<?php

if ( ! defined( 'ABSPATH' ) ) {
    exit; // Exit if accessed directly
}

class WPF_AJAX {

    public function __construct() {

        add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_link_click_script' ) );

        // AJAX handlers
        add_action( 'wp_ajax_apply_tags', array( $this, 'apply_tags' ) );
        add_action( 'wp_ajax_nopriv_apply_tags', array( $this, 'apply_tags' ) );

        add_action( 'wp_ajax_remove_tags', array( $this, 'remove_tags' ) );
        add_action( 'wp_ajax_nopriv_remove_tags', array( $this, 'remove_tags' ) );

        add_action( 'wp_ajax_update_user', array( $this, 'update_user' ) );
        //add_action( 'wp_ajax_nopriv_update_user', array( $this, 'update_user' ) );

    }

    /**
     * Applies tags to a given user via AJAX call
     *
     * @access public
     * @return void
     */

    public function apply_tags() {

        $tags = $_POST['tags'];

        if( isset( $_POST['user_id'] ) ) {
            $user_id = intval($_POST['user_id']);
        } else {
            $user_id = wpf_get_current_user_id();
        }

        if( ! is_array( $tags ) ) {
            $tags = explode(',', $tags);
        }

        $tags = array_map('sanitize_text_field', $tags);

        $tags_to_apply = array();

        foreach ( $tags as $tag ) {

            $tag_id = wp_fusion()->user->get_tag_id( $tag );

            if ( false === $tag_id ) {

                wpf_log( 'notice', $user_id, 'Unable to determine tag ID from tag with name <strong>' . $tag . '</strong>. Tag will not be applied.' );
                continue;

            }

            $tags_to_apply[] = $tag_id;
        }

        if ( ! empty( $tags_to_apply ) ) {

            wp_fusion()->user->apply_tags( $tags_to_apply, $user_id );

        }

        die();

    }

    /**
     * Applies tags to a given user via AJAX call
     *
     * @access public
     * @return void
     */

    public function remove_tags() {

        $tags = $_POST['tags'];

        if( isset( $_POST['user_id'] ) ) {
            $user_id = intval($_POST['user_id']);
        } else {
            $user_id = wpf_get_current_user_id();
        }

        if( ! is_array( $tags ) ) {
            $tags = explode(',', $tags);
        }

        $tags = array_map('sanitize_text_field', $tags);

        $tags_to_remove = array();

        foreach ( $tags as $tag ) {

            $tag_id = wp_fusion()->user->get_tag_id( $tag );

            if ( false === $tag_id ) {

                wpf_log( 'notice', $user_id, 'Unable to determine tag ID from tag with name <strong>' . $tag . '</strong>. Tag will not be applied.' );
                continue;

            }

            $tags_to_remove[] = $tag_id;
        }

        if ( ! empty( $tags_to_remove ) ) {

            wp_fusion()->user->remove_tags( $tags_to_remove, $user_id );

        }

        die();

    }

    /**
     * Updates contact via AJAX call
     *
     * @access public
     * @return void
     */

    public function update_user() {

        $update_data = json_decode( stripslashes( $_POST['data'] ), true );

        if( isset( $_POST['user_id'] ) ) {
            $user_id = intval($_POST['user_id']);
        } else {
            $user_id = wpf_get_current_user_id();
        }

        if ( is_array( $update_data ) ) {

            $update_data = array_map( 'sanitize_text_field', $update_data );

            // Figure out how we're doing the update

            $contact_fields = wp_fusion()->settings->get( 'contact_fields', array() );
            $crm_fields = wp_fusion()->settings->get( 'crm_fields', array() );

            // CRMs with field groupings

            if( is_array( reset( $crm_fields ) ) ) {

                $crm_fields_tmp = array();

                foreach( $crm_fields as $field_group ) {

                    foreach( $field_group as $field => $label ) {

                        $crm_fields_tmp[ $field ] = $label;

                    }

                }

                $crm_fields = $crm_fields_tmp;

            }

            $user_meta_data = array();
            $crm_data = array();

            foreach( $update_data as $key => $value ) {

                if( isset( $contact_fields[ $key ] ) && $contact_fields[ $key ]['active'] == true ) {

                    $user_meta_data[ $key ] = $value;

                } else {

                    foreach( $crm_fields as $field => $label ) {

                        if( $key == $field || $key == $label ) {

                            $crm_data[ $field ] = $value;

                        }

                    }

                }

            }

            if( ! empty( $user_meta_data ) ) {
                wp_fusion()->user->push_user_meta( $user_id, $user_meta_data );
            }

            if( ! empty( $crm_data ) ) {
                $contact_id = wp_fusion()->user->get_contact_id( $user_id );
                wp_fusion()->crm->update_contact( $contact_id, $crm_data, false );
            }

        }

        die();

    }

    /**
     * Enqueues link click tracking scripts if option is enabled
     *
     * @access public
     * @return void
     */

    public function enqueue_link_click_script() {

        if ( ! wp_script_is( 'wpf-apply-tags' ) && wp_fusion()->settings->get( 'link_click_tracking' ) == true ) {

            wp_enqueue_script( 'wpf-apply-tags', WPF_DIR_URL . 'assets/js/wpf-apply-tags.js', array( 'jquery' ), WP_FUSION_VERSION, true );
            wp_localize_script( 'wpf-apply-tags', 'wpf_ajax', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ) ) );

        }

    }

}