public static OpenApiResponses CreateResponses()

in src/Microsoft.OpenApi.OData.Reader/Generator/OpenApiResponseGenerator.cs [116:188]
64 lines of code
6 McCabe index (conditional complexity)

        public static OpenApiResponses CreateResponses(this ODataContext context, IEdmOperation operation, ODataPath path)
        {
            Utils.CheckArgumentNull(context, nameof(context));
            Utils.CheckArgumentNull(operation, nameof(operation));
            Utils.CheckArgumentNull(path, nameof(path));

            OpenApiResponses responses = new();

            if (operation.IsAction() && operation.ReturnType == null)
            {
                responses.Add(Constants.StatusCode204, Constants.StatusCode204.GetResponse());
            }
            else
            {
                OpenApiSchema schema;
                if (operation.ReturnType.IsCollection())
                {
                    // Get the entity type of the previous segment
                    IEdmEntityType entityType = path.Segments.Reverse().Skip(1)?.Take(1)?.FirstOrDefault()?.EntityType;
                    schema = new OpenApiSchema
                    {
                        Title = entityType == null ? null : $"Collection of {entityType.Name}",
                        Type = "object",
                        Properties = new Dictionary<string, OpenApiSchema>
                        {
                            {
                                "value", context.CreateEdmTypeSchema(operation.ReturnType)
                            }
                        }
                    };
                }
                else if (operation.ReturnType.IsPrimitive())
                {
                    // A property or operation response that is of a primitive type is represented as an object with a single name/value pair,
                    // whose name is value and whose value is a primitive value.
                    schema = new OpenApiSchema
                    {
                        Type = "object",
                        Properties = new Dictionary<string, OpenApiSchema>
                        {
                            {
                                "value", context.CreateEdmTypeSchema(operation.ReturnType)
                            }
                        }
                    };
                }
                else
                {
                    schema = context.CreateEdmTypeSchema(operation.ReturnType);
                }

                OpenApiResponse response = new()
                {
                    Description = "Success",
                    Content = new Dictionary<string, OpenApiMediaType>
                    {
                        {
                            Constants.ApplicationJsonMediaType,
                            new OpenApiMediaType
                            {
                                Schema = schema
                            }
                        }
                    }
                };
                responses.Add(Constants.StatusCode200, response);
            }

            // Both action & function have the default response.
            responses.Add(Constants.StatusCodeDefault, Constants.StatusCodeDefault.GetResponse());

            return responses;
        }