Tracking the redirected search terms

[romainruaud]

The tracking mechanism is not triggered when a Redirect is created for a search term.

This is due to the fact, that, in case of a redirect, we never reach the search result page.

We should probably add a plugin on the search result controller : https://github.com/magento/magento2/blob/2.4-develop/app/code/Magento/CatalogSearch/Controller/Result/Index.php#L80

Most probably, we should reuse this one : https://github.com/Smile-SA/elasticsuite/blob/2.11.x/src/module-elasticsuite-catalog/Plugin/CatalogSearch/ResultPlugin.php#L114

And check if ($this->getResponse()->getRedirect()) we then have to fire a new event like the "smile_elasticsuite_redirect_if_one_result" but this time it will be "smile_elasticsuite_redirect_search_term" and then, we have to implement the event collecting in PHP, like for the "one result redirect" : https://github.com/Smile-SA/elasticsuite/blob/2.11.x/src/module-elasticsuite-tracker/Observer/TrackRedirectIfOneResult.php

[romainruaud]

(to create a redirect for a search term, go to Magento Back-Office and then Marketing > Search Terms. Pick one search term, and then add your redirect and save it).

[rbayet]

@romainruaud We also need to take into account headless themes