Added account/identity last modified time

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

@@ -68,7 +68,7 @@ import javax.mail.internet.InternetAddress;
 // https://developer.android.com/topic/libraries/architecture/room.html
 
 @Database(
-        version = 262,
+        version = 263,
         entities = {
                 EntityIdentity.class,
                 EntityAccount.class,
@@ -2655,6 +2655,14 @@ public abstract class DB extends RoomDatabase {
                         logMigration(startVersion, endVersion);
                         db.execSQL("ALTER TABLE `folder` ADD COLUMN `subtype` TEXT");
                     }
+                }).addMigrations(new Migration(262, 263) {
+                    @Override
+                    public void migrate(@NonNull SupportSQLiteDatabase db) {
+                        logMigration(startVersion, endVersion);
+                        db.execSQL("ALTER TABLE `account` ADD COLUMN `last_modified` INTEGER");
+                        db.execSQL("ALTER TABLE `identity` ADD COLUMN `last_modified` INTEGER");
+                        createTriggers(db);
+                    }
                 }).addMigrations(new Migration(998, 999) {
                     @Override
                     public void migrate(@NonNull SupportSQLiteDatabase db) {

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

@@ -168,6 +168,7 @@ public class EntityAccount extends EntityOrder implements Serializable {
     public Boolean capability_idle;
     public Boolean capability_utf8;
     public Boolean capability_uidl;
+    public Long last_modified; // sync
 
     boolean isGmail() {
         return "imap.gmail.com".equalsIgnoreCase(host) ||

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

@@ -132,6 +132,7 @@ public class EntityIdentity {
     public String error;
     public Long last_connected;
     public Long max_size;
+    public Long last_modified; // sync
 
     String getProtocol() {
         return (encryption == EmailService.ENCRYPTION_SSL ? "smtps" : "smtp");

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

@@ -1288,6 +1288,8 @@ public class FragmentAccount extends FragmentBase {
                     account.warning = null;
                     account.error = null;
                     account.last_connected = last_connected;
+                    account.last_modified = new Date().getTime();
+                    // SET last_modified = strftime('%s') * 1000
 
                     if (account.primary)
                         db.account().resetPrimary();

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

@@ -69,6 +69,7 @@ import java.io.FileNotFoundException;
 import java.net.UnknownHostException;
 import java.security.cert.X509Certificate;
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
 import java.util.Objects;
 
@@ -1017,6 +1018,7 @@ public class FragmentIdentity extends FragmentBase {
                     identity.error = null;
                     identity.last_connected = last_connected;
                     identity.max_size = (user_max_size == null ? server_max_size : user_max_size);
+                    identity.last_modified = new Date().getTime();
 
                     if (identity.primary)
                         db.identity().resetPrimary(account);