<?php

/**
 * Copyright 2010 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
namespace VendorDuplicator\Google\Service;

use VendorDuplicator\Google\Exception as GoogleException;
use VendorDuplicator\Google\Http\MediaFileUpload;
use VendorDuplicator\Google\Model;
use VendorDuplicator\Google\Utils\UriTemplate;
use VendorDuplicator\GuzzleHttp\Psr7\Request;
/**
 * Implements the actual methods/resources of the discovered Google API using magic function
 * calling overloading (__call()), which on call will see if the method name (plus.activities.list)
 * is available in this service, and if so construct an apiHttpRequest representing it.
 *
 */
class Resource
{
    // Valid query parameters that work, but don't appear in discovery.
    private $stackParameters = ['alt' => ['type' => 'string', 'location' => 'query'], 'fields' => ['type' => 'string', 'location' => 'query'], 'trace' => ['type' => 'string', 'location' => 'query'], 'userIp' => ['type' => 'string', 'location' => 'query'], 'quotaUser' => ['type' => 'string', 'location' => 'query'], 'data' => ['type' => 'string', 'location' => 'body'], 'mimeType' => ['type' => 'string', 'location' => 'header'], 'uploadType' => ['type' => 'string', 'location' => 'query'], 'mediaUpload' => ['type' => 'complex', 'location' => 'query'], 'prettyPrint' => ['type' => 'string', 'location' => 'query']];
    /** @var string $rootUrl */
    private $rootUrl;
    /** @var \VendorDuplicator\Google\Client $client */
    private $client;
    /** @var string $serviceName */
    private $serviceName;
    /** @var string $servicePath */
    private $servicePath;
    /** @var string $resourceName */
    private $resourceName;
    /** @var array $methods */
    private $methods;
    public function __construct($service, $serviceName, $resourceName, $resource)
    {
        $this->rootUrl = $service->rootUrl;
        $this->client = $service->getClient();
        $this->servicePath = $service->servicePath;
        $this->serviceName = $serviceName;
        $this->resourceName = $resourceName;
        $this->methods = \is_array($resource) && isset($resource['methods']) ? $resource['methods'] : [$resourceName => $resource];
    }
    /**
     * TODO: This function needs simplifying.
     *
     * @template T
     * @param string $name
     * @param array $arguments
     * @param class-string<T> $expectedClass - optional, the expected class name
     * @return mixed|T|ResponseInterface|RequestInterface
     * @throws \VendorDuplicator\Google\Exception
     */
    public function call($name, $arguments, $expectedClass = null)
    {
        if (!isset($this->methods[$name])) {
            $this->client->getLogger()->error('Service method unknown', ['service' => $this->serviceName, 'resource' => $this->resourceName, 'method' => $name]);
            throw new GoogleException("Unknown function: " . "{$this->serviceName}->{$this->resourceName}->{$name}()");
        }
        $method = $this->methods[$name];
        $parameters = $arguments[0];
        // postBody is a special case since it's not defined in the discovery
        // document as parameter, but we abuse the param entry for storing it.
        $postBody = null;
        if (isset($parameters['postBody'])) {
            if ($parameters['postBody'] instanceof Model) {
                // In the cases the post body is an existing object, we want
                // to use the smart method to create a simple object for
                // for JSONification.
                $parameters['postBody'] = $parameters['postBody']->toSimpleObject();
            } elseif (\is_object($parameters['postBody'])) {
                // If the post body is another kind of object, we will try and
                // wrangle it into a sensible format.
                $parameters['postBody'] = $this->convertToArrayAndStripNulls($parameters['postBody']);
            }
            $postBody = (array) $parameters['postBody'];
            unset($parameters['postBody']);
        }
        // TODO: optParams here probably should have been
        // handled already - this may well be redundant code.
