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<?php
namespace Automattic\WooCommerce\Blueprint\Schemas;
use Automattic\WooCommerce\Blueprint\UseWPFunctions;
/**
* Class JsonSchema
*/
class JsonSchema {
use UseWPFunctions;
/**
* The schema.
*
* @var object The schema.
*/
protected $schema;
/**
* JsonSchema constructor.
*
* @param string $json_path The path to the JSON file.
*
* @throws \RuntimeException If the JSON file cannot be read.
* @throws \InvalidArgumentException If the JSON is invalid or missing 'steps' field.
*/
public function __construct( $json_path ) {
$real_path = realpath( $json_path );
if ( false === $real_path ) {
throw new \InvalidArgumentException( 'Invalid schema path' );
}
$contents = $this->wp_filesystem_get_contents( $real_path );
if ( false === $contents ) {
throw new \RuntimeException( "Failed to read the JSON file at {$real_path}." );
}
$schema = json_decode( $contents );
$this->schema = $schema;
if ( ! $this->validate() ) {
throw new \InvalidArgumentException( "Invalid JSON or missing 'steps' field." );
}
}
/**
* Returns the steps from the schema.
*
* @return array
*/
public function get_steps() {
return $this->schema->steps;
}
/**
* Returns steps by name.
*
* @param string $name The name of the step.
*
* @return array
*/
public function get_step( $name ) {
$steps = array();
foreach ( $this->schema->steps as $step ) {
if ( $step->step === $name ) {
$steps[] = $step;
}
}
return $steps;
}
/**
* Just makes sure that the JSON contains 'steps' field.
*
* We're going to validate 'steps' later because we can't know the exact schema
* ahead of time. 3rd party plugins can add their step processors.
*
* @return bool[
*/
public function validate() {
if ( json_last_error() !== JSON_ERROR_NONE ) {
return false;
}
if ( ! isset( $this->schema->steps ) || ! is_array( $this->schema->steps ) ) {
return false;
}
return true;
}
}
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