using System;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace Shared.Phone.UserCenter
{
    /// <summary>
    /// 个人中心的共通基层画面，继承于此共通的画面，请使用AddForm()函数，
    /// 或者AddFromAndRemoveNowForm()函数实现添加画面，然后在各自的画面中，
    /// 实现一个ShowForm()的函数(参数由添加画面时，使用的函数的参数指定)
    /// </summary>
    public class EditorCommonForm : CommonFormBase
    {
        #region ■ 变量声明___________________________

        /// <summary>
        /// TopMenuFrameLayout
        /// </summary>
        public FrameLayout topMenuFrameLayout = null;
        /// <summary>
        /// TopFrameLayout
        /// </summary>
        public FrameLayout topFrameLayout = null;
        /// <summary>
        /// bodyFrameLayout
        /// </summary>
        public FrameLayout bodyFrameLayout = null;
        /// <summary>
        /// 缓存启动参数
        /// </summary>
        private object[] m_parameter = null;

        #endregion

        #region ■ 初始化_____________________________

        /// <summary>
        /// 初始化界面框架
        /// </summary>
        public override void InitForm()
        {
            base.InitForm();

            //初始化头部控件
            this.InitTopFrameLayout();

            //初始化中部控件
            this.InitBodyFrameLayout();
        }

        /// <summary>
        /// 执行ShowForm()方法
        /// </summary>
        /// <param name="parameter">启动参数</param>
        public override void LoadShowFormMethod(params object[] parameter)
        {
            this.m_parameter = parameter;
            base.LoadShowFormMethod(parameter);
        }

        #endregion

        #region ■ 初始化界面_________________________

        #region ■ Top________________________________

        /// <summary>
        /// 初始化头部控件
        /// </summary>
        public void InitTopFrameLayout()
        {
            if (topFrameLayout != null)
            {
                topFrameLayout.RemoveAll();
            }

            //TopMenuFrameLayout做成
            topMenuFrameLayout = new FrameLayout();
            topMenuFrameLayout.Height = ControlCommonResourse.TopMenuFrameHeight;
            topMenuFrameLayout.BackgroundColor = UserCenterColor.Current.TopFrameLayout;
            topMenuFrameLayout.Name = "topMenuFrameLayout";
            this.AddChidren(topMenuFrameLayout);

            //TopFrameLayout做成
            topFrameLayout = new FrameLayout();
            topFrameLayout.Height = ControlCommonResourse.TopFrameHeight;
            topFrameLayout.BackgroundColor = UserCenterColor.Current.TopFrameLayout;
            topFrameLayout.Y = topMenuFrameLayout.Bottom;
            topFrameLayout.Name = "topFrameLayout";
            this.AddChidren(topFrameLayout);

            //线
            var btnLine = new NormalViewControl(topFrameLayout.Width, 1, false);
            btnLine.BackgroundColor = 0x40000000;
            btnLine.Y = topFrameLayout.Height - 1;
            topFrameLayout.AddChidren(btnLine);

            //返回键
            var btnBack = new BackViewControl();
            topFrameLayout.AddChidren(btnBack);
            btnBack.InitControl();
            btnBack.ButtonClickEvent += (sender, e) =>
            {
                //画面关闭
                this.CloseForm();
            };
            topFrameLayout.AddTag("btnBack", btnBack);

            //标题
            var txttitle = new TopLayoutTitleControl();
            topFrameLayout.AddChidren(txttitle);
            //粗体
            txttitle.IsBold = true;
            topFrameLayout.AddTag("txtTitle", txttitle);
        }

        #endregion

        #region ■ Middle_____________________________

        /// <summary>
        /// 初始化中部控件
        /// </summary>
        public void InitBodyFrameLayout()
        {
            if (bodyFrameLayout != null)
            {
                bodyFrameLayout.RemoveAll();
            }
            bodyFrameLayout = new FrameLayout();
            bodyFrameLayout.Height = ControlCommonResourse.BodyFrameHeight;
            bodyFrameLayout.Y = topFrameLayout.Bottom;
            bodyFrameLayout.BackgroundColor = UserCenterColor.Current.BodyFrameLayout;
            bodyFrameLayout.Name = "bodyFrameLayout";
            this.AddChidren(bodyFrameLayout);
        }

