using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Sarand.Core.App;
using Sarand.Core.Base;
using Sarand.Core.Bus;
using Sarand.Core.Dbas.Base;
using Sarand.Win.Dbas.Base;
using Sarand.PatientMgr.Core.App;
using Sarand.PatientMgr.Core.Bus;
using Sarand.PatientMgr.Core.Mgr;
using Sarand.PatientMgr.Win.Dbas.Bus;
using Sarand.PatientMgr.Win.Dbas.Internal;
//using Sarand.PatientMgr.Win.Dbas.UpdateLog;
using Sarand.Win.Dbas.Data;

namespace Sarand.PatientMgr.Win.Dbas.Mgr
{
	//=======================================================================
	internal partial class SpmDepartmentMgr_Dbas : SpmDepartmentMgr
	{
		//*******************************************************************
		//                  A d m i s s i o n   A c t i o n
		//*******************************************************************
		//-------------------------------------------------------------------
		// Data members.

		//-------------------------------------------------------------------
		// Utilities.

		//-------------------------------------------------------------------
		// TemplateData exists.
		public override bool TemplateDataExistsById(SysId templateDataId)
		{
			ClearErrorState();
			if (!SysId.IsValid(templateDataId)) return false;
			SpmTemplateData.Params prmTemplateData = new SpmTemplateData.Params();
			prmTemplateData.IncludedIds.Add(templateDataId);
			prmTemplateData.StatusCat = SpmTemplateData.StatusCat.Any;
			return GetTemplateDataCount(prmTemplateData) == 1;
		}

		//-------------------------------------------------------------------
		// Get TemplateData.
		public override SpmTemplateData GetTemplateData(SpmTemplateData.Params prm)
		{
			return GetTemplateData(GetTemplateDataQueryFilter(prm).Concat(" AND ", "(", ")"));
		}
		private SpmTemplateData GetTemplateData(String filter)
		{
			ClearErrorState();
			long count = GetTemplateDataCount(filter);
			if (count == 0) return null;
			if (count != 1)
			{
				SetErrorState("Multiple TemplateDataes found");
				return null;
			}
			SpmTemplateData templateData = null;
			// Query data.
			using (var dbConnection = db.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					SwmTemplateData_Db dbTemplateData = new SwmTemplateData_Db(DbInfo);
					dbTemplateData.PopulateFrom(dbCommand, aliasTemplateData, filter);
					templateData = CreateTemplateData(dbTemplateData);
				}
				catch (Exception exc)
				{
					SetErrorState("Database query exception");
					Logger.Warn(GetType().Name + ".GetTemplateData\n\tQuery: " + dbCommand.CommandText + "\n\tException: " + exc.Message);
				}
			}
			return templateData;
		}
		public override SpmTemplateData GetTemplateDataById(SysId templateDataId)
		{
			ClearErrorState();
			if (!SysId.IsValid(templateDataId)) return null;
			SpmTemplateData.Params prmTemplateData = new SpmTemplateData.Params();
			prmTemplateData.IncludedIds.Add(templateDataId);
			prmTemplateData.StatusCat = SpmTemplateData.StatusCat.Any;
			return GetTemplateData(prmTemplateData);
		}

		//-------------------------------------------------------------------
		// Create TemplateData.
		public override SpmTemplateData CreateTemplateData()
		{
			return new SpmTemplateData_Dbas(UserContext, null, 0);
		}
		private SpmTemplateData_Dbas CreateTemplateData(SwmTemplateData_Db dbTemplateData)
		{
			ClearErrorState();
			SpmTemplateData_Dbas templateData = new SpmTemplateData_Dbas(UserContext, new SysId(0), (ushort)dbTemplateData._Flags);
			PopulateFrom(dbTemplateData, templateData);
			return templateData;
		}

		//-------------------------------------------------------------------
		// Validate TemplateData.
		public override bool IsValidTemplateDataData(SpmTemplateData.Data data, SpmTemplateData.ErrField errField)
		{
			ClearErrorState();
			if (!base.IsValidTemplateDataData(data, errField)) return false;
			return true;
		}

