/* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*
*  Licensed to Elasticsearch B.V. under one or more contributor
*  license agreements. See the NOTICE file distributed with
*  this work for additional information regarding copyright
*  ownership. Elasticsearch B.V. licenses this file to you 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
*
*   http://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.
*/

using System.Collections.Generic;
using System.Linq;
using ApiGenerator.Configuration;
using ApiGenerator.Domain.Specification;

namespace ApiGenerator.Domain.Code.HighLevel.Methods 
{
    public class BoundFluentMethod : FluentSyntaxBase
    {
        public BoundFluentMethod(CsharpNames names, IReadOnlyCollection<UrlPart> parts, bool selectorIsOptional, string link, string summary) 
            : base(names, parts, selectorIsOptional, link, summary) { }

        private string DescriptorTypeParams => string.Join(", ", CsharpNames.DescriptorGenerics
            .Select(e => CsharpNames.DescriptorBoundDocumentGeneric));
        
        private string RequestTypeParams => string.Join(", ", CsharpNames.SplitGeneric(CsharpNames.GenericsDeclaredOnRequest)
            .Select(e => CsharpNames.DescriptorBoundDocumentGeneric));

        private string SelectorReturn => string.IsNullOrWhiteSpace(CsharpNames.GenericsDeclaredOnRequest)
            || !CodeConfiguration.GenericOnlyInterfaces.Contains(CsharpNames.RequestInterfaceName)
                ? CsharpNames.RequestInterfaceName
                : $"{CsharpNames.RequestInterfaceName}<{RequestTypeParams}>";
        
        public override string DescriptorName => $"{CsharpNames.DescriptorName}<{DescriptorTypeParams}>";
        public override string GenericWhereClause => $"where {CsharpNames.DescriptorBoundDocumentGeneric} : class";
        public override string MethodGenerics => $"<{CsharpNames.DescriptorBoundDocumentGeneric}>";
        
        public override string RequestMethodGenerics => !string.IsNullOrWhiteSpace(RequestTypeParams) 
            ? $"<{RequestTypeParams}>"
            : base.RequestMethodGenerics;
        
        public override string Selector => $"Func<{DescriptorName}, {SelectorReturn}>";
        

    }
}