Added account warning when no drafts folder

app/src/main/java/eu/faircode/email/AdapterAccount.java

@@ -70,6 +70,7 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
         private ImageView ivState;
         private TextView tvHost;
         private TextView tvLast;
+        private TextView tvDrafts;
         private TextView tvWarning;
         private TextView tvError;
         private Group grpSettings;
@@ -87,6 +88,7 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
             ivState = itemView.findViewById(R.id.ivState);
             tvHost = itemView.findViewById(R.id.tvHost);
             tvLast = itemView.findViewById(R.id.tvLast);
+            tvDrafts = itemView.findViewById(R.id.tvDrafts);
             tvWarning = itemView.findViewById(R.id.tvWarning);
             tvError = itemView.findViewById(R.id.tvError);
             grpSettings = itemView.findViewById(R.id.grpSettings);
@@ -137,6 +139,8 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
             tvLast.setText(context.getString(R.string.title_last_connected,
                     account.last_connected == null ? "-" : df.format(account.last_connected)));
 
+            tvDrafts.setVisibility(account.drafts || !settings ? View.GONE : View.VISIBLE);
+
             tvWarning.setText(account.warning);
             tvWarning.setVisibility(account.warning == null || !settings ? View.GONE : View.VISIBLE);
 

app/src/main/java/eu/faircode/email/DaoAccount.java

@@ -59,8 +59,10 @@ public interface DaoAccount {
             "    AND folder.type = '" + EntityFolder.OUTBOX + "'" +
             "    AND NOT ui_seen" +
             "    AND NOT ui_hide) AS unsent" +
+            ", CASE WHEN drafts.id IS NULL THEN 0 ELSE 1 END AS drafts" +
             " FROM account" +
             " LEFT JOIN operation ON operation.account = account.id" +
+            " LEFT JOIN folder AS drafts ON drafts.account = account.id AND drafts.type = '" + EntityFolder.DRAFTS + "'" +
             " WHERE :all OR account.synchronize" +
             " GROUP BY account.id")
     LiveData<List<TupleAccountEx>> liveAccountsEx(boolean all);

app/src/main/java/eu/faircode/email/TupleAccountEx.java

@@ -23,12 +23,14 @@ public class TupleAccountEx extends EntityAccount {
     public int unseen;
     public int unsent;
     public int operations;
+    public boolean drafts;
 
     public boolean uiEquals(Object obj) {
         if (obj instanceof TupleAccountEx) {
             TupleAccountEx other = (TupleAccountEx) obj;
             return (super.equals(obj) &&
-                    this.unseen == other.unseen);
+                    this.unseen == other.unseen &&
+                    this.drafts == other.drafts);
         } else
             return false;
     }
@@ -40,7 +42,8 @@ public class TupleAccountEx extends EntityAccount {
             return (super.equals(obj) &&
                     this.unseen == other.unseen &&
                     this.unsent == other.unsent &&
-                    this.operations == other.operations);
+                    this.operations == other.operations &&
+                    this.drafts == other.drafts);
         } else
             return false;
     }

app/src/main/res/layout/item_account.xml

@@ -126,6 +126,20 @@
             app:layout_constraintStart_toEndOf="@+id/ivState"
             app:layout_constraintTop_toBottomOf="@id/tvHost" />
 
+        <TextView
+            android:id="@+id/tvDrafts"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="6dp"
+            android:layout_marginEnd="6dp"
+            android:text="@string/title_drafts_required"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textColor="?attr/colorWarning"
+            android:textIsSelectable="true"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@id/vwColor"
+            app:layout_constraintTop_toBottomOf="@id/tvLast" />
+
         <TextView
             android:id="@+id/tvWarning"
             android:layout_width="0dp"
@@ -138,7 +152,7 @@
             android:textIsSelectable="true"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toEndOf="@id/vwColor"
-            app:layout_constraintTop_toBottomOf="@id/tvLast" />
+            app:layout_constraintTop_toBottomOf="@id/tvDrafts" />
 
         <TextView
             android:id="@+id/tvError"