<?php

/**
 * The admin-specific functionality of the plugin.
 *
 * @link       https://www.transparencycanada.ca/
 * @since      1.0.0
 *
 * @package    TICA_Events
 * @subpackage TICA_Events/admin
 */

/**
 * The admin-specific functionality of the plugin.
 *
 * Defines the plugin name, version, and two examples hooks for how to
 * enqueue the admin-specific stylesheet and JavaScript.
 *
 * @package    TICA_Events
 * @subpackage TICA_Events/admin
 * @author     Orange35 <info@orange35.com>
 */
class TICA_Events_Admin {

	/**
	 * The ID of this plugin.
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var      string    $plugin_name    The ID of this plugin.
	 */
	private $plugin_name;

	/**
	 * The version of this plugin.
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var      string    $version    The current version of this plugin.
	 */
	private $version;

	/**
	 * Initialize the class and set its properties.
	 *
	 * @since    1.0.0
	 * @param      string    $plugin_name       The name of this plugin.
	 * @param      string    $version    The version of this plugin.
	 */
	public function __construct( $plugin_name, $version ) {

		$this->plugin_name = $plugin_name;
		$this->version = $version;

        $type = TICA_Events::POST_TYPE;
        
        $this->when_box_id = "{$type}_form_when";
        $this->from_date_id = "{$type}_from_date";
        $this->to_date_id = "{$type}_to_date";
        $this->from_time_id = "{$type}_from_time";
        $this->to_time_id = "{$type}_to_time";
        $this->when_fields = [
            $this->from_date_id,
            $this->to_date_id,
            $this->from_time_id,
            $this->to_time_id,
        ];

        $this->where_box_id = "{$type}_form_where";
        $this->location_name_id = "{$type}_location_name";
        $this->location_address_id = "{$type}_location_address";
        $this->location_city_id = "{$type}_location_city";
        $this->location_state_id = "{$type}_location_state";
        $this->location_zip_id = "{$type}_location_zip";
        $this->location_country_id = "{$type}_location_country";
        $this->where_fields = [
            $this->location_name_id,
            $this->location_address_id,
            $this->location_city_id,
            $this->location_state_id,
            $this->location_zip_id,
            $this->location_country_id,
        ];

	}

	/**
	 * Register the stylesheets for the admin area.
	 *
	 * @since    1.0.0
	 */
	public function enqueue_styles() {

		wp_enqueue_style( $this->plugin_name, plugin_dir_url( __FILE__ ) . 'css/tica-events-admin.css', $this->version, 'all' );

    }

	/**
	 * Register the JavaScript for the admin area.
	 * @param $hook
	 *
	 * @since    1.0.0
	 */
	public function enqueue_scripts( $hook ) {

	    global $post;

	    // add scripts to add/edit form
        if ( TICA_Events::POST_TYPE == $post->post_type && in_array( $hook, [ 'post-new.php', 'post.php' ] ) ) {
            wp_enqueue_script( $this->plugin_name, plugin_dir_url( __FILE__ ) . 'js/tica-events-edit.js', ['jquery'], $this->version, false );
            
            $options = [
                'from_date_id' => $this->from_date_id,
                'to_date_id'   => $this->to_date_id,
                'from_time_id' => $this->from_time_id,
                'to_time_id'   => $this->to_time_id,
            ];
            $options = json_encode($options);
            wp_add_inline_script($this->plugin_name, "jQuery(document).ready(function() { jQuery('#{$this->when_box_id}').initWhenBox({$options}); });");
        }

