<?php

if (!defined('ABSPATH')) {
    exit;
}

/**
 * Class adbutler_widget. Widget used for configuring and displaying adbutler ad tags.
 */
class adbutler_widget extends WP_Widget
{
    /**
     * Base constructor for the class
     */
    function __construct()
    {
        parent::__construct('adbutler', 'AdButler Widget', array('description' => 'Displays AdButler Ad Tags'));
    }

    /**
     * @param array $new_instance New saved widget state
     * @param array $old_instance Pre-existing widget state
     *
     * @return array The processed widget state ready to be saved to the db
     */
    function update($new_instance, $old_instance)
    {

        global $abinst;
        $instance = $old_instance;
        if (is_numeric($new_instance['zone'])) {
            $instance['zone'] = strip_tags($new_instance['zone']);
        }

        switch ($new_instance['type']) {
            case 'asyncbeta':
            case 'asyncjs':
            case 'js':
            case 'iframe':
            case 'if_html':
            case 'img':
                $instance['type'] = $new_instance['type'];
                break;
            default:
                break;
        }
        $instance['secure'] = isset($new_instance['secure']) ? $new_instance['secure'] : false;
        if (preg_match('^\d+x\d+$^', $new_instance['size'])) {
            $instance['size'] = $new_instance['size'];
        }
        $instance['name'] = sanitize_text_field($new_instance['name']);
        switch ($new_instance['responsive']) {
            case 'FIXED':
            case 'AUTO':
            case 'INHERIT':
                $instance['responsive'] = $new_instance['responsive'];
                break;
            default:
                break;
        }
        $instance['extra_data'] = sanitize_text_field($new_instance['extra_data']);

        $instance['title'] = sanitize_text_field( $new_instance['title'] );

        $def = array(
            'adbutler_id' => get_option('adbutler_id'),
            'host_name' => get_option('adbutler_host_name'),
            'ssl_host_name' => get_option('adbutler_ssl_host_name'),

            'zone_id' => $instance['zone'],
            'type' => $instance['type'],
            'secure' => $instance['secure'],
            'extra_data' => $instance['extra_data'],

            'size' => $instance['size'],
            'name' => $instance['name'],
            'responsive' => $instance['responsive'],
        );
        if (!$instance['zone'] == 0) {
            $instance['adtag'] = $abinst->build_ad_tag($def);
        }

        return $instance;
    }

    /**
     * Our AdButler administration widget configuration form
     *
     * @param array $instance Widget state variables
     *
     * @return string|void
     */
    function form($instance)
    {
        $zone = 0;
        $secure = 0;
        $type = 'js';
        $size_hidden = '0x0';
        $name_hidden = '';
        $responsive_hidden = 'FIXED';
        $extra_data = '';
        $title = '';

        if ($instance) {

            $zone = esc_attr($instance['zone']);
            $secure = esc_attr($instance['secure']);
            $type = esc_attr($instance['type']);
            $size_hidden = esc_attr($instance['size']);
            $name_hidden = esc_attr($instance['name']);
            $responsive_hidden = esc_attr($instance['responsive']);
            $extra_data = esc_attr($instance['extra_data']);
            $title = esc_attr($instance['title']);
        }
        $responsive_type_list = array(
            'asyncjs' => 'Asynchronous JavaScript (Recommended)',
            'asyncbeta' => 'Asynchronous JavaScript (1.1 Beta)',
            'js' => 'JavaScript',
            'iframe' => 'Iframe',
            'if_html' => 'Iframe (HTML Only)',
            'img' => 'Image (Basic)',
        );

        $fixed_type_list = array(
            'asyncjs' => 'Asynchronous JavaScript (Recommended)',
            'asyncbeta' => 'Asynchronous JavaScript (1.1 Beta)',
            'js' => 'JavaScript',
            'img' => 'Image (Basic)',
        );


        ?>
        <div class="adbutler_widget">
            <p>
                <label for="<?php echo $this->get_field_id('title'); ?>">
                    <?php _e('Internal Title (only in Appearance->Widgets)'); ?> <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>" />
                </label>
            </p>
            <p title="Please select from one of the available zones to configure your advertisement placement.">
                <label
                    for="<?php echo $this->get_field_id('zone'); ?>"><?php _e('Zone', 'spark_domain'); ?></label>
            <div id="adbutler_refresh_button"><input class="button button-secondary button-small" value="Refresh zones"
                                                     onclick="adbutler.populate_zone_lists(true)"></div>
            <select class="adbutler_zone_select widefat" id="<?php echo $this->get_field_id('zone'); ?>"
                    name="<?php echo $this->get_field_name('zone'); ?>"
                    onchange="adbutler.handle_zone_select(this);"
                    data-default-zone="<?php echo $zone ?>"
            >
                <option value="0">-- Select a zone --</option>
                <?php if ($zone) { ?>
                    <option value="<?php echo $zone ?>"><?php echo $name_hidden ?> (<?php echo $size_hidden ?>)
                    </option>
                <?php } ?>
            </select></p>

