/*
 * Copyright 2018 OpenAPI-Generator Contributors (https://openapi-generator.tech)
 *
 * 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.
 */

package org.openapitools.codegen.languages;

import com.samskivert.mustache.Mustache;
import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.media.Schema;
import io.swagger.v3.parser.util.SchemaTypeUtil;
import org.openapitools.codegen.*;
import org.openapitools.codegen.meta.features.*;
import org.openapitools.codegen.model.ModelMap;
import org.openapitools.codegen.model.OperationMap;
import org.openapitools.codegen.model.OperationsMap;
import org.openapitools.codegen.utils.ModelUtils;
import org.openapitools.codegen.utils.URLPathUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.File;
import java.net.URL;
import java.util.*;

import static java.util.UUID.randomUUID;

public class CSharpFunctionsServerCodegen extends AbstractCSharpCodegen {

    public static final String NET_CORE_VERSION = "netCoreVersion";
    public static final String AZURE_FUNCTIONS_VERSION = "azureFunctionsVersion";
    public static final String CLASS_MODIFIER = "classModifier";
    public static final String OPERATION_MODIFIER = "operationModifier";
    public static final String OPERATION_IS_ASYNC = "operationIsAsync";
    public static final String OPERATION_RESULT_TASK = "operationResultTask";
    public static final String GENERATE_BODY = "generateBody";
    public static final String BUILD_TARGET = "buildTarget";
    public static final String MODEL_CLASS_MODIFIER = "modelClassModifier";
    public static final String TARGET_FRAMEWORK = "targetFramework";
    public static final String FUNCTIONS_SDK_VERSION = "functionsSDKVersion";

    public static final String COMPATIBILITY_VERSION = "compatibilityVersion";
    public static final String USE_NEWTONSOFT = "useNewtonsoft";
    public static final String NEWTONSOFT_VERSION = "newtonsoftVersion";
    public static final String NET_60_OR_LATER = "net60OrLater";

    private String packageGuid = "{" + randomUUID().toString().toUpperCase(Locale.ROOT) + "}";
    private String userSecretsGuid = randomUUID().toString();

    protected final Logger LOGGER = LoggerFactory.getLogger(AspNetServerCodegen.class);

    protected int serverPort = 8080;
    protected String serverHost = "0.0.0.0";
    protected CliOption netCoreVersion = new CliOption(NET_CORE_VERSION, ".NET Core version: 6.0, 5.0, 3.1, 3.0");
    protected CliOption azureFunctionsVersion = new CliOption(AZURE_FUNCTIONS_VERSION, "Azure functions version: v4, v3");
    private CliOption classModifier = new CliOption(CLASS_MODIFIER, "Class Modifier for function classes: Empty string or abstract.");
    private CliOption operationModifier = new CliOption(OPERATION_MODIFIER, "Operation Modifier can be virtual or abstract");
    private CliOption modelClassModifier = new CliOption(MODEL_CLASS_MODIFIER, "Model Class Modifier can be nothing or partial");
    private boolean generateBody = true;
    private CliOption buildTarget = new CliOption("buildTarget", "Target to build an application or library");
    private String projectSdk = "Microsoft.NET.Sdk";
    private boolean operationIsAsync = false;
    private boolean operationResultTask = false;
    private boolean isLibrary = false;
    private boolean useFrameworkReference = false;
    private boolean useNewtonsoft = true;
    private String newtonsoftVersion = "3.0.0";

    public CSharpFunctionsServerCodegen() {
        super();

        // TODO: AspnetCore community review
        modifyFeatureSet(features -> features
                .includeDocumentationFeatures(DocumentationFeature.Readme)
                .excludeWireFormatFeatures(WireFormatFeature.PROTOBUF)
                .securityFeatures(EnumSet.of(
                        SecurityFeature.ApiKey,
                        SecurityFeature.BasicAuth,
                        SecurityFeature.BearerToken
                ))
                .excludeGlobalFeatures(
                        GlobalFeature.XMLStructureDefinitions,
                        GlobalFeature.Callbacks,
                        GlobalFeature.LinkObjects,
                        GlobalFeature.ParameterStyling,
                        GlobalFeature.MultiServer
                )
                .includeSchemaSupportFeatures(
                        SchemaSupportFeature.Polymorphism
                )
                .includeParameterFeatures(
                        ParameterFeature.Cookie
                )
        );

        outputFolder = "generated-code" + File.separator + getName();

        modelTemplateFiles.put("model.mustache", ".cs");
        apiTemplateFiles.put("function.mustache", ".cs");

        embeddedTemplateDir = templateDir = "csharp-functions";

