using System;
using System.Collections.Generic;
using System.Linq;
using BLL;
using System.Data;
using System.Data.SqlClient;
using System.Text;
using AspNet = System.Web.UI.WebControls;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;

namespace FineUIPro.Web.HJGL.CheckManage
{
    public partial class CheckQuantityStatistics : 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();

                this.drpProjectId.DataTextField = "ProjectCode";
                this.drpProjectId.DataValueField = "ProjectId";
                this.drpProjectId.DataSource = BLL.Base_ProjectService.GetOnProjectListByUserId(this.CurrUser.UserId, "1");
                this.drpProjectId.DataBind();
                Funs.FineUIPleaseSelect(this.drpProjectId);

                this.InitTreeMenu();//加载树
            }
        }
        #endregion

        #region 加载树
        /// <summary>
        /// 加载树
        /// </summary>
        private void InitTreeMenu()
        {
            this.tvControlItem.Nodes.Clear();
            TreeNode rootNode = new TreeNode();
            rootNode.Text = "施工号-装置";
            rootNode.ToolTip = "项目";
            rootNode.NodeID = "0";
            rootNode.Expanded = true;
            this.tvControlItem.Nodes.Add(rootNode);

            List<Model.Base_Project> projects = BLL.Base_ProjectService.GetOnProjectListByUserId(this.CurrUser.UserId, "1");
            if (this.drpProjectId.SelectedValue != null && this.drpProjectId.SelectedValue != "null")
            {
                projects = projects.Where(x => x.ProjectId == this.drpProjectId.SelectedValue).ToList();
            }

            foreach (var item in projects)
            {
                TreeNode rootProjectNode = new TreeNode();//定义根节点
                rootProjectNode.Text = item.ProjectCode;
                rootProjectNode.NodeID = item.ProjectId;
                rootProjectNode.EnableExpandEvent = true;
                rootProjectNode.ToolTip = item.ProjectName;
                rootProjectNode.CommandName = "施工号";
                rootNode.Nodes.Add(rootProjectNode);

                TreeNode tn = new TreeNode();
                tn.NodeID = "temp";
                tn.Text = "正在加载...";

                rootProjectNode.Nodes.Add(tn);
            }
        }

        /// <summary>
        /// 节点展开事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void tvControlItem_NodeExpand(object sender, TreeNodeEventArgs e)
        {
            if (e.Node.Nodes != null)
            {
                e.Node.Nodes.Clear();
            }
            List<Model.Project_Installation> list = (from x in Funs.DB.Project_Installation where x.ProjectId == e.NodeID select x).ToList();

            this.BindNodes(e.Node, list);
        }

        /// <summary>
        ///  绑定树节点
        /// </summary>
        /// <param name="node"></param>
        private void BindNodes(TreeNode node, List<Model.Project_Installation> treeLists)
        {
            if (node.CommandName == "施工号")
            {
                var lists = (from x in treeLists orderby x.InstallationCode descending select x).Distinct();
                foreach (var item in lists)
                {
                    TreeNode newNode = new TreeNode();
                    newNode.Text = item.InstallationCode;
                    newNode.NodeID = item.InstallationId;
                    newNode.ToolTip = item.InstallationName;
                    newNode.CommandName = "装置";
                    newNode.EnableClickEvent = true;
                    node.Nodes.Add(newNode);
                }
            }
        }
        #endregion

        #region 点击TreeView
        /// <summary>
        /// 点击TreeView
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void tvControlItem_NodeCommand(object sender, TreeCommandEventArgs e)
        {
            BindPage();
            BindGrid();
        }
        #endregion

        #region 绑定数据
        /// <summary>
        /// 绑定数据
        /// </summary>
        private void BindGrid()
        {
            if (!string.IsNullOrEmpty(this.tvControlItem.SelectedNodeID) && !string.IsNullOrEmpty(this.tvControlItem.SelectedNode.ParentNode.NodeID))
            {
                string strSql = @"SELECT * FROM HJGL_View_TrustNumSummary WHERE ProjectId = @ProjectId ";//AND InstallationId = @InstallationId";
                List<SqlParameter> listStr = new List<SqlParameter>();

                listStr.Add(new SqlParameter("@ProjectId", this.tvControlItem.SelectedNode.ParentNode.NodeID));
                //listStr.Add(new SqlParameter("@InstallationId", this.tvControlItem.SelectedNodeID));

                SqlParameter[] parameter = listStr.ToArray();
                DataTable tb = SQLHelper.GetDataTableRunText(strSql, parameter);
                DataRow[] rows = tb.Select("InstallationId='" + this.tvControlItem.SelectedNodeID + "'");
                // 2.获取当前分页数据
                //var table = this.GetPagedDataTable(Grid1, tb1);
                Grid1.RecordCount = rows.Count();
                //tb = GetFilteredTable(Grid1.FilteredData, tb);
                //var table = this.GetPagedDataTable(Grid1, tb);

                Grid1.DataSource = rows;
                Grid1.DataBind();           
            }
        }

        private void BindPage()
        {
            if (!string.IsNullOrEmpty(this.tvControlItem.SelectedNodeID) && !string.IsNullOrEmpty(this.tvControlItem.SelectedNode.ParentNode.NodeID))
            {
                var ins = BLL.Project_InstallationService.GetInstallationByInstallationId(this.tvControlItem.SelectedNodeID);
                if (ins != null)
                {
                    this.txtWorkAreaCode.Text = ins.InstallationCode;
                }
                this.txtTestingStandard.Text = "NB/T47013-2015";
            }
            else
            {
                this.txtWorkAreaCode.Text = string.Empty;
            }
        }
        #endregion

        #region 排序
        /// <summary>
        /// 排序
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Grid1_Sort(object sender, GridSortEventArgs e)
        {
            Grid1.SortDirection = e.SortDirection;
            Grid1.SortField = e.SortField;
            BindGrid();
        }
        #endregion

        #region 页索引改变事件
        /// <summary>
        /// 页索引改变事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void Grid1_PageIndexChange(object sender, GridPageEventArgs e)
        {
            Grid1.PageIndex = e.NewPageIndex;
            BindGrid();
        }
        #endregion

        #region 分页选择下拉改变事件
        /// <summary>
        /// 分页选择下拉改变事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void ddlPageSize_SelectedIndexChanged(object sender, EventArgs e)
        {
            Grid1.PageSize = Convert.ToInt32(ddlPageSize.SelectedValue);
            BindGrid();
        }
        #endregion

        #region 项目下拉选择事件
        /// <summary>
        /// 项目下拉选择事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void drpProjectId_SelectedIndexChanged(object sender, EventArgs e)
        {
            this.InitTreeMenu();
        }
        #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("管道无损检测数量统计表" + filename, System.Text.Encoding.UTF8) + ".xls");
            Response.ContentType = "application/excel";
            Response.ContentEncoding = System.Text.Encoding.UTF8;
            Response.Write(GetGridTableHtml(Grid1));
            Response.End();
        }

        private string GetGridTableHtml(Grid grid)
        {
            StringBuilder sb = new StringBuilder();

            FineUIPro.Web.HJGL.WeldingManage.PipelineManageOut2.MultiHeaderTable mht = new FineUIPro.Web.HJGL.WeldingManage.PipelineManageOut2.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();
        }
        #endregion

        #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
    }
}