<?php

class WPCOM_JSON_API_GET_Site_Endpoint extends WPCOM_JSON_API_Endpoint {

	public static $site_format = array(
 		'ID'                => '(int) Site ID',
 		'name'              => '(string) Title of site',
 		'description'       => '(string) Tagline or description of site',
 		'URL'               => '(string) Full URL to the site',
 		'jetpack'           => '(bool)  Whether the site is a Jetpack site or not',
 		'post_count'        => '(int) The number of posts the site has',
		'subscribers_count' => '(int) The number of subscribers the site has',
		'lang'              => '(string) Primary language code of the site',
		'icon'              => '(array) An array of icon formats for the site',
		'logo'              => '(array) The site logo, set in the Customizer',
		'visible'           => '(bool) If this site is visible in the user\'s site list',
		'is_private'        => '(bool) If the site is a private site or not',
		'is_following'      => '(bool) If the current user is subscribed to this site in the reader',
		'options'           => '(array) An array of options/settings for the blog. Only viewable by users with post editing rights to the site. Note: Post formats is deprecated, please see /sites/$id/post-formats/',
		'updates'           => '(array) An array of available updates for plugins, themes, wordpress, and languages.',
		'meta'              => '(object) Meta data',
	);

	// /sites/mine
	// /sites/%s -> $blog_id
	function callback( $path = '', $blog_id = 0 ) {
		global $wpdb;
		if ( 'mine' === $blog_id ) {
			$api = WPCOM_JSON_API::init();
			if ( !$api->token_details || empty( $api->token_details['blog_id'] ) ) {
				return new WP_Error( 'authorization_required', 'An active access token must be used to query information about the current blog.', 403 );
			}
			$blog_id = $api->token_details['blog_id'];
		}

		$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
		if ( is_wp_error( $blog_id ) ) {
			return $blog_id;
		}

		$response = $this->build_current_site_response();

		/** This action is documented in json-endpoints/class.wpcom-json-api-site-settings-endpoint.php */
		do_action( 'wpcom_json_api_objects', 'sites' );

		return $response;
	}

	/**
	 * Collects the necessary information to return for a site's response.
	 *
	 * @return (array)
	 */
	public function build_current_site_response( ) {

		global $wpdb, $wp_version;

		$response_format = self::$site_format;

		$is_user_logged_in = is_user_logged_in();

		$visible = array();

		if ( $is_user_logged_in ) {
			$current_user = wp_get_current_user();
			$visible = get_user_meta( $current_user->ID, 'blog_visibility', true );

			if ( !is_array( $visible ) )
				$visible = array();

		}

		$blog_id = (int) $this->api->get_blog_id_for_output();

		/** This filter is documented in class.json-api-endpoints.php */
		$is_jetpack = true === apply_filters( 'is_jetpack_site', false, $blog_id );
		$site_url = get_option( 'siteurl' );

		if ( $is_jetpack ) {
			remove_filter( 'option_stylesheet', 'fix_theme_location' );
			if ( 'https' !== parse_url( $site_url, PHP_URL_SCHEME ) ) {
				add_filter( 'set_url_scheme', array( $this, 'force_http' ), 10, 3 );
			}
		}
		foreach ( array_keys( $response_format ) as $key ) {
			switch ( $key ) {
			case 'ID' :
				$response[$key] = $blog_id;
				break;
			case 'name' :
				$response[$key] = (string) htmlspecialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES );
				break;
			case 'description' :
				$response[$key] = (string) htmlspecialchars_decode( get_bloginfo( 'description' ), ENT_QUOTES );
				break;
			case 'URL' :
				$response[$key] = (string) home_url();
				break;
			case 'jetpack' :
				$response[$key] = $is_jetpack; // jetpack magic affects this value
				break;
			case 'is_private' :
				if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
					$public_setting = get_option( 'blog_public' );
					if ( -1 == $public_setting )
						$response[$key] = true;
					else
						$response[$key] = false;
				} else {
					$response[$key] = false; // magic
				}
				break;
			case 'visible' :
				if ( $is_user_logged_in ){
					$is_visible = true;
					if ( isset( $visible[$blog_id] ) ) {
						$is_visible = (bool) $visible[$blog_id];
					}
					// null and true are visible
					$response[$key] = $is_visible;
				}
				break;
			case 'post_count' :
				if ( $is_user_logged_in )
					$response[$key] = (int) $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_status = 'publish'");
				break;
			case 'lang' :
				if ( $is_user_logged_in )
					$response[$key] = (string) get_bloginfo( 'language' );
				break;
			case 'icon' :
				if ( function_exists( 'blavatar_domain' ) && function_exists( 'blavatar_exists' ) && function_exists( 'blavatar_url' ) ) {
					$domain = blavatar_domain( home_url() );
					if ( blavatar_exists( $domain ) ) {
						$response[ $key ] = array(
							'img' => (string) remove_query_arg( 's', blavatar_url( $domain, 'img' ) ),
							'ico' => (string) remove_query_arg( 's', blavatar_url( $domain, 'ico' ) ),
						);
					} else {
                        // This is done so that we can access the updated blavatar on .com via the /me/sites endpoint
                        if( is_jetpack_site() ) {