        // contextually reserved words
        // NOTE: C# uses camel cased reserved words, while models are title cased. We don't want lowercase comparisons.
        reservedWords.addAll(
                Arrays.asList("var", "async", "await", "dynamic", "yield")
        );

        cliOptions.clear();

        setSupportNullable(Boolean.TRUE);

        // CLI options
        addOption(CodegenConstants.PACKAGE_DESCRIPTION,
                CodegenConstants.PACKAGE_DESCRIPTION_DESC,
                packageDescription);

        addOption(CodegenConstants.LICENSE_URL,
                CodegenConstants.LICENSE_URL_DESC,
                licenseUrl);

        addOption(CodegenConstants.LICENSE_NAME,
                CodegenConstants.LICENSE_NAME_DESC,
                licenseName);

        addOption(CodegenConstants.PACKAGE_COPYRIGHT,
                CodegenConstants.PACKAGE_COPYRIGHT_DESC,
                packageCopyright);

        addOption(CodegenConstants.PACKAGE_AUTHORS,
                CodegenConstants.PACKAGE_AUTHORS_DESC,
                packageAuthors);

        addOption(CodegenConstants.PACKAGE_TITLE,
                CodegenConstants.PACKAGE_TITLE_DESC,
                packageTitle);

        addOption(CodegenConstants.PACKAGE_NAME,
                "C# package name (convention: Title.Case).",
                packageName);

        addOption(CodegenConstants.PACKAGE_VERSION,
                "C# package version.",
                packageVersion);

        addOption(CodegenConstants.OPTIONAL_PROJECT_GUID,
                CodegenConstants.OPTIONAL_PROJECT_GUID_DESC,
                null);

        addOption(CodegenConstants.SOURCE_FOLDER,
                CodegenConstants.SOURCE_FOLDER_DESC,
                sourceFolder);

        netCoreVersion.addEnum("3.0", ".NET Core 3.0");
        netCoreVersion.addEnum("3.1", ".NET Core 3.1");
        netCoreVersion.addEnum("5.0", ".NET Core 5.0");
        netCoreVersion.addEnum("6.0", ".NET Core 6.0");
        netCoreVersion.setDefault("3.1");
        netCoreVersion.setOptValue(netCoreVersion.getDefault());
        cliOptions.add(netCoreVersion);

        azureFunctionsVersion.addEnum("v4", "Azure Functions v4");
        azureFunctionsVersion.addEnum("v3", "Azure Functions v3");
        azureFunctionsVersion.setDefault("v4");
        azureFunctionsVersion.setOptValue(azureFunctionsVersion.getDefault());
        cliOptions.add(azureFunctionsVersion);

        // CLI Switches
        addSwitch(CodegenConstants.NULLABLE_REFERENCE_TYPES,
                CodegenConstants.NULLABLE_REFERENCE_TYPES_DESC,
                this.nullReferenceTypesFlag);

        addSwitch(CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG,
                CodegenConstants.SORT_PARAMS_BY_REQUIRED_FLAG_DESC,
                sortParamsByRequiredFlag);

        addSwitch(CodegenConstants.USE_DATETIME_OFFSET,
                CodegenConstants.USE_DATETIME_OFFSET_DESC,
                useDateTimeOffsetFlag);

        addSwitch(CodegenConstants.USE_DATETIME_FOR_DATE,
                CodegenConstants.USE_DATETIME_FOR_DATE_DESC,
                useDateTimeForDateFlag);

        addSwitch(CodegenConstants.USE_COLLECTION,
                CodegenConstants.USE_COLLECTION_DESC,
                useCollection);

        addSwitch(CodegenConstants.RETURN_ICOLLECTION,
                CodegenConstants.RETURN_ICOLLECTION_DESC,
                returnICollection);

        addSwitch(USE_NEWTONSOFT,
                "Uses the Newtonsoft JSON library.",
                useNewtonsoft);

        addOption(NEWTONSOFT_VERSION,
                "Version for Newtonsoft.Json for .NET Core 3.0+",
                newtonsoftVersion);

