/*
  * Copyright (c) 2022 LG Electronics Inc.
  * SPDX-License-Identifier: LicenseRef-LGE-Proprietary
  */
using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;

namespace AuroraUIComponent.UserControls
{
    /// <summary>
    /// UCRadioGroup.xaml에 대한 상호 작용 논리
    /// </summary>
    public partial class UCRadioGroup : UserControl
    {
        public enum ePanelType { Uniform, StackVertical, StackHorizontal }
        public UCRadioGroup()
        {
            InitializeComponent();
        }

        public static readonly DependencyProperty ItemListProperty
               = DependencyProperty.Register(
                   nameof(ItemList),
                   typeof(List<string>),
                   typeof(UCRadioGroup), new FrameworkPropertyMetadata(
                       null,
                       FrameworkPropertyMetadataOptions.BindsTwoWayByDefault));

        public List<string> ItemList {
            get { return (List<string>)GetValue(ItemListProperty); }
            set { SetValue(ItemListProperty, value); }
        }

        public static readonly DependencyProperty GroupMarginProperty
               = DependencyProperty.Register(
                   nameof(GroupMargin),
                   typeof(Thickness),
                   typeof(UCRadioGroup), new FrameworkPropertyMetadata(
                       new Thickness(30,0,30,0),
                       FrameworkPropertyMetadataOptions.BindsTwoWayByDefault));

        public Thickness GroupMargin {
            get { return (Thickness)GetValue(GroupMarginProperty); }
            set { SetValue(GroupMarginProperty, value); }
        }


        public static readonly DependencyProperty RadioButtonMarginProperty
               = DependencyProperty.Register(
                   nameof(RadioButtonMargin),
                   typeof(Thickness),
                   typeof(UCRadioGroup), new FrameworkPropertyMetadata(
                       new Thickness(0, 0, 0, 0),
                       FrameworkPropertyMetadataOptions.BindsTwoWayByDefault));

        public Thickness RadioButtonMargin {
            get { return (Thickness)GetValue(RadioButtonMarginProperty); }
            set { SetValue(RadioButtonMarginProperty, value); }
        }

        public static readonly DependencyProperty SelectedItemProperty
             = DependencyProperty.Register(
                 nameof(SelectedItem),
                 typeof(string),
                 typeof(UCRadioGroup),new FrameworkPropertyMetadata(null, FrameworkPropertyMetadataOptions.BindsTwoWayByDefault
                 , OnSelectedItemChange));

        public string SelectedItem {
            get { return (string)GetValue(SelectedItemProperty); }
            set { SetValue(SelectedItemProperty, value); }
        }

        public static readonly DependencyProperty GroupBoxNameProperty
             = DependencyProperty.Register(
                 nameof(GroupBoxName),
                 typeof(string),
                 typeof(UCRadioGroup), new FrameworkPropertyMetadata(
                      null,
                      FrameworkPropertyMetadataOptions.BindsTwoWayByDefault));

        public string GroupBoxName {
            get { return (string)GetValue(GroupBoxNameProperty); }
            set { SetValue(GroupBoxNameProperty, value); }
        }
        public static readonly DependencyProperty DefaultCheckedProperty
             = DependencyProperty.Register(
                 nameof(DefaultChecked),
                 typeof(int),
                 typeof(UCRadioGroup), new FrameworkPropertyMetadata(
                      0,
                      FrameworkPropertyMetadataOptions.BindsTwoWayByDefault));

        public static readonly DependencyProperty PanelTypeProperty
           = DependencyProperty.Register(
               nameof(PanelType),
               typeof(ePanelType),
               typeof(UCRadioGroup),
              new PropertyMetadata(
                  ePanelType.StackHorizontal, OnPanelTypeChange));

        public ePanelType PanelType {
            get { return (ePanelType)GetValue(PanelTypeProperty); }
            set { SetValue(PanelTypeProperty, value); }
        }


        /// <summary>
        /// Group 중 가장 처음에 Checked 될 Index,  0 ~
        /// </summary>
        public int DefaultChecked {
            get { return (int)GetValue(DefaultCheckedProperty); }
            set { SetValue(DefaultCheckedProperty, value); }
        }


        #region UI Event
        private void RadioButton_Click(object sender, RoutedEventArgs e)
        {
            SelectedItem = (sender as RadioButton).Content.ToString();
        }
        private void UCRadioGroup_Loaded(object sender, RoutedEventArgs e)
        {
            if((sender as RadioButton).Content is string strContent && strContent == ItemList[DefaultChecked]) {
                (sender as RadioButton).IsChecked = true;
                SelectedItem = (sender as RadioButton).Content.ToString();
            }
        }
        private static void OnSelectedItemChange(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            if ((bool)d.GetValue(IsVisibleProperty) && e.OldValue != null) {
                if ((d as UCRadioGroup).RadioButtonsGroup.Items.Contains(e.NewValue) && (d as UCRadioGroup).RadioButtonsGroup.ItemContainerGenerator.Status != GeneratorStatus.NotStarted) {
                    var container = ((d as UCRadioGroup).RadioButtonsGroup.ItemContainerGenerator.ContainerFromItem(e.NewValue)) as ContentPresenter;
                    var rbtn = container.ContentTemplate.FindName("rBtn", container) as RadioButton;
                    rbtn.IsChecked = true;
                }
            }
        }

        private static void OnPanelTypeChange(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            if(Enum.IsDefined(typeof(ePanelType), e.NewValue)) {
                (d as UCRadioGroup).RadioButtonsGroup.ItemsPanel = (d as UCRadioGroup).RadioButtonsGroup.FindResource(e.NewValue.ToString()) as ItemsPanelTemplate;
            }
        }
        #endregion

    }
}