							$site_icon_url = get_option( 'jetpack_site_icon_url' );
							if( $site_icon_url ) {
								$response[ $key ] = array(
									'img' => (string) jetpack_photon_url( $site_icon_url, array() , 'https' ),
									'ico' => (string) jetpack_photon_url( $site_icon_url, array( 'w' => 16 ), 'https' )
								);
							}
                        }
                   }
				} elseif ( function_exists( 'jetpack_site_icon_url' ) && function_exists( 'jetpack_photon_url' ) ) {
					$response[ $key ] = array(
						'img' => (string) jetpack_photon_url( jetpack_site_icon_url( get_current_blog_id() , 80 ), array( 'w' => 80 ), 'https' ),
						'ico' => (string) jetpack_photon_url( jetpack_site_icon_url( get_current_blog_id() , 16 ), array( 'w' => 16 ), 'https' ),
					);
				}
				break;
			case 'logo' :
				// Set an empty response array.
				$response[$key] = array(
					'id'  => (int) 0,
					'sizes' => array(),
					'url' => '',
				);

				// Get current site logo values.
				$logo = get_option( 'site_logo' );

				// Update the response array if there's a site logo currenty active.
				if ( $logo && 0 != $logo['id'] ) {
					$response[$key]['id']  = $logo['id'];
					$response[$key]['url'] = $logo['url'];

					foreach ( $logo['sizes'] as $size => $properties ) {
						$response[$key]['sizes'][$size] = $properties;
					}
				}
				break;
			case 'subscribers_count' :

				if ( function_exists( 'wpcom_subs_total_wpcom_subscribers' ) ) {
					$total_wpcom_subs = wpcom_subs_total_wpcom_subscribers(
						array(
							'blog_id' => $blog_id,
						)
					);
					$response[$key] = $total_wpcom_subs;
				} else {
					$response[$key] = 0; // magic
				}
				break;
			case 'is_following':
				$response[$key] = (bool) $this->api->is_following( $blog_id );
				break;
			case 'options':
				// Figure out if the blog supports VideoPress, have to do some extra checking for JP blogs
				$has_videopress = false;
				if ( get_option( 'video_upgrade' ) == '1' ) {
					$has_videopress = true;
				} else {
					if ( class_exists( 'Jetpack_Options' ) ) {
						$videopress = Jetpack_Options::get_option( 'videopress', array() );
						if ( isset( $videopress['blog_id'] ) && $videopress['blog_id'] > 0 ) {
							$has_videopress = true;
						}
					}
				}

				// deprecated - see separate endpoint. get a list of supported post formats
				$all_formats       = get_post_format_strings();
				$supported         = get_theme_support( 'post-formats' );

				$supported_formats = array();

				if ( isset( $supported[0] ) ) {
					foreach ( $supported[0] as $format ) {
						$supported_formats[ $format ] = $all_formats[ $format ];
					}
				}

				// determine if sharing buttons should be visible by default
				$default_sharing_status = false;
				if ( class_exists( 'Sharing_Service' ) ) {
					$ss                     = new Sharing_Service();
					$blog_services          = $ss->get_blog_services();
					$default_sharing_status = ! empty( $blog_services['visible'] );
				}

				$is_mapped_domain = false;

				if ( function_exists( 'get_primary_redirect' ) ) {
					$primary_redirect = strtolower( get_primary_redirect() );
					if ( false === strpos( $primary_redirect, '.wordpress.com' ) ) {
						$is_mapped_domain = true;
					}
				}