        addOption(CodegenConstants.ENUM_NAME_SUFFIX,
                CodegenConstants.ENUM_NAME_SUFFIX_DESC,
                enumNameSuffix);

        addOption(CodegenConstants.ENUM_VALUE_SUFFIX,
                "Suffix that will be appended to all enum values.",
                enumValueSuffix);

        classModifier.addEnum("", "Keep class default with no modifier");
        classModifier.addEnum("abstract", "Make class abstract");
        classModifier.setDefault("");
        classModifier.setOptValue(classModifier.getDefault());
        addOption(classModifier.getOpt(), classModifier.getDescription(), classModifier.getOptValue());

        operationModifier.addEnum("virtual", "Keep method virtual");
        operationModifier.addEnum("abstract", "Make method abstract");
        operationModifier.setDefault("virtual");
        operationModifier.setOptValue(operationModifier.getDefault());
        cliOptions.add(operationModifier);

        buildTarget.addEnum("program", "Generate code for a standalone server");
        buildTarget.addEnum("library", "Generate code for a server abstract class library");
        buildTarget.setDefault("program");
        buildTarget.setOptValue(buildTarget.getDefault());
        cliOptions.add(buildTarget);

        addSwitch(GENERATE_BODY,
                "Generates method body.",
                generateBody);

        addSwitch(OPERATION_IS_ASYNC,
                "Set methods to async or sync (default).",
                operationIsAsync);

        addSwitch(OPERATION_RESULT_TASK,
                "Set methods result to Task<>.",
                operationResultTask);

        modelClassModifier.setType("String");
        modelClassModifier.addEnum("", "Keep model class default with no modifier");
        modelClassModifier.addEnum("partial", "Make model class partial");
        modelClassModifier.setDefault("partial");
        modelClassModifier.setOptValue(modelClassModifier.getDefault());
        addOption(modelClassModifier.getOpt(), modelClassModifier.getDescription(), modelClassModifier.getOptValue());
    }

    @Deprecated
    @Override
    protected Set<String> getNullableTypes() {
        return new HashSet<>(Arrays.asList("decimal", "bool", "int", "uint", "long", "ulong", "float", "double",
            "DateTime", "DateTimeOffset", "Guid"));
    }

    @Override
    protected Set<String> getValueTypes() {
        return new HashSet<>(Arrays.asList("decimal", "bool", "int", "uint", "long", "ulong", "float", "double"));
    }

    @Override
    protected boolean useNet60OrLater() {
        return additionalProperties.containsKey(NET_60_OR_LATER);
    }

    @Override
    public void postProcessParameter(CodegenParameter parameter) {
        super.postProcessParameter(parameter);

        if (!parameter.dataType.endsWith("?") && !parameter.required && (nullReferenceTypesFlag || this.getNullableTypes().contains(parameter.dataType))) {
            parameter.dataType = parameter.dataType + "?";
        }
    }

    @Override
    protected void patchProperty(Map<String, CodegenModel> enumRefs, CodegenModel model, CodegenProperty property) {
        super.patchProperty(enumRefs, model, property);

        if (!property.isContainer && (this.getNullableTypes().contains(property.dataType) || property.isEnum)) {
            property.vendorExtensions.put("x-csharp-value-type", true);
        }
    }

    @Override
    protected void updateCodegenParameterEnum(CodegenParameter parameter, CodegenModel model) {
        super.updateCodegenParameterEnumLegacy(parameter, model);

        if (!parameter.required && parameter.vendorExtensions.get("x-csharp-value-type") != null) { //optional
            parameter.dataType = parameter.dataType + "?";
        }
    }

    @Override
    public CodegenType getTag() {
        return CodegenType.SERVER;
    }

    @Override
    public String getName() {
        return "csharp-functions";
    }

    @Override
    public String getHelp() {
        return "Creates Azure function templates on top of the models/converters created by the C# codegens. This function is contained in a partial class. Default Get/Create/Patch/Post etc. methods are created with an underscore prefix. The assumption is that when the function is implemented, the partial class will be completed with another partial class. The implementing code should be located in a method of the same name, only without the underscore prefix. If no such method is found then the function will throw a Not Implemented exception. This setup allows the endpoints to be specified in the schema at build time, and separated from the implementing function.";
    }

