using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using NXWMS.Client.Model.CoreModels;
using ComponentFactory.Krypton.Toolkit;
using System.Threading;
using System.Threading.Tasks;

namespace NXWMS.Client.FrmCustom
{
    public partial class PageToolbar : UserControl
    {
        private int _pageSzie = 30;
        private BindingList<int> pages = new BindingList<int>();
        /// <summary>
        /// 页面数量
        /// </summary>
        [Description("当前每次分页个数")]
        public int PageSize
        {
            get { return this._pageSzie; }
            set
            {
                if (this._pageSzie != value)
                {

                    this.SetPageSize(value);
                }

            }
        }
        private int _pageIndex = 0;
        /// <summary>
        /// 当前页面
        /// </summary>
        [Description("当前页码")]
        public int PageIndex
        {
            get
            {
                if (this._PageTotalIndex == 0)
                {
                    return 1;
                }
                return this._pageIndex;

            }
            //set
            //{
            //    this.SetPageIndex(value);
            //}
        }

        public int _PageTotalIndex;


        [Description("最新总页码")]
        public int PageTotalIndex
        {
            get { return this._PageTotalIndex; }
        }


        private int _TotalCount = 0;

        [Description("数据总个数")]
        public int DataCount
        {
            get
            {
                return this._TotalCount;

            }
            set
            {
                if (this._TotalCount != value)
                {
                    this.SetTotalCount(value);
                }
            }
        }
        private List<string> _PageSizeSelectList = new List<string>() { "10", "20", "30", "40", "50", "100" };
        [Description("页面个数选择列表")]
        public List<string> PageSizeSelectList
        {
            get
            {
                return this._PageSizeSelectList;
            }
            set
            {
                this._PageSizeSelectList = value;
            }
        }


        private int _PageIndexSelectDefault = 1;

        [Description("默认选择页码")]
        public int PageIndexSelectDefault
        {
            get
            {
                return this._PageIndexSelectDefault;
            }
            set
            {
                this._PageIndexSelectDefault = value;
            }
        }


        [Description("页面分页匹配(2个占位符)")]
        public string PageDefault { get; set; } = "{0}/{1}";

        [Description("页面默认文本(1个占位符)")]
        public string PageInfoDefault { get; set; } = "共 {0} 条记录,每页";


        [Description("加载消息文本(2个占位符,1:当前第几页数据,2:已多少记录分页)")]
        public string LoadMessage { get; set; }  //@"正在加载第 {0} 页数据,以 {1} 条记录进行分页。";
        public delegate void PageChange(int PageIndex, int PageSzie);

        public void DoOnPageChange(int PageIndex, int PageSzie)
        {
            if (PageIndex == 0) return;
            //if (this.inLoad) return;
            if (OnPageChange != null)
            {
                OnPageChange(PageIndex, PageSzie);
            }
        }
        public event PageChange OnPageChange;


        //TODO 这里需要修改到使用方法
        public delegate OperateResultInfo ExecActionOperation(int pageIndex, int pageSize);
        public delegate string ExecActionMessgae(int pageIndex, int pageSize);
        public ExecActionOperation _execActionOperation { get; set; }
        public ExecActionMessgae _execActionMessgae { get; set; }
        public OperateResultInfo _LastOperation { get; set; }


        private void ControlEnable()
        {
            if (this._PageTotalIndex == 0)
            {
                BtnBack.Enabled = false;
                BtnNext.Enabled = false;
                BtnFirst.Enabled = false;
                BtnLast.Enabled = false;
                return;
            }
            if (this._pageIndex == 1)
            {
                BtnBack.Enabled = false;
                BtnFirst.Enabled = false;
            }
            else
            {
                BtnBack.Enabled = true;
                BtnFirst.Enabled = true;
            }
            if (this._pageIndex == this._PageTotalIndex)
            {

                BtnNext.Enabled = false;
                BtnLast.Enabled = false;
            }
            else
            {
                BtnNext.Enabled = true;
                BtnLast.Enabled = true;
            }