		//-------------------------------------------------------------------
		// Insert TemplateData.
		public override bool InsertTemplateData(SpmTemplateData templateData, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!IsValidTemplateData(templateData)) return false;
			if (SysId.IsValid(templateData.Id)) return SetErrorState(ErrorMessage.ValiditemId);
			using (var dbConnection = db.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					SwmTemplateData_Db dbTemplateData = new SwmTemplateData_Db(DbInfo);
					PopulateTo(dbTemplateData, templateData, dbUpdateInfo);
					if (SwmTemplateData_Db.FieldsNonId.Contains("Id"))
					{
						// Generate next Id.
						//dbTemplateData._Id = SysId.ToInt(db.GetNextId("TemplateData", dbUpdateInfo));
					}
					dbTemplateData.ExecuteInsertCommand(dbCommand);
					//templateData.Id = new SysId(dbTemplateData._Id);
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Update TemplateData.
		public override bool UpdateTemplateData(SpmTemplateData templateData, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!IsValidTemplateData(templateData)) return false;
			if (!SysId.IsValid(templateData.Id)) return SetErrorState(ErrorMessage.InvalidItemId);
			using (var dbConnection = db.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					// Retrieve TemplateData.
					dbConnection.Open();
					SwmTemplateData_Db dbTemplateData = new SwmTemplateData_Db(DbInfo);
					dbTemplateData.PopulateFrom(dbCommand, aliasTemplateData, "Id=" + SysId.ToString(templateData.Id));
					//SpmUpdateLogItemMonitor_TemplateData updateLogMonitor = new SpmUpdateLogItemMonitor_TemplateData(UserContext, CreateTemplateData(dbTemplateData));

					// Update properties.
					PopulateTo(dbTemplateData, templateData, dbUpdateInfo);
					dbTemplateData.ExecuteUpdateCommand(dbCommand);

					/* Record updates.
					updateLogMonitor.RecordUpdatedValues(templateData);
					updateLogMonitor.LogUpdates();*/
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Delete TemplateData.
		public override bool TemplateDataCanBeDeleted(SpmTemplateData templateData)
		{
			ClearErrorState();
			if (!base.TemplateDataCanBeDeleted(templateData)) return false;
			return true;
		}
		public override bool DeleteTemplateData(SpmTemplateData templateData, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!TemplateDataCanBeDeleted(templateData)) return false;
			using (var dbConnection = db.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					// Retrieve TemplateData.
					dbConnection.Open();
					SwmTemplateData_Db dbTemplateData = new SwmTemplateData_Db(DbInfo);
					dbTemplateData.PopulateFrom(dbCommand, aliasTemplateData, "Id=" + templateData.Id.ToString());
					// Delete TemplateData.
					dbCommand.CommandType = System.Data.CommandType.Text;
					dbCommand.CommandText = "DELETE FROM " + SpmDbDfn.GetTableName(SpmDbDfn.TableIdx.SwmTemplateData) + " WHERE Id=" + SysId.ToString(templateData.Id) + ";";
					dbCommand.ExecuteNonQuery();
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Copy data properties to and from database.
		private void PopulateTo(SwmTemplateData_Db dbTemplateData, SpmTemplateData templateData, DbUpdateInfo dbUpdateInfo)
		{
			//dbTemplateData._Id = templateData.Id.ToInt();

			dbTemplateData._Notes = templateData.Notes;
			dbTemplateData._Status = SacsSystem.GetStatusCode(templateData.Status);
			dbTemplateData._Flags = (short)templateData.Flags;
			if (!SysId.IsValid(templateData.Id))
			{
				dbTemplateData._CreateOn = DateTime.UtcNow;
				dbTemplateData._CreateBy = dbUpdateInfo.UserId.ToInt();
				dbTemplateData._CreateHost = dbUpdateInfo.Host;
			}
			dbTemplateData._UpdateOn = DateTime.UtcNow;
			dbTemplateData._UpdateBy = dbUpdateInfo.UserId.ToInt();
			dbTemplateData._UpdateHost = dbUpdateInfo.Host;
		}
		private void PopulateFrom(SwmTemplateData_Db dbTemplateData, SpmTemplateData templateData)
		{
			//templateData.Id = new SysId(dbTemplateData._Id);
			templateData.Notes = dbTemplateData._Notes;
			templateData.Status = SacsSystem.GetStatusForCode(dbTemplateData._Status);
			templateData.SetCreateStamp(dbTemplateData._CreateOn, new SysId(dbTemplateData._CreateBy), dbTemplateData._CreateHost);
			templateData.SetUpdateStamp(dbTemplateData._UpdateOn, new SysId(dbTemplateData._UpdateBy), dbTemplateData._UpdateHost);
			templateData.AcceptChanges();
		}

