<?php
namespace ETC\App\Controllers\Shortcodes;

use ETC\App\Controllers\Shortcodes;

/**
 * Blog shortcode.
 *
 * @since      1.4.4
 * @package    ETC
 * @subpackage ETC/Controllers/Shortcodes
 */
class Blog extends Shortcodes {

    function hooks() {}

    function blog_shortcode( $atts, $content ) {
	    global $et_loop;
	
	    $atts = shortcode_atts( array(
		    'post_type'      => 'post',
		    'include'        => '',
		    'custom_query'   => '',
		    'taxonomies'     => '',
		    'items_per_page' => 10,
		    'items_limit'    => 10,
		    'orderby'        => 'date',
		    'order'          => 'DESC',
		    'meta_key'       => '',
		    'blog_hover'     => 'zoom',
		    'blog_align'     => 'left',
		    'exclude'        => '',
		    'paged'          => 0,
		    'html_type'      => false,
		    'hide_img'       => false,
		    'size'           => 'medium',
		    'class'          => '',
		    'blog_layout'    => 'grid',
		    'is_preview'     => false
	    ), $atts );
	
	    $options = array();
	
	    $options['_paged'] = ( isset( $_GET['et-paged'] ) && ! empty( $_GET['et-paged'] ) ) ? $_GET['et-paged'] : false;
	
	    if ( ! $atts['items_limit'] ) {
		    $atts['items_limit'] = 10;
	    }
	
	    if ( ! $atts['items_per_page'] ) {
		    $atts['items_per_page'] = 10;
	    }
	
	    if ( $atts['paged'] ) {
		    $options['_paged'] = $atts['paged'];
	    }
	
	    $options['wp_query_args'] = array(
		    'post_type'      => 'post',
		    'post_status'    => 'publish',
		    'paged'          => $atts['paged'],
		    'posts_per_page' => $atts['items_per_page'],
		    // 'include'  => $atts['include'],
		    // 'custom_query'  => $atts['custom_query'],
		    // 'taxonomies'  => $atts['taxonomies'],
		    // 'orderby'  => $atts['orderby'],
		    // 'order'  => $atts['order'],
		    // 'meta_key'  => $atts['meta_key'],
		    // 'exclude'  => $atts['exclude'],
	    );
	
	    if ( $atts['post_type'] == 'ids' && $atts['include'] != '' ) {
		    $options['wp_query_args']['post__in'] = explode( ',', $atts['include'] );
	    }
	
	    if ( ! empty( $atts['exclude'] ) ) {
		    $options['wp_query_args']['post__not_in'] = explode( ',', $atts['exclude'] );
	    }
	
	    if ( ! empty( $atts['taxonomies'] ) ) {
		    $options['taxonomy_names'] = get_object_taxonomies( 'post' );
		    $options['terms']          = get_terms( $options['taxonomy_names'], array(
			    'orderby' => 'name',
			    'include' => $atts['taxonomies']
		    ) );
		
		    if ( ! is_wp_error( $options['terms'] ) && ! empty( $options['terms'] ) ) {
			    $options['wp_query_args']['tax_query'] = array( 'relation' => 'OR' );
			    foreach ( $options['terms'] as $key => $term ) {
				    $options['wp_query_args']['tax_query'][] = array(
					    'taxonomy'         => $term->taxonomy,
					    'field'            => 'slug',
					    'terms'            => array( $term->slug ),
					    'include_children' => true,
					    'operator'         => 'IN'
				    );
			    }
		    }
	    }
	
	    if ( ! empty( $atts['order'] ) ) {
		    $options['wp_query_args']['order'] = $atts['order'];
	    }
	
	    if ( ! empty( $atts['meta_key'] ) ) {
		    $options['wp_query_args']['meta_key'] = $atts['meta_key'];
	    }
	
	    if ( ! empty( $atts['orderby'] ) ) {
		    $options['wp_query_args']['orderby'] = $atts['orderby'];
	    }
	
	    // start_items_per_page
	    $options['start_items_pp'] = $atts['items_per_page'];
	    $options['max_pages']      = ceil( $atts['items_limit'] / $atts['items_per_page'] );
	
	    if ( $options['_paged'] > $options['max_pages'] ) {
		    return '<p class="error">' . esc_html__( 'This page does not exist', 'xstore-core' ) . '</p>';
	    }
	
	    if ( $atts['items_limit'] < $atts['items_per_page'] ) {
		    $atts['items_per_page'] = $atts['items_limit'];
	    }
	
	    if ( $options['_paged'] > 1 ) {
		    // items_per_page_finished
		    $options['items_pp_f'] = ( $atts['items_per_page'] * $options['_paged'] ) - $atts['items_limit'];
		    $options['items_pp_f'] = ( $atts['items_per_page'] - $options['items_pp_f'] );
		
		    // if ( $options['items_pp_f'] && $options['items_pp_f'] < $atts['items_per_page'] ) {
		    //$atts['items_per_page'] = $options['items_pp_f'];
		    // }
	    }
	
