsListFragment extends Fragment {
 
         //Check if got the list
         if(list == null){
-            Toast.makeText(getActivity(), R.string.fragment_conversationslist_err_get_list,
-                    Toast.LENGTH_LONG).show();
-            return;
+            return; //Nothing to be done
         }
 
         //Process the list of conversation
         ArrayList<Integer> usersToGet = new ArrayList<>();
-        ArrayList<ConversationsInfo> convToUpdate = new ArrayList<>();
+        ArrayList<ConversationsInfo> convToUpdateName = new ArrayList<>();
         for(ConversationsInfo conv : list){
 
             //Set the displayed names of the conversation
@@ -109,12 +125,71 @@ public class ConversationsListFragment extends Fragment {
 
                 }
 
-                convToUpdate.add(conv);
+                convToUpdateName.add(conv);
+            }
+        }
+
+        //Check if we have user to get information about
+        if(usersToGet.size() > 0){
+
+            //Get information about the users
+            ArrayMap<Integer, UserInfo> usersInfo = userHelper.getMultiple(usersToGet);
+
+            //Check for errors
+            if(usersInfo == null){
+                Log.e(TAG, "Couldn't get informations about some users !");
+                return;
+            }
+
+            //Process the conversation that have to be processed
+            for(ConversationsInfo conv : convToUpdateName){
+
+                //Get the name of the first members
+                String conversationName = "";
+                int count = 0;
+                for(int userID : conv.getMembers()){
+
+                    if(usersInfo.containsKey(userID)){
+
+                        UserInfo userInfo = usersInfo.get(userID);
+
+                        if(userInfo != null){
+                            conversationName += userInfo.getFullName() + ", ";
+                            count++;
                         }
 
                     }
 
+                    if(count == 2)
+                        break;
+                }
 
+                if(conv.getMembers().size() > 3)
+                    conversationName += "...";
 
+                //Update the displayed name of the conversation
+                conv.setDisplayName(conversationName);
+            }
+        }
+
+    }
+
+    /**
+     * Display the conversation list
+     *
+     * @param list The list to display
+     */
+    public void display_conversations_list(ArrayList<ConversationsInfo> list){
+
+        //Check if we got a list
+        if(list == null) {
+            Toast.makeText(getActivity(), R.string.fragment_conversationslist_err_get_list,
+                    Toast.LENGTH_LONG).show();
+            return;
+        }
+
+        for(ConversationsInfo info : list){
+            Log.v(TAG, "Conversation " + info.getID() + " : " + info.getDisplayName());
+        }
     }
 }