using System.Collections;
using System.Windows;
using HandyControl.Controls;

namespace TeamAAS.Dialogs.Dialogs
{
    /// <summary>
    /// 选择对话框，用于让用户从列表中选择一项。
    /// 通过 DialogHelper.Select 调用。
    /// </summary>
    public partial class SelectDialog
    {
        /// <summary>用户选中的项，点击确定后有效；未选择为 null</summary>
        public object SelectedItem { get; private set; }

        /// <summary>用户是否点击了确定</summary>
        public bool Result { get; private set; }

        public SelectDialog()
        {
            InitializeComponent();
            UiScaler.Attach(this); // 分辨率/DPI 自适应
        }

        /// <summary>
        /// 配置选择对话框。
        /// </summary>
        /// <param name="label">提示文本</param>
        /// <param name="items">可选项列表</param>
        /// <param name="title">窗口标题</param>
        /// <param name="defaultItem">默认选中项</param>
        public void Setup(string label, IEnumerable items, string title = "选择", object defaultItem = null)
        {
            Title = title;
            LabelText.Text = label;

            SelectBox.Items.Clear();
            foreach (var item in items)
            {
                SelectBox.Items.Add(item);
            }

            if (defaultItem != null)
            {
                SelectBox.SelectedItem = defaultItem;
            }
            else if (SelectBox.Items.Count > 0)
            {
                SelectBox.SelectedIndex = 0;
            }
        }

        private void BtnOK_Click(object sender, RoutedEventArgs e)
        {
            SelectedItem = SelectBox.SelectedItem;
            Result = true;
            Close();
        }

        private void BtnCancel_Click(object sender, RoutedEventArgs e)
        {
            SelectedItem = null;
            Result = false;
            Close();
        }
    }
}