using Sarand.Net.Standard.Dbas.Data;
using Sarand.Net.Standard.Base.App;
using Sarand.Net.Standard.Base.Bus;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Dbas;
using Saxonite.Base.App;
using Saxonite.Net.Standard.Dbas.Bus;
using Saxonite.Net.Standard.Dbas.Internal;
using Saxonite.Net.Standard.Base.Bus;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Text;
using Saxonite.Net.Standard.Base.App;
using System.Linq;
using Sarand.Net.Standard.Base.Utils;
using Saxonite.Net.Standard.Dbas.Internal.Core;

namespace Saxonite.Net.Standard.Dbas.Mgr
{
	//=======================================================================
	partial class SaxAccountMgr_Dbas
	{
		//*******************************************************************
		// Account Mgr - User Config
		//*******************************************************************
		// Utilities.
		private List<StringPair> GetLogProperties(SaxUserConfig userConfig)
		{
			return new List<StringPair>()
			{
				new StringPair("Id",SysId.ToString(userConfig.Id)),
				new StringPair("UserAccountId",SysId.ToString(userConfig.UserAccountId)),
				new StringPair("ConfigType",userConfig.ConfigType.ToString()),
			};
		}

		//-------------------------------------------------------------------
		// Create item.
		public override SaxUserConfig CreateUserConfig(SysId userAccountId, Sax.UserConfigType configType)
		{
			ClearErrorState();
			return new SaxUserConfig_Dbas(CoreDatabase, null, userAccountId, configType, 0);
		}
		private SaxUserConfig_Dbas CreateUserConfig(UserConfig_Db dbUserConfig)
		{
			ClearErrorState();
			SaxUserConfig_Dbas userConfig = new SaxUserConfig_Dbas(CoreDatabase, new SysId(dbUserConfig._Id), new SysId(dbUserConfig._UserAccountId), (Sax.UserConfigType)dbUserConfig._ConfigType, 0);
			PopulateFrom(dbUserConfig, userConfig);
			return userConfig;
		}

		//-------------------------------------------------------------------
		// Get item.
		public override SaxUserConfig GetUserConfig(SaxUserConfig.Params prm)
		{
			ClearErrorState();
			return GetUserConfig(GetUserConfigQueryFilter(prm).Concat(" And ", "(", ")"));
		}
		private SaxUserConfig GetUserConfig(String filter)
		{
			ClearErrorState();
			long count = GetUserConfigCount(filter);
			if (count == 0) return null;
			if (count != 1)
			{
				SetErrorState("Multiple items found");
				return null;
			}
			SaxUserConfig userConfig = null;
			// Query data.
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					UserConfig_Db dbUserConfig = new UserConfig_Db(CoreDbInfo);
					dbUserConfig.PopulateFrom(dbCommand, aliasUserConfig, filter);
					userConfig = CreateUserConfig(dbUserConfig);
				}
				catch (Exception exc)
				{
					SetErrorState("Database query exception");
					SaLogger.Warn($"{SysUtil.Fn}\n\tQuery: {dbCommand.CommandText}\n\t{ExceptionUtil.GetErrorStateMessage(exc)}");
				}
			}
			return userConfig;
		}