	    $options['wp_query'] = new \WP_Query( $options['wp_query_args'] );
	    $options['page_url'] = get_permalink();
	
	    if ( function_exists( 'etheme_enqueue_style' ) ) {
		    etheme_enqueue_style( 'blog-global', true );
            switch ( $atts['blog_layout'] ) {
                case 'grid':
                case 'grid2':
                    etheme_enqueue_style( 'post-grid-grid2' );
                    if ( etheme_get_option( 'blog_full_width', 0 ) ) {
                        etheme_enqueue_style( 'blog-full-width', true );
                    }
                    if ( etheme_get_option( 'blog_masonry', 0 ) ) {
                        etheme_enqueue_style( 'blog-masonry', true );
                    }
                    break;
                case 'default':
                case 'center':
                    break;
                case 'timeline':
                case 'timeline2':
                    etheme_enqueue_style( 'post-timeline', true );
                    break;
                case 'small':
                case 'chess':
                    etheme_enqueue_style( 'post-small-chess', true );
                    break;
                default:
                    etheme_enqueue_style( 'post-' . $atts['blog_layout'], true );
                    break;
            }
        }
        
		ob_start();

		$et_loop['columns'] = 2;
		$et_loop['loop'] = 0;
		$et_loop['blog_layout'] = $atts['blog_layout'];
		$et_loop['blog_align'] = $atts['blog_align'];
		$et_loop['blog_hover'] = $atts['blog_hover'];
		$et_loop['size'] = $atts['size'];
		$et_loop['hide_img'] = $atts['hide_img'];

		if ( in_array( $et_loop['blog_layout'], array( 'timeline', 'grid', 'small') ) ) 
			$et_loop['columns'] = 1;

		$options['smaller_from'] = 8;

		if( ! empty( $atts['blog_layout'] ) ) 
			$options['smaller_from'] = 999;

		$options['_paged'] = ( get_query_var( 'paged' ) ) ? get_query_var( 'paged' ) : 1;

		$options['_paged'] = ( isset( $_GET['et-paged'] ) && ! empty( $_GET['et-paged'] ) ) ? $_GET['et-paged'] : $options['_paged'] ;

        if ( $atts['paged'] ) {
            $options['_paged'] = $atts['paged'];
        }

        if ( $options['_paged'] >= $options['max_pages'] ) {
             $options['start_post'] = $atts['items_limit'] - $options['wp_query']->post_count;
             $options['last_post'] = $atts['items_limit'];
        } else {
            $options['start_post'] = ($options['_paged'] - 1) * $atts['items_per_page'] + 1;
            $options['last_post'] = ($options['_paged'] - 1) * $atts['items_per_page']  + $options['wp_query']->post_count;

        }

        if ( ! $atts['html_type'] ) 
            echo '<div class="et-blog clearfix">';

		$options['_i'] = 0;

		while ( $options['wp_query']->have_posts() ) :

			$options['wp_query']->the_post();

            if ( $options['_paged'] > 1 && $options['items_pp_f'] && 
            	$options['items_pp_f'] < $atts['items_per_page'] && 
            	$options['items_pp_f'] == $options['_i'] ) {
                break;
            }

			$options['_i']++;

			if( $options['_i'] == $options['smaller_from'] ) {
				$et_loop['size'] = 'thumbnail';
				echo '<div class="posts-small">';
			}

			get_template_part( 'content' );

		endwhile;

		if( $options['_i'] >= $options['smaller_from'] )
			echo '</div>';

		if ( $atts['items_limit'] > $options['wp_query']->found_posts ) 
			$atts['items_limit'] = $options['wp_query']->found_posts;

		if ( $options['max_pages'] == $options['_paged'] )
			$options['start_post'] = $options['start_post'] + 1;

		$options['before'] = etheme_count_posts(
			array(
				'skip_query' => true,
				'total' 	 => $atts['items_limit'], //$options['wp_query']->found_posts,
				'first'		 => $options['start_post'],
				'last' 		 => $options['last_post'],
				'echo' 		 => false
			) 
		);

		if ( $options['max_pages'] > $options['wp_query']->max_num_pages  ) {
			$options['max_pages'] = $options['wp_query']->max_num_pages;
		}

		if ( $options['wp_query']->max_num_pages > 0 ) {
			if ( function_exists('etheme_enqueue_style')) {
				etheme_enqueue_style( 'blog-ajax' );
				etheme_enqueue_style( 'pagination' );
			}
			$options['pagination_args'] = array(
				'type'   => 'custom',
				'url'    => $options['page_url'],
				'pages'  => $options['max_pages'], //$options['wp_query']->max_num_pages,
				'paged'  => $options['_paged'],
				'class'  => 'align-right',
				'before' => $options['before']
			);
			etheme_pagination( $options['pagination_args'] );
		}

        $atts['items_per_page'] = $options['start_items_pp'];
        
		?>

        <div class="et-load-blog">
            <span
                class="hidden et-element-args"
                type="text/template"
                data-element="et_blog"
            >
                <?php echo json_encode( $atts ); ?>   
            </span>
        </div>
		<?php if ( ! $atts['html_type'] )
            echo '</div>'; 


        if ( $atts['is_preview'] ) {
        	echo '<script>jQuery(document).ready(function(){ etTheme.global_image_lazy();}); </script>';
        }

		wp_reset_postdata();
	    unset($et_loop['columns']);
	    unset($et_loop['loop']);
	    unset($et_loop['blog_layout']);
	    unset($et_loop['blog_align']);
	    unset($et_loop['blog_hover']);
	    unset($et_loop['size']);
	    unset($et_loop['hide_img']);
		unset($options);
		unset($atts);

		$output = ob_get_clean();
		ob_flush();

		return $output;
    }
}