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<?php
/**
* REST API Performance indicators controller
*
* Handles requests to the /reports/store-performance endpoint.
*/
namespace Automattic\WooCommerce\Admin\API\Reports\PerformanceIndicators;
use \Automattic\WooCommerce\Admin\API\Reports\TimeInterval;
defined( 'ABSPATH' ) || exit;
/**
* REST API Reports Performance indicators controller class.
*
* @extends WC_REST_Reports_Controller
*/
class Controller extends \WC_REST_Reports_Controller {
/**
* Endpoint namespace.
*
* @var string
*/
protected $namespace = 'wc-analytics';
/**
* Route base.
*
* @var string
*/
protected $rest_base = 'reports/performance-indicators';
/**
* Contains a list of endpoints by report slug.
*
* @var array
*/
protected $endpoints = array();
/**
* Contains a list of active Jetpack module slugs.
*
* @var array
*/
protected $active_jetpack_modules = null;
/**
* Contains a list of allowed stats.
*
* @var array
*/
protected $allowed_stats = array();
/**
* Contains a list of stat labels.
*
* @var array
*/
protected $labels = array();
/**
* Contains a list of endpoints by url.
*
* @var array
*/
protected $urls = array();
/**
* Contains a cache of retrieved stats data, grouped by report slug.
*
* @var array
*/
protected $stats_data = array();
/**
* Constructor.
*/
public function __construct() {
add_filter( 'woocommerce_rest_performance_indicators_data_value', array( $this, 'format_data_value' ), 10, 5 );
}
/**
* Register the routes for reports.
*/
public function register_routes() {
register_rest_route(
$this->namespace,
'/' . $this->rest_base,
array(
array(
'methods' => \WP_REST_Server::READABLE,
'callback' => array( $this, 'get_items' ),
'permission_callback' => array( $this, 'get_items_permissions_check' ),
'args' => $this->get_collection_params(),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/allowed',
array(
array(
'methods' => \WP_REST_Server::READABLE,
'callback' => array( $this, 'get_allowed_items' ),
'permission_callback' => array( $this, 'get_items_permissions_check' ),
'args' => $this->get_collection_params(),
),
'schema' => array( $this, 'get_public_allowed_item_schema' ),
)
);
}
/**
* Maps query arguments from the REST request.
*
* @param array $request Request array.
* @return array
*/
protected function prepare_reports_query( $request ) {
$args = array();
$args['before'] = $request['before'];
$args['after'] = $request['after'];
$args['stats'] = $request['stats'];
return $args;
}
/**
* Get analytics report data and endpoints.
*/
public function get_analytics_report_data() {
$request = new \WP_REST_Request( 'GET', '/wc-analytics/reports' );
$response = rest_do_request( $request );
if ( is_wp_error( $response ) ) {
return $response;
}
if ( 200 !== $response->get_status() ) {
return new \WP_Error( 'woocommerce_analytics_performance_indicators_result_failed', __( 'Sorry, fetching performance indicators failed.', 'woocommerce' ) );
}
$endpoints = $response->get_data();
foreach ( $endpoints as $endpoint ) {
if ( '/stats' === substr( $endpoint['slug'], -6 ) ) {
$request = new \WP_REST_Request( 'OPTIONS', $endpoint['path'] );
$response = rest_do_request( $request );
if ( is_wp_error( $response ) ) {
return $response;
}
$data = $response->get_data();
$prefix = substr( $endpoint['slug'], 0, -6 );
if ( empty( $data['schema']['properties']['totals']['properties'] ) ) {
continue;
}
foreach ( $data['schema']['properties']['totals']['properties'] as $property_key => $schema_info ) {
if ( empty( $schema_info['indicator'] ) || ! $schema_info['indicator'] ) {
continue;
}
$stat = $prefix . '/' . $property_key;
$this->allowed_stats[] = $stat;
$stat_label = empty( $schema_info['title'] ) ? $schema_info['description'] : $schema_info['title'];
$this->labels[ $stat ] = trim( $stat_label, '.' );
$this->formats[ $stat ] = isset( $schema_info['format'] ) ? $schema_info['format'] : 'number';
}
$this->endpoints[ $prefix ] = $endpoint['path'];
$this->urls[ $prefix ] = $endpoint['_links']['report'][0]['href'];
}
}
}
/**
* Get active Jetpack modules.
*
* @return array List of active Jetpack module slugs.