        if (isset($parameters['optParams'])) {
            $optParams = $parameters['optParams'];
            unset($parameters['optParams']);
            $parameters = \array_merge($parameters, $optParams);
        }
        if (!isset($method['parameters'])) {
            $method['parameters'] = [];
        }
        $method['parameters'] = \array_merge($this->stackParameters, $method['parameters']);
        foreach ($parameters as $key => $val) {
            if ($key != 'postBody' && !isset($method['parameters'][$key])) {
                $this->client->getLogger()->error('Service parameter unknown', ['service' => $this->serviceName, 'resource' => $this->resourceName, 'method' => $name, 'parameter' => $key]);
                throw new GoogleException("({$name}) unknown parameter: '{$key}'");
            }
        }
        foreach ($method['parameters'] as $paramName => $paramSpec) {
            if (isset($paramSpec['required']) && $paramSpec['required'] && !isset($parameters[$paramName])) {
                $this->client->getLogger()->error('Service parameter missing', ['service' => $this->serviceName, 'resource' => $this->resourceName, 'method' => $name, 'parameter' => $paramName]);
                throw new GoogleException("({$name}) missing required param: '{$paramName}'");
            }
            if (isset($parameters[$paramName])) {
                $value = $parameters[$paramName];
                $parameters[$paramName] = $paramSpec;
                $parameters[$paramName]['value'] = $value;
                unset($parameters[$paramName]['required']);
            } else {
                // Ensure we don't pass nulls.
                unset($parameters[$paramName]);
            }
        }
        $this->client->getLogger()->info('Service Call', ['service' => $this->serviceName, 'resource' => $this->resourceName, 'method' => $name, 'arguments' => $parameters]);
        // build the service uri
        $url = $this->createRequestUri($method['path'], $parameters);
        // NOTE: because we're creating the request by hand,
        // and because the service has a rootUrl property
        // the "base_uri" of the Http Client is not accounted for
        $request = new Request($method['httpMethod'], $url, $postBody ? ['content-type' => 'application/json'] : [], $postBody ? \json_encode($postBody) : '');
        // support uploads
        if (isset($parameters['data'])) {
            $mimeType = isset($parameters['mimeType']) ? $parameters['mimeType']['value'] : 'application/octet-stream';
            $data = $parameters['data']['value'];
            $upload = new MediaFileUpload($this->client, $request, $mimeType, $data);
            // pull down the modified request
            $request = $upload->getRequest();
        }
        // if this is a media type, we will return the raw response
        // rather than using an expected class
        if (isset($parameters['alt']) && $parameters['alt']['value'] == 'media') {
            $expectedClass = null;
        }
        // if the client is marked for deferring, rather than
        // execute the request, return the response
        if ($this->client->shouldDefer()) {
            // @TODO find a better way to do this
            $request = $request->withHeader('X-Php-Expected-Class', $expectedClass);
            return $request;
        }
        return $this->client->execute($request, $expectedClass);
    }
    protected function convertToArrayAndStripNulls($o)
    {
        $o = (array) $o;
        foreach ($o as $k => $v) {
            if ($v === null) {
                unset($o[$k]);
            } elseif (\is_object($v) || \is_array($v)) {
                $o[$k] = $this->convertToArrayAndStripNulls($o[$k]);
            }
        }
        return $o;
    }
    /**
     * Parse/expand request parameters and create a fully qualified
     * request uri.
     * @static
     * @param string $restPath
     * @param array $params
     * @return string $requestUrl
     */
    public function createRequestUri($restPath, $params)
    {
        // Override the default servicePath address if the $restPath use a /
        if ('/' == \substr($restPath, 0, 1)) {
            $requestUrl = \substr($restPath, 1);
        } else {
            $requestUrl = $this->servicePath . $restPath;
        }
        // code for leading slash
        if ($this->rootUrl) {
            if ('/' !== \substr($this->rootUrl, -1) && '/' !== \substr($requestUrl, 0, 1)) {
                $requestUrl = '/' . $requestUrl;
            }
            $requestUrl = $this->rootUrl . $requestUrl;
        }
        $uriTemplateVars = [];
        $queryVars = [];
        foreach ($params as $paramName => $paramSpec) {
            if ($paramSpec['type'] == 'boolean') {
                $paramSpec['value'] = $paramSpec['value'] ? 'true' : 'false';
            }
            if ($paramSpec['location'] == 'path') {
                $uriTemplateVars[$paramName] = $paramSpec['value'];
            } elseif ($paramSpec['location'] == 'query') {
                if (\is_array($paramSpec['value'])) {
                    foreach ($paramSpec['value'] as $value) {
                        $queryVars[] = $paramName . '=' . \rawurlencode(\rawurldecode($value));
                    }
                } else {
                    $queryVars[] = $paramName . '=' . \rawurlencode(\rawurldecode($paramSpec['value']));
                }
            }
        }
        if (\count($uriTemplateVars)) {
            $uriTemplateParser = new UriTemplate();
            $requestUrl = $uriTemplateParser->parse($requestUrl, $uriTemplateVars);
        }
        if (\count($queryVars)) {
            $requestUrl .= '?' . \implode('&', $queryVars);
        }
        return $requestUrl;
    }
}
