Update the Slack Specification and rewrite all the patches

[damienalexandre]

• some patches are removed thanks to Slack updating his specification
• some remains, specifically the one handling:
  • message attachments;
  • timestamps as string instead of number.

[pyrech]

Looks like Slack changed some object definition and used items to describe possible variant for some object. In particular, the objs_user changed to differentiate normal users and enterprise users and is now rendered as two classes ObjsUserItem0 and ObjsUserItem1 instead of the previous ObjsUser. The denormilizer even returns stdClass instead of these classes.

We should probably apply a patch to transform back the user model in one class. Should we also fix other models that are now described with the items notation?

[damienalexandre]

You were right, the Slack specification introduced some polymorphic objects that cannot be handled gracefully in the generated client.

I added two patches to merge those objects.

• objs_user
• objs_conversation

Could you please test again?

[jamesgraham]

@damienalexandre does this fix #7 ?

[damienalexandre]

As far as I can guess, yes... maybe? But it should be ok on master too... did you try again recently?

Look at this part:

slack-php-api/generated/Endpoint/UsersList.php

Lines 67 to 81 in fc79868

	/**
	* {@inheritdoc}
	*
	*
	* @return \JoliCode\Slack\Api\Model\UsersListGetResponse200|\JoliCode\Slack\Api\Model\UsersListGetResponsedefault|null
	*/
	protected function transformResponseBody(string $body, int $status, \Symfony\Component\Serializer\SerializerInterface $serializer)
	{
	if (200 === $status) {
	return $serializer->deserialize($body, 'JoliCode\\Slack\\Api\\Model\\UsersListGetResponse200', 'json');
	}
	return $serializer->deserialize($body, 'JoliCode\\Slack\\Api\\Model\\UsersListGetResponsedefault', 'json');
	}
	}

If the status is not 200, the UsersListGetResponsedefault object is used, and the error string is here:

slack-php-api/generated/Model/UsersListGetResponsedefault.php

Lines 13 to 22 in fc79868

	class UsersListGetResponsedefault
	{
	/**
	* @var string
	*/
	protected $error;
	/**
	* @var bool
	*/
	protected $ok;

[pyrech]

The PR now works great on https://github.com/jolicode/secret-santa. Great jobs 👏