Reduce transaction time

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

@@ -534,6 +534,9 @@ public class ServiceSend extends ServiceBase implements SharedPreferences.OnShar
             if (plain != null && plain)
                 body = body.replace("<div x-plain=\"true\">", "<div>");
 
+            String language = HtmlHelper.getLanguage(this, body);
+            String preview = HtmlHelper.getPreview(body);
+
             try {
                 db.beginTransaction();
 
@@ -557,9 +560,9 @@ public class ServiceSend extends ServiceBase implements SharedPreferences.OnShar
                 Helper.writeText(file, body);
                 db.message().setMessageContent(message.id,
                         true,
-                        HtmlHelper.getLanguage(this, body),
+                        language,
                         parts.isPlainOnly(),
-                        HtmlHelper.getPreview(body),
+                        preview,
                         parts.getWarnings(message.warning));
 
                 EntityAttachment.copy(this, id, message.id);

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

@@ -288,6 +288,9 @@ public class ServiceUI extends IntentService {
         if (body != null)
             body = "<p>" + body.replaceAll("\\r?\\n", "<br>") + "</p>";
 
+        String language = HtmlHelper.getLanguage(this, body);
+        String preview = HtmlHelper.getPreview(body);
+
         DB db = DB.getInstance(this);
         try {
             db.beginTransaction();
@@ -330,9 +333,9 @@ public class ServiceUI extends IntentService {
 
             db.message().setMessageContent(reply.id,
                     true,
-                    HtmlHelper.getLanguage(this, body),
+                    language,
                     plain_only || ref.plain_only,
-                    HtmlHelper.getPreview(body),
+                    preview,
                     null);
 
             EntityOperation.queue(this, reply, EntityOperation.SEND);