*/
public function get_active_jetpack_modules() {
if ( is_null( $this->active_jetpack_modules ) ) {
if ( class_exists( '\Jetpack' ) && method_exists( '\Jetpack', 'get_active_modules' ) ) {
$active_modules = \Jetpack::get_active_modules();
$this->active_jetpack_modules = is_array( $active_modules ) ? $active_modules : array();
} else {
$this->active_jetpack_modules = array();
}
}
return $this->active_jetpack_modules;
}
/**
* Set active Jetpack modules.
*
* @param array $modules List of active Jetpack module slugs.
*/
public function set_active_jetpack_modules( $modules ) {
$this->active_jetpack_modules = $modules;
}
/**
* Get active Jetpack modules and endpoints.
*/
public function get_jetpack_modules_data() {
$active_modules = $this->get_active_jetpack_modules();
if ( empty( $active_modules ) ) {
return;
}
$items = apply_filters(
'woocommerce_rest_performance_indicators_jetpack_items',
array(
'stats/visitors' => array(
'label' => __( 'Visitors', 'woocommerce' ),
'permission' => 'view_stats',
'format' => 'number',
'module' => 'stats',
),
'stats/views' => array(
'label' => __( 'Views', 'woocommerce' ),
'permission' => 'view_stats',
'format' => 'number',
'module' => 'stats',
),
)
);
foreach ( $items as $item_key => $item ) {
if ( ! in_array( $item['module'], $active_modules, true ) ) {
return;
}
if ( $item['permission'] && ! current_user_can( $item['permission'] ) ) {
return;
}
$stat = 'jetpack/' . $item_key;
$endpoint = 'jetpack/' . $item['module'];
$this->allowed_stats[] = $stat;
$this->labels[ $stat ] = $item['label'];
$this->endpoints[ $endpoint ] = '/jetpack/v4/module/' . $item['module'] . '/data';
$this->formats[ $stat ] = $item['format'];
}
$this->urls['jetpack/stats'] = '/jetpack';
}
/**
* Get information such as allowed stats, stat labels, and endpoint data from stats reports.
*
* @return WP_Error|True
*/
private function get_indicator_data() {
// Data already retrieved.
if ( ! empty( $this->endpoints ) && ! empty( $this->labels ) && ! empty( $this->allowed_stats ) ) {
return true;
}
$this->get_analytics_report_data();
$this->get_jetpack_modules_data();
return true;
}
/**
* Returns a list of allowed performance indicators.
*
* @param WP_REST_Request $request Request data.
* @return array|WP_Error
*/
public function get_allowed_items( $request ) {
$indicator_data = $this->get_indicator_data();
if ( is_wp_error( $indicator_data ) ) {
return $indicator_data;
}
$data = array();
foreach ( $this->allowed_stats as $stat ) {
$pieces = $this->get_stats_parts( $stat );
$report = $pieces[0];
$chart = $pieces[1];
$data[] = (object) array(
'stat' => $stat,
'chart' => $chart,
'label' => $this->labels[ $stat ],
);
}
usort( $data, array( $this, 'sort' ) );
$objects = array();
foreach ( $data as $item ) {
$prepared = $this->prepare_item_for_response( $item, $request );
$objects[] = $this->prepare_response_for_collection( $prepared );
}
$response = rest_ensure_response( $objects );
$response->header( 'X-WP-Total', count( $data ) );
$response->header( 'X-WP-TotalPages', 1 );
$base = add_query_arg( $request->get_query_params(), rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ) );
return $response;
}
/**
* Sorts the list of stats. Sorted by custom arrangement.
*
* @see https://github.com/woocommerce/woocommerce-admin/issues/1282
* @param object $a First item.
* @param object $b Second item.
* @return order
*/
public function sort( $a, $b ) {
/**
* Custom ordering for store performance indicators.
*
* @see https://github.com/woocommerce/woocommerce-admin/issues/1282
* @param array $indicators A list of ordered indicators.
*/
$stat_order = apply_filters(
'woocommerce_rest_report_sort_performance_indicators',
array(
'revenue/total_sales',
'revenue/net_revenue',
'orders/orders_count',
'orders/avg_order_value',
'products/items_sold',
'revenue/refunds',
'coupons/orders_count',
'coupons/amount',
'taxes/total_tax',
'taxes/order_tax',
'taxes/shipping_tax',
'revenue/shipping',
'downloads/download_count',
)
);
$a = array_search( $a->stat, $stat_order, true );
$b = array_search( $b->stat, $stat_order, true );
if ( false === $a && false === $b ) {
return 0;
} elseif ( false === $a ) {
return 1;
} elseif ( false === $b ) {
return -1;
} else {
return $a - $b;
}
}
/**
* Get report stats data, avoiding duplicate requests for stats that use the same endpoint.