		//-------------------------------------------------------------------
		// TemplateData column definitions.
		private static readonly String aliasTemplateData = "aAdmAct";
		private void SetTemplateDataColDfn
			(ColumnDfn col, String caption, int width, SpmDbDfn.ColumnIdx dbCol,
			ColumnAlignment align = ColumnAlignment.Default, DataValue.DataType dataType = DataValue.DataType.String,
			String alias = "", String prefix = "")
		{
			if (String.IsNullOrEmpty(alias) && SpmDbDfn.GetTableForColumn(dbCol) == SpmDbDfn.TableIdx.SwmTemplateData)
				alias = aliasTemplateData;
			col.Set(caption, width, (int)dbCol, prefix + SpmDbDfn.GetColumnName(dbCol, false), SpmDbDfn.GetColumnNameQual(dbCol, alias), dataType, align);
			if (dataType == DataValue.DataType.String && dbCol != SpmDbDfn.ColumnIdx.Unknown)
				col.MaxLength = (int)SpmDbDfn.GetColTextLen(dbCol);
		}
		//-------------------------------------------------------------------
		// Getting prmTemplateData column definition.
		public override ColumnDfn GetTemplateDataColumnDfn(SpmTemplateData.Column columnId, string caption = "", int width = 0)
		{
			ColumnDfn columnDfn = new ColumnDfn((int)columnId, caption, width);
			switch (columnId)
			{
				/*case SpmTemplateData.Column.Pos:
					SetTemplateDataColDfn(columnDfn, "Pos", 42, SpmDbDfn.ColumnIdx.Unknown, ColumnAlignment.Right);
					columnDfn.SortMode = ColumnDfn.ColumnSortMode.Off;
					columnDfn.ReadOnly = true;
					columnDfn.Resizable = false;
					break;
				case SpmTemplateData.Column.Id:
					SetTemplateDataColDfn(columnDfn, "Id", 40, SpmDbDfn.ColumnIdx.SwmTemplateData_Id, ColumnAlignment.Right, DataValue.DataType.Long);
					columnDfn.ReadOnly = true;
					break;*/

				// TemplateData Properties.

				// Derived properties.				

				// Common properties.
				case SpmTemplateData.Column.Notes:
					SetTemplateDataColDfn(columnDfn, "Notes", 200, SpmDbDfn.ColumnIdx.SwmTemplateData_Notes);
					break;
				case SpmTemplateData.Column.Status:
					SetTemplateDataColDfn(columnDfn, "Status", 50, SpmDbDfn.ColumnIdx.SwmTemplateData_Status, ColumnAlignment.Center);
					break;
				case SpmTemplateData.Column.Status_Desc:
					SetTemplateDataColDfn(columnDfn, "Status", 50, SpmDbDfn.ColumnIdx.SwmTemplateData_Status, ColumnAlignment.Center);
					break;
				case SpmTemplateData.Column.Status_Ind:
					SetTemplateDataColDfn(columnDfn, "Status", 50, SpmDbDfn.ColumnIdx.SwmTemplateData_Status, ColumnAlignment.Center, DataValue.DataType.TriState);
					columnDfn.TriStateFormat = ColumnTriStateFormat.Lights;
					break;
				case SpmTemplateData.Column.CreateOn_Date:
					SetTemplateDataColDfn(columnDfn, "Created", 65, SpmDbDfn.ColumnIdx.SwmTemplateData_CreateOn, ColumnAlignment.Center, DataValue.DataType.Date);
					columnDfn.ReadOnly = true;
					break;
				case SpmTemplateData.Column.UpdateOn_Date:
					SetTemplateDataColDfn(columnDfn, "Updated", 65, SpmDbDfn.ColumnIdx.SwmTemplateData_UpdateOn, ColumnAlignment.Center, DataValue.DataType.Date);
					columnDfn.ReadOnly = true;
					break;
			}
			if (!String.IsNullOrEmpty(caption))
				columnDfn.Caption = caption;
			if (width > 0)
				columnDfn.Width = width;
			return columnDfn;
		}