    @Override
    public void preprocessOpenAPI(OpenAPI openAPI) {
        super.preprocessOpenAPI(openAPI);
        URL url = URLPathUtils.getServerURL(openAPI, serverVariableOverrides());
        additionalProperties.put("serverHost", url.getHost());
        additionalProperties.put("serverPort", URLPathUtils.getPort(url, 8080));

        setApiBasePath();
    }

    @Override
    public void processOpts() {
        super.processOpts();

        if (additionalProperties.containsKey(CodegenConstants.OPTIONAL_PROJECT_GUID)) {
            setPackageGuid((String) additionalProperties.get(CodegenConstants.OPTIONAL_PROJECT_GUID));
        }
        additionalProperties.put("packageGuid", packageGuid);

        if (!additionalProperties.containsKey("userSecretsGuid")) {
            additionalProperties.put("userSecretsGuid", userSecretsGuid);
        } else {
            userSecretsGuid = (String) additionalProperties.get("userSecretsGuid");
        }

        if (!additionalProperties.containsKey(NEWTONSOFT_VERSION)) {
            additionalProperties.put(NEWTONSOFT_VERSION, newtonsoftVersion);
        } else {
            newtonsoftVersion = (String) additionalProperties.get(NEWTONSOFT_VERSION);
        }

        // Check for the modifiers etc.
        // The order of the checks is important.
        setClassModifier();
        setOperationModifier();
        setModelClassModifier();
        setOperationIsAsync();


        additionalProperties.put("dockerTag", packageName.toLowerCase(Locale.ROOT));

        if (!additionalProperties.containsKey(CodegenConstants.API_PACKAGE)) {
            apiPackage = packageName + ".Functions";
            additionalProperties.put(CodegenConstants.API_PACKAGE, apiPackage);
        }

        if (!additionalProperties.containsKey(CodegenConstants.MODEL_PACKAGE)) {
            modelPackage = packageName + ".Models";
            additionalProperties.put(CodegenConstants.MODEL_PACKAGE, modelPackage);
        }

        String packageFolder = sourceFolder + File.separator + packageName;

        // determine the ASP.NET core version setting
        setAzureFunctionsVersion();
        setNetCoreVersion(packageFolder);
        setUseNewtonsoft();

        // Check for class modifier if not present set the default value.

        supportingFiles.add(new SupportingFile("build.sh.mustache", "", "build.sh"));
        supportingFiles.add(new SupportingFile("build.bat.mustache", "", "build.bat"));
        supportingFiles.add(new SupportingFile("README.mustache", "", "README.md"));
        supportingFiles.add(new SupportingFile("Solution.mustache", "", packageName + ".sln"));
        supportingFiles.add(new SupportingFile("gitignore", packageFolder, ".gitignore"));
        supportingFiles.add(new SupportingFile("OpenApi" + File.separator + "TypeExtensions.mustache", packageFolder + File.separator + "OpenApi", "TypeExtensions.cs"));
        supportingFiles.add(new SupportingFile("Project.csproj.mustache", packageFolder, packageName + ".csproj"));
        supportingFiles.add(new SupportingFile("typeConverter.mustache", packageFolder + File.separator + "Converters", "CustomEnumConverter.cs"));
        supportingFiles.add(new SupportingFile("host.json.mustache", packageFolder, "host.json"));
        supportingFiles.add(new SupportingFile("local.settings.json.mustache", packageFolder, "local.settings.json"));

        this.setTypeMapping();
    }

    public void setPackageGuid(String packageGuid) {
        this.packageGuid = packageGuid;
    }

    @Override
    public String apiFileFolder() {
        return outputFolder + File.separator + sourceFolder + File.separator + packageName + File.separator + "Functions";
    }

    @Override
    public String modelFileFolder() {
        return outputFolder + File.separator + sourceFolder + File.separator + packageName + File.separator + "Models";
    }

    @Override
    public Map<String, Object> postProcessSupportingFileData(Map<String, Object> objs) {
        generateJSONSpecFile(objs);
        return super.postProcessSupportingFileData(objs);
    }

    @Override
    protected void processOperation(CodegenOperation operation) {
        super.processOperation(operation);

        // HACK: Unlikely in the wild, but we need to clean operation paths for MVC Routing
        if (operation.path != null) {
            if (operation.path.startsWith("/")) {
                operation.path = operation.path.substring(1);
            }
            String original = operation.path;
            operation.path = operation.path.replace("?", "/");
            if (!original.equals(operation.path)) {
                LOGGER.warn("Normalized {} to {}. Please verify generated source.", original, operation.path);
            }
        }

