Use account id as group id

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

@@ -844,11 +844,12 @@ public class ActivitySetup extends ActivityBilling implements FragmentManager.On
                             account.deleteNotificationChannel(context);
                             if (account.notify)
                                 if (jaccount.has("channel")) {
-                                    NotificationChannelGroup group = new NotificationChannelGroup(account.name, account.name);
+                                    NotificationChannelGroup group = new NotificationChannelGroup("group." + account.id, account.name);
                                     nm.createNotificationChannelGroup(group);
 
                                     JSONObject jchannel = (JSONObject) jaccount.get("channel");
                                     jchannel.put("id", EntityAccount.getNotificationChannelId(account.id));
+                                    jchannel.put("group", group.getId());
                                     nm.createNotificationChannel(channelFromJSON(context, jchannel));
 
                                     Log.i("Imported account channel=" + jchannel);
@@ -892,11 +893,12 @@ public class ActivitySetup extends ActivityBilling implements FragmentManager.On
 
                             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                                 if (jfolder.has("channel")) {
-                                    NotificationChannelGroup group = new NotificationChannelGroup(account.name, account.name);
+                                    NotificationChannelGroup group = new NotificationChannelGroup("group." + account.id, account.name);
                                     nm.createNotificationChannelGroup(group);
 
                                     JSONObject jchannel = (JSONObject) jfolder.get("channel");
                                     jchannel.put("id", EntityFolder.getNotificationChannelId(folder.id));
+                                    jchannel.put("group", group.getId());
                                     nm.createNotificationChannel(channelFromJSON(context, jchannel));
 
                                     Log.i("Imported folder channel=" + jchannel);

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

@@ -32,7 +32,7 @@ public interface DaoFolder {
     List<EntityFolder> getFolders(long account);
 
     @Query("SELECT folder.*" +
-            ", account.`order` AS accountOrder, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
+            ", account.id AS accountId, account.`order` AS accountOrder, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
             ", COUNT(message.id) AS messages" +
             ", SUM(CASE WHEN message.content = 1 THEN 1 ELSE 0 END) AS content" +
             ", SUM(CASE WHEN message.ui_seen = 0 THEN 1 ELSE 0 END) AS unseen" +
@@ -64,7 +64,7 @@ public interface DaoFolder {
     List<TupleFolderSort> getSortedFolders();
 
     @Query("SELECT folder.*" +
-            ", account.`order` AS accountOrder, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
+            ", account.id AS accountId, account.`order` AS accountOrder, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
             ", COUNT(message.id) AS messages" +
             ", SUM(CASE WHEN message.content = 1 THEN 1 ELSE 0 END) AS content" +
             ", SUM(CASE WHEN message.ui_seen = 0 THEN 1 ELSE 0 END) AS unseen" +
@@ -80,7 +80,7 @@ public interface DaoFolder {
     LiveData<List<TupleFolderEx>> liveFolders(Long account);
 
     @Query("SELECT folder.*" +
-            ", account.`order` AS accountOrder, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
+            ", account.id AS accountId, account.`order` AS accountOrder, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
             ", COUNT(message.id) AS messages" +
             ", SUM(CASE WHEN message.content = 1 THEN 1 ELSE 0 END) AS content" +
             ", SUM(CASE WHEN message.ui_seen = 0 THEN 1 ELSE 0 END) AS unseen" +
@@ -119,7 +119,7 @@ public interface DaoFolder {
     LiveData<Integer> liveSynchronizing();
 
     @Query("SELECT folder.*" +
-            ", account.`order` AS accountOrder, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
+            ", account.id AS accountId, account.`order` AS accountOrder, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
             ", COUNT(message.id) AS messages" +
             ", SUM(CASE WHEN message.content = 1 THEN 1 ELSE 0 END) AS content" +
             ", SUM(CASE WHEN message.ui_seen = 0 THEN 1 ELSE 0 END) AS unseen" +

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

@@ -110,13 +110,13 @@ public class EntityAccount extends EntityOrder implements Serializable {
     void createNotificationChannel(Context context) {
         NotificationManager nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
 
-        NotificationChannelGroup group = new NotificationChannelGroup(name, name);
+        NotificationChannelGroup group = new NotificationChannelGroup("group." + id, name);
         nm.createNotificationChannelGroup(group);
 
         NotificationChannel channel = new NotificationChannel(
                 getNotificationChannelId(id), name,
                 NotificationManager.IMPORTANCE_HIGH);
-        channel.setGroup(name);
+        channel.setGroup(group.getId());
         channel.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
         channel.enableLights(true);
         nm.createNotificationChannel(channel);

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

@@ -37,6 +37,7 @@ import java.util.Locale;
 import java.util.Objects;
 
 public class TupleFolderEx extends EntityFolder implements Serializable {
+    public Long accountId;
     public Integer accountOrder;
     public String accountName;
     public Integer accountColor;
@@ -63,6 +64,7 @@ public class TupleFolderEx extends EntityFolder implements Serializable {
         if (obj instanceof TupleFolderEx) {
             TupleFolderEx other = (TupleFolderEx) obj;
             return (super.equals(obj) &&
+                    Objects.equals(this.accountId, other.accountId) &&
                     Objects.equals(this.accountName, other.accountName) &&
                     Objects.equals(this.accountColor, other.accountColor) &&
                     Objects.equals(this.accountState, other.accountState) &&
@@ -78,13 +80,13 @@ public class TupleFolderEx extends EntityFolder implements Serializable {
     void createNotificationChannel(Context context) {
         NotificationManager nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
 
-        NotificationChannelGroup group = new NotificationChannelGroup(accountName, accountName);
+        NotificationChannelGroup group = new NotificationChannelGroup("group." + accountId, accountName);
         nm.createNotificationChannelGroup(group);
 
         NotificationChannel channel = new NotificationChannel(
                 getNotificationChannelId(id), getDisplayName(context),
                 NotificationManager.IMPORTANCE_HIGH);
-        channel.setGroup(accountName);
+        channel.setGroup(group.getId());
         channel.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
         channel.enableLights(true);
         nm.createNotificationChannel(channel);