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

		//-------------------------------------------------------------------
		// Insert item.
		public override bool InsertUserConfig(SaxUserConfig userConfig, DbUpdateInfo dbUpdateInfo)
		{
			String fn = GetType().Name + ".InsertUserConfig";
			ClearErrorState();
			if (!IsValidUserConfig(userConfig)) return false;
			if (SysId.IsValid(userConfig.Id)) return SetErrorState(ErrorMessage.ValidItemId);
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					UserConfig_Db dbUserConfig = new UserConfig_Db(CoreDbInfo);
					PopulateTo(dbUserConfig, userConfig, dbUpdateInfo);
					if (UserConfig_Db.FieldsNonId.Contains("Id"))
					{
						// Generate next Id.
						dbUserConfig._Id = CoreDatabase.GetNextIdFromTable("UserConfig");
					}
					dbUserConfig.ExecuteInsertCommand(dbCommand);
					//userConfig.Id = new SysId(dbUserConfig._Id);
					userConfig.Changed = false;
					if (DebugMode) SaLogger.Debug(fn + " Inserted. " + GetLogProperties(userConfig).Concat(": ").Concat("", "\n\t"));
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Update item.
		public override bool UpdateUserConfig(SaxUserConfig userConfig, DbUpdateInfo dbUpdateInfo)
		{
			String fn = GetType().Name + ".UpdateUserConfig";
			ClearErrorState();
			if (!IsValidUserConfig(userConfig)) return false;
			if (!SysId.IsValid(userConfig.Id)) return SetErrorState(ErrorMessage.InvalidItemId);
			if (!userConfig.Changed)
			{
				if (DebugMode) SaLogger.Debug(fn + " Data not changed. " + GetLogProperties(userConfig).Concat(": ").Concat("", "\n\t"));
				return true;
			}
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					// Retrieve item.
					dbConnection.Open();
					UserConfig_Db dbUserConfig = new UserConfig_Db(CoreDbInfo);
					dbUserConfig.PopulateFrom(dbCommand, aliasUserConfig, "Id=" + SysId.ToString(userConfig.Id));
					// Update properties.
					PopulateTo(dbUserConfig, userConfig, dbUpdateInfo);
					dbUserConfig.ExecuteUpdateCommand(dbCommand);
					userConfig.Changed = false;
					if (DebugMode) SaLogger.Debug(fn + " Updated. " + GetLogProperties(userConfig).Concat(": ").Concat("", "\n\t"));
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Delete item.
		public override bool UserConfigCanBeDeleted(SaxUserConfig userConfig)
		{
			ClearErrorState();
			if (!base.UserConfigCanBeDeleted(userConfig)) return false;
			return true;
		}
		public override bool DeleteUserConfig(SaxUserConfig userConfig, DbUpdateInfo dbUpdateInfo)
		{
			String fn = GetType().Name + ".DeleteUserConfig";
			ClearErrorState();
			if (!UserConfigCanBeDeleted(userConfig)) return false;
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					// Retrieve item.
					dbConnection.Open();
					UserConfig_Db dbUserConfig = new UserConfig_Db(CoreDbInfo);
					dbUserConfig.PopulateFrom(dbCommand, aliasUserConfig, "Id=" + SysId.ToString(userConfig.Id));
					// Delete item.
					dbCommand.CommandType = System.Data.CommandType.Text;
					dbCommand.CommandText = "DELETE FROM " + SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.UserConfig) + " WHERE Id=" + SysId.ToString(userConfig.Id) + ";";
					dbCommand.ExecuteNonQuery();
					userConfig.Changed = false;
					if (DebugMode) SaLogger.Debug(fn + " Deleted. " + GetLogProperties(userConfig).Concat(": ").Concat("", "\n\t"));
				}
				catch (Exception exc) { SetErrorState(exc.Message); }
			}
			return !HasErrorState();
		}

		//-------------------------------------------------------------------
		// Copy data properties to and from database.
		private void PopulateTo(UserConfig_Db dbUserConfig, SaxUserConfig userConfig, DbUpdateInfo dbUpdateInfo)
		{
			dbUserConfig._UserAccountId = SysId.ToInt(userConfig.UserAccountId);
			dbUserConfig._ConfigType = (short)userConfig.ConfigType;
			dbUserConfig._ConfigData = userConfig.ConfigData;
			// Common.
			//dbUserConfig._Flags = (short)userConfig.Flags;
			if (!DateUtil.IsValid(dbUserConfig._CreateOn))
			{
				dbUserConfig._CreateOn = DateTime.Now;
			}
			dbUserConfig._UpdateOn = DateTime.Now;
		}
		private void PopulateFrom(UserConfig_Db dbUserConfig, SaxUserConfig userConfig)
		{
			//userConfig.UserAccountId = new SysId(dbUserConfig._UserAccountId);
			//userConfig.ConfigType = (Sax.UserConfigType)dbUserConfig._ConfigType;
			userConfig.ConfigData = dbUserConfig._ConfigData;
			// Common.
			userConfig.SetCreateStamp(dbUserConfig._CreateOn, new SysId(), "");
			userConfig.SetUpdateStamp(dbUserConfig._UpdateOn, new SysId(), "");
			userConfig.AcceptChanges();
		}

