﻿// ----------------------------------------------------------------------------------
//
// Copyright Microsoft Corporation
// 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
// 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.
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namespace Microsoft.Azure.Commands.StorageSync.Evaluation.Validations.NamespaceValidations
{
    using Interfaces;

    public class MaximumFilenameLengthValidation : BaseNamespaceValidation
    {
        #region Fields and Properties
        private readonly int _maxFilenameLength;
        #endregion

        #region Constructors
        public MaximumFilenameLengthValidation(IConfiguration configuration): base(configuration, "Files/Directories over the name length limit", ValidationType.FilenameLength)
        {
            this._maxFilenameLength = configuration.MaximumFilenameLength();
        }
        #endregion

        #region Protected methods
        protected override IValidationResult DoValidate(IFileInfo node)
        {
            return this.ValidateInternal((INamedObjectInfo)node);
        }

        protected override IValidationResult DoValidate(IDirectoryInfo node)
        {
            return this.ValidateInternal((INamedObjectInfo)node);
        }
        #endregion

        #region Private methods

        private IValidationResult ValidateInternal(INamedObjectInfo node)
        {
            bool filenameIsTooLong = node.Name.Length > this._maxFilenameLength;

            if (filenameIsTooLong)
            {
                return new ValidationResult
                {
                    Result = Result.Fail,
                    Description = $"Filename {node.Name} is too long. Max length is {this._maxFilenameLength}",
                    Level = ResultLevel.Error,
                    Path = node.FullName,
                    Type = this.ValidationType

                };
            }

            return this.SuccessfulResult;
        }

        #endregion
    }
}