<?php

namespace com\fwdekker\deathnotifier\tracking;

use com\fwdekker\deathnotifier\Action;
use com\fwdekker\deathnotifier\ActionException;
use com\fwdekker\deathnotifier\ActionMethod;
use com\fwdekker\deathnotifier\validator\IsNotBlankRule;


/**
 * Removes a tracking of the current user.
 */
class RemoveTrackingAction extends Action
{
    /**
     * @var TrackingManager the manager to remove the tracking with
     */
    private readonly TrackingManager $tracking_manager;


    /**
     * Constructs a new `RemoveTrackingAction`.
     *
     * @param TrackingManager $tracking_manager the manager to remove the tracking with
     */
    public function __construct(TrackingManager $tracking_manager)
    {
        parent::__construct(
            ActionMethod::POST,
            "remove-tracking",
            require_logged_in: true,
            require_valid_csrf_token: true,
            rule_lists: ["person_name" => [new IsNotBlankRule()]],
        );

        $this->tracking_manager = $tracking_manager;
    }


    /**
     * Removes the current user's tracking of `$_POST["person_name"]`.
     *
     * @return mixed `null`
     */
    function handle(): mixed
    {
        $this->tracking_manager->remove_tracking($_SESSION["uuid"], $_POST["person_name"]);

        return null;
    }
}