<?php

class SWER_aptools_shortcodes{

    function showsingle( $atts ){

    	extract( shortcode_atts( array(

    		'postid' => '',

    		'pageid' => '',

    		'showheader' => 'true',

    		'header' => '2',

    		'headerclass' => 'aptools-single-header',

    		'wrapper' => 'false',

    		'wrapperclass' => 'aptools-wrapper'

    	), $atts ) );

        $hopen = '<h'.$header.' class='.$headerclass.'>';

        $hclose = '</h'.$header.'>';

        if( $postid === '' && $pageid !== '' ):

            $args = array( 'page_id' => $pageid, 'posts_per_page' => 1 );

        elseif( $pageid === '' && $postid !== '' ):

            $args = array( 'p' => $postid, 'posts_per_page' => 1 );

        endif;

        $page = new WP_Query( $args );

        if( $page->have_posts() ):

            if( $wrapper !== 'false'){

                echo '<div class="'.$wrapperclass.'">';

            }

            while( $page->have_posts() ):

                $page->the_post();

                if( $showheader === 'true' ) echo $hopen . get_the_title() . $hclose;

                echo get_the_content();

            endwhile;

            if( $wrapper !== 'false'){

                echo '</div>';

            }

        endif;

        wp_reset_postdata();                

    }

    function showlist( $atts ){

    	extract( shortcode_atts( array(

    		'catid' => '',

    		'lenght' => '10',

    		'listclass' => 'aptools-list',

    		'header' => '2',

    		'headerclass' => 'aptools-list-header',

    		'excerpt' => 'false',

    		'image' => 'false',

    		'wrapper' => 'false',

    		'wrapperclass' => 'aptools-list-wrapper'

    	), $atts ) );

        $hopen = '<h'.$header.' class='.$headerclass.'>';

        $hclose = '</h'.$header.'>';

        if( $catid !== '' ):

            $args = array( 'category__in' => array($catid), 'posts_per_page' => $lenght );

        endif;

        $page = new WP_Query( $args );

        if( $page->have_posts() ):

            if( $wrapper !== 'false'){

                echo '<div class="'.$wrapperclass.'">';

            }

            echo '<ul class="'.$listclass.'">';

            while( $page->have_posts() ):

                $page->the_post();

                echo '<li>';

                echo '<a href="'.get_permalink().'">'.get_the_title().'</a>'; 

                if( $image !== 'false' && has_post_thumbnail() ){ the_post_thumbnail( $image ); }

                if( $excerpt === 'true' ) echo ' <span>'.get_the_excerpt().'</span>';

                echo '</li>';

            endwhile;

            echo '</ul>';

            if( $wrapper !== 'false'){

                echo '</div>';

            }

        endif;

        wp_reset_postdata();                

    }

    function showauto(){

        global $cat;

        $query_args = array(

            'post_type' => 'page',

            'meta_key' => 'aptools_archive_link',

            'meta_value' => $cat,

            'posts_per_page' => 1

        );

        $pages = new WP_Query( $query_args );

        if( $pages->have_posts() ):

            while( $pages->have_posts() ):

                $pages->the_post();

                echo '<h2>'.get_the_title().'</h2>';

                echo '<div class="aptools-category-content">'.get_the_content().'</div>';

            endwhile;

        endif;

        wp_reset_postdata();                

    }

}

add_shortcode( 'showsingle', array( 'SWER_aptools_shortcodes', 'showsingle' ) );

add_shortcode( 'showlist', array( 'SWER_aptools_shortcodes', 'showlist' ) );

add_shortcode( 'showauto', array( 'SWER_aptools_shortcodes', 'showauto' ) );

class SWER_aptools_admin{

    function __construct(){

        add_meta_box( 'aptools_archive_link', 'Category Pages & Posts', array( &$this, 'aptools_custom_metabox'), 'page', 'side', 'core' );        

    }

    function manage_pages_columns( $post_columns ){

        $post_columns['aptools'] = 'Category';

        return $post_columns;

    }

    function manage_pages_custom_column( $column, $post_id ){

        $selected = (int) get_post_meta( $post_id, 'aptools_archive_link', true );        

    	$category = &get_category( $selected );

    	if ( is_wp_error( $category ) ) return false;

        if( $category ):

        echo '<a 

            href="'.admin_url( 'edit-tags.php?action=edit&taxonomy=category&tag_ID='.$selected.'&post_type=post' ).'">'

            .$category->name

            .'</a>';

        endif;

    }

    function aptools_custom_metabox( $post ){

        $selected = get_post_meta( $post->ID, 'aptools_archive_link', true );

        #print_r($selected);

        wp_nonce_field( plugin_basename( __FILE__ ), 'aptools-nonce' );

        $args = array(

            'selected'          => $selected,

            'show_count'        => 0,

            'hide_empty'        => 1,

            'hierarchical'      => 1,

            'show_option_none' => '(None)',

            'name'              => 'aptools-metabox',

            'id'                => 'aptools-metabox',

            'taxonomy'          => 'category'

