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

namespace Shared.Phone.UserCenter
{
    /// <summary>
    /// 密码输入控件(自制的手动按键输入类型,请实现【ActionPswFinish】事件)
    /// </summary>
    public class PsswordInputControl : FrameLayout
    {
        #region ■ 变量声明___________________________

        /// <summary>
        /// 密码输入完成的事件
        /// </summary>
        public Action<string> ActionPswFinish = null;
        /// <summary>
        /// 界面点击取消时的事件
        /// </summary>
        public Action ActionCancel = null;
        /// <summary>
        /// 密码长度
        /// </summary>
        private int passwordLength = 0;
        /// <summary>
        /// 输入的密码
        /// </summary>
        private string inputPassword = string.Empty;
        /// <summary>
        /// 标题控件
        /// </summary>
        private NormalViewControl btnTitle = null;
        /// <summary>
        /// 错误信息提示控件
        /// </summary>
        private NormalViewControl btnError = null;
        /// <summary>
        /// 删除控件
        /// </summary>
        private NormalViewControl btnDelete = null;
        /// <summary>
        /// 密码图标控件集合
        /// </summary>
        private List<NormalViewControl> listPswIcon = new List<NormalViewControl>();

        #endregion

        #region ■ 初始化_____________________________

        /// <summary>
        /// 密码输入控件(自制的手动按键输入类型,请实现【ActionPswFinish】事件)
        /// </summary>
        /// <param name="i_title">初始标题文本信息</param>
        /// <param name="i_passwordLength">密码长度,默认4位</param>
        public PsswordInputControl(string i_title, int i_passwordLength = 4)
        {
            this.Height = ControlCommonResourse.BodyFrameHeight;
            this.passwordLength = i_passwordLength;
            this.btnTitle = new NormalViewControl(Application.CurrentWidth, Application.GetRealWidth(72), false);
            btnTitle.Text = i_title;
        }

        /// <summary>
        /// 初始化控件
        /// </summary>
        public void InitControl()
        {
            //标题
            btnTitle.Y = Application.GetRealHeight(104);
            btnTitle.TextAlignment = TextAlignment.Center;
            btnTitle.TextSize = 18;
            this.AddChidren(btnTitle);

            //初始化密码图标
            this.InitPswIconControl();

            //错误信息提示
            this.btnError = new NormalViewControl(Application.CurrentWidth, Application.GetRealHeight(49), false);
            btnError.Y = Application.GetRealHeight(302);
            btnError.TextAlignment = TextAlignment.Center;
            btnError.TextColor = 0xfff75858;
            btnError.TextSize = 12;
            this.AddChidren(btnError);

            //初始化数字表盘
            this.InitNumberTableControl();

            //删除控件
            this.btnDelete = new NormalViewControl(200, 90, true);
            btnDelete.X = Application.GetRealWidth(794);
            btnDelete.Y = Application.GetRealHeight(1559);
            btnDelete.TextColor = UserCenterColor.Current.TextGrayColor1;
            btnDelete.TextAlignment = TextAlignment.Center;
            btnDelete.TextID = R.MyInternationalizationString.uCancel;
            this.AddChidren(btnDelete);
            btnDelete.ButtonClickEvent += (sender, e) =>
            {
                if (inputPassword == string.Empty)
                {
                    //调用取消回调函数
                    ActionCancel?.Invoke();
                    return;
                }
                //取消一位密码
                inputPassword = inputPassword.Substring(0, inputPassword.Length - 1);
                listPswIcon[inputPassword.Length].BackgroundColor = UserCenterColor.Current.Transparent;

                if (inputPassword == string.Empty)
                {
                    //将文字从删除变更为取消
                    btnDelete.TextID = R.MyInternationalizationString.uCancel;
                }
            };
        }

        #endregion

        #region ■ 初始化密码图标_____________________

        /// <summary>
        /// 初始化密码图标
        /// </summary>
        private void InitPswIconControl()
        {
            //图标大小
            int iconSize = Application.GetMinRealAverage(36);
            //图标间的间隔
            int space = Application.GetMinRealAverage(100);
            //计算密码个数是否越界
            int value = Application.CurrentWidth - iconSize * passwordLength;
            if (passwordLength > 1)
            {
                value = value / (passwordLength - 1);
            }
            if (value < space)
            {
                //越界时,调整间距
                space = value;
            }

            var frameBack = new FrameLayout();
            frameBack.Height = iconSize;
            frameBack.Width = iconSize * passwordLength + space * (passwordLength - 1);
            frameBack.Y = Application.GetRealHeight(232);
            frameBack.Gravity = Gravity.CenterHorizontal;
            this.AddChidren(frameBack);

            for (int i = 0; i < passwordLength; i++)
            {
                var btnIcon = new NormalViewControl(iconSize, iconSize, false);
                btnIcon.BorderWidth = 1;
                btnIcon.BorderColor = 0xff999999;
                btnIcon.Radius = (uint)iconSize / 2;
                if (listPswIcon.Count > 0)
                {
                    btnIcon.X = listPswIcon[listPswIcon.Count - 1].Right + space;
                }
                frameBack.AddChidren(btnIcon);
                listPswIcon.Add(btnIcon);
            }
        }