	}

    public function register_events_cpt() {

        // register events post type
        $labels = array(
            'name'                  => _x( 'Events', 'Post Type General Name', 'e' ),
            'singular_name'         => _x( 'Event', 'Post Type Singular Name', 'tica-events' ),
            'menu_name'             => __( 'TICA Events', 'tica-events' ),
            'name_admin_bar'        => __( 'Event', 'tica-events' ),
            'archives'              => __( 'Events', 'tica-events' ),
            'attributes'            => __( 'Event Attributes', 'tica-events' ),
            'parent_item_colon'     => __( 'Parent Item:', 'tica-events' ),
            'all_items'             => __( 'All Events', 'tica-events' ),
            'add_new_item'          => __( 'Add New Event', 'tica-events' ),
            'add_new'               => __( 'Add New', 'tica-events' ),
            'new_item'              => __( 'New Event', 'tica-events' ),
            'edit_item'             => __( 'Edit Event', 'tica-events' ),
            'update_item'           => __( 'Update Event', 'tica-events' ),
            'view_item'             => __( 'View Event', 'tica-events' ),
            'view_items'            => __( 'View Events', 'tica-events' ),
            'search_items'          => __( 'Search Events', 'tica-events' ),
            'not_found'             => __( 'Not found', 'tica-events' ),
            'not_found_in_trash'    => __( 'Not found in Trash', 'tica-events' ),
            'featured_image'        => __( 'Featured Image', 'tica-events' ),
            'set_featured_image'    => __( 'Set featured image', 'tica-events' ),
            'remove_featured_image' => __( 'Remove featured image', 'tica-events' ),
            'use_featured_image'    => __( 'Use as featured image', 'tica-events' ),
            'insert_into_item'      => __( /** @lang text */ 'Insert into event', 'tica-events' ),
            'uploaded_to_this_item' => __( 'Uploaded to this events item', 'tica-events' ),
            'items_list'            => __( 'Events list', 'tica-events' ),
            'items_list_navigation' => __( 'Events list navigation', 'tica-events' ),
            'filter_items_list'     => __( 'Filter Events list', 'tica-events' ),
        );
        $args = array(
            'label'                 => __( 'Events', 'tica-events' ),
            'description'           => __( 'Events Description', 'tica-events' ),
            'labels'                => $labels,
            'supports'              => array( 'title', 'editor', 'excerpt', 'thumbnail'  ),
            'hierarchical'          => false,
            'public'                => true,
            'show_ui'               => true,
            'show_in_menu'          => true,
            'menu_position'         => 30,
            'menu_icon'             => plugin_dir_url( __FILE__ ) . 'img/icon.png',
            'show_in_admin_bar'     => true,
            'show_in_nav_menus'     => true,
            'can_export'            => true,
            'has_archive'           => false,
            'exclude_from_search'   => true,
            'publicly_queryable'    => true,
            'capability_type'       => 'post',
            'rewrite'			    => [ 'slug' => 'event' ]
        );
        register_post_type( TICA_Events::POST_TYPE, $args );

    }

    public function add_meta_boxes()
    {

        add_meta_box(
            TICA_Events::POST_TYPE . '_meta_when',
            __( 'When (EDT)', 'tica-events' ),
            [ $this, 'meta_when_callback' ],
            null,
            'side',
            'high'
        );

        add_meta_box( TICA_Events::POST_TYPE . '_meta_where', __( 'Location', 'tica-events' ), [ $this, 'meta_where_callback' ] );

    }

	public function meta_when_callback( $post ) {

        if ( $post->post_type != TICA_Events::POST_TYPE ) {
            return;
        }

        $meta = get_post_meta( $post->ID );
        $from_date = ( ! empty( $meta[$this->from_date_id][0] ) ) ? $meta[$this->from_date_id][0] : '';
        $to_date = ( ! empty( $meta[$this->to_date_id][0] ) ) ? $meta[$this->to_date_id][0] : '';
        $from_time = ( ! empty( $meta[$this->from_time_id][0] ) ) ? $meta[$this->from_time_id][0] : '';
        $to_time = ( ! empty( $meta[$this->to_time_id][0] ) ) ? $meta[$this->to_time_id][0] : '';
        ?>

        <input type="hidden" name="_<?php echo TICA_Events::POST_TYPE; ?>_nonce" value="<?php echo wp_create_nonce( 'edit_event' ); ?>">
        <div id="<?php echo $this->when_box_id; ?>">
            <p>
                <label for="<?php esc_attr_e( $this->from_date_id ); ?>"><?php _e( 'Date From', 'tica-events'); ?></label>
                <input 
                    required 
                    class="date" 
                    type="date" 
                    name="<?php esc_attr_e( $this->from_date_id ); ?>" 
                    id="<?php esc_attr_e( $this->from_date_id ); ?>"
                    value="<?php esc_attr_e( $from_date ); ?>"
                >
            </p>
            <p>
                <label for="<?php esc_attr_e( $this->to_date_id ); ?>"><?php _e( 'Date To', 'tica-events'); ?></label>
                <input 
                    class="date"
                    type="date" 
                    name="<?php esc_attr_e( $this->to_date_id ); ?>" 
                    id="<?php esc_attr_e( $this->to_date_id ); ?>"
                    value="<?php esc_attr_e( $to_date ); ?>"
                >
            </p>
            <p>
                <label for="<?php esc_attr_e( $this->from_time_id ); ?>"><?php _e( 'Time From', 'tica-events'); ?></label>
                <input 
                    required 
                    class="time" 
                    type="time" 
                    name="<?php esc_attr_e( $this->from_time_id ); ?>" 
                    id="<?php esc_attr_e( $this->from_time_id ); ?>"
                    value="<?php esc_attr_e( $from_time ); ?>"
                >
            </p>
            <p>
                <label for="<?php esc_attr_e( $this->to_time_id ); ?>"><?php _e( 'Time To', 'tica-events'); ?></label>
                <input 
                    required 
                    class="time" 
                    type="time" 
                    name="<?php esc_attr_e( $this->to_time_id ); ?>" 
                    id="<?php esc_attr_e( $this->to_time_id ); ?>"
                    value="<?php esc_attr_e( $to_time ); ?>"
                >
            </p>
        </div>

