using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Data;
using BLL;
using System.Text;

namespace FineUIPro.Web.PublicInfo.ProcessControl
{
    public partial class WeldingQuelity : PageBase
    {
        #region 加载
        /// <summary>
        /// 加载页面
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                this.ddlPageSize.SelectedValue = this.Grid1.PageSize.ToString();
            }
        }

        /// <summary>
        /// 绑定数据
        /// </summary>
        private void BindGrid()
        {
            List<SqlParameter> listStr = new List<SqlParameter>();
            if (!string.IsNullOrEmpty(this.txtStartDate.Text.Trim()))
            {
                listStr.Add(new SqlParameter("@startDate", this.txtStartDate.Text.Trim()));
            }
            else
            {
                listStr.Add(new SqlParameter("@startDate", null));
            }
            if (!string.IsNullOrEmpty(this.txtEndDate.Text.Trim()))
            {
                listStr.Add(new SqlParameter("@endDate", this.txtEndDate.Text.Trim()));
            }
            else
            {
                listStr.Add(new SqlParameter("@endDate", null));
            }

            SqlParameter[] parameter = listStr.ToArray();
            DataTable tb = SQLHelper.GetDataTableRunProc("WeldingQualityWeekMonthReport", parameter);
            this.Grid1.RecordCount = tb.Rows.Count;
            var table = this.GetPagedDataTable(Grid1, tb);
            Grid1.DataSource = table;
            Grid1.DataBind();
        }

        /// <summary>
        /// 改变索引事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Grid1_PageIndexChange(object sender, GridPageEventArgs e)
        {
            BindGrid();
        }

        /// <summary>
        /// 分页下拉选择事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void ddlPageSize_SelectedIndexChanged(object sender, EventArgs e)
        {
            Grid1.PageSize = Convert.ToInt32(ddlPageSize.SelectedValue);
            BindGrid();
        }

        /// <summary>
        /// 排序
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Grid1_Sort(object sender, FineUIPro.GridSortEventArgs e)
        {
            this.BindGrid();
        }
        #endregion

        #region 统计按钮事件
        /// <summary>
        /// 统计
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void BtnAnalyse_Click(object sender, EventArgs e)
        {
            BindGrid();
        }
        #endregion

        #region 导出按钮
        /// 导出按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void btnOut_Click(object sender, EventArgs e)
        {
            Response.ClearContent();
            string filename = Funs.GetNewFileName();
            Response.AddHeader("content-disposition", "attachment; filename=" + System.Web.HttpUtility.UrlEncode(Resources.Lan.WeldingQuelity + filename, System.Text.Encoding.UTF8) + ".xls");
            Response.ContentType = "application/excel";
            Response.ContentEncoding = System.Text.Encoding.UTF8;
            Response.Write(GetGridTableHtml(Grid1));
            Response.End();
        }

        /// <summary>
        /// 导出方法
        /// </summary>
        /// <param name="grid"></param>
        /// <returns></returns>
        private string GetGridTableHtml(Grid grid)
        {
            StringBuilder sb = new StringBuilder();
            grid.PageSize = 10000;
            BindGrid();
            MultiHeaderTable mht = new MultiHeaderTable();
            mht.ResolveMultiHeaderTable(Grid1.Columns);
            sb.Append("<meta http-equiv=\"Content-Type\" content=\"application/vnd.ms-excel;charset=utf-8\"/>");
            sb.Append("<table cellspacing=\"0\" rules=\"all\" border=\"1\" style=\"border-collapse:collapse;\">");

            foreach (List<object[]> rows in mht.MultiTable)
            {
                sb.Append("<tr>");
                foreach (object[] cell in rows)
                {
                    int rowspan = Convert.ToInt32(cell[0]);
                    int colspan = Convert.ToInt32(cell[1]);
                    GridColumn column = cell[2] as GridColumn;

                    sb.AppendFormat("<th{0}{1}{2}>{3}</th>",
                        rowspan != 1 ? " rowspan=\"" + rowspan + "\"" : "",
                        colspan != 1 ? " colspan=\"" + colspan + "\"" : "",
                        colspan != 1 ? " style=\"text-align:center;\"" : "",
                        column.HeaderText);
                }
                sb.Append("</tr>");
            }

            foreach (GridRow row in grid.Rows)
            {
                sb.Append("<tr>");

                foreach (GridColumn column in mht.Columns)
                {
                    string html = row.Values[column.ColumnIndex].ToString();

