Healthcheck Page

[romainruaud]

We need a page dedicated to healthchecks.

This page should be accessible under the ElasticSuite > Healthcheck link in the menu.

The page is a simple grid (maybe try to do a nice html table with styles a bit nicer than the Magento ones).

The grid should be fed with an object named \Smile\ElasticsuiteCore\Healthcheck\List

This object should contains an array of \Smile\ElasticsuiteCore\Healthcheck\CheckInterface that can be injected via the DI.

The CheckInterface should have these methods :

• getIdentifier() : return the check identifier (internal identifier)

• getDescription() : return the check description

• getStatus() : a closed-list of status : 'success', 'warning', 'error'

• getSortOrder() : the sort-order of the check, to be able to display them in a defined order

For now, you can implement your two existing warning messages (ghost indices, and number of shards), as healthchecks.

We will implement more healthchecks (number of virtual categories, tracking events properly indexed, etc...) later.

[rbayet]

@vahonc Please add a "isVisible" in the interface, which will return a boolean.
By default, all checks have isVisible = true.
And only show isVisible = true checks in the grid.