        }

        #region 分页控件
        /// <summary>
        /// 每页标签
        /// </summary>
        KryptonLabel lbEveryPage;
        /// <summary>
        /// 每页记录数列表控件
        /// </summary>
        KryptonComboBox cmbEveryPageRecordNum;
        /// <summary>
        /// 记录标签
        /// </summary>
        KryptonLabel lbRecordsNum;
        /// <summary>
        /// 分割线
        /// </summary>
        KryptonSeparator separator;
        /// <summary>
        /// 首页按钮
        /// </summary>
        KryptonButton BtnFirst;
        /// <summary>
        /// 上一页按钮
        /// </summary>
        KryptonButton BtnBack;
        /// <summary>
        /// 当前页标签
        /// </summary>
        KryptonLabel lbCurrentPage;
        /// <summary>
        /// 总页数标签
        /// </summary>
        KryptonLabel lbTotalPage;
        /// <summary>
        /// 数据记录总数标签
        /// </summary>
        KryptonLabel lbTotalDataRecords;
        /// <summary>
        /// 下一页按钮
        /// </summary>
        KryptonButton BtnNext;
        /// <summary>
        /// 尾页按钮
        /// </summary>
        KryptonButton BtnLast;
        /// <summary>
        /// 分割线
        /// </summary>
        KryptonSeparator separator1;
        /// <summary>
        /// 页码标签控件
        /// </summary>
        KryptonLabel lbPageNum;
        /// <summary>
        /// 页码列表控件
        /// </summary>
        KryptonComboBox cmbPageNumEnum;
        /// <summary>
        /// 分割线
        /// </summary>
        KryptonSeparator separator2;
        /// <summary>
        /// 跳转页码按钮
        /// </summary>
        KryptonButton btGotoPage;
        #endregion


        private void InitPageControl()
        {
            #region 分页控件
            lbEveryPage = new KryptonLabel();
            lbEveryPage.Text = "每页";
            lbEveryPage.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(lbEveryPage);
            this.ts_PageControl.Items.Insert(0, new ToolStripControlHost(lbEveryPage));

            cmbEveryPageRecordNum = new KryptonComboBox();
            cmbEveryPageRecordNum.Height = 23;
            cmbEveryPageRecordNum.Width = 40;
            cmbEveryPageRecordNum.MinimumSize = new Size(40, 23);
            cmbEveryPageRecordNum.PaletteMode = PaletteMode.Office2007Silver;
            // cmbEveryPageRecordNum.Items.AddRange(new object[] { 1, 5, 10, 15, 25, 50, 100 });
            cmbEveryPageRecordNum.DropDownStyle = ComboBoxStyle.DropDownList;
            //cmbEveryPageRecordNum.SelectedIndex = 0;
            Controls.Add(cmbEveryPageRecordNum);
            this.ts_PageControl.Items.Insert(1, new ToolStripControlHost(cmbEveryPageRecordNum));

            lbRecordsNum = new KryptonLabel();
            lbRecordsNum.Text = "条记录";
            lbRecordsNum.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(lbRecordsNum);
            this.ts_PageControl.Items.Insert(2, new ToolStripControlHost(lbRecordsNum));

            separator = new KryptonSeparator();
            separator.Height = 25;
            separator.Width = 5;
            separator.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(separator);
            this.ts_PageControl.Items.Insert(3, new ToolStripControlHost(separator));

            BtnFirst = new KryptonButton();
            BtnFirst.Text = "首页";
            BtnFirst.Height = 25;
            BtnFirst.Width = 25;
            BtnFirst.AutoSize = true;
            BtnFirst.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(BtnFirst);
            this.ts_PageControl.Items.Insert(4, new ToolStripControlHost(BtnFirst));

