// Copyright (C) Stichting Deltares 2025. 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 System.Collections.Generic;
using NetTopologySuite.Features;

namespace Deltares.Maps;

public class AttributesDictionary : IAttributesTable
{
    private readonly IAttributesTable attributes;
    private readonly Dictionary<string, string> attributeNames = new Dictionary<string, string>();

    public AttributesDictionary(IAttributesTable table)
    {
        attributes = table;
    }

    #region Implementation of IAttributesTable

    private static void ThrowArgumentNullExceptionWhenAttributeIsNullOrEmpty(string attributeName)
    {
        if (string.IsNullOrEmpty(attributeName))
        {
            throw new ArgumentNullException("attributeName");
        }
    }

    public void Add(string attributeName, object value)
    {
        ThrowArgumentNullExceptionWhenAttributeIsNullOrEmpty(attributeName);

        if (value == null)
        {
            throw new ArgumentNullException("value");
        }

        attributes.Add(attributeName, value);
    }

    public void DeleteAttribute(string attributeName)
    {
        ThrowArgumentNullExceptionWhenAttributeIsNullOrEmpty(attributeName);

        string attrName = GetExistingName(attributeName);
        if (attributes.Exists(attrName))
        {
            attributes.DeleteAttribute(attrName);
        }
    }

    public Type GetType(string attributeName)
    {
        ThrowArgumentNullExceptionWhenAttributeIsNullOrEmpty(attributeName);

        string attrName = GetExistingName(attributeName);
        return this[attrName].GetType();
    }

    public bool Exists(string attributeName)
    {
        ThrowArgumentNullExceptionWhenAttributeIsNullOrEmpty(attributeName);

        return !string.IsNullOrEmpty(GetExistingName(attributeName));
    }

    public string[] GetNames()
    {
        return attributes.GetNames();
    }

    public object[] GetValues()
    {
        return attributes.GetValues();
    }

    public object GetOptionalValue(string attributeName)
    {
        return null;
    }

    public object this[string attributeName]
    {
        get
        {
            ThrowArgumentNullExceptionWhenAttributeIsNullOrEmpty(attributeName);

            string attrName = GetExistingName(attributeName);
            return attributes[attrName];
        }
        set
        {
            ThrowArgumentNullExceptionWhenAttributeIsNullOrEmpty(attributeName);

            string attrName = GetExistingName(attributeName);
            attributes[attrName] = value;
        }
    }

    public int Count
    {
        get
        {
            return attributes.Count;
        }
    }

    private string GetExistingName(string name)
    {
        if (!attributeNames.ContainsKey(name))
        {
            attributeNames[name] = string.Empty;
            foreach (string existingName in attributes.GetNames())
            {
                if (existingName.Equals(name, StringComparison.OrdinalIgnoreCase))
                {
                    attributeNames[name] = existingName;
                }
            }
        }

        return attributeNames[name];
    }

    #endregion
}