Refactoring

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

@@ -29,6 +29,7 @@ import android.text.TextUtils;
 
 import androidx.annotation.NonNull;
 import androidx.preference.PreferenceManager;
+import androidx.room.ColumnInfo;
 import androidx.room.Entity;
 import androidx.room.ForeignKey;
 import androidx.room.Index;
@@ -101,6 +102,9 @@ public class EntityMessage implements Serializable {
     static final Integer PRIORITIY_NORMAL = 1;
     static final Integer PRIORITIY_HIGH = 2;
 
+    static final Integer DSN_NONE = 0;
+    static final Integer DSN_RECEIPT = 1;
+
     static final Long SWIPE_ACTION_ASK = -1L;
     static final Long SWIPE_ACTION_SEEN = -2L;
     static final Long SWIPE_ACTION_SNOOZE = -3L;
@@ -132,7 +136,8 @@ public class EntityMessage implements Serializable {
     public Integer priority;
     public Integer importance;
     public Boolean auto_submitted;
-    public Boolean receipt; // is receipt
+    @ColumnInfo(name = "receipt")
+    public Integer dsn;
     public Boolean receipt_request;
     public Address[] receipt_to;
     public Boolean dkim;
@@ -481,7 +486,7 @@ public class EntityMessage implements Serializable {
                     Objects.equals(this.wasforwardedfrom, other.wasforwardedfrom) &&
                     Objects.equals(this.thread, other.thread) &&
                     Objects.equals(this.priority, other.priority) &&
-                    Objects.equals(this.receipt, other.receipt) &&
+                    Objects.equals(this.dsn, other.dsn) &&
                     Objects.equals(this.receipt_request, other.receipt_request) &&
                     MessageHelper.equal(this.receipt_to, other.receipt_to) &&
                     Objects.equals(this.dkim, other.dkim) &&

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

@@ -3668,7 +3668,7 @@ public class FragmentCompose extends FragmentBase {
                             if ("reply_all".equals(action))
                                 data.draft.cc = ref.getAllRecipients(data.identities, ref.account);
                             else if ("receipt".equals(action)) {
-                                data.draft.receipt = true;
+                                data.draft.dsn = EntityMessage.DSN_RECEIPT;
                                 data.draft.receipt_request = false;
                             }
 
@@ -5931,8 +5931,12 @@ public class FragmentCompose extends FragmentBase {
                     cbPlainOnly.setChecked(draft.plain_only != null && draft.plain_only);
                     cbReceipt.setChecked(draft.receipt_request != null && draft.receipt_request);
 
-                    cbPlainOnly.setVisibility(draft.receipt != null && draft.receipt ? View.GONE : View.VISIBLE);
-                    cbReceipt.setVisibility(draft.receipt != null && draft.receipt ? View.GONE : View.VISIBLE);
+                    cbPlainOnly.setVisibility(
+                            draft.dsn != null && !EntityMessage.DSN_NONE.equals(draft.dsn)
+                                    ? View.GONE : View.VISIBLE);
+                    cbReceipt.setVisibility(
+                            draft.dsn != null && !EntityMessage.DSN_NONE.equals(draft.dsn)
+                                    ? View.GONE : View.VISIBLE);
 
                     int encrypt = (draft.ui_encrypt == null ? EntityMessage.ENCRYPT_NONE : draft.ui_encrypt);
                     for (int i = 0; i < encryptValues.length; i++)
@@ -5941,7 +5945,9 @@ public class FragmentCompose extends FragmentBase {
                             spEncrypt.setSelection(i);
                             break;
                         }
-                    spEncrypt.setVisibility(draft.receipt != null && draft.receipt ? View.GONE : View.VISIBLE);
+                    spEncrypt.setVisibility(
+                            draft.dsn != null && !EntityMessage.DSN_NONE.equals(draft.dsn)
+                                    ? View.GONE : View.VISIBLE);
 
                     int priority = (draft.priority == null ? 1 : draft.priority);
                     spPriority.setTag(priority);

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

@@ -539,7 +539,7 @@ public class MessageHelper {
     }
 
     static void build(Context context, EntityMessage message, List<EntityAttachment> attachments, EntityIdentity identity, boolean send, MimeMessage imessage) throws IOException, MessagingException {
-        if (message.receipt != null && message.receipt) {
+        if (EntityMessage.DSN_RECEIPT.equals(message.dsn)) {
             // https://www.ietf.org/rfc/rfc3798.txt
             Multipart report = new MimeMultipart("report; report-type=disposition-notification");