<?php

declare(strict_types=1);

use Shlinkio\Shlink\Core\Config\EnvVars;

return (static function (): array {
    /** @var string|null $disableTrackingFrom */
    $disableTrackingFrom = EnvVars::DISABLE_TRACKING_FROM->loadFromEnv();

    return [

        'tracking' => [
            // Tells if IP addresses should be anonymized before persisting, to fulfil data protection regulations
            // This applies only if IP address tracking is enabled
            'anonymize_remote_addr' => (bool) EnvVars::ANONYMIZE_REMOTE_ADDR->loadFromEnv(true),

            // Tells if visits to not-found URLs should be tracked. The disable_tracking option takes precedence
            'track_orphan_visits' => (bool) EnvVars::TRACK_ORPHAN_VISITS->loadFromEnv(true),

            // A query param that, if provided, will disable tracking of one particular visit. Always takes precedence
            'disable_track_param' => EnvVars::DISABLE_TRACK_PARAM->loadFromEnv(),

            // If true, visits will not be tracked at all
            'disable_tracking' => (bool) EnvVars::DISABLE_TRACKING->loadFromEnv(false),

            // If true, visits will be tracked, but neither the IP address, nor the location will be resolved
            'disable_ip_tracking' => (bool) EnvVars::DISABLE_IP_TRACKING->loadFromEnv(false),

            // If true, the referrer will not be tracked
            'disable_referrer_tracking' => (bool) EnvVars::DISABLE_REFERRER_TRACKING->loadFromEnv(false),

            // If true, the user agent will not be tracked
            'disable_ua_tracking' => (bool) EnvVars::DISABLE_UA_TRACKING->loadFromEnv(false),

            // A list of IP addresses, patterns or CIDR blocks from which tracking is disabled by default
            'disable_tracking_from' => $disableTrackingFrom === null
                ? []
                : array_map(trim(...), explode(',', $disableTrackingFrom)),
        ],

    ];
})();