*
* @param string $report Report slug to request data for.
* @param array $query_args Report query args.
* @return WP_REST_Response|WP_Error Report stats data.
*/
public function get_stats_data( $report, $query_args ) {
// Return from cache if we've already requested these report stats.
if ( isset( $this->stats_data[ $report ] ) ) {
return $this->stats_data[ $report ];
}
// Request the report stats.
$request_url = $this->endpoints[ $report ];
$request = new \WP_REST_Request( 'GET', $request_url );
$request->set_param( 'before', $query_args['before'] );
$request->set_param( 'after', $query_args['after'] );
$response = rest_do_request( $request );
// Cache the response.
$this->stats_data[ $report ] = $response;
return $response;
}
/**
* Get all reports.
*
* @param WP_REST_Request $request Request data.
* @return array|WP_Error
*/
public function get_items( $request ) {
$indicator_data = $this->get_indicator_data();
if ( is_wp_error( $indicator_data ) ) {
return $indicator_data;
}
$query_args = $this->prepare_reports_query( $request );
if ( empty( $query_args['stats'] ) ) {
return new \WP_Error( 'woocommerce_analytics_performance_indicators_empty_query', __( 'A list of stats to query must be provided.', 'woocommerce' ), 400 );
}
$stats = array();
foreach ( $query_args['stats'] as $stat ) {
$is_error = false;
$pieces = $this->get_stats_parts( $stat );
$report = $pieces[0];
$chart = $pieces[1];
if ( ! in_array( $stat, $this->allowed_stats, true ) ) {
continue;
}
$response = $this->get_stats_data( $report, $query_args );
if ( is_wp_error( $response ) ) {
return $response;
}
$data = $response->get_data();
$format = $this->formats[ $stat ];
$label = $this->labels[ $stat ];
if ( 200 !== $response->get_status() ) {
$stats[] = (object) array(
'stat' => $stat,
'chart' => $chart,
'label' => $label,
'format' => $format,
'value' => null,
);
continue;
}
$stats[] = (object) array(
'stat' => $stat,
'chart' => $chart,
'label' => $label,
'format' => $format,
'value' => apply_filters( 'woocommerce_rest_performance_indicators_data_value', $data, $stat, $report, $chart, $query_args ),
);
}
usort( $stats, array( $this, 'sort' ) );
$objects = array();
foreach ( $stats as $stat ) {
$data = $this->prepare_item_for_response( $stat, $request );
$objects[] = $this->prepare_response_for_collection( $data );
}
$response = rest_ensure_response( $objects );
$response->header( 'X-WP-Total', count( $stats ) );
$response->header( 'X-WP-TotalPages', 1 );
$base = add_query_arg( $request->get_query_params(), rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ) );
return $response;
}
/**
* Prepare a report object for serialization.
*
* @param stdClass $stat_data Report data.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response
*/
public function prepare_item_for_response( $stat_data, $request ) {
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->add_additional_fields_to_object( $stat_data, $request );
$data = $this->filter_response_by_context( $data, $context );
// Wrap the data in a response object.
$response = rest_ensure_response( $data );
$response->add_links( $this->prepare_links( $data ) );
/**
* Filter a report returned from the API.
*
* Allows modification of the report data right before it is returned.
*
* @param WP_REST_Response $response The response object.
* @param object $report The original report object.
* @param WP_REST_Request $request Request used to generate the response.
*/
return apply_filters( 'woocommerce_rest_prepare_report_performance_indicators', $response, $stat_data, $request );
}
/**
* Prepare links for the request.
*
* @param \Automattic\WooCommerce\Admin\API\Reports\Query $object Object data.
* @return array
*/
protected function prepare_links( $object ) {
$pieces = $this->get_stats_parts( $object->stat );
$endpoint = $pieces[0];
$stat = $pieces[1];
$url = isset( $this->urls[ $endpoint ] ) ? $this->urls[ $endpoint ] : '';
$links = array(
'api' => array(
'href' => rest_url( $this->endpoints[ $endpoint ] ),
),
'report' => array(
'href' => $url,
),
);
return $links;
}
/**
* Returns the endpoint part of a stat request (prefix) and the actual stat total we want.
* To allow extensions to namespace (example: fue/emails/sent), we break on the last forward slash.
*
* @param string $full_stat A stat request string like orders/avg_order_value or fue/emails/sent.
* @return array Containing the prefix (endpoint) and suffix (stat).
