using System;
using System.Collections.Generic;
using System.Text;

namespace Shared.Phone
{
    /// <summary>
    /// <para>场景和功能之间相互切换的Tab控件(完成初始化后,会根据默认选择调用回调函数)</para>
    /// <para>2020.03.10变更:它变更为文字型菜单控件</para>
    /// </summary>
    public class SceneFunctionSwitchControl : HorizontalScrolViewLayout
    {
        #region ■ 变量声明___________________________

        /// <summary>
        /// 选择事件(从0开始)
        /// </summary>
        public Action<int> SelectTabEvent = null;
        /// <summary>
        /// 前回选择的索引
        /// </summary>
        public int OldSelectIndex = 0;

        private int m_nowSelectIndex = 0;
        /// <summary>
        /// 当前选择的分支(从0开始)
        /// </summary>
        public int nowSelectIndex
        {
            get { return m_nowSelectIndex; }
        }

        /// <summary>
        ///  所有名字的控件
        /// </summary>
        private List<NormalViewControl> listNameControl = new List<NormalViewControl>();
        /// <summary>
        /// 所有线的控件
        /// </summary>
        private List<NormalViewControl> listLineControl = new List<NormalViewControl>();
        /// <summary>
        /// 默认的那个菜单
        /// </summary>
        private FrameLayoutStatuControl frameDefult = null;

        #endregion

        #region ■ 初始化_____________________________

        /// <summary>
        /// 场景和功能之间相互切换的Tab控件(完成初始化后,会根据默认选择调用回调函数)
        /// </summary>
        public SceneFunctionSwitchControl()
        {
            this.Height = Application.GetRealHeight(90);
        }

        /// <summary>
        ///  初始化控件(事件要至于它之前)
        /// </summary>
        /// <param name="listTitleText">菜单文字列表</param>
        /// <param name="rightSpace">右边空白宽度</param>
        public void InitControl(List<string> listTitleText, int rightSpace = 0)
        {
            if (listTitleText.Count == 0) { return; }
            this.listNameControl.Clear();
            this.listLineControl.Clear();

            var btnTemp = new NormalViewControl(10, 10, false);
            btnTemp.TextSize = 16;

            //做成头部菜单文字
            for (int i = 0; i < listTitleText.Count; i++)
            {
                btnTemp.Text = listTitleText[i];
                //添加标题控件
                this.AddTitleTextControl(i, listTitleText[i], btnTemp.GetRealWidthByText());
            }
            //添加右边空白宽度
            if (rightSpace > 0)
            {
                //添加一个间隔间距
                var frameSpace = new FrameLayout();
                frameSpace.Width = Application.GetRealWidth(rightSpace);
                this.AddChidren(frameSpace);
            }
            //回调方法
            this.frameDefult.ButtonClickEvent?.Invoke(null, null);
        }

        /// <summary>
        /// 添加标题控件
        /// </summary>
        /// <param name="i_index"></param>
        /// <param name="titleText"></param>
        private void AddTitleTextControl(int i_index, string titleText, int realWidth)
        {
            //添加一个间隔间距
            var frameSpace = new FrameLayout();
            frameSpace.Width = Application.GetRealWidth(58);
            this.AddChidren(frameSpace);

            //场景框(点击范围有点小，需要扩大它的点击范围)
            var frameBack = new FrameLayoutStatuControl();
            frameBack.UseClickStatu = false;
            frameBack.Width = realWidth;
            this.AddChidren(frameBack);
            //名称
            var btnName = new NormalViewControl(frameBack.Width, Application.GetRealHeight(63), false);
            btnName.Text = titleText;
            btnName.TextAlignment = TextAlignment.Center;
            if (m_nowSelectIndex == i_index)
            {
                this.frameDefult = frameBack;
                //选择状态
                btnName.TextSize = 16;
                btnName.IsBold = true;
                btnName.TextColor = UserCenterColor.Current.TextColor2;
            }
            else
            {
                btnName.TextColor = UserCenterColor.Current.TextGrayColor3;
            }
            frameBack.AddChidren(btnName, ChidrenBindMode.BindEvent);
            //添加缓存
            this.listNameControl.Add(btnName);

            //底线
            var btnLine = new NormalViewControl(40, 10, true);
            btnLine.Y = btnName.Bottom + Application.GetRealHeight(6);
            btnLine.X = btnName.X + btnName.Width / 2 - Application.GetRealWidth(40) / 2;
            btnLine.Radius = (uint)Application.GetRealHeight(10) / 2;
            btnLine.BackgroundColor = UserCenterColor.Current.TextOrangeColor;
            frameBack.AddChidren(btnLine, ChidrenBindMode.BindEvent);
            if (m_nowSelectIndex != i_index)
            {
                btnLine.Visible = false;
            }
            //添加缓存
            this.listLineControl.Add(btnLine);

            frameBack.ButtonClickEvent += (sender, e) =>
            {
                //选择的是同一个分支,则无效
                if (this.m_nowSelectIndex == i_index && e != null)
                {
                    //手动点击的才处理
                    return;
                }
                this.OldSelectIndex = this.m_nowSelectIndex;
                this.m_nowSelectIndex = i_index;
                //当前文字变色
                btnName.TextSize = 16;
                btnName.TextColor = UserCenterColor.Current.TextColor2;
                btnName.IsBold = true;
                btnLine.Visible = true;

                //还原其他的颜色
                for (int i = 0; i < listNameControl.Count; i++)
                {
                    if (this.m_nowSelectIndex != i)
                    {
                        listNameControl[i].TextSize = 14;
                        listNameControl[i].IsBold = false;
                        listNameControl[i].TextColor = UserCenterColor.Current.TextGrayColor3;

                        listLineControl[i].Visible = false;
                    }
                }
                this.SelectTabEvent?.Invoke(i_index);
            };
        }

        #endregion

        #region ■ 控件摧毁___________________________

        /// <summary>
        /// 控件摧毁
        /// </summary>
        public override void RemoveFromParent()
        {
            this.SelectTabEvent = null;
            if (this.Parent != null)
            {
                base.RemoveFromParent();
            }
        }

        /// <summary>
        /// ☆☆移除全部控件☆☆
        /// </summary>
        public override void RemoveAll()
        {
            if (this.Parent != null)
            {
                base.RemoveAll();
            }
        }

        #endregion

        #region ■ 一般方法___________________________

        /// <summary>
        /// 设置初始选择
        /// </summary>
        /// <param name="index">从0开始</param>
        public void SetDefultIndex(int index)
        {
            if (frameDefult != null && frameDefult.Parent != null)
            {
                if (index < this.listNameControl.Count)
                {
                    this.ScrollToViewIndex(index * 2 + 1);
                    //调用点击事件
                    this.listNameControl[index].ButtonClickEvent(null, null);
                }
                return;
            }
            this.m_nowSelectIndex = index;
        }

        #endregion
    }
}