using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using net.sf.mpxj;
using net.sf.mpxj.MpxjUtilities;
using net.sf.mpxj.reader;
using System.Data;
namespace ConstructionProcessManage_Mpxj
{
    public class MpxjHelper
    {
        /// <summary>
        /// 导入MSProject文件
        /// </summary>
        /// <param name="filename">文件地址</param>
        /// <param name="projectId"></param>
        /// <param name="usercode"></param>
        /// <param name="dt1">任务列表</param>
        /// <param name="dt2">前置任务列表</param>
        /// <returns></returns>
        public void ImportTasks(string filename, out DataTable dt1, out DataTable dt2)
        {
            dt1 = GetTableSchema1();
            dt2 = GetTableSchema2();
            ProjectReader reader = ProjectReaderUtility.getProjectReader(filename);
            ProjectFile file = reader.read(filename);
            foreach (net.sf.mpxj.Task task in file.Tasks.ToIEnumerable())
            {
                if (task.ID.toString()=="0") //自动创建的节点，一般为文件名，不需要
                {
                    continue;
                }
                DataRow dr = dt1.NewRow();
                DateTime dtstartdate = task.Start.ToDateTime(); //开始时间
                DateTime dtenddate = task.Finish.ToDateTime();//结束时间
                TimeSpan tspan = dtenddate.Subtract(dtstartdate);
                dr["TaskId"] = Guid.Parse(task.GUID.toString());
                dr["TaskName"] = task.Name;
                dr["Guid"] = null;
                dr["Unit"] = "";
                dr["TaskDeys"] = tspan.Days + 1;
                dr["UserNumber"] = 0;
                dr["EquipmentShow"] = "";
                dr["MaterialShow"] = "";
                dr["Technology"] = "";
                dr["TaskType"] = 0;
                if (task.ParentTask != null && Convert.ToInt32(task.OutlineLevel.toString())>1) //是否根节点，mpp文件必须只有一个根节点，否则会报错
                {
                    dr["ParentId"] = Guid.Parse(task.ParentTask.GUID.toString());
                }
                dr["PstartDate"] = DateTime.Parse(string.Format("{0:d}", dtstartdate));
                dr["PendDate"] = DateTime.Parse(string.Format("{0:d}", dtenddate));
                dr["VersionCode"] = projectId;
                dr["EditDate"] = DateTime.Now;
                dr["Note"] = "";
                dr["TasksTatus"] = 0;
                dr["RStartDate"] = DBNull.Value; //new Nullable<DateTime>();
                dr["REndDate"] = DBNull.Value;//new Nullable<DateTime>();
                dr["Pstatus"] = 0;
                dr["TaskPro"] = 0;
                dr["TaskLevel"] = Convert.ToInt32(task.OutlineLevel.toString())-1;
                dr["TaskSource"] = 1;
                dr["SortOrder"] = Convert.ToInt32(task.UniqueID.toString());//0; //task.OutlineLevel;
                dr["MileageID"] = 0;//---------
                dr["RelevanceModel"] = false;
                if (task.HasChildTasks())//------------------------------------
                {
                    dr["LeafNode"] = true;
                }
                else
                {
                    dr["LeafNode"] = false;
                }
                dr["DelayDays"] = 0;

                dt1.Rows.Add(dr);


                if (task.Predecessors != null && task.Predecessors.isEmpty() == false)
                {
                    foreach (Relation relation in task.Predecessors.ToIEnumerable())
                    {
                        DataRow dr2 = dt2.NewRow();
                        dr2["RelyId"] = Guid.NewGuid();
                        dr2["VersionCode"] = projectId;
                        dr2["TaskId"] = Guid.Parse(relation.SourceTask.GUID.toString());
                        dr2["RelyTask"] = Guid.Parse(task.GUID.toString());
                        dr2["RelyType"] = 0; //int.Parse(task.Type.ToString());
                        dr2["CreateDate"] = DateTime.Now;
                        dt2.Rows.Add(dr2);
                    }
                }
            }
        }
       
        #region 自定义任务表(列必须与数据库表列一一对应，最终采用SqlBulkCopy批量插入)
        public DataTable GetTableSchema1()
        {
            DataTable dt = new DataTable();
            dt.Columns.AddRange(new DataColumn[] {   
            new DataColumn("TaskId",typeof(Guid)),  
            new DataColumn("TaskName",typeof(string)),  
            new DataColumn("Guid",typeof(string)),
            new DataColumn("ProjectId",typeof(Int32)),

            new DataColumn("Unit",typeof(string)),  
            new DataColumn("TaskDeys",typeof(Int32)),  
            new DataColumn("UserNumber",typeof(Int32)),
            new DataColumn("EquipmentShow",typeof(string)),

            new DataColumn("MaterialShow",typeof(string)),  
            new DataColumn("Technology",typeof(string)),  
            new DataColumn("TaskType",typeof(Int32)),
            new DataColumn("ParentId",typeof(Guid)),

            new DataColumn("PstartDate",typeof(DateTime)),  
            new DataColumn("PendDate",typeof(DateTime)),  
            new DataColumn("VersionCode",typeof(string)),
            new DataColumn("EditUser",typeof(string)),

            new DataColumn("EditDate",typeof(DateTime)),  
            new DataColumn("Note",typeof(string)),  
            new DataColumn("TasksTatus",typeof(Int32)),
            new DataColumn("RStartDate",typeof(DateTime)),

            new DataColumn("REndDate",typeof(DateTime)),  
            new DataColumn("PStatus",typeof(Int32)),  //
            new DataColumn("TaskPro",typeof(decimal)),
            new DataColumn("TaskLevel",typeof(Int32)),

            new DataColumn("TaskSource",typeof(Int32)),  
            new DataColumn("SortOrder",typeof(Int32)),  
            new DataColumn("MileageID",typeof(Int32)),//
            new DataColumn("RelevanceModel",typeof(bool)),

            new DataColumn("LeafNode",typeof(bool)),  
            new DataColumn("DelayDays",typeof(Int32))
            
            });
            return dt;
        }
        #endregion
        #region 自定义前置任务表(列必须与数据库表列一一对应，最终采用SqlBulkCopy批量插入)
        public DataTable GetTableSchema2()
        {
            DataTable dt = new DataTable();
            dt.Columns.AddRange(new DataColumn[] {   
            new DataColumn("RelyId",typeof(Guid)),  
            new DataColumn("VersionCode",typeof(string)),  
            new DataColumn("TaskId",typeof(Guid)),
            new DataColumn("RelyTask",typeof(Guid)),

            new DataColumn("RelyType",typeof(Int32)),  
            new DataColumn("CreateDate",typeof(DateTime)),  
            new DataColumn("CreateUser",typeof(Int32))
            
            });
            return dt;
        }
        #endregion
    }
}