<?php

/**
 * Register an API route for /comic but re-use the inbuilt
 * callback for getting posts ( WP_JSON_API_Posts::get )
 */
register_api_route( 'jetpack', 1.0, '/comic', array(
    'callback' => array( 'WP_JSON_API_Posts', 'get' ),
    'methods'  => array( 'GET' ),
    'args'     => array(
        'page' => array(
            'required' => false
        ),
        'per_page' => array(
            'required' => false
        )
    ),
) );

/**
 * Register an API route for /comic and use a closure as the callback
 * Simple.
 */
register_api_route( 'jetpack', 1.0, '/comic', array(
    'callback' => function( $args ) {

        return array( array( 'id' => 1, 'name' => 'Hello' ) );
    },
    'methods'  => array( 'GET' ),
    'args'     => array(
        'page' => array(
            'required' => false
        ),
        'per_page' => array(
            'required' => false
        )
    )
) );

/**
 * Register an API route for a deleteing a single comic,
 * but re-use the method from core.
 */
register_api_route( 'jetpack', 1.0, '/comic/(?P<post_id>)', array(
    'callback' => array( 'WP_JSON_API_Posts', 'delete' ),
    'methods'  => array( 'DELETE' )
) );

/**
 * Register an API route for updating a single comic,
 * do some stuff and internally re-use the API's post update method.
 *
 * Also, perhaps some crazy way to re-use arguments from an existing route.
 */
register_api_route( 'jetpack', 1.0, '/comic/(?P<post_id>)', array(
    'callback' => function( $args ) {

        if ( 1 == 2 ) {
            return new WP_Error( 403 );
        }

        WP_JSON_API_Posts::update( $args );
    }
    'methods'  => array( 'POST' ),
    'args'     => WP_JSON_API::route( 'wp.post-update' )->args
) );