        // Converts, for example, PUT to HttpPut for function attributes
        operation.httpMethod = operation.httpMethod.charAt(0) + operation.httpMethod.substring(1).toLowerCase(Locale.ROOT);
    }

    @Override
    public OperationsMap postProcessOperationsWithModels(OperationsMap objs, List<ModelMap> allModels) {
        super.postProcessOperationsWithModels(objs, allModels);
        // We need to postprocess the operations to add proper consumes tags and fix form file handling
        if (objs != null) {
            OperationMap operations = objs.getOperations();
            if (operations != null) {
                List<CodegenOperation> ops = operations.getOperation();
                for (CodegenOperation operation : ops) {
                    if (operation.consumes == null) {
                        continue;
                    }
                    if (operation.consumes.size() == 0) {
                        continue;
                    }

                    // Build a consumes string for the operation we cannot iterate in the template as we need a ','
                    // after each entry but the last

                    StringBuilder consumesString = new StringBuilder();
                    for (Map<String, String> consume : operation.consumes) {
                        if (!consume.containsKey("mediaType")) {
                            continue;
                        }

                        if (consumesString.toString().isEmpty()) {
                            consumesString = new StringBuilder("\"" + consume.get("mediaType") + "\"");
                        } else {
                            consumesString.append(", \"").append(consume.get("mediaType")).append("\"");
                        }

                        // In a multipart/form-data consuming context binary data is best handled by an IFormFile
                        if (!consume.get("mediaType").equals("multipart/form-data")) {
                            continue;
                        }

                        // Change dataType of binary parameters to IFormFile for formParams in multipart/form-data
                        for (CodegenParameter param : operation.formParams) {
                            if (param.isBinary) {
                                param.dataType = "IFormFile";
                                param.baseType = "IFormFile";
                            }
                        }

                        for (CodegenParameter param : operation.allParams) {
                            if (param.isBinary && param.isFormParam) {
                                param.dataType = "IFormFile";
                                param.baseType = "IFormFile";
                            }
                        }
                    }

                    if (!consumesString.toString().isEmpty()) {
                        operation.vendorExtensions.put("x-aspnetcore-consumes", consumesString.toString());
                    }
                }
            }
        }
        return objs;
    }

    @Override
    public Mustache.Compiler processCompiler(Mustache.Compiler compiler) {
        // To avoid unexpected behaviors when options are passed programmatically such as { "useCollection": "" }
        return super.processCompiler(compiler).emptyStringIsFalse(true);
    }

    @Override
    public String toRegularExpression(String pattern) {
        return escapeText(pattern);
    }

    @SuppressWarnings("rawtypes")
    @Override
    public String getNullableType(Schema p, String type) {
        if (languageSpecificPrimitives.contains(type)) {
            if (isSupportNullable() && ModelUtils.isNullable(p) && (this.getNullableTypes().contains(type) || nullReferenceTypesFlag)) {
                return type + "?";
            } else {
                return type;
            }
        } else {
            return null;
        }
    }

    @Override
    protected void patchVendorExtensionNullableValueType(CodegenParameter parameter) {
        super.patchVendorExtensionNullableValueTypeLegacy(parameter);
    }

    private void setCliOption(CliOption cliOption) throws IllegalArgumentException {
        if (additionalProperties.containsKey(cliOption.getOpt())) {
            // TODO Hack - not sure why the empty strings become boolean.
            Object obj = additionalProperties.get(cliOption.getOpt());
            if (!SchemaTypeUtil.BOOLEAN_TYPE.equals(cliOption.getType())) {
                if (obj instanceof Boolean) {
                    obj = "";
                    additionalProperties.put(cliOption.getOpt(), obj);
                }
            }
            cliOption.setOptValue(obj.toString());
        } else {
            additionalProperties.put(cliOption.getOpt(), cliOption.getOptValue());
        }
        if (cliOption.getOptValue() == null) {
            cliOption.setOptValue(cliOption.getDefault());
            throw new IllegalArgumentException(cliOption.getOpt() + ": Invalid value '" + additionalProperties.get(cliOption.getOpt()).toString() + "'" +
                    ". " + cliOption.getDescription());
        }
    }

    private void setClassModifier() {
        // CHeck for class modifier if not present set the default value.
        setCliOption(classModifier);

