using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace Xylem.Common.Utils.UiLanguageControl
{
    /// <summary>
    /// Change language at runtime
    /// </summary>
    /// <remarks date="2021-Feb-23" author="Thomas Wiedebusch">
    /// - Initial based on code example from stackoverflow
    /// </remarks>
    [Serializable]
    public static class ToolStripExtensions
    {
        /// <summary>
        /// Change language at runtime
        /// </summary>
        /// <remarks date="2021-Feb-23" author="Thomas Wiedebusch">
        /// - Initial based on code example
        ///  https://stackoverflow.com/questions/52178064/winforms-localization-how-to-change-the-language-of-a-menu.
        /// </remarks>
        public static IEnumerable<ToolStripItem> AllItems(this ToolStrip toolStrip)
        {
            return toolStrip.Items.Flatten();
        }

        /// <summary>
        /// Change language at runtime
        /// </summary>
        /// <remarks date="2021-Feb-23" author="Thomas Wiedebusch">
        /// - Initial based on code example
        ///  https://stackoverflow.com/questions/52178064/winforms-localization-how-to-change-the-language-of-a-menu.
        /// </remarks>
        public static IEnumerable<ToolStripItem> Flatten(this ToolStripItemCollection items)
        {
            foreach (ToolStripItem item in items)
            {
                if (item is ToolStripDropDownItem)
                    foreach (var subItem in
                        ((ToolStripDropDownItem)item).DropDownItems.Flatten())
                        yield return subItem;
                yield return item;
            }
        }
    }
}