Settings API Extend

<?php

/**
 * WordPress settings API class
 *
 * @version 1.0 (23-July-2017)
 *
 * @author Harun R Rayhan <info@harunrrayhan.com>
 * @link https://harunrrayhan.com
 */
if ( !class_exists('HRX_Settings_API' ) ):
class HRX_Settings_API {

    private $settings_api;

    function __construct() {
        $this->settings_api = new WeDevs_Settings_API;

        add_action( 'admin_init', array($this, 'admin_init') );
        add_action( 'admin_menu', array($this, 'admin_menu') );
    }

    function admin_init() {

        //set the settings
        $this->settings_api->set_sections( $this->get_settings_sections() );
        $this->settings_api->set_fields( $this->get_settings_fields() );

        //initialize settings
        $this->settings_api->admin_init();
    }

    function admin_menu() {
        add_menu_page( 'GF Checkout Settings', 'GF Checkout', 'delete_posts', 'gf_checkout', array($this, 'plugin_page'), 'dashicons-location', 90);
    }

    function get_settings_sections() {
        $sections = array(
            array(
                'id'    => 'gfc_form',
                'title' => __( 'Postal Form Settings', 'gf-checkout' )
            ),
            array(
                'id'    => 'gfc_postal',
                'title' => __( 'Office Settings', 'gf-checkout' )
            )
        );
        return $sections;
    }

    /**
     * Returns all the settings fields
     *
     * @return array settings fields
     */
    function get_settings_fields() {
        $settings_fields = array(
            'gfc_form' => array(
                array(
                    'name'              => 'form_tittle',
                    'label'             => __( 'Form Title', 'gf-checkout' ),
                    'desc'              => __( 'A title for your postal code search form', 'gf-checkout' ),
                    'placeholder'       => __( 'Postal code search form title', 'gf-checkout' ),
                    'type'              => 'text',
                    'default'           => 'Thank You For Choosing Kodiak',
                    'sanitize_callback' => 'sanitize_text_field'
                ),
                array(
                    'name'              => 'form_subtittle',
                    'label'             => __( 'Form Sub-Title', 'gf-checkout' ),
                    'desc'              => __( 'A sub-title for your postal code search form', 'gf-checkout' ),
                    'placeholder'       => __( 'Sub-title', 'gf-checkout' ),
                    'type'              => 'text',
                    'default'           => 'Please enter your postal code to continue',
                    'sanitize_callback' => 'sanitize_text_field'
                ),
                array(
                    'name'              => 'form_placeholder',
                    'label'             => __( 'Form Placeholder', 'gf-checkout' ),
                    'desc'              => __( 'Placeholde for your postal code search form', 'gf-checkout' ),
                    'placeholder'       => __( 'Your Placeholder', 'gf-checkout' ),
                    'type'              => 'text',
                    'default'           => 'Postal Code',
                    'sanitize_callback' => 'sanitize_text_field'
                ),
                array(
                    'name'              => 'form_submit',
                    'label'             => __( 'Submit Button Text', 'gf-checkout' ),
                    'desc'              => __( 'Text for your postal code search form Submit Button', 'gf-checkout' ),
                    'placeholder'       => __( 'Submit Button Text', 'gf-checkout' ),
                    'type'              => 'text',
                    'default'           => 'Continue',
                    'sanitize_callback' => 'sanitize_text_field'
                ),
                array(
                    'name'    => 'error_text',
                    'label'   => __( 'Postal Code Error Info', 'gf-checkout' ),
                    'desc'    => __( 'User this editor to create <strong>Postal Code Not Found</strong> error data', 'gf-checkout' ),
                    'type'    => 'wysiwyg',
                    'default' => ''
                )
            ),
            'gfc_postal' => array(
                 array(
                    'name'        => 'current_office_codes',
                    'label'       => __( 'Current Office Postal Code', 'gf-checkout' ),
                    'desc'        => __( 'Put your current office postal codes as comma(,) seperated list without any space or line break. Ex: <strong><i>XXXXXX,123456,234567,YYYYYY</i></strong>', 'gf-checkout' ),
                    'placeholder' => __( 'Place your current office postal codes', 'gf-checkout' ),
                    'type'        => 'textarea'
                ),
                array(
                    'name'              => 'current_office_url',
                    'label'             => __( 'Current Office URL', 'gf-checkout' ),
                    'desc'              => __( 'Put your current office form URL. Keep in mind to include either <strong><i>http://</i></strong> or <strong><i>https://</i></strong>', 'gf-checkout' ),
                    'placeholder'       => __( 'ex: https://example.com', 'gf-checkout' ),
                    'type'              => 'text',
                    'default'           => 'http://kodiaksnow.ca/redesign/',
                    'sanitize_callback' => 'sanitize_text_field'
                ),
                array(
                    'name'        => 'second_office_codes',
                    'label'       => __( 'Second Office Postal Code', 'gf-checkout' ),
                    'desc'        => __( 'Put your second office postal codes as comma(,) seperated list without any space or line break. Ex: <strong><i>XXXXXX,123456,234567,YYYYYY</i></strong>', 'gf-checkout' ),
                    'placeholder' => __( 'Place your second office postal codes', 'gf-checkout' ),
                    'type'        => 'textarea'
                ),
                array(
                    'name'              => 'second_office_url',
                    'label'             => __( 'Second Office URL', 'gf-checkout' ),
                    'desc'              => __( 'Put your second office form URL. Keep in mind to include either <strong><i>http://</i></strong> or <strong><i>https://</i></strong>', 'gf-checkout' ),
                    'placeholder'       => __( 'ex: https://example.com', 'gf-checkout' ),
                    'type'              => 'text',
                    'default'           => '',
                    'sanitize_callback' => 'sanitize_text_field'
                )
            )
        );

        return $settings_fields;
    }

    function plugin_page() {
        echo '<div class="wrap">';

        $this->settings_api->show_navigation();
        $this->settings_api->show_forms();

        echo '</div>';
    }

    /**
     * Get all the pages
     *
     * @return array page names with key value pairs
     */
    function get_pages() {
        $pages = get_pages();
        $pages_options = array();
        if ( $pages ) {
            foreach ($pages as $page) {
                $pages_options[$page->ID] = $page->post_title;
            }
        }

        return $pages_options;
    }

}
endif;