				$is_redirect = false;

				if ( function_exists( 'get_primary_domain_mapping_record' ) ) {
					if ( get_primary_domain_mapping_record()->type == 1 ) {
						$is_redirect = true;
					}
				}

				if ( function_exists( 'get_mime_types' ) ) {
					$allowed_file_types = get_mime_types();
				} else {
					// http://codex.wordpress.org/Uploading_Files
					$mime_types = get_allowed_mime_types();
					foreach ( $mime_types as $type => $mime_type ) {
						$extras = explode( '|', $type );
						foreach ( $extras as $extra ) {
							$allowed_file_types[] = $extra;
						}
					}
				}

				if ( function_exists( 'get_blog_details' ) ) {
					$blog_details = get_blog_details();
					if ( ! empty( $blog_details->registered ) ) {
						$registered_date = $blog_details->registered;
					}
				}

				$upgraded_filetypes_enabled = false;
				if ( $is_jetpack || get_option( 'use_upgraded_upload_filetypes' ) ) {
					$upgraded_filetypes_enabled = true;
				}

				$wordads = false;
				if ( function_exists( 'has_any_blog_stickers' ) ) {
					$wordads = has_any_blog_stickers( array( 'wordads-approved', 'wordads-approved-misfits' ), $blog_id );
				}

				$publicize_permanently_disabled = false;
				if ( function_exists( 'is_publicize_permanently_disabled' ) ) {
					$publicize_permanently_disabled = is_publicize_permanently_disabled( $blog_id );
				}

				$response[$key] = array(
					'timezone'                => (string) get_option( 'timezone_string' ),
					'gmt_offset'              => (float) get_option( 'gmt_offset' ),
					'videopress_enabled'      => $has_videopress,
					'upgraded_filetypes_enabled' =>  $upgraded_filetypes_enabled,
					'login_url'               => wp_login_url(),
					'admin_url'               => get_admin_url(),
					'is_mapped_domain'        => $is_mapped_domain,
					'is_redirect'             => $is_redirect,
					'unmapped_url'            => get_site_url( $blog_id ),
					'featured_images_enabled' => current_theme_supports( 'post-thumbnails' ),
					'theme_slug'              => get_option( 'stylesheet' ),
					'header_image'            => get_theme_mod( 'header_image_data' ),
					'background_color'        => get_theme_mod( 'background_color' ),
					'image_default_link_type' => get_option( 'image_default_link_type' ),
					'image_thumbnail_width'   => (int)  get_option( 'thumbnail_size_w' ),
					'image_thumbnail_height'  => (int)  get_option( 'thumbnail_size_h' ),
					'image_thumbnail_crop'    => get_option( 'thumbnail_crop' ),
					'image_medium_width'      => (int)  get_option( 'medium_size_w' ),
					'image_medium_height'     => (int)  get_option( 'medium_size_h' ),
					'image_large_width'       => (int)  get_option( 'large_size_w' ),
					'image_large_height'      => (int) get_option( 'large_size_h' ),
					'permalink_structure'     => get_option( 'permalink_structure' ),
					'post_formats'            => $supported_formats,
					'default_post_format'     => get_option( 'default_post_format' ),
					'default_category'        => (int) get_option( 'default_category' ),
					'allowed_file_types'      => $allowed_file_types,
					'show_on_front'           => get_option( 'show_on_front' ),
					/** This filter is documented in modules/likes.php */
					'default_likes_enabled'   => (bool) apply_filters( 'wpl_is_enabled_sitewide', ! get_option( 'disabled_likes' ) ),
					'default_sharing_status'  => (bool) $default_sharing_status,
					'default_comment_status'  => ( 'closed' == get_option( 'default_comment_status' ) ? false : true ),
					'default_ping_status'     => ( 'closed' == get_option( 'default_ping_status' ) ? false : true ),
					'software_version'        => $wp_version,
					'created_at'              => ! empty( $registered_date ) ? $this->format_date( $registered_date ) : '0000-00-00T00:00:00+00:00',
					'wordads'                 => $wordads,
					'publicize_permanently_disabled' => $publicize_permanently_disabled,
				);

				if ( 'page' === get_option( 'show_on_front' ) ) {
					$response['options']['page_on_front'] = (int) get_option( 'page_on_front' );
					$response['options']['page_for_posts'] = (int) get_option( 'page_for_posts' );
				}

				if ( $is_jetpack ) {
					$response['options']['jetpack_version'] = get_option( 'jetpack_version' );

					if ( get_option( 'jetpack_main_network_site' ) ) {
						$response['options']['main_network_site'] = (string) rtrim( get_option( 'jetpack_main_network_site' ), '/' );
					}