            <p title="Please select the type of advertisement tags you would like to generate. Asynchronous Javascript is recommended."
               class="adbutler_type_wrap adbutler_type_fixed">
                <label
                    for="<?php echo $this->get_field_id('type_fixed'); ?>"><?php _e('Type', 'spark_domain'); ?></label>
                <select class="adbutler_type_select widefat"
                        id="<?php echo $this->get_field_id('type_fixed'); ?>"
                        name="<?php echo $this->get_field_name('type'); ?>"
                >
                    <?php foreach ($responsive_type_list as $k => $v) {
                        $selectedStr = $k === $type ? ' selected' : ''; ?>
                        <option value="<?php echo $k ?>"<?php echo $selectedStr ?>><?php echo $v ?></option>
                    <?php } ?>
                </select></p>

            <p title="Please select the type of advertisement tags you would like to generate. Asynchronous Javascript is recommended."
               class="adbutler_type_wrap adbutler_type_responsive" style="display:none;">
                <label
                    for="<?php echo $this->get_field_id('type_responsive'); ?>"><?php _e('Type', 'spark_domain'); ?></label>
                <select class="adbutler_type_select widefat"
                        id="<?php echo $this->get_field_id('type_responsive'); ?>"
                        name="<?php echo $this->get_field_name('type'); ?>" disabled>
                    <?php foreach ($fixed_type_list as $k => $v) {
                        $selectedStr = $k === $type ? ' selected' : ''; ?>
                        <option value="<?php echo $k ?>"<?php echo $selectedStr ?>><?php echo $v ?></option>
                    <?php } ?>
                </select></p>

            <p class="adbutler-optional"
               title="Select Secure to enable SSL based ad serving. Note this should only be chosen for secure sites.">
                <input class="checkbox" type="checkbox" <?php checked($secure, 'on'); ?>
                       id="<?php echo $this->get_field_id('secure'); ?>"
                       name="<?php echo $this->get_field_name('secure'); ?>"
                />
                <label for="<?php echo $this->get_field_id('secure'); ?>"><?php _e('Use SSL', 'spark_domain'); ?></label>
            </p>
            </p>

            <p class="adbutler-optional"
               title="Enter extra data to be passed along in your request. This requires configuration of your zones through AdButler.">
                <label
                    for="<?php echo $this->get_field_id('extra_data'); ?>"><?php _e('Extra Data', 'spark_domain'); ?></label>
                <input id="<?php echo $this->get_field_id('extra_data'); ?>"
                       name="<?php echo $this->get_field_name('extra_data'); ?>" class="widefat"
                       value="<?php echo $extra_data ?>"
                /></p>
            <?php if (isset($instance['adtag'])): ?>
                <div title="An ad has been properly configured for this widget.">Ad properly configured</div>
            <?php else: ?>
                <div><p title="Currently no ad has been properly configured for this widget and nothing will display.">No
                        ad configured</p></div>
            <?php endif; ?>

            <input class="size_hidden" id="<?php echo $this->get_field_id('size'); ?>" type="hidden"
                   name="<?php echo $this->get_field_name('size'); ?>" value="<?php echo $size_hidden ?>" readonly/>
            <input class="name_hidden" id="<?php echo $this->get_field_id('name'); ?>" type="hidden"
                   name="<?php echo $this->get_field_name('name'); ?>" value="<?php echo $name_hidden ?>" readonly/>
            <input class="responsive_hidden" id="<?php echo $this->get_field_id('responsive'); ?>" type="hidden"
                   name="<?php echo $this->get_field_name('responsive'); ?>" value="<?php echo $responsive_hidden ?>"
                   readonly/>
        </div>

        <?php if ($instance): ?>
        <script type="text/javascript">
            jQuery(function () {
                adbutler.update_all_lists();
            });
        </script>
    <?php endif;
    }

    /**
     * Public Pacing widget --Ad tag if configured, otherwise nothing
     *
     * @param array $args Core widget variables
     * @param array $instance current state widget to display
     */
    function widget($args, $instance)
    {
        extract($args);
        echo $before_widget;
        if (array_key_exists('adtag', $instance)) {
            echo $instance['adtag'];
        }
        echo $after_widget;
    }
}