*/
private function get_stats_parts( $full_stat ) {
$endpoint = substr( $full_stat, 0, strrpos( $full_stat, '/' ) );
$stat = substr( $full_stat, ( strrpos( $full_stat, '/' ) + 1 ) );
return array(
$endpoint,
$stat,
);
}
/**
* Format the data returned from the API for given stats.
*
* @param array $data Data from external endpoint.
* @param string $stat Name of the stat.
* @param string $report Name of the report.
* @param string $chart Name of the chart.
* @param array $query_args Query args.
* @return mixed
*/
public function format_data_value( $data, $stat, $report, $chart, $query_args ) {
if ( 'jetpack/stats' === $report ) {
// Get the index of the field to tally.
$index = array_search( $chart, $data['general']->visits->fields, true );
if ( ! $index ) {
return null;
}
// Loop over provided data and filter by the queried date.
// Note that this is currently limited to 30 days via the Jetpack API
// but the WordPress.com endpoint allows up to 90 days.
$total = 0;
$before = gmdate( 'Y-m-d', strtotime( isset( $query_args['before'] ) ? $query_args['before'] : TimeInterval::default_before() ) );
$after = gmdate( 'Y-m-d', strtotime( isset( $query_args['after'] ) ? $query_args['after'] : TimeInterval::default_after() ) );
foreach ( $data['general']->visits->data as $datum ) {
if ( $datum[0] >= $after && $datum[0] <= $before ) {
$total += $datum[ $index ];
}
}
return $total;
}
if ( isset( $data['totals'] ) && isset( $data['totals'][ $chart ] ) ) {
return $data['totals'][ $chart ];
}
return null;
}
/**
* Get the Report's schema, conforming to JSON Schema.
*
* @return array
*/
public function get_item_schema() {
$indicator_data = $this->get_indicator_data();
if ( is_wp_error( $indicator_data ) ) {
$allowed_stats = array();
} else {
$allowed_stats = $this->allowed_stats;
}
$schema = array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'title' => 'report_performance_indicator',
'type' => 'object',
'properties' => array(
'stat' => array(
'description' => __( 'Unique identifier for the resource.', 'woocommerce' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
'readonly' => true,
'enum' => $allowed_stats,
),
'chart' => array(
'description' => __( 'The specific chart this stat referrers to.', 'woocommerce' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'label' => array(
'description' => __( 'Human readable label for the stat.', 'woocommerce' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'format' => array(
'description' => __( 'Format of the stat.', 'woocommerce' ),
'type' => 'number',
'context' => array( 'view', 'edit' ),
'readonly' => true,
'enum' => array( 'number', 'currency' ),
),
'value' => array(
'description' => __( 'Value of the stat. Returns null if the stat does not exist or cannot be loaded.', 'woocommerce' ),
'type' => 'number',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
),
);
return $this->add_additional_fields_schema( $schema );
}
/**
* Get schema for the list of allowed performance indicators.
*
* @return array $schema
*/
public function get_public_allowed_item_schema() {
$schema = $this->get_public_item_schema();
unset( $schema['properties']['value'] );
unset( $schema['properties']['format'] );
return $schema;
}
/**
* Get the query params for collections.
*
* @return array
*/
public function get_collection_params() {
$indicator_data = $this->get_indicator_data();
if ( is_wp_error( $indicator_data ) ) {
$allowed_stats = __( 'There was an issue loading the report endpoints', 'woocommerce' );
} else {
$allowed_stats = implode( ', ', $this->allowed_stats );
}
$params = array();
$params['context'] = $this->get_context_param( array( 'default' => 'view' ) );
$params['stats'] = array(
'description' => sprintf(
/* translators: Allowed values is a list of stat endpoints. */
__( 'Limit response to specific report stats. Allowed values: %s.', 'woocommerce' ),
$allowed_stats
),
'type' => 'array',
'validate_callback' => 'rest_validate_request_arg',
'items' => array(
'type' => 'string',
'enum' => $this->allowed_stats,
),
'default' => $this->allowed_stats,
);
$params['after'] = array(
'description' => __( 'Limit response to resources published after a given ISO8601 compliant date.', 'woocommerce' ),
'type' => 'string',
'format' => 'date-time',
'validate_callback' => 'rest_validate_request_arg',
);
$params['before'] = array(
'description' => __( 'Limit response to resources published before a given ISO8601 compliant date.', 'woocommerce' ),
'type' => 'string',
'format' => 'date-time',
'validate_callback' => 'rest_validate_request_arg',
);
return $params;
}
}