<?php
/*
 * Copyright 2020 Google LLC
 *
 * 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
 *
 *     https://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.
 */

/*
 * GENERATED CODE WARNING
 * Generated by gapic-generator-php from the file
 * https://github.com/googleapis/googleapis/blob/master/google/cloud/talent/v4/completion_service.proto
 * Updates to the above are reflected here through a refresh process.
 */

namespace Google\Cloud\Talent\V4\Gapic;

use Google\ApiCore\ApiException;
use Google\ApiCore\CredentialsWrapper;
use Google\ApiCore\GapicClientTrait;
use Google\ApiCore\PathTemplate;
use Google\ApiCore\RequestParamsHeaderDescriptor;
use Google\ApiCore\RetrySettings;
use Google\ApiCore\Transport\TransportInterface;
use Google\ApiCore\ValidationException;
use Google\Auth\FetchAuthTokenInterface;
use Google\Cloud\Talent\V4\CompleteQueryRequest;
use Google\Cloud\Talent\V4\CompleteQueryRequest\CompletionScope;
use Google\Cloud\Talent\V4\CompleteQueryRequest\CompletionType;
use Google\Cloud\Talent\V4\CompleteQueryResponse;

/**
 * Service Description: A service handles auto completion.
 *
 * This class provides the ability to make remote calls to the backing service through method
 * calls that map to API methods. Sample code to get started:
 *
 * ```
 * $completionClient = new CompletionClient();
 * try {
 *     $formattedTenant = $completionClient->tenantName('[PROJECT]', '[TENANT]');
 *     $query = 'query';
 *     $pageSize = 0;
 *     $response = $completionClient->completeQuery($formattedTenant, $query, $pageSize);
 * } finally {
 *     $completionClient->close();
 * }
 * ```
 *
 * Many parameters require resource names to be formatted in a particular way. To
 * assist with these names, this class includes a format method for each type of
 * name, and additionally a parseName method to extract the individual identifiers
 * contained within formatted names that are returned by the API.
 */
class CompletionGapicClient
{
    use GapicClientTrait;

    /** The name of the service. */
    const SERVICE_NAME = 'google.cloud.talent.v4.Completion';

    /** The default address of the service. */
    const SERVICE_ADDRESS = 'jobs.googleapis.com';

    /** The default port of the service. */
    const DEFAULT_SERVICE_PORT = 443;

    /** The name of the code generator, to be included in the agent header. */
    const CODEGEN_NAME = 'gapic';

    /** The default scopes required by the service. */
    public static $serviceScopes = [
        'https://www.googleapis.com/auth/cloud-platform',
        'https://www.googleapis.com/auth/jobs',
    ];

    private static $companyNameTemplate;

    private static $tenantNameTemplate;

    private static $pathTemplateMap;

    private static function getClientDefaults()
    {
        return [
            'serviceName' => self::SERVICE_NAME,
            'apiEndpoint' => self::SERVICE_ADDRESS . ':' . self::DEFAULT_SERVICE_PORT,
            'clientConfig' => __DIR__ . '/../resources/completion_client_config.json',
            'descriptorsConfigPath' => __DIR__ . '/../resources/completion_descriptor_config.php',
            'gcpApiConfigPath' => __DIR__ . '/../resources/completion_grpc_config.json',
            'credentialsConfig' => [
                'defaultScopes' => self::$serviceScopes,
            ],
            'transportConfig' => [
                'rest' => [
                    'restClientConfigPath' => __DIR__ . '/../resources/completion_rest_client_config.php',
                ],
            ],
        ];
    }

    private static function getCompanyNameTemplate()
    {
        if (self::$companyNameTemplate == null) {
            self::$companyNameTemplate = new PathTemplate('projects/{project}/tenants/{tenant}/companies/{company}');
        }

        return self::$companyNameTemplate;
    }

    private static function getTenantNameTemplate()
    {
        if (self::$tenantNameTemplate == null) {
            self::$tenantNameTemplate = new PathTemplate('projects/{project}/tenants/{tenant}');
        }

        return self::$tenantNameTemplate;
    }

    private static function getPathTemplateMap()
    {
        if (self::$pathTemplateMap == null) {
            self::$pathTemplateMap = [
                'company' => self::getCompanyNameTemplate(),
                'tenant' => self::getTenantNameTemplate(),
            ];
        }

        return self::$pathTemplateMap;
    }

    /**
     * Formats a string containing the fully-qualified path to represent a company
     * resource.
     *
     * @param string $project
     * @param string $tenant
     * @param string $company
     *
     * @return string The formatted company resource.
     */
    public static function companyName($project, $tenant, $company)
    {
        return self::getCompanyNameTemplate()->render([
            'project' => $project,
            'tenant' => $tenant,
            'company' => $company,
        ]);
    }

