Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

* ID is supposed to be the database ID
* UID is the IMAP UID
* UUID is the globally unique identifier used in the front-end

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: GretaD <gretadoci@gmail.com>
Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

When looking for changed and vanished UIDs we typically have to send the
list of the known UIDs to the IMAP server to know what went missing
meanwhile. With the number of UIDs sent, the size of the IMAP command
grows. At some point the server will just refuse the command due to its
size.
To circumvent this scenario, this patch splits the sync process into
new, changed and vanished. New is cheap in terms of data sent, so it
stays untouched. Changed and vanished will now split the known UIDs list
into chunks and retrieve partial sync results that way.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

We need good training data to create a high quality classifier from the
user's data. If the data set does not contain enough important messages,
the ML would learn that few things are important and thus always develop
a bias towards non-important classification. To solve this we fall back
to a lower quality rule-based classifier that uses the same features as
the ML classifier. The importance is determined by hard-coded thresholds
of the individual features.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Holger Dehnhardt <holger@dehnhardt.org>
Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

This will allow using kitinerary-extractor when it's installed on the
system but invoking our binary and flatpak fail (due to platform
incompatibilities).

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: GretaD <gretadoci@gmail.com>
Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: GretaD <gretadoci@gmail.com>
Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

This is helpful to determine whether the initial sync just takes long or
got stuck.

Ref https://github.com/nextcloud/mail/issues/2976#issuecomment-618833115



Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

When we just had one implementation of a group service we could just
inject the implementation when the interface is used. However, as
another implementation was added, it is necessary to explicitly require
the implementations to be able to use all of them.

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

* Remove the heavy-weight virtual flagged mailbox
* Implement a favorites inbox as a simple filtered view
* Refactor the sync logic so it work with filtered mailboxes

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>