<?php
defined('ABSPATH') || exit;


// ------------- Custom Endpoint Start ----------

add_action( 'rest_api_init', 'ultp_register_route' );
function ultp_register_route() {
    register_rest_route( 'ultp', 'posts', array(
            'methods' => WP_REST_Server::READABLE,
            'args' => array('post_type', 'taxonomy', 'include', 'exclude', 'order', 'orderby', 'count', 'size', 'tag', 'cat', 'meta_key', 'wpnonce'),
            'callback' => 'ultp_route_post_data',
        )
    );
    register_rest_route( 'ultp', 'taxonomy', array(
            'methods' => WP_REST_Server::READABLE,
            'args' => array('taxonomy', 'wpnonce'),
            'callback' => 'ultp_route_taxonomy_data',
        )
    );
    register_rest_route( 'ultp', 'imagesize', array(
            'methods' => WP_REST_Server::READABLE,
            'args' => array('taxonomy', 'wpnonce'),
            'callback' => 'ultp_route_imagesize_data',
        )
    );
    register_rest_route( 'ultp', 'posttype', array(
            'methods' => WP_REST_Server::READABLE,
            'args' => array('wpnonce'),
            'callback' => 'ultp_route_posttype_data',
        )
    );
    register_rest_route( 'ultp', 'tax_info', array(
            'methods' => WP_REST_Server::READABLE,
            'args' => array('taxonomy', 'wpnonce'),
            'callback' => 'ultp_route_taxonomy_info_data',
        )
    );
}

function ultp_route_posttype_data() {
    if (!wp_verify_nonce($_REQUEST['wpnonce'], 'ultp-nonce') && $local){
        return ;
    }
    
    return ultimate_post()->get_post_type();
}

function ultp_route_imagesize_data() {
    if (!wp_verify_nonce($_REQUEST['wpnonce'], 'ultp-nonce') && $local){
        return ;
    }
    
    return ultimate_post()->get_image_size();
}

function ultp_route_post_data($prams,$local=false) {
    if (!wp_verify_nonce($_REQUEST['wpnonce'], 'ultp-nonce') && $local){
        return ;
    }

    // Query Builder
    $args = array(
        'post_type'     => 'post',
        'orderby'       => 'date',
        'post_status'   => 'publish',
        'order'         => 'DESC',
    );

    if(isset($prams['count'])){ $args['posts_per_page'] = esc_attr($prams['count']); }
    if(isset($prams['post_type'])){ $args['post_type'] = esc_attr( $prams['post_type'] ); }

    if(isset($prams['taxonomy'])){ // taxonomy  slug__val__slug__val
        $tax_arr = array('relation' => 'OR');
        $tax = explode('__', esc_attr($prams['taxonomy']));
        if(!empty($tax)){
            for($i=0; $i < count($tax) ; $i++){
                if($i%2 == 0){
                    $tax_arr[] = array('taxonomy'=>$tax[$i], 'field' => 'slug', 'terms' => array($tax[$i+1]));
                }
            }
        }
        if(!empty($tax_arr)){
            $args['tax_query'] = $tax_arr;
        }
    }

    if(isset($prams['include'])){ $args['post__in'] = explode('__', esc_attr($prams['include'])); }
    if(isset($prams['exclude'])){ $args['post__not_in'] = explode('__', esc_attr($prams['exclude'])); }
    if(isset($prams['orderby'])){ $args['orderby'] = esc_attr($prams['orderby']); }
    if(isset($prams['order'])){ $args['order'] = esc_attr($prams['order']); }
    if(isset($prams['offset'])){ $args['offset'] = esc_attr($prams['offset']); }
    if(isset($prams['paged'])){ $args['paged'] = esc_attr($prams['paged']); }

    if(isset($prams['orderby']) && isset($prams['meta_key'])){
        if($prams['orderby'] == 'meta_value_num') {
            $args['meta_key'] = $prams['meta_key'];
        }
    }
    
    $data = [];
    $loop = new WP_Query($args);
    
    if($loop->have_posts()){
        while($loop->have_posts()) {
            $loop->the_post(); 
            $var                = array();
            $post_id            = get_the_ID();
            $user_id            = get_the_author_meta('ID');
            $var['title']       = get_the_title();
            $var['permalink']   = get_permalink();
            $var['excerpt']     = strip_tags(get_the_content());
            $var['excerpt_full']= strip_tags(get_the_excerpt());
            $var['time']        = get_the_date();
            $var['post_time']   = human_time_diff(get_the_time('U'),current_time('U'));
            $var['view']        = get_post_meta(get_the_ID(),'__post_views_count', true);
            $var['comments']    = get_comments_number();
            $var['author_link'] = get_author_posts_url($user_id);
            $var['avatar_url']  = get_avatar_url($user_id);
            $var['display_name']= get_the_author_meta('display_name');
            $var['reading_time']= ceil(strlen(get_the_content())/1200).__(' min read', 'ultimate-post');
            
            // image
            if( has_post_thumbnail() ){
                $thumb_id = get_post_thumbnail_id($post_id);
                $image_sizes = ultimate_post()->get_image_size();
                $image_src = array();
                foreach ($image_sizes as $key => $value) {
                    $image_src[$key] = wp_get_attachment_image_src($thumb_id, $key, false)[0];
                }
                $var['image'] = $image_src;
            }

            // tag
            $tag = get_the_terms($post_id, (isset($prams['tag'])?esc_attr($prams['tag']):'post_tag'));
            if(!empty($tag)){
                $v = array();
                foreach ($tag as $val) {
                    $v[] = array('slug' => $val->slug, 'name' => $val->name, 'url' => get_term_link($val->term_id));
                }
                $var['tag'] = $v;
            }

            // cat
            $cat = get_the_terms($post_id, (isset($prams['cat'])?esc_attr($prams['cat']):'category'));
            if(!empty($cat)){
                $v = array();
                foreach ($cat as $val) {
                    $v[] = array('slug' => $val->slug, 'name' => $val->name, 'url' => get_term_link($val->term_id));
                }
                $var['category'] = $v;
            }
            $data[] = $var;
        }
        wp_reset_postdata();
    }

    return rest_ensure_response( $data );
}


function ultp_route_taxonomy_data($prams) {
    if (!wp_verify_nonce($_REQUEST['wpnonce'], 'ultp-nonce')){
        return rest_ensure_response([]);
    }
    return rest_ensure_response(ultimate_post()->taxonomy($prams['taxonomy']));
}

function ultp_route_taxonomy_info_data($prams) {
    if (!wp_verify_nonce($_REQUEST['wpnonce'], 'ultp-nonce')){
        return rest_ensure_response([]);
    }

    $data = array();
    $terms = get_terms( $prams, array(
        'hide_empty' => true,
    ));
    if( !empty($terms) ){
        foreach ($terms as $val) {
            $data['name'] = $val->name;
            $data['count'] = $val->count;
            $data['url'] = get_term_link($val->term_id);
            $data['color'] = get_term_meta($val->term_id, '_background', true);
        }
    }

    return rest_ensure_response($data);
}