Refactor endpoint generation (#605)

* Refactor endpoint generation

* Regenerate code

* Use default case for "global" endpoint

* Add an UnsupportedRegion exception

* Handle null region

* Check region for global

* Display only supported versions

* Fix cs

* Add blank line, and replace PHP_EOL bt \n

Author: jderusse

src/LambdaClient.php

@@ -3,6 +3,8 @@
 namespace AsyncAws\Lambda;
 
 use AsyncAws\Core\AbstractApi;
+use AsyncAws\Core\Configuration;
+use AsyncAws\Core\Exception\UnsupportedRegion;
 use AsyncAws\Core\RequestContext;
 use AsyncAws\Lambda\Input\AddLayerVersionPermissionRequest;
 use AsyncAws\Lambda\Input\InvocationRequest;
@@ -117,6 +119,129 @@ public function publishLayerVersion($input): PublishLayerVersionResponse
         return new PublishLayerVersionResponse($response);
     }
 
+    protected function getEndpointMetadata(?string $region): array
+    {
+        if (null === $region) {
+            $region = Configuration::DEFAULT_REGION;
+        }
+
+        switch ($region) {
+            case 'af-south-1':
+            case 'ap-east-1':
+            case 'ap-northeast-1':
+            case 'ap-northeast-2':
+            case 'ap-south-1':
+            case 'ap-southeast-1':
+            case 'ap-southeast-2':
+            case 'ca-central-1':
+            case 'eu-central-1':
+            case 'eu-north-1':
+            case 'eu-south-1':
+            case 'eu-west-1':
+            case 'eu-west-2':
+            case 'eu-west-3':
+            case 'me-south-1':
+            case 'sa-east-1':
+            case 'us-east-1':
+            case 'us-east-2':
+            case 'us-west-1':
+            case 'us-west-2':
+                return [
+                    'endpoint' => 'https://lambda.%region%.amazonaws.com',
+                    'signRegion' => $region,
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+            case 'cn-north-1':
+            case 'cn-northwest-1':
+                return [
+                    'endpoint' => 'https://lambda.%region%.amazonaws.com.cn',
+                    'signRegion' => $region,
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+            case 'us-gov-east-1':
+            case 'us-gov-west-1':
+                return [
+                    'endpoint' => 'https://lambda.%region%.amazonaws.com',
+                    'signRegion' => $region,
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+            case 'us-iso-east-1':
+                return [
+                    'endpoint' => 'https://lambda.%region%.c2s.ic.gov',
+                    'signRegion' => $region,
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+            case 'fips-us-east-1':
+                return [
+                    'endpoint' => 'https://lambda-fips.us-east-1.amazonaws.com',
+                    'signRegion' => 'us-east-1',
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+            case 'fips-us-east-2':
+                return [
+                    'endpoint' => 'https://lambda-fips.us-east-2.amazonaws.com',
+                    'signRegion' => 'us-east-2',
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+            case 'fips-us-gov-east-1':
+                return [
+                    'endpoint' => 'https://lambda-fips.us-gov-east-1.amazonaws.com',
+                    'signRegion' => 'us-gov-east-1',
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+            case 'fips-us-gov-west-1':
+                return [
+                    'endpoint' => 'https://lambda-fips.us-gov-west-1.amazonaws.com',
+                    'signRegion' => 'us-gov-west-1',
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+            case 'fips-us-west-1':
+                return [
+                    'endpoint' => 'https://lambda-fips.us-west-1.amazonaws.com',
+                    'signRegion' => 'us-west-1',
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+            case 'fips-us-west-2':
+                return [
+                    'endpoint' => 'https://lambda-fips.us-west-2.amazonaws.com',
+                    'signRegion' => 'us-west-2',
+                    'signService' => 'lambda',
+                    'signVersions' => [
+                        0 => 'v4',
+                    ],
+                ];
+        }
+
+        throw new UnsupportedRegion(sprintf('The region "%s" is not supported by "Lambda".', $region));
+    }
+
     protected function getServiceCode(): string
     {
         return 'lambda';