        <?php

    }

    public function meta_where_callback( $post ) {

        if ( $post->post_type != TICA_Events::POST_TYPE ) {
            return;
        }

        $meta = get_post_meta( $post->ID );
        $location_name = ( ! empty( $meta[$this->location_name_id][0] ) ) ? $meta[$this->location_name_id][0] : '';
        $location_address = ( ! empty( $meta[$this->location_address_id][0] ) ) ? $meta[$this->location_address_id][0] : '';
        $location_city = ( ! empty( $meta[$this->location_city_id][0] ) ) ? $meta[$this->location_city_id][0] : '';
        $location_state = ( ! empty( $meta[$this->location_state_id][0] ) ) ? $meta[$this->location_state_id][0] : '';
        $location_zip = ( ! empty( $meta[$this->location_zip_id][0] ) ) ? $meta[$this->location_zip_id][0] : '';
        $location_country = ( ! empty( $meta[$this->location_country_id][0] ) ) ? $meta[$this->location_country_id][0] : '';
        ?>

        <div id="<?php echo $this->where_box_id; ?>">
            <p>
                <label for="<?php esc_attr_e( $this->location_name_id ); ?>"><?php _e( 'Location Name', 'tica-events'); ?></label>
                <input 
                    required 
                    class="text" 
                    type="text" 
                    name="<?php esc_attr_e( $this->location_name_id ); ?>" 
                    id="<?php esc_attr_e( $this->location_name_id ); ?>"
                    value="<?php esc_attr_e( $location_name ); ?>"
                >
            </p>
            <p>
                <label for="<?php esc_attr_e( $this->location_address_id ); ?>"><?php _e( 'Address', 'tica-events'); ?></label>
                <input 
                    class="text"
                    type="text" 
                    name="<?php esc_attr_e( $this->location_address_id ); ?>" 
                    id="<?php esc_attr_e( $this->location_address_id ); ?>"
                    value="<?php esc_attr_e( $location_address ); ?>"
                >
            </p>
            <p>
                <label for="<?php esc_attr_e( $this->location_city_id ); ?>"><?php _e( 'City/Town', 'tica-events'); ?></label>
                <input 
                    class="text"
                    type="text" 
                    name="<?php esc_attr_e( $this->location_city_id ); ?>" 
                    id="<?php esc_attr_e( $this->location_city_id ); ?>"
                    value="<?php esc_attr_e( $location_city ); ?>"
                >
            </p>
            <p>
                <label for="<?php esc_attr_e( $this->location_state_id ); ?>"><?php _e( 'State/County', 'tica-events'); ?></label>
                <input  
                    class="text" 
                    type="text" 
                    name="<?php esc_attr_e( $this->location_state_id ); ?>" 
                    id="<?php esc_attr_e( $this->location_state_id ); ?>"
                    value="<?php esc_attr_e( $location_state ); ?>"
                >
            </p>
            <p>
                <label for="<?php esc_attr_e( $this->location_zip_id ); ?>"><?php _e( 'Zip/Postcode', 'tica-events'); ?></label>
                <input  
                    class="text" 
                    type="text" 
                    name="<?php esc_attr_e( $this->location_zip_id ); ?>" 
                    id="<?php esc_attr_e( $this->location_zip_id ); ?>"
                    value="<?php esc_attr_e( $location_zip ); ?>"
                >
            </p>
            <p>
                <label for="<?php esc_attr_e( $this->location_country_id ); ?>"><?php _e( 'Country', 'tica-events'); ?></label>
                <input 
                    class="text" 
                    type="text" 
                    name="<?php esc_attr_e( $this->location_country_id ); ?>" 
                    id="<?php esc_attr_e( $this->location_country_id ); ?>"
                    value="<?php esc_attr_e( $location_country ); ?>"
                >
            </p>
        </div>