    /**
     * Formats a string containing the fully-qualified path to represent a tenant
     * resource.
     *
     * @param string $project
     * @param string $tenant
     *
     * @return string The formatted tenant resource.
     */
    public static function tenantName($project, $tenant)
    {
        return self::getTenantNameTemplate()->render([
            'project' => $project,
            'tenant' => $tenant,
        ]);
    }

    /**
     * Parses a formatted name string and returns an associative array of the components in the name.
     * The following name formats are supported:
     * Template: Pattern
     * - company: projects/{project}/tenants/{tenant}/companies/{company}
     * - tenant: projects/{project}/tenants/{tenant}
     *
     * The optional $template argument can be supplied to specify a particular pattern,
     * and must match one of the templates listed above. If no $template argument is
     * provided, or if the $template argument does not match one of the templates
     * listed, then parseName will check each of the supported templates, and return
     * the first match.
     *
     * @param string $formattedName The formatted name string
     * @param string $template      Optional name of template to match
     *
     * @return array An associative array from name component IDs to component values.
     *
     * @throws ValidationException If $formattedName could not be matched.
     */
    public static function parseName($formattedName, $template = null)
    {
        $templateMap = self::getPathTemplateMap();
        if ($template) {
            if (!isset($templateMap[$template])) {
                throw new ValidationException("Template name $template does not exist");
            }

            return $templateMap[$template]->match($formattedName);
        }

        foreach ($templateMap as $templateName => $pathTemplate) {
            try {
                return $pathTemplate->match($formattedName);
            } catch (ValidationException $ex) {
                // Swallow the exception to continue trying other path templates
            }
        }

        throw new ValidationException("Input did not match any known format. Input: $formattedName");
    }

    /**
     * Constructor.
     *
     * @param array $options {
     *     Optional. Options for configuring the service API wrapper.
     *
     *     @type string $apiEndpoint
     *           The address of the API remote host. May optionally include the port, formatted
     *           as "<uri>:<port>". Default 'jobs.googleapis.com:443'.
     *     @type string|array|FetchAuthTokenInterface|CredentialsWrapper $credentials
     *           The credentials to be used by the client to authorize API calls. This option
     *           accepts either a path to a credentials file, or a decoded credentials file as a
     *           PHP array.
     *           *Advanced usage*: In addition, this option can also accept a pre-constructed
     *           {@see \Google\Auth\FetchAuthTokenInterface} object or
     *           {@see \Google\ApiCore\CredentialsWrapper} object. Note that when one of these
     *           objects are provided, any settings in $credentialsConfig will be ignored.
     *     @type array $credentialsConfig
     *           Options used to configure credentials, including auth token caching, for the
     *           client. For a full list of supporting configuration options, see
     *           {@see \Google\ApiCore\CredentialsWrapper::build()} .
     *     @type bool $disableRetries
     *           Determines whether or not retries defined by the client configuration should be
     *           disabled. Defaults to `false`.
     *     @type string|array $clientConfig
     *           Client method configuration, including retry settings. This option can be either
     *           a path to a JSON file, or a PHP array containing the decoded JSON data. By
     *           default this settings points to the default client config file, which is
     *           provided in the resources folder.
     *     @type string|TransportInterface $transport
     *           The transport used for executing network requests. May be either the string
     *           `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system.
     *           *Advanced usage*: Additionally, it is possible to pass in an already
     *           instantiated {@see \Google\ApiCore\Transport\TransportInterface} object. Note
     *           that when this object is provided, any settings in $transportConfig, and any
     *           $apiEndpoint setting, will be ignored.
     *     @type array $transportConfig
     *           Configuration options that will be used to construct the transport. Options for
     *           each supported transport type should be passed in a key for that transport. For
     *           example:
     *           $transportConfig = [
     *               'grpc' => [...],
     *               'rest' => [...],
     *           ];
     *           See the {@see \Google\ApiCore\Transport\GrpcTransport::build()} and
     *           {@see \Google\ApiCore\Transport\RestTransport::build()} methods for the
     *           supported options.
     *     @type callable $clientCertSource
     *           A callable which returns the client cert as a string. This can be used to
     *           provide a certificate and private key to the transport layer for mTLS.
     * }
     *
     * @throws ValidationException
     */
    public function __construct(array $options = [])
    {
        $clientOptions = $this->buildClientOptions($options);
        $this->setClientOptions($clientOptions);
    }

