<?php
    /**
    *This plugin provides the route handling that helps creating routes
    */
    class wit_witchroute
    {

        /*
            Register the new posttype:wit-route
            Load the metaboxes for the route
            Register the ajax methods for data handling
        */
        public function __construct()
        {
            $this->register_post_type();
            $this->metaboxes();

            $wit_date = wit_date::getInstance();

            if ( is_admin() )
            {

                add_action('wp_ajax_remove_date_from_route', function()
                {
                    $wit_date = wit_date::getInstance();
                    $wit_date->removeDate($_POST);
                });

                add_action('wp_ajax_insert_date_to_route', function()
                {
                    $wit_date = wit_date::getInstance();
                    $wit_date->insertDate($_POST);
                });
            }

        }

        /*
            Declare the new post stype and add it
        */
        public function register_post_type()
        {

            $labels = array(
                'name' => __('Routen'),
                'singular_name' => __('Routen Einzelansicht'),
                'add_new' => _x('Hinzuf&uuml;gen', 'Listing'),
                'add_new_item' => __('F&uuml;ge neue Route hinzu'),
                'edit_item' => __('Route bearbeiten'),
                'new_item' => __('Neue Route'),
                'all_items' => __('Zeige Alle'),
                'view_item' => __('Route anzeigen'),
                'search_items' => __('Route suchen'),
                'not_found' =>  __('Keine Route gefunden'),
                'not_found_in_trash' => __('Keine Route im M&uuml;ll gefunden'),
                'parent_item_colon' => '',
                'menu_name' => 'Routen'
            );

            $args = array(
                    'labels' => $labels,
                    'public' => true,
                    'publicly_queryable' => true,
                    'show_ui' => true,
                    'show_in_menu' => true,
                    'query_var' => 'route',
                    'menu_position' => 5,
                    'has_archive' => true,
                    'rewrite' => array( 'slug' => 'routen-ansicht' ),
                    'supports' => array('title', 'editor', 'thumbnail','excerpt')
            );


            register_post_type('wit-route', $args);
        }

        /*
            This requires the nextgen gallery plugin to be installed
            It will get the gallery names and adds them to the plugin
            so that the user is able to choose from a gallery for a specific route
        */
        public static function getGalleries()
        {
            global $wpdb;

            $data       =   wit_witchroute::getMetaBox();

            $sql        =   "SELECT gid, name FROM ". $wpdb->prefix . "ngg_gallery";
            $galleries  =   $wpdb->get_results($sql);

            foreach($galleries as $gal)
            {
                $data['fields'][6]['options'][] =   array('name' => $gal->name, 'value' => $gal->gid );
            }

            return $data;
        }


        /*
            These are the metaboxes that will be added to the admin panel when creating a new route
        */
        public function metaboxes()
        {

            //add the meta boxes
            add_action('add_meta_boxes', function() {
                $meta_box   =   wit_witchroute::getMetaBox();

                add_meta_box($meta_box['id'], $meta_box['title'], 'witchroute_show_box', $meta_box['page']);
            });

            // Callback function to show fields in meta box
            function witchroute_show_box( $post ) {
               $meta_box    =   wit_witchroute::getGalleries();
                // Use nonce for verification
                echo '<input type="hidden" name="witchroute_meta_box_nonce" value="', wp_create_nonce(basename(__FILE__)), '" />';

                echo '<table class="form-table">';

                foreach ($meta_box['fields'] as $field) {
                    // get current post meta data
                    $meta = get_post_meta($post->ID, $field['id'], true);