		//-------------------------------------------------------------------
		// Item column definitions.
		private static readonly String aliasUserConfig = "UsrCfg";
		private static readonly String aliasUserConfig_UserAccount = "UsrCfg_Usr";
		private static readonly String prefixUserConfig_UserAccount = aliasUserConfig_UserAccount + "_";
		private void SetUserConfigColDfn
			(ColumnDfn col, String caption, int width, SaxDbDfn_Core.ColumnIdx dbCol,
			ColumnAlignment align = ColumnAlignment.Default, DataValue.DataType dataType = DataValue.DataType.String,
			String alias = "", String prefix = "")
		{
			if (String.IsNullOrEmpty(alias) && SaxDbDfn_Core.GetTableForColumn(dbCol) == SaxDbDfn_Core.TableIdx.UserConfig)
				alias = aliasUserConfig;
			col.Set(caption, width, (int)dbCol, prefix + SaxDbDfn_Core.GetColumnName(dbCol, false), SaxDbDfn_Core.GetColumnNameQual(dbCol, alias), dataType, align);
			if (dataType == DataValue.DataType.String && dbCol != SaxDbDfn_Core.ColumnIdx.Unknown)
				col.MaxLength = (int)SaxDbDfn_Core.GetColTextLen(dbCol);
		}
		public override ColumnDfn GetUserConfigColumnDfn(SaxUserConfig.Column columnId, string caption = "", int width = 0)
		{
			ColumnDfn columnDfn = new ColumnDfn((int)columnId, caption, width);
			switch (columnId)
			{
				//-----------------------------------------------------------
				case SaxUserConfig.Column.Pos:
					SetUserConfigColDfn(columnDfn, "Pos", 60, SaxDbDfn_Core.ColumnIdx.Unknown, ColumnAlignment.Right);
					columnDfn.SortMode = ColumnDfn.ColumnSortMode.Off;
					columnDfn.ReadOnly = true;
					columnDfn.Resizable = false;
					break;
				case SaxUserConfig.Column.UserAccountId:
					SetUserConfigColDfn(columnDfn, "User Id", 80, SaxDbDfn_Core.ColumnIdx.UserConfig_UserAccountId, ColumnAlignment.Right, DataValue.DataType.Long);
					columnDfn.ReadOnly = true;
					break;

				//-------------------------------------------------------
				// User.
				case SaxUserConfig.Column.User_EmailAddress:
					SetUserConfigColDfn(columnDfn, "Email address", 160, SaxDbDfn_Core.ColumnIdx.UserAccount_EmailAddress, ColumnAlignment.Left, DataValue.DataType.String, aliasUserConfig_UserAccount, prefixUserConfig_UserAccount);
					columnDfn.ReadOnly = true;
					break;
				case SaxUserConfig.Column.User_DisplayName:
					SetUserConfigColDfn(columnDfn, "User", 160, SaxDbDfn_Core.ColumnIdx.Unknown, ColumnAlignment.Left, DataValue.DataType.String);
					columnDfn.ReadOnly = true;
					break;
				case SaxUserConfig.Column.User_Title:
					SetUserConfigColDfn(columnDfn, "Title", 80, SaxDbDfn_Core.ColumnIdx.UserAccount_Title, ColumnAlignment.Left, DataValue.DataType.String, aliasUserConfig_UserAccount, prefixUserConfig_UserAccount);
					columnDfn.ReadOnly = true;
					break;
				case SaxUserConfig.Column.User_FirstName:
					SetUserConfigColDfn(columnDfn, "First name", 120, SaxDbDfn_Core.ColumnIdx.UserAccount_FirstName, ColumnAlignment.Left, DataValue.DataType.String, aliasUserConfig_UserAccount, prefixUserConfig_UserAccount);
					columnDfn.ReadOnly = true;
					break;
				case SaxUserConfig.Column.User_LastName:
					SetUserConfigColDfn(columnDfn, "Last name", 120, SaxDbDfn_Core.ColumnIdx.UserAccount_LastName, ColumnAlignment.Left, DataValue.DataType.String, aliasUserConfig_UserAccount, prefixUserConfig_UserAccount);
					columnDfn.ReadOnly = true;
					break;

				//-----------------------------------------------------------
				// Configuration.
				case SaxUserConfig.Column.ConfigType:
					SetUserConfigColDfn(columnDfn, "Type", 60, SaxDbDfn_Core.ColumnIdx.UserConfig_ConfigType, ColumnAlignment.Center, DataValue.DataType.Long);
					columnDfn.ReadOnly = true;
					break;

				//-----------------------------------------------------------
				// Derived properties.

