<?php
include('formats.php');
include('reformat-blocks.php');
include('related-items.php');

class Make_Endpoint_For extends WP_REST_Controller {
    private $post_type;
    function __construct($post_type) {
        $this->post_type = $post_type;
    }
    /**
     * Register the routes for the objects of the controller.
     */
    public function register_custom_route($route) {
        $version = '2';
        $namespace = 'craft/v' . $version;

        register_rest_route( $namespace, '/' . $route, [
            array(
                'methods'  => WP_REST_Server::READABLE,
                'callback' => array( $this, 'get_all_items' )
            ),
        ]);

        register_rest_route( $namespace, '/' . $route . '/(?P<id>[\d]+)', [
            array(
                'methods'  => WP_REST_Server::READABLE,
                'callback' => array( $this, 'get_single_item' )
            ),
        ]);
    }
    public function get_single_item( $request ) {
        $args = array(
            'numberposts' => 1,
            'post_type' => $this->post_type
        );

        $params = $request->get_params();
        if(intval($params['limit']) > 0) { $args['numberposts'] = intval($params['limit']); }
        if(intval($params['id']) > 0) { $args['include'] = array($params['id']); }

        return new WP_REST_Response( $this->prepare_single_item_for_response($args), 200 );
    }
    public function get_all_items( $request ) {
        $args = array(
            'post_type' => $this->post_type,
            'post_status' => ['publish'],
            'posts_per_page' => -1,
            'page' => 1,
            'orderby' => 'date',
            'order' => 'DESC'
        );

        // Get parameters from request,
        // /?limit=<num>&?orderby=<str>&?order=<str>
        $params = $request->get_params();
        if(intval($params['limit']) > 0) {
            $args['posts_per_page'] = intval($params['limit']);
        }
        if(intval($params['id']) > 0) {
            $args['include'] = array($params['id']);
        }
        if(intval($params['p']) > 1) {
            $args['page'] = intval($params['p']);
            $args['offset'] = ($args['page'] * $args['posts_per_page']) - $args['posts_per_page'];
        }
        if($params['orderby']) {
            $args['orderby'] = $params['orderby'];
        }
        if($params['order']) {
            $args['order'] = $params['order'];
        }
        // Unify interface for post categories and <type> subtypes
        // See:custom-taxonomies.php for a list of custom subtypes
        if($params['type']) {
            $taxonomy_name = $this->post_type . '_type';
            if($this->post_type == 'post') { $taxonomy_name = 'category'; }
            $args['tax_query'] = array(
                [
                    'taxonomy' => $taxonomy_name,
                    'field'    => 'slug',
                    'terms'    => $params['type']
                ]
            );
        }

        return new WP_REST_Response( $this->prepare_all_items_for_response($args), 200 );
    }
    public function prepare_single_item_for_response( $args ) {
        $collection = array();
        
        // https://developer.wordpress.org/reference/functions/get_posts/
        foreach( get_posts($args) as $item ) {
            $filtered = default_post_format( $item, true );
            $filtered[galleries] = get_ids_from_gallery_block(
                parse_blocks($item->post_content)
            );
            $filtered[blocks] = parse_blocks($item->post_content);
            $filtered[attached] = get_images_from_content($item->post_content);
            $filtered[relatedto] = p2p_related_to( $item->ID, false );
            array_push($collection, $filtered);
        }
        wp_reset_postdata();

        return $collection;
    }
    public function prepare_all_items_for_response( $args ) {
        $collection = [];
        
        $q = new WP_Query( $args );

        $args['max'] = $q->max_num_pages;
        $found_posts = $q->get_posts();

        foreach( $found_posts as $post ) {
            $formatted = default_post_format( $post, false );
            $formatted[sticky] = get_post_meta( $post->ID, 'is_sticky', true );
            if($post->post_type == 'page') $formatted[content] = $post->post_content;
            
            array_push($collection, $formatted);
        }
        wp_reset_postdata();
        // Uncomment to include pagination and query information
        // $collection['_meta'] = $q;
        return $collection;
    }
}

?>