<?php

/**
 * Widget to display page links
 *
 * @extends GravityView_Widget
 */
class GravityView_Widget_Page_Links extends \GV\Widget {

	public $icon = 'dashicons-controls-forward';

	protected $show_on_single = false;

	function __construct() {

		$this->widget_description = __( 'Links to multiple pages of results.', 'gk-gravityview' );

		$default_values = array(
			'header' => 1,
			'footer' => 1,
		);
		$settings       = array(
			'show_all' => array(
				'type'  => 'checkbox',
				'label' => __( 'Show each page number', 'gk-gravityview' ),
				'desc'  => __( 'Show every page number instead of summary (eg: 1 2 3 ... 8 »)', 'gk-gravityview' ),
				'value' => false,
			),
		);
		parent::__construct( __( 'Page Links', 'gk-gravityview' ), 'page_links', $default_values, $settings );
	}

	public function render_frontend( $widget_args, $content = '', $context = '' ) {
		$gravityview_view = GravityView_View::getInstance();

		if ( ! $this->pre_render_frontend( $context ) ) {
			return;
		}

		$atts = shortcode_atts(
			array(
				'page_size' => \GV\Utils::get( $gravityview_view->paging, 'page_size' ),
				'total'     => $gravityview_view->total_entries,
				'show_all'  => ! empty( $this->settings['show_all']['default'] ),
				'current'   => (int) \GV\Utils::_GET( 'pagenum', 1 ),
			),
			$widget_args,
			'gravityview_widget_page_links'
		);

		$page_link_args = array(
			'base'      => add_query_arg( 'pagenum', '%#%', (string) gv_directory_link() ),
			'format'    => '&pagenum=%#%',
			'add_args'  => array(),
			'prev_text' => '&laquo;',
			'next_text' => '&raquo;',
			'type'      => 'list',
			'end_size'  => 1,
			'mid_size'  => 2,
			'total'     => empty( $atts['page_size'] ) ? 0 : ceil( $atts['total'] / $atts['page_size'] ),
			'current'   => $atts['current'],
			'show_all'  => ! empty( $atts['show_all'] ), // to be available at backoffice
		);

		/**
		 * Filter the pagination options.
		 *
		 * @since 1.1.4
		 * @param array  $page_link_args Array of arguments for the `paginate_links()` function. [Read more about `paginate_links()`](http://developer.wordpress.org/reference/functions/paginate_links/)
		 */
		$page_link_args = apply_filters( 'gravityview_page_links_args', $page_link_args );

		$page_links = paginate_links( $page_link_args );

		if ( ! empty( $page_links ) ) {
			$class = ! empty( $widget_args['custom_class'] ) ? $widget_args['custom_class'] : '';
			$class = gravityview_sanitize_html_class( 'gv-widget-page-links ' . $class );
			echo '<div class="' . $class . '">' . $page_links . '</div>';
		} else {
			gravityview()->log->debug( 'No page links; paginate_links() returned empty response.' );
		}
	}
}

new GravityView_Widget_Page_Links();