		//-------------------------------------------------------------------
		// TemplateData query filter.
		public override List<string> GetTemplateDataQueryFilter(SpmTemplateData.Params prm)
		{
			List<String> filter = new List<String>();

			// TemplateData Id.
			String includedIds = prm.IncludedIds.Concat(",");
			/*if (!includedIds.IsEmpty())
				filter.Add(SpmDbDfn.GetColumnNameQual(SpmDbDfn.ColumnIdx.SwmTemplateData_Id, aliasTemplateData) + " IN (" + includedIds + ")");
			String excludedIds = prm.ExcludedIds.Concat(",");
			if (!excludedIds.IsEmpty())
				filter.Add(SpmDbDfn.GetColumnNameQual(SpmDbDfn.ColumnIdx.SwmTemplateData_Id, aliasTemplateData) + " NOT IN (" + excludedIds + ")");*/

			//---------------------------------------------------------------
			// Common Properties.

			if (filter.Count < 1) filter.Add("1=1");
			return filter;
		}

		//-------------------------------------------------------------------
		// TemplateData sort columns.
		public List<String> GetTemplateDataSortColumns(SpmTemplateData.Params prm)
		{
			// Sort sequence:
			List<String> sortColumnNames = new List<String>();
			foreach (var columnDfn in prm.SortColumns)
			{
				// Need to ensure correct alias used for TemplateData columns in case of conflict.
				String sortCol = String.Empty;
				if (SpmDbDfn.GetTableForColumn((SpmDbDfn.ColumnIdx)columnDfn.DbColumn) == SpmDbDfn.TableIdx.SwmTemplateData)
				{
					sortCol = SpmDbDfn.GetColumnNameQual((SpmDbDfn.ColumnIdx)columnDfn.DbColumn, aliasTemplateData);
				}
				else
				{
					sortCol = columnDfn.DataName;
					if (!StringUtil.IsEmpty(columnDfn.SortDataName))
						sortCol = columnDfn.SortDataName;
				}
				if (!sortCol.IsEmpty())
				{
					DbOrderByNullMode orderByNullMode = DbOrderByNullMode.Default; // eSaOrderByDemoteNulls, eSaOrderByPromoteNulls
					sortColumnNames.Add(DbQuery.FormatForOrderBy(sortCol, columnDfn.SortAscending, orderByNullMode).Concat(", "));
				}
			}
			sortColumnNames.RemoveBlanks();
			if (sortColumnNames.IsEmpty())
			{
				// Default sort columns:
				//sortColumnNames.Add(SpmDbDfn.GetColumnNameQual(SpmDbDfn.ColumnIdx.SwmTemplateData_Type, aliasTemplateData) + " ASC");
			}
			return sortColumnNames;
		}

		//-------------------------------------------------------------------
		// TemplateData count.
		private long GetTemplateDataCount(String filter)
		{
			ClearErrorState();
			return db.GetRowCount(SpmDbDfn.GetTableName(SpmDbDfn.TableIdx.SwmTemplateData) + " As " + aliasTemplateData, filter);
		}
		public override long GetTemplateDataCount(SpmTemplateData.Params prm)
		{
			ClearErrorState();
			return GetTemplateDataCount(GetTemplateDataQueryFilter(prm).Concat(" AND ", "(", ")"));
		}

		//-------------------------------------------------------------------
		// TemplateData list.
		public override List<SpmTemplateData> GetTemplateDataList(SpmTemplateData.Params prm)
		{
			List<SpmTemplateData> TemplateDataes = new List<SpmTemplateData>();
			DbQuery qry = new DbQuery(db.DbmsType);
			qry.Tables.Add(SpmDbDfn.GetTableName(SpmDbDfn.TableIdx.SwmTemplateData), aliasTemplateData);
			qry.Columns.AddRange(SwmTemplateData_Db.Fields);
			qry.Filters.AddRange(GetTemplateDataQueryFilter(prm));
			// Query data.
			using (var dbConnection = db.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					dbCommand.CommandText = qry.BuildQuery();
					using (DbDataReader dbDataReader = dbCommand.ExecuteReader())
					{
						while (dbDataReader.Read())
						{
							SwmTemplateData_Db dbTemplateData = new SwmTemplateData_Db(DbInfo);
							dbTemplateData.PopulateFrom(dbDataReader);
							TemplateDataes.Add(CreateTemplateData(dbTemplateData));
						}
					}
				}
				catch (Exception exc)
				{
					Logger.Warn(GetType().Name + ".GetTemplateDataList\n\tQuery: " + dbCommand.CommandText + "\n\tException: " + exc.Message);
				}
			}
			return TemplateDataes;
		}

