From 49e10ed20f7e9288d042a77e96b6c2719a765e38 Mon Sep 17 00:00:00 2001
From: "Daniel L. Romero" <raiga1234@gmail.com>
Date: Tue, 2 Nov 2021 09:28:02 -0500
Subject: [PATCH] Support basepath from servers (#675)

* Support basepath from servers

* Refactor BasePath

* Comments applied
---
 .../Mappers/OpenApiPathsMapper.cs             | 32 ++++++++++++++-----
 .../WireMockOpenApiParser.cs                  |  2 +-
 2 files changed, 25 insertions(+), 9 deletions(-)

diff --git a/src/WireMock.Net.OpenApiParser/Mappers/OpenApiPathsMapper.cs b/src/WireMock.Net.OpenApiParser/Mappers/OpenApiPathsMapper.cs
index 30a9f23a..d4e8707f 100644
--- a/src/WireMock.Net.OpenApiParser/Mappers/OpenApiPathsMapper.cs
+++ b/src/WireMock.Net.OpenApiParser/Mappers/OpenApiPathsMapper.cs
@@ -26,22 +26,22 @@ namespace WireMock.Net.OpenApiParser.Mappers
             _exampleValueGenerator = new ExampleValueGenerator(settings);
         }
 
-        public IEnumerable<MappingModel> ToMappingModels(OpenApiPaths paths)
+        public IEnumerable<MappingModel> ToMappingModels(OpenApiPaths paths, IList<OpenApiServer> servers)
         {
-            return paths.Select(p => MapPath(p.Key, p.Value)).SelectMany(x => x);
+            return paths.Select(p => MapPath(p.Key, p.Value, servers)).SelectMany(x => x);
         }
 
-        private IEnumerable<MappingModel> MapPaths(OpenApiPaths paths)
+        private IEnumerable<MappingModel> MapPaths(OpenApiPaths paths, IList<OpenApiServer> servers)
         {
-            return paths.Select(p => MapPath(p.Key, p.Value)).SelectMany(x => x);
+            return paths.Select(p => MapPath(p.Key, p.Value, servers)).SelectMany(x => x);
         }
 
-        private IEnumerable<MappingModel> MapPath(string path, OpenApiPathItem pathItem)
+        private IEnumerable<MappingModel> MapPath(string path, OpenApiPathItem pathItem, IList<OpenApiServer> servers)
         {
-            return pathItem.Operations.Select(o => MapOperationToMappingModel(path, o.Key.ToString().ToUpperInvariant(), o.Value));
+            return pathItem.Operations.Select(o => MapOperationToMappingModel(path, o.Key.ToString().ToUpperInvariant(), o.Value, servers));
         }
 
-        private MappingModel MapOperationToMappingModel(string path, string httpMethod, OpenApiOperation operation)
+        private MappingModel MapOperationToMappingModel(string path, string httpMethod, OpenApiOperation operation, IList<OpenApiServer> servers)
         {
             var queryParameters = operation.Parameters.Where(p => p.In == ParameterLocation.Query);
             var pathParameters = operation.Parameters.Where(p => p.In == ParameterLocation.Path);
@@ -69,7 +69,7 @@ namespace WireMock.Net.OpenApiParser.Mappers
                 Request = new RequestModel
                 {
                     Methods = new[] { httpMethod },
-                    Path = MapPathWithParameters(path, pathParameters),
+                    Path = MapBasePath(servers) + MapPathWithParameters(path, pathParameters),
                     Params = MapQueryParameters(queryParameters),
                     Headers = MapRequestHeaders(headers)
                 },
@@ -230,6 +230,22 @@ namespace WireMock.Net.OpenApiParser.Mappers
             return newPath;
         }
 
+        private string MapBasePath(IList<OpenApiServer> servers)
+        {
+            if (servers == null || servers.Count == 0)
+            {
+                return string.Empty;
+            }
+
+            OpenApiServer server = servers.First();
+            Uri uriResult;
+            if (Uri.TryCreate(server.Url, UriKind.RelativeOrAbsolute, out uriResult))
+            {
+                return uriResult.IsAbsoluteUri ? uriResult.AbsolutePath : uriResult.ToString();
+            }
+            return string.Empty;
+        }
+
         private JToken MapOpenApiAnyToJToken(IOpenApiAny any)
         {
             if (any == null)
diff --git a/src/WireMock.Net.OpenApiParser/WireMockOpenApiParser.cs b/src/WireMock.Net.OpenApiParser/WireMockOpenApiParser.cs
index d84672a8..297c6033 100644
--- a/src/WireMock.Net.OpenApiParser/WireMockOpenApiParser.cs
+++ b/src/WireMock.Net.OpenApiParser/WireMockOpenApiParser.cs
@@ -62,7 +62,7 @@ namespace WireMock.Net.OpenApiParser
         [PublicAPI]
         public IEnumerable<MappingModel> FromDocument(OpenApiDocument openApiDocument, WireMockOpenApiParserSettings settings = null)
         {
-            return new OpenApiPathsMapper(settings).ToMappingModels(openApiDocument.Paths);
+            return new OpenApiPathsMapper(settings).ToMappingModels(openApiDocument.Paths, openApiDocument.Servers);
         }
     }
 }
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