            BtnBack = new KryptonButton();
            BtnBack.Text = "上一页";
            BtnBack.Height = 25;
            BtnBack.Width = 25;
            BtnBack.AutoSize = true;
            BtnBack.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(BtnBack);
            this.ts_PageControl.Items.Insert(5, new ToolStripControlHost(BtnBack));

            lbCurrentPage = new KryptonLabel();
            lbCurrentPage.Tag = 1;
            lbCurrentPage.Text = "第0页";
            lbCurrentPage.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(lbCurrentPage);
            this.ts_PageControl.Items.Insert(6, new ToolStripControlHost(lbCurrentPage));

            lbTotalPage = new KryptonLabel();
            lbTotalPage.Tag = 10;
            lbTotalPage.Text = "共0页";
            lbTotalPage.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(lbTotalPage);
            this.ts_PageControl.Items.Insert(7, new ToolStripControlHost(lbTotalPage));

            lbTotalDataRecords = new KryptonLabel();
            lbTotalDataRecords.Tag = 10;
            lbTotalDataRecords.Text = "总计：0条数据记录";
            lbTotalDataRecords.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(lbTotalDataRecords);
            this.ts_PageControl.Items.Insert(8, new ToolStripControlHost(lbTotalDataRecords));

            BtnNext = new KryptonButton();
            BtnNext.Text = "下一页";
            BtnNext.Height = 25;
            BtnNext.Width = 25;
            BtnNext.AutoSize = true;
            BtnNext.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(BtnNext);
            this.ts_PageControl.Items.Insert(9, new ToolStripControlHost(BtnNext));

            BtnLast = new KryptonButton();
            BtnLast.Text = "尾页";
            BtnLast.Height = 25;
            BtnLast.Width = 25;
            BtnLast.AutoSize = true;
            BtnLast.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(BtnLast);
            this.ts_PageControl.Items.Insert(10, new ToolStripControlHost(BtnLast));

            separator1 = new KryptonSeparator();
            separator1.Height = 25;
            separator1.Width = 5;
            separator1.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(separator1);
            this.ts_PageControl.Items.Insert(11, new ToolStripControlHost(separator1));

            lbPageNum = new KryptonLabel();
            lbPageNum.Text = "页码：";
            Controls.Add(lbPageNum);
            this.ts_PageControl.Items.Insert(12, new ToolStripControlHost(lbPageNum));

            cmbPageNumEnum = new KryptonComboBox();
            cmbPageNumEnum.Height = 23;
            cmbPageNumEnum.Width = 70;
            cmbPageNumEnum.MinimumSize = new Size(70, 23);
            cmbPageNumEnum.PaletteMode = PaletteMode.Office2007Silver;
            cmbPageNumEnum.DataSource = this.pages;
            Controls.Add(cmbPageNumEnum);
            this.ts_PageControl.Items.Insert(13, new ToolStripControlHost(cmbPageNumEnum));

            separator2 = new KryptonSeparator();
            separator2.Height = 25;
            separator2.Width = 5;
            separator2.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(separator2);
            this.ts_PageControl.Items.Insert(14, new ToolStripControlHost(separator2));

            btGotoPage = new KryptonButton();
            btGotoPage.Text = "跳转";
            btGotoPage.Height = 25;
            btGotoPage.Width = 25;
            btGotoPage.AutoSize = true;
            btGotoPage.PaletteMode = PaletteMode.Office2007Silver;
            Controls.Add(btGotoPage);
            this.ts_PageControl.Items.Insert(15, new ToolStripControlHost(btGotoPage));
            #endregion

            #region 注册按钮事件
            cmbEveryPageRecordNum.SelectionChangeCommitted += CmbEveryPageRecordNum_SelectionChangeCommitted; ;
            BtnFirst.Click += this.kryptonBtnFirst_Click;
            BtnBack.Click += this.kryptonBtnBack_Click;
            BtnNext.Click += this.kryptonBtnNext_Click;
            BtnLast.Click += this.kryptonBtnLast_Click;
            btGotoPage.Click += BtGotoPage_Click;
            #endregion
        }

        private void BtGotoPage_Click(object sender, EventArgs e)
        {
            var _pageindex = Convert.ToInt32(this.cmbPageNumEnum.SelectedValue);
            this.SetPageIndex(_pageindex);
        }

