<?php
/**
 * Collection of helper functions
 *
 * A class that provides various utility methods for the plugin.
 *
 * Contains essential code required for the plugin's initialization and operation.
 *
 */
class AltTextLab_Utility {

    /**
     * Provides a list of available AI models in an associative array format [model_name => Display name]
     *
     */
    public static function supported_model_names() {
        return require plugin_dir_path(dirname( __FILE__ )) . 'admin/config/ai-models.php';
    }

    /**
     * Retrieves a mapping of language codes to their display names [lang_code => Display name]
     *
     */
    public static function supported_languages() {
        return require plugin_dir_path(dirname( __FILE__ )) . 'admin/config/languages.php';
    }

    /**
     * Retrieves the API key that has been configured for the plugin.
     *
     */
    public static function get_api_key() {
        $api_key = get_option( 'alttextlab_api_key' );

        return apply_filters( 'alttextlab_api_key', $api_key );
    }

    public static function is_publicly_accessible() {
        $local_ips = array(
            '127.0.0.1',
            '::1'
        );

        return isset($_SERVER['REMOTE_ADDR']) && !in_array($_SERVER['REMOTE_ADDR'], $local_ips);
    }

    /**
     * Returns the URL where users can purchase additional credits
     *
     */
    public static function get_credits_url() {
        $base_url = "https://app.alttextlab.com/settings/subscription?utm_medium=integration&utm_source=wordpress&utm_campaign=internal_use&utm_content=get_credits";
        return $base_url;
    }

    /**
     * Returns the URL where users can leave a plugin review
     *
     */
    public static function get_review_url() {
        $base_url = "https://wordpress.org/support/plugin/alttextlab/reviews/#new-post";
        return $base_url;
    }

    /**
     * Returns the URL where users can share feedback
     *
     */
    public static function get_feedback_url() {
        $base_url = "https://wordpress.org/support/plugin/alttextlab/";
        return $base_url;
    }

    /**
     * Returns the URL where users can contact support
     *
     */
    public static function get_support_url() {
        $base_url = "https://www.alttextlab.com/contact";
        return $base_url;
    }

    /**
     * Checks whether the WooCommerce plugin is installed and activated
     *
     */
    public static function has_woocommerce() {
        return is_plugin_active('woocommerce/woocommerce.php');
    }

    /**
     * Determine if Yoast is installed/active:
     *
     */
    public static function has_yoast() {
        return is_plugin_active('wordpress-seo/wp-seo.php') || is_plugin_active('wordpress-seo-premium/wp-seo-premium.php');
    }

    /**
     * Determine if AllInOne SEO is installed/active:
     *
     */
    public static function has_aioseo() {
        return is_plugin_active('all-in-one-seo-pack/all_in_one_seo_pack.php');
    }

    /**
     * Determine if RankMath is installed/active:
     *
     */
    public static function has_rankmath() {
        return is_plugin_active('seo-by-rank-math/rank-math.php');
    }

    /**
     * Determine if SEOPress is installed/active:
     *
     */
    public static function has_seopress() {
        return is_plugin_active('wp-seopress/seopress.php');
    }

    /**
     * Determine if SquirrlySEO is installed/active:
     *
     */
    public static function has_squirrly() {
        return is_plugin_active('squirrly-seo/squirrly.php');
    }

    /**
     * Determine if The SEO Framework is installed/active:
     *
     */
    public static function has_theseoframework() {
        return defined('THE_SEO_FRAMEWORK_PRESENT') && THE_SEO_FRAMEWORK_PRESENT;
    }

    /**
     * Determine if SmartCrawl is installed/active.
     *
     */
    public static function has_smartcrawl() {
        include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
        return in_array( 'smartcrawl-seo/wpmu-dev-seo.php', apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) );
    }

    /**
     * Determine if WPML is installed/active.
     */
    public static function is_wpml_active() {
        return defined('ICL_LANGUAGE_CODE');
    }

    /**
     * Get WPML language for given attachment.
     */
    public static function get_wpml_attachment_language( $attachment_id ) {
        $language_details = apply_filters( 'wpml_post_language_details', null, $attachment_id );

        if ( ! is_array( $language_details ) || empty( $language_details['language_code'] ) ) {
            return null;
        }

        return $language_details['language_code'];
    }

}