        );

        wp_dropdown_categories( $args );

        echo '<p>Link this page to a category, and use [showauto] shortcode in your category template to embed that page.</p>';

    }

    // update logic, same for manage_posts_custom_columns

    function save_post( $post_id ){

        if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) 

        return;

        if ( !isset($_POST[ 'aptools-nonce' ]) || !wp_verify_nonce( $_POST[ 'aptools-nonce' ], plugin_basename( __FILE__ ) ) )

        return;

        if ( 'page' == $_POST['post_type'] ){

           if ( !current_user_can( 'edit_page', $post_id ) )

               return;

         }else{

           if ( !current_user_can( 'edit_post', $post_id ) )

               return;

         }

        if( $_POST ):

        update_post_meta( $post_id, 'aptools_archive_link', $_POST['aptools-metabox'] );

        endif;

    }

    function category_add_form_fields( $tag ){

        $args = array(

            'selected'         => 0,

            'echo'             => 0,

            'name'             => 'aptools_page_id',

            'show_option_none' => '(None)'

        );

        echo '

            <div class="form-field">

            	<label for="tag-description">'._x('Category Pages & Posts', 'Category Pages & Posts').'</label>

            	'.wp_dropdown_pages( $args ).'

            	<p>'._('Link this category to a page, and use [showauto] shortcode in your category template to embed that page.').'</p>

            </div>

        ';

    }

    function category_edit_form_fields( $tag ){

        $query_args = array(

            'post_type' => 'page',

            'meta_key' => 'aptools_archive_link',

            'meta_value' => $tag->term_id,

            'posts_per_page' => 1

        );

        $selected = 0;

        $pages = new WP_Query( $query_args );

        if( $pages->have_posts() ):

            while( $pages->have_posts() ):

                $pages->the_post();       

                #echo 'This category is linked with <a href="'.admin_url('post.php?post='.get_the_ID().'&action=edit').'">'.get_the_title().'</a>';

                $selected = get_the_ID();

            endwhile;

        endif;

        $pages_args = array(

            'selected'         => $selected,

            'echo'             => 0,

            'name'             => 'aptools_page_id',

            'show_option_none' => '(None)'

        );

        echo '

        <input type="hidden" name="aptools_pre_page_id" value="'.$selected  .'" />

    	<tr class="form-field">

			<th scope="row" valign="top"><label for="aptools_page_id">Category Pages & Posts</label></th>

			<td>'.wp_dropdown_pages( $pages_args ).'<br />

			<span class="description">Link this category to a page, and use [showauto] shortcode in your category template to embed that page.</span>

			</td>

		</tr>            	

        ';

        wp_reset_postdata();

    }

    function admin_action_editedtag(){

        if( $_POST['aptools_pre_page_id'] !== $_POST['aptools_page_id'] ):            

            update_post_meta( $_POST['aptools_pre_page_id'], 'aptools_archive_link', '' );

            update_post_meta( $_POST['aptools_page_id'], 'aptools_archive_link', $_POST['tag_ID'] );

        endif;

    }

    function add_post_tag_columns($columns){

        $columns['atptools'] = 'Page';

        return $columns;

    }

    function add_post_tag_column_content($content, $column_name, $id){

        $query_args = array(

            'post_type' => 'page',

            'meta_key' => 'aptools_archive_link',

            'meta_value' => $id,

            'posts_per_page' => 1

        );

        $pages = new WP_Query( $query_args );

        if( $pages->have_posts() ):

            while( $pages->have_posts() ):

                $pages->the_post();       

                $content .= '<a href="'.admin_url('post.php?post='.get_the_ID().'&action=edit').'">'.get_the_title().'</a>';

            endwhile;

        endif;

        return $content;

    }    

}

function call_SWER_aptools_admin(){

    return new SWER_aptools_admin();

}

add_action( 'add_meta_boxes', 'call_SWER_aptools_admin' );

add_action( 'admin_action_editedtag' ,          array( 'SWER_aptools_admin', 'admin_action_editedtag' ) );

add_action( 'category_add_form_fields',         array( 'SWER_aptools_admin', 'category_add_form_fields' ) );

add_action( 'category_edit_form_fields',        array( 'SWER_aptools_admin', 'category_edit_form_fields' ) );

add_filter( 'manage_edit-category_columns',     array( 'SWER_aptools_admin', 'add_post_tag_columns' ) );

add_filter( 'manage_category_custom_column',    array( 'SWER_aptools_admin', 'add_post_tag_column_content' ), 10, 3 );

add_filter( 'manage_pages_columns',             array( 'SWER_aptools_admin', 'manage_pages_columns' ) );

add_action( 'manage_pages_custom_column',       array( 'SWER_aptools_admin', 'manage_pages_custom_column' ), 10, 2);

add_action( 'save_post',                        array( 'SWER_aptools_admin', 'save_post' ) );

?>