<?php

namespace VendorDuplicator\Aws;

use VendorDuplicator\Aws\Signature\SignatureV4;
use VendorDuplicator\Aws\Endpoint\EndpointProvider;
use VendorDuplicator\GuzzleHttp\Psr7\Uri;
use VendorDuplicator\Psr\Http\Message\RequestInterface;
/**
 * @internal Adds computed values to service operations that need presigned url.
 */
class PresignUrlMiddleware
{
    private $client;
    private $endpointProvider;
    private $nextHandler;
    /** @var array names of operations that require presign url */
    private $commandPool;
    /** @var array query params that are not on the operation's model to add before signing */
    private $extraQueryParams;
    /** @var string */
    private $serviceName;
    /** @var string */
    private $presignParam;
    /** @var bool */
    private $requireDifferentRegion;
    public function __construct(array $options, $endpointProvider, AwsClientInterface $client, callable $nextHandler)
    {
        $this->endpointProvider = $endpointProvider;
        $this->client = $client;
        $this->nextHandler = $nextHandler;
        $this->commandPool = $options['operations'];
        $this->serviceName = $options['service'];
        $this->presignParam = !empty($options['presign_param']) ? $options['presign_param'] : 'PresignedUrl';
        $this->extraQueryParams = !empty($options['extra_query_params']) ? $options['extra_query_params'] : [];
        $this->requireDifferentRegion = !empty($options['require_different_region']);
    }
    public static function wrap(AwsClientInterface $client, $endpointProvider, array $options = [])
    {
        return function (callable $handler) use ($endpointProvider, $client, $options) {
            $f = new PresignUrlMiddleware($options, $endpointProvider, $client, $handler);
            return $f;
        };
    }
    public function __invoke(CommandInterface $cmd, ?RequestInterface $request = null)
    {
        if (in_array($cmd->getName(), $this->commandPool) && !isset($cmd['__skip' . $cmd->getName()])) {
            $cmd['DestinationRegion'] = $this->client->getRegion();
            if (!empty($cmd['SourceRegion']) && !empty($cmd[$this->presignParam])) {
                goto nexthandler;
            }
            if (!$this->requireDifferentRegion || !empty($cmd['SourceRegion']) && $cmd['SourceRegion'] !== $cmd['DestinationRegion']) {
                $cmd[$this->presignParam] = $this->createPresignedUrl($this->client, $cmd);
            }
        }
        nexthandler:
        $nextHandler = $this->nextHandler;
        return $nextHandler($cmd, $request);
    }
    private function createPresignedUrl(AwsClientInterface $client, CommandInterface $cmd)
    {
        $cmdName = $cmd->getName();
        $newCmd = $client->getCommand($cmdName, $cmd->toArray());
        // Avoid infinite recursion by flagging the new command.
        $newCmd['__skip' . $cmdName] = \true;
        // Serialize a request for the operation.
        $request = \VendorDuplicator\Aws\serialize($newCmd);
        // Create the new endpoint for the target endpoint.
        if ($this->endpointProvider instanceof \VendorDuplicator\Aws\EndpointV2\EndpointProviderV2) {
            $providerArgs = array_merge($this->client->getEndpointProviderArgs(), ['Region' => $cmd['SourceRegion']]);
            $endpoint = $this->endpointProvider->resolveEndpoint($providerArgs)->getUrl();
        } else {
            $endpoint = EndpointProvider::resolve($this->endpointProvider, ['region' => $cmd['SourceRegion'], 'service' => $this->serviceName])['endpoint'];
        }
        // Set the request to hit the target endpoint.
        $uri = $request->getUri()->withHost((new Uri($endpoint))->getHost());
        $request = $request->withUri($uri);
        // Create a presigned URL for our generated request.
        $signer = new SignatureV4($this->serviceName, $cmd['SourceRegion']);
        $currentQueryParams = (string) $request->getBody();
        $paramsToAdd = \false;
        if (!empty($this->extraQueryParams[$cmdName])) {
            foreach ($this->extraQueryParams[$cmdName] as $param) {
                if (!strpos($currentQueryParams, $param)) {
                    $paramsToAdd = "&{$param}={$cmd[$param]}";
                }
            }
        }
        return (string) $signer->presign(SignatureV4::convertPostToGet($request, $paramsToAdd ?: ""), $client->getCredentials()->wait(), '+1 hour')->getUri();
    }
}