        // If class modifier is abstract then the methods need to be abstract too.
        if ("abstract".equals(classModifier.getOptValue())) {
            operationModifier.setOptValue(classModifier.getOptValue());
            additionalProperties.put(OPERATION_MODIFIER, operationModifier.getOptValue());
            LOGGER.warn("classModifier is {} so forcing operationModifier to {}", classModifier.getOptValue(), operationModifier.getOptValue());
        }
    }

    private void setOperationModifier() {
        setCliOption(operationModifier);

        // If operation modifier is abstract then dont generate any body
        if ("abstract".equals(operationModifier.getOptValue())) {
            generateBody = false;
            additionalProperties.put(GENERATE_BODY, generateBody);
            LOGGER.warn("operationModifier is {} so forcing generateBody to {}", operationModifier.getOptValue(), generateBody);
        } else if (additionalProperties.containsKey(GENERATE_BODY)) {
            generateBody = convertPropertyToBooleanAndWriteBack(GENERATE_BODY);
        } else {
            additionalProperties.put(GENERATE_BODY, generateBody);
        }
    }

    private void setModelClassModifier() {
        setCliOption(modelClassModifier);

        // If operation modifier is abstract then dont generate any body
        if (isLibrary) {
            modelClassModifier.setOptValue("");
            additionalProperties.put(MODEL_CLASS_MODIFIER, modelClassModifier.getOptValue());
            LOGGER.warn("buildTarget is {} so removing any modelClassModifier ", buildTarget.getOptValue());
        }
    }

    private void setNetCoreVersion(String packageFolder) {
        setCliOption(netCoreVersion);

        LOGGER.info("ASP.NET core version: {}", netCoreVersion.getOptValue());
    }

    private void setAzureFunctionsVersion() {
        setCliOption(azureFunctionsVersion);
        String functionsSDKVersion = "3.0.13";

        if ("v4".equals(azureFunctionsVersion.getOptValue())) {
            functionsSDKVersion = "4.0.1";

            if (!netCoreVersion.getOptValue().startsWith("6.")) {
                LOGGER.warn("ASP.NET core version: {} is not compatible with Azure functions v4. Using version 6.0.", netCoreVersion.getOptValue());
                netCoreVersion.setOptValue("6.0");
            }
        }

        additionalProperties.put(FUNCTIONS_SDK_VERSION, functionsSDKVersion);

        //set .NET target version
        String targetFrameworkVersion = "net" + netCoreVersion.getOptValue();
        additionalProperties.put(TARGET_FRAMEWORK, targetFrameworkVersion);
        setAddititonalPropertyForFramework();
    }

    private void setAddititonalPropertyForFramework() {
        if (((String)additionalProperties.get(TARGET_FRAMEWORK)).startsWith("net6.0")) {
            additionalProperties.put(NET_60_OR_LATER, true);
        }
    }

    private void setOperationIsAsync() {
        if (isLibrary) {
            operationIsAsync = false;
            additionalProperties.put(OPERATION_IS_ASYNC, operationIsAsync);
        } else if (additionalProperties.containsKey(OPERATION_IS_ASYNC)) {
            operationIsAsync = convertPropertyToBooleanAndWriteBack(OPERATION_IS_ASYNC);
        } else {
            additionalProperties.put(OPERATION_IS_ASYNC, operationIsAsync);
        }
    }

    private void setUseNewtonsoft() {
        if (additionalProperties.containsKey(USE_NEWTONSOFT)) {
            useNewtonsoft = convertPropertyToBooleanAndWriteBack(USE_NEWTONSOFT);
        } else {
            additionalProperties.put(USE_NEWTONSOFT, useNewtonsoft);
        }
    }

    private void setApiBasePath() {
        URL url = URLPathUtils.getServerURL(openAPI, serverVariableOverrides());
        String apiBasePath = encodePath(url.getPath()).replaceAll("/$", "");

        // if a base path exists, remove leading '/' and append trailing '/'
        if (apiBasePath != null && apiBasePath.length() > 0) {
            if (apiBasePath.startsWith("/"))
                apiBasePath = apiBasePath.substring(1);

            if (apiBasePath.endsWith("/"))
                apiBasePath = apiBasePath.substring(0, apiBasePath.lastIndexOf("/"));
        }

        additionalProperties.put("apiBasePath", apiBasePath);
    }
}