        #endregion

        #region ■ 初始化数字表盘_____________________

        /// <summary>
        /// 初始化数字表盘
        /// </summary>
        private void InitNumberTableControl()
        {
            var frameBack = new FrameLayout();
            frameBack.Y = Application.GetRealHeight(418);
            frameBack.Width = Application.GetMinRealAverage(792);
            frameBack.Height = Application.GetMinRealAverage(974);
            frameBack.Gravity = Gravity.CenterHorizontal;
            this.AddChidren(frameBack);

            //前一个控件的右坐标
            int btnTempRight = 0;
            //间距
            int space = Application.GetMinRealAverage(104);
            //1到9的数字盘
            for (int i = 1; i <= 9; i++)
            {
                var btnNum = this.InitNumberControl();
                btnNum.Text = i.ToString();
                if (btnTempRight != 0)
                {
                    btnNum.X = btnTempRight + space;
                }

                frameBack.AddChidren(btnNum);
                btnNum.Y = (i - 1) / 3 * (btnNum.Height + Application.GetMinRealAverage(63));
                btnNum.ButtonClickEvent += (sender, e) =>
                {
                    //点击数字按键
                    this.btnNumClickEvent(sender.Text);
                };
                btnTempRight = btnNum.Right;
                if (i % 3 == 0)
                {
                    //清空
                    btnTempRight = 0;
                }
            }

            //0的数字盘
            var btnNum0 = this.InitNumberControl();
            btnNum0.X = frameBack.GetChildren(0).Height + space;
            btnNum0.Text = "0";

            frameBack.AddChidren(btnNum0);
            btnNum0.Y = 3 * (frameBack.GetChildren(0).Height + Application.GetMinRealAverage(63));
            btnNum0.ButtonClickEvent += (sender, e) =>
            {
                //点击数字按键
                this.btnNumClickEvent("0");
            };
        }

        /// <summary>
        /// 初始化数字控件
        /// </summary>
        /// <returns></returns>
        private NormalClickButton InitNumberControl()
        {
            int iconSize = Application.GetMinRealAverage(196);
            var btnNum = new NormalClickButton(iconSize, iconSize, false);
            btnNum.BackgroundColor = UserCenterColor.Current.White;
            btnNum.Radius = (uint)iconSize / 2;
            btnNum.TextColor = UserCenterColor.Current.TextGrayColor3;
            btnNum.TextSize = 32;

            return btnNum;
        }

        /// <summary>
        /// 点击数字按键
        /// </summary>
        /// <param name="strNum">数字值</param>
        private void btnNumClickEvent(string strNum)
        {
            if (inputPassword.Length >= listPswIcon.Count)
            {
                return;
            }
            //特效改变
            listPswIcon[inputPassword.Length].BackgroundColor = 0xff333333;
            inputPassword += strNum;
            if (inputPassword.Length == 1)
            {
                //将文字从取消变更为删除
                btnDelete.TextID = R.MyInternationalizationString.uDelete;
            }
            //输入结束
            if (ActionPswFinish != null && inputPassword.Length == passwordLength)
            {
                //调用回调函数
                ActionPswFinish(inputPassword);
            }
        }

        #endregion

        #region ■ 重置控件___________________________

        /// <summary>
        /// 重置控件
        /// </summary>
        /// <param name="i_title">标题信息</param>
        public void ResetControlInfo(string i_title)
        {
            //标题
            btnTitle.Text = i_title;
            //记录的密码
            inputPassword = string.Empty;
            //删除按钮
            btnDelete.TextID = R.MyInternationalizationString.uCancel;
            //密码图标
            for (int i = 0; i < listPswIcon.Count; i++)
            {
                listPswIcon[i].BackgroundColor = UserCenterColor.Current.Transparent;
            }
            //错误信息
            btnError.Text = string.Empty;
        }

        #endregion

        #region ■ 错误信息设置_______________________

        /// <summary>
        /// 显示错误的信息
        /// </summary>
        /// <param name="i_msg"></param>
        public void SetErrorMsg(string i_msg)
        {
            btnError.Text = i_msg;
        }

        #endregion

        #region ■ 控件摧毁___________________________

        /// <summary>
        /// 控件摧毁
        /// </summary>
        public override void RemoveFromParent()
        {
            ActionPswFinish = null;
            ActionCancel = null;
            base.RemoveFromParent();
        }

        #endregion
    }
}