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<?php
namespace GuzzleHttp\Event;
/**
* Contains methods used to manage the request event lifecycle.
*/
final class RequestEvents
{
// Generic event priorities
const EARLY = 10000;
const LATE = -10000;
// "before" priorities
const PREPARE_REQUEST = -100;
const SIGN_REQUEST = -10000;
// "complete" and "error" response priorities
const VERIFY_RESPONSE = 100;
const REDIRECT_RESPONSE = 200;
/**
* Converts an array of event options into a formatted array of valid event
* configuration.
*
* @param array $options Event array to convert
* @param array $events Event names to convert in the options array.
* @param mixed $handler Event handler to utilize
*
* @return array
* @throws \InvalidArgumentException if the event config is invalid
* @internal
*/
public static function convertEventArray(
array $options,
array $events,
$handler
) {
foreach ($events as $name) {
if (!isset($options[$name])) {
$options[$name] = [$handler];
} elseif (is_callable($options[$name])) {
$options[$name] = [$options[$name], $handler];
} elseif (is_array($options[$name])) {
if (isset($options[$name]['fn'])) {
$options[$name] = [$options[$name], $handler];
} else {
$options[$name][] = $handler;
}
} else {
throw new \InvalidArgumentException('Invalid event format');
}
}
return $options;
}
}