        <?php

    }

    public function meta_save( $post_id ) {

        // Checks save status
        $is_autosave = wp_is_post_autosave( $post_id );
        $is_revision = wp_is_post_revision( $post_id );
        $nonce_name = '_' . TICA_Events::POST_TYPE . '_nonce';
        $is_valid_nonce = ( isset( $_POST[$nonce_name] ) && wp_verify_nonce( $_POST[$nonce_name], 'edit_event' ) ) ? true : false;

        // Exits script depending on save status
        if ( $is_autosave || $is_revision || !$is_valid_nonce ) {
            return;
        }

        $this->_save_when( $post_id );
        $this->_save_where( $post_id );

    }

    protected function _save_when( $post_id ) {

        foreach ( $this->when_fields as $name ) {
            $value = @$_POST[$name];
            if ( $name == $this->to_date_id && empty( $value ) ) {
                $value = @$_POST[$this->from_date_id];
            }
            if ( ! empty( $value ) ) {
                update_post_meta( $post_id, $name, $value );
            } else {
                update_post_meta( $post_id, $name, '' );
            }            
        }

    }

    protected function _save_where( $post_id ) {

        foreach ( $this->where_fields as $name ) {
            if ( isset( $_POST[$name] ) ) {
                update_post_meta( $post_id, $name, $_POST[$name] );
            } else {
                update_post_meta( $post_id, $name, '' );
            }            
        }

    }

    public function posts_columns( $columns ) {

        $first_val = reset( $columns );
        $first_key = key( $columns );
        if ( 'cb' == $first_key ) {
            array_shift( $columns );
            $columns = [ $first_key => $first_val,  TICA_Events::DEFAULT_ORDERBY => 'When' ] + $columns;
        } else {
            $columns = [ TICA_Events::DEFAULT_ORDERBY => 'When' ] + $columns;
        }
	    return $columns;

    }

    public function sortable_columns( $columns ) {

	    $columns[TICA_Events::DEFAULT_ORDERBY] = [ TICA_Events::DEFAULT_ORDERBY, ( 'DESC' == strtoupper( TICA_Events::DEFAULT_ORDER ) ) ];
	    return $columns;

    }

    public function posts_custom_column( $column, $post_id ) {

	    $date = get_post_meta( $post_id, $column, true );
	    $date_format = get_option( 'date_format' );

        if ( $date ) {
            $date = date( $date_format, strtotime( $date ) );
        } else {
            $date = '-' ;
        }
        esc_html_e( $date );

    }

    public function sort_custom_column( $clauses, $wp_query ) {

        global $wpdb;

        $order_by = TICA_Events::DEFAULT_ORDERBY;
        if ( isset( $wp_query->query['orderby'] ) && $wp_query->query['orderby'] == $order_by ) {
            $clauses['join'] .= /** @lang text */
<<<SQL
LEFT JOIN {$wpdb->postmeta} ON {$wpdb->posts}.ID = {$wpdb->postmeta}.post_id AND {$wpdb->postmeta}.meta_key = '{$order_by}' 
SQL;
            $clauses['orderby'] = "{$wpdb->postmeta}.meta_value ";
            if ( strtoupper( $wp_query->get( 'order' ) ) == 'ASC' ){
                $clauses['orderby'] .= 'ASC';
            } else{
                $clauses['orderby'] .= 'DESC';
            }

        }

        return $clauses;

    }

    public function default_order() {

	    if ( TICA_Events::POST_TYPE == @$_REQUEST['post_type'] && empty( $_REQUEST['orderby'] ) ) {
            $url = get_admin_url( null, '/edit.php?' );
            $url .= http_build_query( [
                'post_type' => TICA_Events::POST_TYPE,
                'orderby'   => TICA_Events::DEFAULT_ORDERBY,
                'order'     => TICA_Events::DEFAULT_ORDER,
            ] );
            wp_redirect( $url );
        }

    }

    public function print_admin_styles() {

        if ( ! is_admin() ) {
            return;
        }

        global $pagenow;

        $column = TICA_Events::DEFAULT_ORDERBY;
        if ( $pagenow == 'edit.php' && isset( $_GET['post_type'] ) && $_GET['post_type'] == TICA_Events::POST_TYPE ) {
            echo <<<STYLE
<style type="text/css">
    .column-{$column} {
        width: 10%;
    }
</style>
STYLE;

        }

    }

}