using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Globalization;
using TBF.Resources;

namespace TBF
{
    /// <summary>
    /// Dialog to edit local settings that specify UI preferences, language, etc. (S1.1)
    /// </summary>
    public partial class PreferencesDlg : Form
    {
        // Local copy of 'local settings' initialized to Program.localSettings.
        // Dialog modifies this copy and updates Program.localSettings just
        // when 'OK' is pressed.
        LocalSettings localSettings;

        public PreferencesDlg()
        {
            localSettings = new LocalSettings();
            localSettings.Assign(Program.LocalSettings);

            InitializeComponent();

            // Initialize the list box with langauges
            for (int i = 0; i < (int)LocalSettings.Languages.Count; i++)
            {
                languageListBox.Items.Add(((LocalSettings.Languages)i).ToString());
            }
            languageListBox.Text = localSettings.Language;
        }

        private void languageListBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            localSettings.Language = ((LocalSettings.Languages)languageListBox.SelectedIndex).ToString();
        }

        /// <summary>
        /// Update setting, return DialogResult.OK
        /// </summary>
        /// <param name="sender">Not used</param>
        /// <param name="e">Not used</param>
        private void okButton_Click(object sender, EventArgs e)
        {
            Program.LocalSettings.Assign(localSettings);    // Update 'global' local settings
            DialogResult = DialogResult.OK;
            Close();

            System.Threading.Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo(localSettings.Language);
            DialogResult response = MessageBox.Show(Strings.Restart_To_Apply_Changes);
            return;
        }

        /// <summary>
        /// Throw away changes, return DialogResult.Cancel
        /// </summary>
        /// <param name="sender">Not used</param>
        /// <param name="e">Not used</param>
        private void cancelButton_Click(object sender, EventArgs e)
        {
            DialogResult = DialogResult.Cancel;
            Close();
            return;
        }
    }
}