                    echo '<tr>',
                            '<th style="width:20%"><label for="', $field['id'], '">', $field['name'], '</label></th>',
                            '<td>';
                    switch ($field['type']) {
                        case 'text':
                            echo '<input type="text" name="', $field['id'], '" id="', $field['id'], '" value="', $meta ? $meta : $field['std'], '" size="30" style="width:97%" />', '<br />', $field['desc'];
                            break;
                        case 'textarea':
                            echo '<textarea name="', $field['id'], '" id="', $field['id'], '" cols="60" rows="4" style="width:97%">', $meta ? $meta : $field['std'], '</textarea>', '<br />', $field['desc'];
                            break;
                        case 'select':
                            echo '<select name="', $field['id'], '" id="', $field['id'], '">';
                            foreach ($field['options'] as $option) {
                                echo '<option', $meta == $option['value'] ? ' selected="selected"' : '', '>', $option['name'], '</option>';
                            }
                            echo '</select>';
                            break;
                        case 'radio':
                            foreach ($field['options'] as $option) {
                                echo '<input type="radio" name="', $field['id'], '" value="', $option['value'], '"', $meta == $option['value'] ? ' checked="checked"' : '', ' />', $option['name'];
                            }
                            break;
                        case 'checkbox':
                            echo '<input type="checkbox" name="', $field['id'], '" id="', $field['id'], '"', $meta ? ' checked="checked"' : '', ' />';
                            break;
                    }
                    echo     '<td>',
                        '</tr>';
                }

                echo '</table>';
            }

            add_action('save_post', 'witchroute_save_data');

            /*
                Save the data
            */
            function witchroute_save_data($post_id)
            {
                $meta_box = wit_witchroute::getMetaBox();

                // verify nonce
                if (!wp_verify_nonce($_POST['witchroute_meta_box_nonce'], basename(__FILE__))) {
                    return $post_id;
                }

                // check autosave
                if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
                    return $post_id;
                }

                // check permissions
                if ('page' == $_POST['post_type']) {
                    if (!current_user_can('edit_page', $post_id)) {
                        return $post_id;
                    }
                } elseif (!current_user_can('edit_post', $post_id)) {
                    return $post_id;
                }

                foreach ($meta_box['fields'] as $field) {
                    $old = get_post_meta($post_id, $field['id'], true);
                    $new = $_POST[$field['id']];

                    if ($new && $new != $old) {
                        update_post_meta($post_id, $field['id'], $new);
                    } elseif ('' == $new && $old) {
                        delete_post_meta($post_id, $field['id'], $old);
                    }
                }
            }


        }

        /*
            Declare the custom fields for the metabox
            which are: difficulty, curves, length, country, gallery, start and destination
        */
        public static function getMetaBox()
        {
            $prefix = 'witchroute_';
            //create the meta boxes
            return array(
                'id' => 'witchroute-meta-box',
                'title' => 'Route Details',
                'page' => 'wit-route',
                'fields' => array(
                    array(
                        'name' => 'Schwierigkeit',
                        'id' => $prefix . 'level',
                        'type' => 'select',
                        'options' => array('0','1', '2', '3', '4')
                    ),
                    array(
                        'name' => 'Anzahl an Kurven',
                        'id' => $prefix . 'curves',
                        'type' => 'text',
                        'std' => '100'
                    ),
                    array(
                        'name' => 'Streckenl&auml;nge',
                        'id' => $prefix . 'length',
                        'type' => 'text',
                        'std' => '250'
                    ),
                    array(
                        'name' => 'Land',
                        'id' => $prefix . 'country',
                        'type' => 'select',
                        'options' => array(array("value"=>"Deutschland", 'name'=>"Deutschland"),
                                            array("value"=>"&Ouml;sterreich", 'name'=>"&Ouml;sterreich"),
                                            array("value"=>"Schweiz", 'name'=>"Schweiz"),
                                            array("value"=>"Frankreich", 'name'=>"Frankreich"),
                                            array("value"=>"England", 'name'=>"England"))
                    ),
                    array(
                        'name' => 'Gallery',
                        'id' => $prefix . 'gallery',
                        'type' => 'select',
                        'options' => array()
                    ),
                    array(
                        'name' => 'Start Ort',
                        'id' => $prefix . 'start',
                        'type' => 'text',
                        'std' => 'Hamburg'
                    ),
                    array(
                        'name' => 'Ziel Ort',
                        'id' => $prefix . 'destination',
                        'type' => 'text',
                        'std' => 'Hamburg'
                    ),
                )
            );
        }


    }