				//-----------------------------------------------------------
				// Common properties.
				/*
				case SaxUserConfig.Column.Flags:
                    SetUserConfigColDfn(columnDfn, "Flags", 60, SaxDbDfn_Core.ColumnIdx.UserConfig_Flags, ColumnAlignment.Center, DataValue.DataType.Long);
                    break;
                */
				case SaxUserConfig.Column.CreateOn_Date:
					SetUserConfigColDfn(columnDfn, "Created", 80, SaxDbDfn_Core.ColumnIdx.UserConfig_CreateOn, ColumnAlignment.Center, DataValue.DataType.Date);
					columnDfn.ReadOnly = true;
					break;
				case SaxUserConfig.Column.UpdateOn_Date:
					SetUserConfigColDfn(columnDfn, "Updated", 80, SaxDbDfn_Core.ColumnIdx.UserConfig_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;
		}

		//-------------------------------------------------------------------
		// Item query filter.
		public override List<string> GetUserConfigQueryFilter(SaxUserConfig.Params prm)
		{
			List<String> filter = new List<String>();

			// User accounts.
			String userAccountIdsIncluded = prm.UserAccountIdsIncluded.Concat(",");
			if (!userAccountIdsIncluded.IsEmpty())
				filter.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_UserAccountId, aliasUserConfig) + " IN (" + userAccountIdsIncluded + ")");

			// Config type.
			if (prm.ConfigType > 0)
				filter.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_ConfigType, aliasUserConfig) + "=" + ((short)prm.ConfigType).ToString());

			if (filter.Count < 1) filter.Add("1=1");
			return filter;
		}
		// Item sort columns.
		public List<String> GetUserConfigSortColumns(SaxUserConfig.Params prm)
		{
			// Sort sequence:
			List<String> sortColumnNames = new List<String>();
			foreach (var columnDfn in prm.SortColumns)
			{
				// Need to ensure correct alias used for UserConfig columns in case of conflict.
				String sortCol = String.Empty;
				if (SaxDbDfn_Core.GetTableForColumn((SaxDbDfn_Core.ColumnIdx)columnDfn.DbColumn) == SaxDbDfn_Core.TableIdx.UserConfig)
				{
					sortCol = SaxDbDfn_Core.GetColumnNameQual((SaxDbDfn_Core.ColumnIdx)columnDfn.DbColumn, aliasUserConfig);
				}
				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(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_UserAccountId, aliasUserConfig) + " ASC");
				sortColumnNames.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_ConfigType, aliasUserConfig) + " ASC");
			}
			return sortColumnNames;
		}

		//-------------------------------------------------------------------
		// Item count.
		private long GetUserConfigCount(String filter)
		{
			ClearErrorState();
			return CoreDatabase.GetRowCount(SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.UserConfig) + " As " + aliasUserConfig, filter);
		}
		public override long GetUserConfigCount(SaxUserConfig.Params prm)
		{
			ClearErrorState();
			return GetUserConfigCount(GetUserConfigQueryFilter(prm).Concat(" AND ", "(", ")"));
		}

		//-------------------------------------------------------------------
		// Item list.
		public override List<SaxUserConfig> GetUserConfigList(SaxUserConfig.Params prm)
		{
			ClearErrorState();
			List<SaxUserConfig> userConfigs = new List<SaxUserConfig>();
			DbQuery qry = new DbQuery(CoreDatabase.DbmsType);
			qry.Tables.Add(SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.UserConfig), aliasUserConfig);
			UserConfig_Db dbUserConfig = new UserConfig_Db(CoreDbInfo);
			qry.Columns.AddRange(dbUserConfig.ExistingColumnNames);
			qry.Filters.AddRange(GetUserConfigQueryFilter(prm));
			qry.OrderBy.AddRange(GetUserConfigSortColumns(prm));
			// Query data.
			using (var dbConnection = CoreDatabase.CreateConnection())
			using (var dbCommand = dbConnection.CreateCommand())
			{
				try
				{
					dbConnection.Open();
					dbCommand.CommandText = qry.BuildQuery(prm.ResultsPaging);
					using (DbDataReader dbDataReader = dbCommand.ExecuteReader())
					{
						while (dbDataReader.Read())
						{
							dbUserConfig = new UserConfig_Db(CoreDbInfo);
							dbUserConfig.PopulateFrom(dbDataReader);
							userConfigs.Add(CreateUserConfig(dbUserConfig));
						}
					}
				}
				catch (Exception exc)
				{
					SetErrorState("Database query exception");
					SaLogger.Warn($"{SysUtil.Fn}\n\tQuery: {dbCommand.CommandText}\n\t{ExceptionUtil.GetErrorStateMessage(exc)}");
				}
			}
			return userConfigs;
		}

