feat: Summarize email thread

[hamza221]

To Test the setting should be enabled first in admin settings

closes #8508

[ChristophWurst]

Set to draft because we'll do the full MVP on this branch

[hamza221]

FYI before testing nextcloud/server#39658

[ChristophWurst]

Text processing APIs only exist with 27.1, 28 and later. This app supports older releases. So we need to find a way to hide this feature when the API is not there.

The AiIntegrationsService could inject ContainerInterface instead and then do something like

try {
   $manager = $this->container->get(IManager::class);
   $manager->magic();
} catch (ContainerError $e) {
   // hide feature
}

[ChristophWurst]

Not blocking but very nice to have: unit tests for all new classes

[hamza221]

Not blocking but very nice to have: unit tests for all new classes

I can create an issue and add them in a separate PR? so this gets released asap

[hamza221]

Any advice on how to make psalm happy for older versions?

[ChristophWurst]

Any advice on how to make psalm happy for older versions?

Extend https://github.com/nextcloud/mail/blob/main/tests/psalm-baseline.xml

Extend

mail/psalm.xml

Lines 22 to 41 in ab14bd6

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	<errorLevel type="suppress">
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	<referencedClass name="Doctrine\DBAL\Platforms\PostgreSQL94Platform" />
	<referencedClass name="Doctrine\DBAL\Platforms\SqlitePlatform" />
	<referencedClass name="Doctrine\DBAL\Types\Type" />
	<referencedClass name="Doctrine\DBAL\Types\Types" />
	<referencedClass name="IPLib\Factory" />
	<referencedClass name="IPLib\Address\IPv6" />
	<referencedClass name="OC" />
	<referencedClass name="OC\Security\CSP\ContentSecurityPolicyNonceManager" />
	<referencedClass name="Psr\Http\Client\ClientExceptionInterface" />
	<referencedClass name="Symfony\Component\HttpFoundation\IpUtils" />
	<referencedClass name="Symfony\Component\Console\Command\Command" />
	<referencedClass name="Symfony\Component\Console\Input\InputArgument" />
	<referencedClass name="Symfony\Component\Console\Input\InputInterface" />
	<referencedClass name="Symfony\Component\Console\Input\InputOption" />
	<referencedClass name="Symfony\Component\Console\Output\OutputInterface" />
	</errorLevel>
	</UndefinedClass>

[marcelklehr]

Calling this in a route is risky as it will likely exceed the PHP max execution time. Also, you might want to cache the output. :)

[st3iny]

Tested and works. However, there are some issues in the code.

[ChristophWurst]

Tested without any llm backend

Ideally we hide the whole feature when there is no text summarization support. That is hide the admin settings and the summary box above threads.

[ChristophWurst]

I found myself in a funny situation. I have thread summaries enabled since yesterday. But there is no UI to disable them.

Nextcloud users could run into this as well if they previously had an llm integration enabled but turned it off.

[ChristophWurst]

Requesting small changes one last time

Solid PR 👍 😎

[ChristophWurst]

nit: we can save one request at page load if this retrieval is moved into initial state

[ChristophWurst]

always set summaries to no if llm apis are not available

Addressed

[jakobroehrl]

To Test the setting should be enabled first in admin settings

closes #8508

@hamza221 I updated the Mail App to 3.4.0-beta.2 but I can't find the "enable thread setting" in my groupware settings.

Could you help?

[st3iny]

The necessary parts in the server are not yet released. You have to be a bit more patient (or install a beta at your own risk).

[ChristophWurst]

nextcloud/documentation#11025