        #endregion

        #endregion

        #region ■ 添加界面___________________________

        /// <summary>
        /// 添加画面,启动参数由指定画面的ShowForm函数所指定
        /// </summary>
        /// <param name="parameter">启动参数：参数由指定画面的ShowForm函数所指定</param>
        public override void AddForm(params object[] parameter)
        {
            //检测能否追加画面
            if (UserCenterLogic.CheckCanAddForm(this) == false)
            {
                return;
            }

            UserView.HomePage.Instance.AddChidren(this);
            UserView.HomePage.Instance.PageIndex += 1;

            //初始化界面框架
            this.InitForm();

            //执行ShowForm()方法
            this.LoadShowFormMethod(parameter);
        }

        #endregion

        #region ■ 关闭界面___________________________

        /// <summary>
        /// 画面关闭
        /// </summary>
        public override void CloseFormBefore()
        {
            this.m_parameter = null;
            //清空bodyFrame
            this.ClearBodyFrame();

            base.CloseFormBefore();
        }

        #endregion

        #region ■ 显示重新加载_______________________

        /// <summary>
        /// 显示重新加载的界面(主要是用在界面加载错误时，再次加载)
        /// </summary>
        public override void ShowReLoadView()
        {
            Application.RunOnMainThread(() =>
            {
                if (bodyFrameLayout == null || bodyFrameLayout.Parent == null)
                {
                    return;
                }
                //切换为重新加载模式时的事件
                this.ReLoadModelEventMethod();

                var frame = new FrameLayout();
                frame.BackgroundColor = UserCenterColor.Current.White;
                bodyFrameLayout.AddChidren(frame);

                //重新加载
                var btnReLoad = new BottomClickButton();
                btnReLoad.Gravity = Gravity.Center;
                btnReLoad.TextID = R.MyInternationalizationString.uDoReload;
                frame.AddChidren(btnReLoad);
                btnReLoad.ButtonClickEvent += (sender, e) =>
                {
                    //清除全部控件
                    this.ClearBodyFrame();

                    //执行ShowForm()方法实现重新加载
                    this.LoadShowFormMethod(this.m_parameter);
                };

                //清除topFrameLayout的非默认的控件
                var list = new List<View>();
                for (int i = 0; i < topFrameLayout.ChildrenCount; i++)
                {
                    var view = topFrameLayout.GetChildren(i);
                    if (view.Name == "btnBack" || view.Name == "txtTitle")
                    {
                        //这里是默认的底层控件
                        continue;
                    }
                    list.Add(view);
                }
                foreach (var view in list)
                {
                    view?.RemoveFromParent();
                }
            });
        }

        /// <summary>
        /// 切换为【重新加载模式】时的事件函数,旨在关闭所有线程信息
        /// </summary>
        public virtual void ReLoadModelEventMethod()
        {
        }

        #endregion

        #region ■ 添加帮助控件_______________________

        /// <summary>
        /// 添加查看帮助控件
        /// </summary>
        /// <returns></returns>
        public NormalViewControl AddHelpControl()
        {
            //查看帮助
            var btnHelp = new NormalViewControl(bodyFrameLayout.Width, Application.GetRealHeight(50), false);
            btnHelp.Y = Application.GetRealHeight(1388);
            btnHelp.TextSize = 12;
            btnHelp.TextAlignment = TextAlignment.Center;
            btnHelp.TextColor = UserCenterColor.Current.TextOrangeColor;
            btnHelp.Text = Language.StringByID(R.MyInternationalizationString.uSearchHelp);
            bodyFrameLayout.AddChidren(btnHelp);
            //底线
            int lineWidth = btnHelp.GetRealWidthByText();
            var btnLine = new NormalViewControl(lineWidth, ControlCommonResourse.BottomLineHeight, false);
            btnLine.BackgroundColor = UserCenterColor.Current.TextOrangeColor;
            btnLine.Gravity = Gravity.CenterHorizontal;
            btnLine.Y = btnHelp.Bottom - Application.GetRealHeight(8);
            bodyFrameLayout.AddChidren(btnLine);