    /**
     * Completes the specified prefix with keyword suggestions.
     * Intended for use by a job search auto-complete search box.
     *
     * Sample code:
     * ```
     * $completionClient = new CompletionClient();
     * try {
     *     $formattedTenant = $completionClient->tenantName('[PROJECT]', '[TENANT]');
     *     $query = 'query';
     *     $pageSize = 0;
     *     $response = $completionClient->completeQuery($formattedTenant, $query, $pageSize);
     * } finally {
     *     $completionClient->close();
     * }
     * ```
     *
     * @param string $tenant       Required. Resource name of tenant the completion is performed within.
     *
     *                             The format is "projects/{project_id}/tenants/{tenant_id}", for example,
     *                             "projects/foo/tenants/bar".
     * @param string $query        Required. The query used to generate suggestions.
     *
     *                             The maximum number of allowed characters is 255.
     * @param int    $pageSize     Required. Completion result count.
     *
     *                             The maximum allowed page size is 10.
     * @param array  $optionalArgs {
     *     Optional.
     *
     *     @type string[] $languageCodes
     *           The list of languages of the query. This is
     *           the BCP-47 language code, such as "en-US" or "sr-Latn".
     *           For more information, see
     *           [Tags for Identifying Languages](https://tools.ietf.org/html/bcp47).
     *
     *           The maximum number of allowed characters is 255.
     *     @type string $company
     *           If provided, restricts completion to specified company.
     *
     *           The format is
     *           "projects/{project_id}/tenants/{tenant_id}/companies/{company_id}", for
     *           example, "projects/foo/tenants/bar/companies/baz".
     *     @type int $scope
     *           The scope of the completion. The defaults is
     *           [CompletionScope.PUBLIC][google.cloud.talent.v4.CompleteQueryRequest.CompletionScope.PUBLIC].
     *           For allowed values, use constants defined on {@see \Google\Cloud\Talent\V4\CompleteQueryRequest\CompletionScope}
     *     @type int $type
     *           The completion topic. The default is
     *           [CompletionType.COMBINED][google.cloud.talent.v4.CompleteQueryRequest.CompletionType.COMBINED].
     *           For allowed values, use constants defined on {@see \Google\Cloud\Talent\V4\CompleteQueryRequest\CompletionType}
     *     @type RetrySettings|array $retrySettings
     *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
     *           associative array of retry settings parameters. See the documentation on
     *           {@see RetrySettings} for example usage.
     * }
     *
     * @return \Google\Cloud\Talent\V4\CompleteQueryResponse
     *
     * @throws ApiException if the remote call fails
     */
    public function completeQuery($tenant, $query, $pageSize, array $optionalArgs = [])
    {
        $request = new CompleteQueryRequest();
        $requestParamHeaders = [];
        $request->setTenant($tenant);
        $request->setQuery($query);
        $request->setPageSize($pageSize);
        $requestParamHeaders['tenant'] = $tenant;
        if (isset($optionalArgs['languageCodes'])) {
            $request->setLanguageCodes($optionalArgs['languageCodes']);
        }

        if (isset($optionalArgs['company'])) {
            $request->setCompany($optionalArgs['company']);
        }

        if (isset($optionalArgs['scope'])) {
            $request->setScope($optionalArgs['scope']);
        }

        if (isset($optionalArgs['type'])) {
            $request->setType($optionalArgs['type']);
        }

        $requestParams = new RequestParamsHeaderDescriptor($requestParamHeaders);
        $optionalArgs['headers'] = isset($optionalArgs['headers']) ? array_merge($requestParams->getHeader(), $optionalArgs['headers']) : $requestParams->getHeader();
        return $this->startCall('CompleteQuery', CompleteQueryResponse::class, $optionalArgs, $request)->wait();
    }
}