        private void CmbEveryPageRecordNum_SelectionChangeCommitted(object sender, EventArgs e)
        {
            PageSize = Convert.ToInt32(cmbEveryPageRecordNum.Text);
        }

        public PageToolbar()
        {
            InitializeComponent();
            InitPageControl();
            this.ControlEnable();
            cmbEveryPageRecordNum.DataSource = this.PageSizeSelectList;
            cmbPageNumEnum.Text = PageIndexSelectDefault.ToString();
            this.pages.ListChanged += Pages_ListChanged;
            this.SetPageIndex(1);
        }

        private void Pages_ListChanged(object sender, ListChangedEventArgs e)
        {

        }

        private void SetPageSize(int pageSize, bool CountChange = false)
        {
            if (pageSize <= 0)
            {
                return;
            }
            var _totlaPages = (int)Math.Ceiling((double)this.DataCount / pageSize);
            this._PageTotalIndex = _totlaPages;
            this.lbTotalPage.Text = $"共{_totlaPages}页";
            this.cmbPageNumEnum.SelectedIndexChanged -= this.CmbEveryPageRecordNum_SelectionChangeCommitted;
            this.cmbPageNumEnum.DataSource = null;

            lock (this.pages)
            {
                this.pages.Clear();
                for (int n = 1; n <= _PageTotalIndex; n++)
                {
                    this.pages.Add(n);
                }
            }
            this.cmbPageNumEnum.DataSource = pages;
            this.cmbPageNumEnum.SelectedIndexChanged += this.CmbEveryPageRecordNum_SelectionChangeCommitted;
            this._pageSzie = pageSize;
            cmbEveryPageRecordNum.Text = PageSize.ToString();
            if (_totlaPages == 0)
            {
                this._pageIndex = 0;

            }
            else
            {
                if (this._pageIndex == 0)
                {
                    this._pageIndex = 1;
                }

            }

            this.SetPageIndex(Math.Min(_totlaPages, this._pageIndex), CountChange);
            //if (_pageIndex == 1 || _totlaPages != 0)
            //{
            //    this.lbCurrentPage.Text = $"第{ this._pageIndex}页";
            //}
            //else if (_pageIndex == 1 || _totlaPages == 0)
            //{
            //    this.lbCurrentPage.Text = $"第0页";
            //}
            this.ControlEnable();
        }

        private void SetTotalCount(int totalCount)
        {
            this._TotalCount = totalCount;
            this.lbTotalDataRecords.Text = $"总计：{this._TotalCount}条数据记录";
            this.SetPageSize(this.PageSize, true);
        }

        private bool isIndex = false;
        public void SetPageIndex(int pageIndex, bool CountChange = false)
        {

            if (pageIndex < 0 || pageIndex > this._PageTotalIndex)
            {
                return;
            }

            if (isIndex) return;
            isIndex = true;
            this._pageIndex = pageIndex;
            this.lbCurrentPage.Text = $"第{ this._pageIndex}页";
            this._PageTotalIndex = (int)Math.Ceiling((double)DataCount / PageSize);
            cmbPageNumEnum.Text = PageIndex.ToString();
            if (!CountChange)
                this.DoOnPageChange(this.PageIndex, this._pageSzie);
            isIndex = false;
            this.ControlEnable();
        }




        public void kryptonBtnFirst_Click(object sender, EventArgs e)
        {
            this.SetPageIndex(1);

        }

        public void kryptonBtnBack_Click(object sender, EventArgs e)
        {
            this.SetPageIndex(this._pageIndex - 1);
        }

        private static object obj = new object();

        public void kryptonBtnNext_Click(object sender, EventArgs e)
        {
            this.SetPageIndex(this._pageIndex + 1);
        }

        public void kryptonBtnLast_Click(object sender, EventArgs e)
        {
            this.SetPageIndex(this._PageTotalIndex);
            // PageIndex = PageTotalIndex;
        }
    }
}