<?php

GFForms::include_feed_addon_framework();

class GFM2PAddOn extends GFFeedAddOn {

    protected $_version = GF_M2P_ADDON_VERSION;
    protected $_min_gravityforms_version = '2.0';
    protected $_slug = 'm2paddon';
    protected $_path = 'gravityformsm2p/gfm2p.php';
    protected $_full_path = __FILE__;
    protected $_title = 'Gravity Forms Membership 2 Pro Add-On';
    protected $_short_title = 'Membership 2 Pro';

    private static $_instance = null;

    /**
     * Get an instance of this class.
     *
     * @return GFM2PAddOn
     */
    public static function get_instance() {
        if ( self::$_instance == null ) {
            self::$_instance = new GFM2PAddOn();
        }

        return self::$_instance;
    }

    /**
     * Plugin starting point. Handles hooks, loading of language files and PayPal
     * delayed payment support.
     */
    public function init($api) {

        parent::init();

        $this->add_delayed_payment_support(
            array(
                'option_label' => esc_html__( 'Subscribe to Membership only when payment is received.', 'm2paddon' )
            )
        );

    }


    // # FEED PROCESSING ---------------------------------------------------------

    /**
     * Process the feed i.e. add user to membership based on level selected.
     *
     * @param array $feed The feed object to be processed.
     * @param array $entry The entry object currently being processed.
     * @param array $form The form object currently being processed.
     *
     * @return bool|void
     */
    public function process_feed( $feed, $entry, $form ) {
        $email = $this->get_field_value( $form, $entry, $feed['meta']['email'] );
        $membership_name = $this->get_field_value( $form, $entry, $feed['meta']['membership_name'] );
        $user = $this->get_field_value( $form, $entry, $feed['meta']['user'] );

        // Retrieve the name => value pairs for all fields mapped in the 'mappedFields' field map.
        $field_map = $this->get_field_map_fields( $feed, 'mappedFields' );
        // Loop through the fields from the field map setting building an array of values to be passed to the third-party service.
        $merge_vars = array();
        foreach ( $field_map as $name => $field_id ) {
            // Get the field value for the specified field id
            $merge_vars[ $name ] = $this->get_field_value( $form, $entry, $field_id );
        }
        // Send the values to the Membership 2 Pro API
        function m2paddon_add_subscription( ) {
            $api = ms_api();
            $user_id = get_userdatabylogin($user)->ID;
            $membership_id = $api->get_membership_id( $membership_name );
            // Add the subscription
            $api->add_subscription($user_id, $membership_id);
        }

        add_action( 'ms_init', 'm2paddon_add_subscription' );

    }


    // # SCRIPTS & STYLES --------------------------------------------------------

    /**
     * Return the scripts which should be enqueued.
     *
     * @return array
     */
    public function scripts() {
        $scripts = array(
            array(
                'handle'  => 'my_script_js',
                'src'     => $this->get_base_url() . '/js/my_script.js',
                'version' => $this->_version,
                'deps'    => array( 'jquery' ),
                'strings' => array(
                    'first'  => esc_html__( 'First Choice', 'm2paddon' ),
                    'second' => esc_html__( 'Second Choice', 'm2paddon' ),
                    'third'  => esc_html__( 'Third Choice', 'm2paddon' ),
                ),
                'enqueue' => array(
                    array(
                        'admin_page' => array( 'form_settings' ),
                        'tab'        => 'm2paddon',
                    ),
                ),
            ),
        );

        return array_merge( parent::scripts(), $scripts );
    }

    /**
     * Return the stylesheets which should be enqueued.
     *
     * @return array
     */
    public function styles() {

        $styles = array(
            array(
                'handle'  => 'my_styles_css',
                'src'     => $this->get_base_url() . '/css/my_styles.css',
                'version' => $this->_version,
                'enqueue' => array(
                    array( 'field_types' => array( 'poll' ) ),
                ),
            ),
        );

        return array_merge( parent::styles(), $styles );
    }

    // # ADMIN FUNCTIONS --------------------------------------------------------

    /**
     * Configures the settings which should be rendered on the feed edit page in
     * the Form Settings > Membership 2 Pro Feed Add-On area.
     *
     * @return array
     */
    public function feed_settings_fields() {
        return array(
            array(
                'title'  => esc_html__( 'Membership 2 Pro Settings', 'm2paddon' ),
                'fields' => array(
                    array(
                        'label'   => esc_html__( 'Membership Feed Name', 'm2paddon' ),
                        'type'    => 'text',
                        'name'    => 'feedName',
                        'class'   => 'small',
                    ),
                    array(
                        'name'      => 'mappedFields',
                        'label'     => esc_html__( 'Map Fields', 'm2paddon' ),
                        'type'      => 'field_map',
                        'field_map' => array(
                            array(
                                'name'       => 'membership_name',
                                'label'      => esc_html__( 'Membership Name', 'm2paddon' ),
                                'required'   => 1,
                                'field_type' => array( 'text', 'hidden' ),
                                'tooltip' => esc_html__( 'The Membership Name to Subscribe to', 'm2paddon' ),
                            ),
                            array(
                                'name'       => 'email',
                                'label'      => esc_html__( 'Email', 'm2paddon' ),
                                'required'   => 1,
                                'field_type' => array( 'text', 'hidden' ),
                                'tooltip' => esc_html__( 'The Email Address of the new user', 'm2paddon' ),
                            ),
                            array(
                                'name'       => 'user',
                                'label'      => esc_html__( 'User Name', 'm2paddon' ),
                                'required'   => 1,
                                'field_type' => array( 'text', 'hidden' ),
                                'tooltip' => esc_html__( 'The User Name', 'm2paddon' ),
                            ),
                        ),
                    ),
                    array(
                        'name'           => 'condition',
                        'label'          => esc_html__( 'Condition', 'm2paddon' ),
                        'type'           => 'feed_condition',
                        'checkbox_label' => esc_html__( 'Enable Condition', 'm2paddon' ),
                        'instructions'   => esc_html__( 'Process Membership if', 'm2paddon' ),
                    ),
                ),
            ),
        );
    }

    /**
     * Configures which columns should be displayed on the feed list page.
     *
     * @return array
     */
    public function feed_list_columns() {
        return array(
            'feedName'  => esc_html__( 'Name', 'm2paddon' ),
            'mytextbox' => esc_html__( 'My Textbox', 'm2paddon' ),
        );
    }

    /**
     * Format the value to be displayed in the mytextbox column.
     *
     * @param array $feed The feed being included in the feed list.
     *
     * @return string
     */
    public function get_column_value_mytextbox( $feed ) {
        return '<b>' . rgars( $feed, 'meta/mytextbox' ) . '</b>';
    }

    /**
     * Prevent feeds being listed or created if an api key isn't valid.
     *
     * @return bool
     */
    public function can_create_feed() {

        // Get the plugin settings.
        $settings = $this->get_plugin_settings();

        // Access a specific setting e.g. an api key
        $key = rgar( $settings, 'apiKey' );

        return true;
    }

}