                    //if (column.ColumnID == "tfNumber")
                    //{
                    //    html = (row.FindControl("spanNumber") as System.Web.UI.HtmlControls.HtmlGenericControl).InnerText;
                    //}
                    //else if (column.ColumnID == "tfGender")
                    //{
                    //    html = (row.FindControl("labGender") as AspNet.Label).Text;
                    //}
                    sb.AppendFormat("<td>{0}</td>", html);
                }
                sb.Append("</tr>");
            }
            sb.Append("</table>");

            return sb.ToString();
        }

        #region 多表头处理
        /// <summary>
        /// 处理多表头的类
        /// </summary>
        public class MultiHeaderTable
        {
            // 包含 rowspan，colspan 的多表头，方便生成 HTML 的 table 标签
            public List<List<object[]>> MultiTable = new List<List<object[]>>();
            // 最终渲染的列数组
            public List<GridColumn> Columns = new List<GridColumn>();

            public void ResolveMultiHeaderTable(GridColumnCollection columns)
            {
                List<object[]> row = new List<object[]>();
                foreach (GridColumn column in columns)
                {
                    object[] cell = new object[4];
                    cell[0] = 1;    // rowspan
                    cell[1] = 1;    // colspan
                    cell[2] = column;
                    cell[3] = null;

                    row.Add(cell);
                }

                ResolveMultiTable(row, 0);
                ResolveColumns(row);
            }

            private void ResolveColumns(List<object[]> row)
            {
                foreach (object[] cell in row)
                {
                    GroupField groupField = cell[2] as GroupField;
                    if (groupField != null && groupField.Columns.Count > 0)
                    {
                        List<object[]> subrow = new List<object[]>();
                        foreach (GridColumn column in groupField.Columns)
                        {
                            subrow.Add(new object[]
                            {
                                1,
                                1,
                                column,
                                groupField
                            });
                        }

                        ResolveColumns(subrow);
                    }
                    else
                    {
                        Columns.Add(cell[2] as GridColumn);
                    }
                }
            }

            private void ResolveMultiTable(List<object[]> row, int level)
            {
                List<object[]> nextrow = new List<object[]>();

                foreach (object[] cell in row)
                {
                    GroupField groupField = cell[2] as GroupField;
                    if (groupField != null && groupField.Columns.Count > 0)
                    {
                        // 如果当前列包含子列，则更改当前列的 colspan，以及增加父列（向上递归）的colspan
                        cell[1] = Convert.ToInt32(groupField.Columns.Count);
                        PlusColspan(level - 1, cell[3] as GridColumn, groupField.Columns.Count - 1);

                        foreach (GridColumn column in groupField.Columns)
                        {
                            nextrow.Add(new object[]
                            {
                                1,
                                1,
                                column,
                                groupField
                            });
                        }
                    }
                }
                MultiTable.Add(row);

                // 如果当前下一行，则增加上一行（向上递归）中没有子列的列的 rowspan
                if (nextrow.Count > 0)
                {
                    PlusRowspan(level);

                    ResolveMultiTable(nextrow, level + 1);
                }
            }

            private void PlusRowspan(int level)
            {
                if (level < 0)
                {
                    return;
                }
                foreach (object[] cells in MultiTable[level])
                {
                    GroupField groupField = cells[2] as GroupField;
                    if (groupField != null && groupField.Columns.Count > 0)
                    {
                        // ...
                    }
                    else
                    {
                        cells[0] = Convert.ToInt32(cells[0]) + 1;
                    }
                }
                PlusRowspan(level - 1);
            }

            private void PlusColspan(int level, GridColumn parent, int plusCount)
            {
                if (level < 0)
                {
                    return;
                }

                foreach (object[] cells in MultiTable[level])
                {
                    GridColumn column = cells[2] as GridColumn;
                    if (column == parent)
                    {
                        cells[1] = Convert.ToInt32(cells[1]) + plusCount;

                        PlusColspan(level - 1, cells[3] as GridColumn, plusCount);
                    }
                }
            }
        }
        #endregion
        #endregion

        #region 下拉选择事件
        /// <summary>
        /// 选择开始时间结束时间推迟一周
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void txtStartDate_TextChanged(object sender, EventArgs e)
        {
            if (this.txtStartDate.SelectedDate.HasValue)
            {
                this.txtEndDate.SelectedDate = this.txtStartDate.SelectedDate.Value.AddDays(6);
            }
        }
        #endregion
    }
}