// OpenTween - Client of Twitter
// Copyright (c) 2019 kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
// All rights reserved.
//
// This file is part of OpenTween.
//
// This program 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/>, or write to
// the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
// Boston, MA 02110-1301, USA.

#nullable enable

using System.Collections.ObjectModel;
using System.Diagnostics.CodeAnalysis;
using System.Linq;

namespace OpenTween.Models
{
    public class TabCollection : KeyedCollection<string, TabModel>, IReadOnlyTabCollection
    {
        public int IndexOf(string tabName)
            => this.Items.FindIndex(x => x.TabName == tabName);

        public bool TryGetValue(string tabName, [NotNullWhen(true)] out TabModel? tab)
        {
            if (this.Dictionary is { } dict)
                return dict.TryGetValue(tabName, out tab);

            tab = this.Items.FirstOrDefault(x => x.TabName == tabName);

            return tab != null;
        }

        protected override string GetKeyForItem(TabModel tab)
            => tab.TabName;
    }
}