		//-------------------------------------------------------------------
		// TemplateData query execution.
		public override DbResultSet ExecuteTemplateDataQuery(List<ColumnDfn> columns, SpmTemplateData.Params prm)
		{
			ClearErrorState();

			//---------------------------------------------------------------
			// Construct query.
			DbQuery query = new DbQuery(db.DbmsType);
			query.Tables.Add(SpmDbDfn.GetTableName(SpmDbDfn.TableIdx.SwmTemplateData), aliasTemplateData);

			// TemplateData Properties - add columns as defined in query list.
			/*if (columns.HasId((int)SpmTemplateData.Column.Id))
				query.Columns.Add(SpmDbDfn.GetColumnNameQual(SpmDbDfn.ColumnIdx.SwmTemplateData_Id, aliasTemplateData));*/

			// Common Properties
			if (columns.HasId((int)SpmTemplateData.Column.Notes))
				query.Columns.Add(SpmDbDfn.GetColumnNameQual(SpmDbDfn.ColumnIdx.SwmTemplateData_Notes, aliasTemplateData));
			if (columns.HasId((int)SpmTemplateData.Column.Status) || columns.HasId((int)SpmTemplateData.Column.Status_Desc) || columns.HasId((int)SpmTemplateData.Column.Status_Ind))
				query.Columns.Add(SpmDbDfn.GetColumnNameQual(SpmDbDfn.ColumnIdx.SwmTemplateData_Status, aliasTemplateData));
			if (columns.HasId((int)SpmTemplateData.Column.CreateOn_Date))
				query.Columns.Add(SpmDbDfn.GetColumnNameQual(SpmDbDfn.ColumnIdx.SwmTemplateData_CreateOn, aliasTemplateData));
			if (columns.HasId((int)SpmTemplateData.Column.UpdateOn_Date))
				query.Columns.Add(SpmDbDfn.GetColumnNameQual(SpmDbDfn.ColumnIdx.SwmTemplateData_UpdateOn, aliasTemplateData));

			//---------------------------------------------------------------
			// Populate filter.
			query.Filters.AddRange(GetTemplateDataQueryFilter(prm));

			if (prm.IncludedIds.Count != 1)
			{
				// Configure sort sequence.
				foreach (String sortColumn in GetTemplateDataSortColumns(prm))
					query.OrderBy.Add(sortColumn);
			}

			//---------------------------------------------------------------
			//return new DbResultSet_DataTableReader(db, query.BuildQuery());
			return new Sarand.Win.Dbas.Data.DbResultSet_DataReader(db, query.BuildQuery());
		}

		//-------------------------------------------------------------------
		public override DataValue GetTemplateDataDataValue(ColumnDfn column, NamedValue.Map values)
		{
			DataValue value = new DataValue();
			switch ((SpmTemplateData.Column)column.Id)
			{
				// Notes.
				case SpmTemplateData.Column.Notes:
					value = new DataValue(SacsHierarchyItem.FormatForDisplay(values.GetValue(column.DataName).ToString(), 200));
					break;

				// Status.
				case SpmTemplateData.Column.Status_Desc:
				case SpmTemplateData.Column.Status_Ind:
				{
					String statusCode = values.GetValue(column.DataName).ToString();
					SaStatus status = SacsSystem.GetStatusForCode(statusCode);
					if (column.Id == (int)SpmTemplateData.Column.Status_Desc)
						value = new DataValue(SacsSystem.GetStatusDescForCode(statusCode));
					else if (column.Id == (int)SpmTemplateData.Column.Status_Ind)
						value = new DataValue(SpmTemplateData.GetStatusTriState(status));
				}
				break;

				//-----------------------------------------------------------
			}
			return value;
		}
		//-------------------------------------------------------------------
	}
	//=======================================================================
}