            return btnHelp;
        }

        #endregion

        #region ■ 显示没有数据的图像显示特效_________

        /// <summary>
        /// 显示没有数据的图像显示特效
        /// </summary>
        /// <param name="frameTable">容器</param>
        /// <param name="i_Text">显示文字</param>
        /// <param name="Imagepath">图像地址</param>
        /// <param name="imageWith">图像宽度(非真实值)</param>
        /// <param name="imageHeight">图像高度(非真实值)</param>
        public void ShowNotDataImage(FrameLayout frameTable, string i_Text, string Imagepath = "Item/NoFunction.png", int imageWith = 683, int imageHeight = 392)
        {
            this.ShowNotDataImage(frameTable, new string[] { i_Text }, Imagepath, imageWith, imageHeight);
        }

        /// <summary>
        /// 显示没有数据的图像显示特效
        /// </summary>
        /// <param name="frameTable">容器</param>
        /// <param name="listText">显示文字</param>
        /// <param name="Imagepath">图像地址</param>
        /// <param name="imageWith">图像宽度(非真实值)</param>
        /// <param name="imageHeight">图像高度(非真实值)</param>
        public void ShowNotDataImage(FrameLayout frameTable, string[] listText, string Imagepath = "Item/NoFunction.png", int imageWith = 683, int imageHeight = 392)
        {
            var btnPic = new PicViewControl(imageWith, imageHeight);
            btnPic.UnSelectedImagePath = Imagepath;
            btnPic.Y = (int)(frameTable.Height * 0.382) - Application.GetRealHeight(imageHeight / 2);
            btnPic.Gravity = Gravity.CenterHorizontal;
            frameTable.AddChidren(btnPic);

            int yy = btnPic.Bottom + Application.GetRealHeight(32);
            for (int i = 0; i < listText.Length; i++)
            {
                var btnView = new NormalViewControl(frameTable.Width, Application.GetRealHeight(50), false);
                btnView.Y = yy;
                btnView.Text = listText[i];
                btnView.TextAlignment = TextAlignment.Center;
                btnView.TextSize = 12;
                btnView.TextColor = UserCenterColor.Current.TextGrayColor1;
                frameTable.AddChidren(btnView);

                yy = btnView.Bottom;
            }
        }

        #endregion

        #region ■ 界面重新激活事件___________________

        /// <summary>
        /// <para>自身的上层界面关闭后,它自身处于最上层时,触发的事件</para>
        /// <para>重写的时候返回值请返回1(返回值是给底层使用的)</para>
        /// </summary>
        public virtual int FormActionAgainEvent()
        {
            return -1;
        }

        #endregion

        #region ■ 清空BodyFrame______________________

        /// <summary>
        /// 清空BodyFrame
        /// </summary>
        public void ClearBodyFrame()
        {
            if (this.Parent == null)
            {
                return;
            }
            bodyFrameLayout?.RemoveAll();
        }

        #endregion

        #region ■ 一般的方法_________________________

        /// <summary>
        /// 设置标题信息
        /// </summary>
        /// <param name="title">Title.</param>
        public void SetTitleText(string title)
        {
            //设置头部信息
            var btntitle = (Button)topFrameLayout.GetTagByKey("txtTitle");
            btntitle.Text = title;
        }

        /// <summary>
        /// 移除返回键
        /// </summary>
        public void RemoveBackButton()
        {
            //移除返回键
            var back = (BackViewControl)topFrameLayout.GetTagByKey("btnBack");
            back?.RemoveFromParent();
        }

        #endregion
    }
}