		//-------------------------------------------------------------------
		// Item query execution.
		public override DbResultSet ExecuteUserConfigQuery(List<ColumnDfn> columns, SaxUserConfig.Params prm)
		{
			ClearErrorState();

			//---------------------------------------------------------------------
			// Construct query.
			DbQuery query = new DbQuery(CoreDatabase.DbmsType);
			query.Tables.Add(SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.UserConfig), aliasUserConfig);

			// Add columns as defined in query list.
			bool hasUserAccountCols = (columns.HasId(SaxUserConfig.Column.User_EmailAddress) || columns.HasId(SaxUserConfig.Column.User_DisplayName) || columns.HasId(SaxUserConfig.Column.User_Title) || columns.HasId(SaxUserConfig.Column.User_FirstName) || columns.HasId(SaxUserConfig.Column.User_LastName));
			if (columns.HasId(SaxUserConfig.Column.UserAccountId) || hasUserAccountCols)
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_UserAccountId, aliasUserConfig));
			if (columns.HasId(SaxUserConfig.Column.ConfigType))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_ConfigType, aliasUserConfig));
			// Common properties.
			//if (columns.HasId(SaxUserConfig.Column.Flags))
			//	query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_Flags, aliasUserConfig));
			if (columns.HasId(SaxUserConfig.Column.CreateOn_Date))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_CreateOn, aliasUserConfig));
			if (columns.HasId(SaxUserConfig.Column.UpdateOn_Date))
				query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_UpdateOn, aliasUserConfig));

			//---------------------------------------------------------------------
			// User Account.
			if (hasUserAccountCols)
			{
				DbQueryJoin joinUserAccount = new DbQueryJoin(DbJoinType.LeftOuter);
				joinUserAccount.Table = new StringPair(SaxDbDfn_Core.GetTableName(SaxDbDfn_Core.TableIdx.UserAccount), aliasUserConfig_UserAccount);
				joinUserAccount.Filters.Add(SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserAccount_Id, aliasUserConfig_UserAccount) + "=" + SaxDbDfn_Core.GetColumnNameQual(SaxDbDfn_Core.ColumnIdx.UserConfig_UserAccountId, aliasUserConfig));
				query.Joins.Add(joinUserAccount);
				List<SaxDbDfn_Core.ColumnIdx> cols = new List<SaxDbDfn_Core.ColumnIdx>();
				cols.Add(SaxDbDfn_Core.ColumnIdx.UserAccount_EmailAddress);
				cols.Add(SaxDbDfn_Core.ColumnIdx.UserAccount_Title);
				cols.Add(SaxDbDfn_Core.ColumnIdx.UserAccount_FirstName);
				cols.Add(SaxDbDfn_Core.ColumnIdx.UserAccount_LastName);
				foreach (var col in cols)
					query.Columns.Add(SaxDbDfn_Core.GetColumnNameQual(col, aliasUserConfig_UserAccount), prefixUserConfig_UserAccount + SaxDbDfn_Core.GetColumnName(col, false));
			}

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

			// Sort is applied if the results are likely to be more than a single row.
			if (prm.UserAccountIdsIncluded.Count != 1 || prm.ConfigType <= 0)
			{
				// Configure sort sequence.
				foreach (String sortColumn in GetUserConfigSortColumns(prm))
					query.OrderBy.Add(sortColumn);
			}

			//---------------------------------------------------------------------
			//return new DbResultSet_DataTableReader(db, query.BuildQuery(prm.ResultsPaging));
			return DbResultSet_DataReader.ExecuteQuery(CoreDatabase, query.BuildQuery(prm.ResultsPaging));
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
}