/* 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;

namespace ApiGenerator.Domain.Specification
{

    // Rename this type to Deprecation and remove Path duplication
    public class DeprecatedPath
    {
        public string Version { get; set; }
        public string Path { get; set; }
        public string Description { get; set; }
    }


    public class UrlPart
    {
        private string _description;

        public string Argument => $"{LowLevelTypeName} {NameAsArgument}";

        public string LowLevelTypeName
        {
            get
            {
                //TODO treat list with fixed options as Flags Enum
                switch (Type)
                {
                    case "int": //does not occur on part
                    case "number": //does not occur on part
                    case "string":
                        return Type;
                    case "list":
                        return "string";
                    case "enum":
                        return Name.ToPascalCase();
                    default:
                        return Type;
                }
            }
        }

        public string HighLevelTypeName
        {
            get
            {
                if (ClrTypeNameOverride != null) return ClrTypeNameOverride;

                switch (Name)
                {
                    case "category_id": return "LongId";
                    case "timestamp": return "Timestamp";
                    case "index_metric": return "IndexMetrics";
                    case "metric": return "Metrics";

                    case "node_id" when Type == "list":
                        return "NodeIds";

                    case "fields" when Type == "list":
                        return "Fields";

                    case "parent_task_id":
                    case "task_id":
                        return "TaskId";

                    case "forecast_id":
                    case "action_id":
                    case "ids" when Type == "list":
                        return "Ids";

                    case "index":
                    case "new_index":
                    case "target":
                        return Type == "string" ? "IndexName" : "Indices";

                    case "job_id":
                    case "calendar_id":
                    case "event_id":
                    case "snapshot_id":
                    case "filter_id":
                    case "model_id":
                    case "id":
                        return "Id";

                    case "policy_id":
                        return Type == "string" ? "Id" : "Ids";

                    case "application":
                    case "repository":
                    case "snapshot":
                    case "target_snapshot":
                    case "user":
                    case "username":
                    case "realms":
                    case "alias":
                    case "context":
                    case "name":
                    case "thread_pool_patterns":
                    case "type":
                        return Type == "string" ? "Name" : "Names";

                    case "block":
                        return "IndexBlock";

                    case "index_uuid":
                        return "IndexUuid";

                    //This forces a compilation error post code generation as intended
                    default: return Type + "_";
                }
            }
        }

        public string ClrTypeNameOverride { get; set; }

        public string Description
        {
            get => _description;
            set => _description = CleanUpDescription(value);
        }

        public string InterfaceName
        {
            get
            {
                switch (Name)
                {
                    case "repository": return "RepositoryName";
                    default: return Name.ToPascalCase();
                }
            }
        }

        public string Name { get; set; }
        public string NameAsArgument => Name.ToCamelCase();
        public IEnumerable<string> Options { get; set; }
        public bool Required { get; set; }
        public bool Deprecated { get; set; }
        public string Type { get; set; }

        private string CleanUpDescription(string value)
        {
            if (string.IsNullOrWhiteSpace(value)) return value;

            return value.Replace("use `_all` or empty string", "use the special string `_all` or Indices.All");
        }
    }
}