					if ( is_array( Jetpack_Options::get_option( 'active_modules' ) ) ) {
						$response['options']['active_modules'] = (array) array_values( Jetpack_Options::get_option( 'active_modules' ) );
					}

					if ( $jetpack_wp_version = get_option( 'jetpack_wp_version' ) ) {
						$response['options']['software_version'] = (string) $jetpack_wp_version;
					} else if ( $jetpack_update = get_option( 'jetpack_updates' ) ) {
						if ( is_array( $jetpack_update ) && isset( $jetpack_update['wp_version'] ) ) {
							$response['options']['software_version'] = (string) $jetpack_update['wp_version'];
						} else {
							$response[ 'options' ][ 'software_version' ] = null;
						}
					} else {
						$response['options']['software_version'] = null;
					}

					$response['options']['max_upload_size'] = get_option( 'jetpack_max_upload_size', false );

					// Sites have to prove that they are not main_network site.
					// If the sync happends right then we should be able to see that we are not dealing with a network site
					$response['options']['is_multi_network'] = (bool) get_option( 'jetpack_is_main_network', true  );
					$response['options']['is_multi_site'] = (bool) get_option( 'jetpack_is_multi_site', true );

					$file_mod_denied_reason = array();
					$file_mod_denied_reason['automatic_updater_disabled'] = (bool) get_option( 'jetpack_constant_AUTOMATIC_UPDATER_DISABLED' );

					// WP AUTO UPDATE CORE defaults to minor, '1' if true and '0' if set to false.
					$file_mod_denied_reason['wp_auto_update_core_disabled'] =  ! ( (bool) get_option( 'jetpack_constant_WP_AUTO_UPDATE_CORE', 'minor' ) );
					$file_mod_denied_reason['is_version_controlled'] = (bool) get_option( 'jetpack_is_version_controlled' );

					// By default we assume that site does have system write access if the value is not set yet.
					$file_mod_denied_reason['has_no_file_system_write_access'] = ! (bool)( get_option( 'jetpack_has_file_system_write_access', true ) );

					$file_mod_denied_reason['disallow_file_mods'] = (bool) get_option( 'jetpack_constant_DISALLOW_FILE_MODS' );

					$file_mod_disabled_reasons = array();
					foreach( $file_mod_denied_reason as $reason => $set ) {
						if ( $set ) {
							$file_mod_disabled_reasons[] = $reason;
						}
					}
					$response['options']['file_mod_disabled'] = empty( $file_mod_disabled_reasons ) ? false : $file_mod_disabled_reasons;
				}

				if ( ! current_user_can( 'edit_posts' ) )
					unset( $response[$key] );
				break;
			case 'meta' :
				/**
				 * Filters the URL scheme used when querying your site's REST API endpoint.
				 *
				 * @module json-api
				 *
				 * @since 3.2.0
				 *
				 * @param string parse_url( get_option( 'home' ), PHP_URL_SCHEME ) URL scheme parsed from home URL.
				 */
				$xmlrpc_scheme = apply_filters( 'wpcom_json_api_xmlrpc_scheme', parse_url( get_option( 'home' ), PHP_URL_SCHEME ) );
				$xmlrpc_url = site_url( 'xmlrpc.php', $xmlrpc_scheme );
				$response[$key] = (object) array(
					'links' => (object) array(
						'self'     => (string) $this->get_site_link( $blog_id ),
						'help'     => (string) $this->get_site_link( $blog_id, 'help'      ),
						'posts'    => (string) $this->get_site_link( $blog_id, 'posts/'    ),
						'comments' => (string) $this->get_site_link( $blog_id, 'comments/' ),
						'xmlrpc'   => (string) $xmlrpc_url,
					),
				);
				break;
			}
		}

		if ( $is_jetpack ) {

			// Add the updates only make them visible if the user has manage options permission.
			$jetpack_update = (array) get_option( 'jetpack_updates' );
			if ( ! empty( $jetpack_update ) && current_user_can( 'manage_options' ) ) {

				if ( isset( $jetpack_update['wp_version'] ) ) {
					// In previous version of Jetpack 3.4, 3.5, 3.6 we synced the wp_version into to jetpack_updates
					unset( $jetpack_update['wp_version'] );
				}

				if ( isset( $jetpack_update['site_is_version_controlled'] ) ) {
					// In previous version of Jetpack 3.4, 3.5, 3.6 we synced the site_is_version_controlled into to jetpack_updates
					unset( $jetpack_update['site_is_version_controlled'] );
				}

