// Copyright (C) Stichting Deltares 2018. All rights reserved.
//
// This file is part of the application DAM - UI.
//
// DAM - UI is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// All names, logos, and references to "Deltares" are registered trademarks of
// Stichting Deltares and remain full property of Stichting Deltares at all times.
// All rights reserved.

using System;
using SPath = System.IO.Path;

namespace Deltares.Dam.Data.IO
{
    public abstract class AbstractExporter<T> : IExport
    {
        private string name;
        private string path;

        protected AbstractExporter(string name) 
            : this(name, ".")
        {
        }

        protected AbstractExporter(string name, string outputPath) 
            : this(name, outputPath, default(T))
        {
        }

        protected AbstractExporter(string name, string outputPath, T data)
        {
            this.name = name;
            this.path = outputPath;
            this.Data = data;
        }

        #region Implementation of IExport

        /// <summary>
        /// Sets the name of the file without extension
        /// </summary>
        public string Name
        {
            protected get { return this.name; }
            set { this.name = value; }
        }

        /// <summary>
        /// Sets the path of the output folder
        /// </summary>
        public string Path
        {
            set { this.path = value; }
            protected get { return this.path; }
        }

        /// <summary>
        /// Sets the data to export
        /// </summary>
        object IExport.Data { set { this.Data = (T)value; } }

        /// <summary>
        /// Sets the data to export
        /// </summary>
        public T Data { set; protected get; }

        /// <summary>
        /// Gets or sets the name of the file which will be set/combined by Path + Name + Extension in the export method
        /// </summary>
        public string FileName { get; private set; }

        /// <summary>
        /// Gets or sets the file extension 
        /// </summary>
        protected string FileExtension { private get; set; }

        /// <summary>
        /// Exports the data to files in the current folder
        /// </summary>
        public void Export()
        {
            if (string.IsNullOrEmpty(this.path))
                throw new InvalidOperationException("path");

            if (string.IsNullOrEmpty(this.name) || this.name.Trim() == "")
                throw new InvalidOperationException("No name given for the file to export to");

            this.FileName = SPath.Combine(path, name + this.FileExtension);

            Export(this.FileName, this.Data);
        }

        #endregion

        protected virtual void Export(string fileName, T data)
        {
        }

    }
}