				$response['updates'] = (array) $jetpack_update;
			}

			add_filter( 'option_stylesheet', 'fix_theme_location' );
			if ( 'https' !== parse_url( $site_url, PHP_URL_SCHEME ) ) {
				remove_filter( 'set_url_scheme', array( $this, 'force_http' ), 10, 3 );
			}
		}

		return $response;

	}

	function force_http( $url, $scheme, $orig_scheme ) {
		return preg_replace('/^https:\/\//', 'http://', $url, 1 );
	}

}

class WPCOM_JSON_API_List_Post_Formats_Endpoint extends WPCOM_JSON_API_Endpoint {
	// /sites/%s/post-formats -> $blog_id
	function callback( $path = '', $blog_id = 0 ) {
		$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
		if ( is_wp_error( $blog_id ) ) {
			return $blog_id;
		}

		if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
			$this->load_theme_functions();
		}

		// Get a list of supported post formats.
		$all_formats = get_post_format_strings();
		$supported   = get_theme_support( 'post-formats' );

		$supported_formats = $response['formats'] = array();

		if ( isset( $supported[0] ) ) {
			foreach ( $supported[0] as $format ) {
				$supported_formats[ $format ] = $all_formats[ $format ];
			}
		}

		$response['formats'] = (object) $supported_formats;

		return $response;
	}
}

class WPCOM_JSON_API_List_Page_Templates_Endpoint extends WPCOM_JSON_API_Endpoint {
	// /sites/%s/page-templates -> $blog_id
	function callback( $path = '', $blog_id = 0 ) {
		$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
		if ( is_wp_error( $blog_id ) ) {
			return $blog_id;
		}

		if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
			$this->load_theme_functions();
		}

		$response = array();
		$page_templates = array();

		$templates = get_page_templates();
		ksort( $templates );

		foreach ( array_keys( $templates ) as $label ) {
			$page_templates[] = array(
				'label' => $label,
				'file'  => $templates[ $label ]
			);
		}

		$response['templates'] = $page_templates;

		return $response;
	}
}

class WPCOM_JSON_API_List_Post_Types_Endpoint extends WPCOM_JSON_API_Endpoint {
	static $post_type_keys_to_include = array(
		'name'         => 'name',
		'label'        => 'label',
		'labels'       => 'labels',
		'description'  => 'description',
		'map_meta_cap' => 'map_meta_cap',
		'cap'          => 'capabilities',
	);

	// /sites/%s/post-types -> $blog_id
	function callback( $path = '', $blog_id = 0 ) {
		$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
		if ( is_wp_error( $blog_id ) ) {
			return $blog_id;
		}

		if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
			$this->load_theme_functions();
		}

		$args = $this->query_args();
		$queryable_only = isset( $args['api_queryable'] ) && $args['api_queryable'];

		// Get a list of available post types
		$post_types = get_post_types( array( 'public' => true ) );
		$formatted_post_type_objects = array();

		// Retrieve post type object for each post type
		foreach ( $post_types as $post_type ) {
			// Skip non-queryable if filtering on queryable only
			$is_queryable = $this->is_post_type_allowed( $post_type );
			if ( $queryable_only && ! $is_queryable ) {
				continue;
			}

			$post_type_object = get_post_type_object( $post_type );
			$formatted_post_type_object = array();

			// Include only the desired keys in the response
			foreach ( self::$post_type_keys_to_include as $key => $value ) {
				$formatted_post_type_object[ $value ] = $post_type_object->{ $key };
			}
			$formatted_post_type_object['api_queryable'] = $is_queryable;
			$formatted_post_type_object['supports'] = get_all_post_type_supports( $post_type );
			if ( $this->post_type_supports_tags( $post_type ) ) {
				$formatted_post_type_object['supports']['tags'] = true;
			}
			$formatted_post_type_objects[] = $formatted_post_type_object;
		}

		return array(
			'found' => count( $formatted_post_type_objects ),
			'post_types' => $formatted_post_type_objects
		);
	}

	function post_type_supports_tags( $post_type ) {
		if ( in_array( 'post_tag', get_object_taxonomies( $post_type ) ) ) {
			return true;
		}

		// the featured content module adds post_tag support
		// to the post types that are registered for it
		// however it does so in a way that isn't available
		// to get_object_taxonomies
		$featured_content = get_theme_support( 'featured-content' );
		if ( ! $featured_content || empty( $featured_content[0] ) || empty( $featured_content[0]['post_types'] ) ) {
			return false;
		}

		return in_array( $post_type, $featured_content[0]['post_types'] );
	}
}
