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 Sarand.Net.Standard.Base.Utils;
using Saxonite.Base.App;
using Saxonite.Net.Standard.Base.Bus;
using System;
using System.Collections.Generic;
using System.Text;

namespace Saxonite.Net.Standard.Base.Mgr
{
	//=======================================================================
	partial class SaxReferenceMgr
	{
		//*******************************************************************
		// Reference Mgr - Region
		//*******************************************************************
		// Utilities.

		//-------------------------------------------------------------------
		// Create item.
		public abstract SaxRegion CreateRegion();

		//-------------------------------------------------------------------
		// Item exists.
		public bool RegionExistsById(SysId id)
		{
			ClearErrorState();
			if (!SysId.IsValid(id)) return false;
			SaxRegion.Params prmRegion = new SaxRegion.Params();
			prmRegion.IdsIncluded.Add(id);
			prmRegion.StatusCat = SaxRegion.StatusCat.Any;
			return GetRegionCount(prmRegion) == 1;
		}
		public bool RegionExistsByName(String name)
		{
			ClearErrorState();
			if (StringUtil.IsEmpty(name)) return false;
			SaxRegion.Params prmRegion = new SaxRegion.Params();
			prmRegion.NameFull = name;
			prmRegion.StatusCat = SaxRegion.StatusCat.Any;
			return GetRegionCount(prmRegion) == 1;
		}

		//-------------------------------------------------------------------
		// Retrieve individual items.
		public abstract SaxRegion GetRegion(SaxRegion.Params prmRegion);
		public SaxRegion GetRegionById(SysId id)
		{
			ClearErrorState();
			if (!SysId.IsValid(id)) return null;
			SaxRegion.Params prmRegion = new SaxRegion.Params();
			prmRegion.IdsIncluded.Add(id);
			prmRegion.StatusCat = SaxRegion.StatusCat.Any;
			return GetRegion(prmRegion);
		}
		public SaxRegion GetRegionByName(String name)
		{
			ClearErrorState();
			if (StringUtil.IsEmpty(name)) return null;
			SaxRegion.Params prmRegion = new SaxRegion.Params();
			prmRegion.NameFull = name;
			prmRegion.StatusCat = SaxRegion.StatusCat.Any;
			return GetRegion(prmRegion);
		}

		//-------------------------------------------------------------------
		// Validate item data.
		public bool IsValidRegion(SaxRegion region)
		{
			ClearErrorState();
			if (region == null) return SetErrorState(ErrorMessage.ItemNotSpecified);
			return IsValidRegionData(region.GetData(), new SaxRegion.ErrField());
		}
		public virtual bool IsValidRegionData(SaxRegion.Data data, SaxRegion.ErrField errField)
		{
			ClearErrorState();

			// Region type.
			if (errField.RegionType != SacsHierarchyItem.ValidValue.Ignore && (int)data.RegionType < 1)
			{
				errField.RegionType = SacsHierarchyItem.ValidValue.Invalid;
				return SetErrorState("type must be specified");
			}
			// ISO 2 code.
			if (errField.CountryIso2Code != SacsHierarchyItem.ValidValue.Ignore)
			{
				if (data.RegionType == App.Sax.RegionType.Country && !IsValidValue(data.CountryIso2Code, "ISO2 code", (long)SaxDbDfn_Core.GetColTextLen(SaxDbDfn_Core.ColumnIdx.Region_CountryIso2Code), true, true))
				{
					errField.CountryIso2Code = SacsHierarchyItem.ValidValue.Invalid;
					return false;
				}
				else if ((int)data.RegionType > 0 && data.RegionType != App.Sax.RegionType.Country && !StringUtil.IsEmpty(data.CountryIso2Code))
				{
					errField.CountryIso2Code = SacsHierarchyItem.ValidValue.Invalid;
					return SetErrorState("ISO2 code is only relevant to countries");
				}
			}
			// Name.
			if (errField.Name != SacsHierarchyItem.ValidValue.Ignore && !IsValidValue(data.Name, "name", (long)SaxDbDfn_Core.GetColTextLen(SaxDbDfn_Core.ColumnIdx.Region_Name), true))
			{
				errField.Name = SacsHierarchyItem.ValidValue.Invalid;
				return false;
			}

			// Parent region.
			if (errField.RegionIdParent != SacsHierarchyItem.ValidValue.Ignore && SysId.IsValid(data.RegionIdParent))
			{
				SaxRegion parentRegion = GetRegionById(data.RegionIdParent);
				if (parentRegion == null)
				{
					errField.Name = SacsHierarchyItem.ValidValue.Invalid;
					return SetErrorState("Parent region doesn't exist");
				}
				if (!SaxRegion.IsValidParentRegionType(data.RegionType, parentRegion.RegionType))
				{
					errField.Name = SacsHierarchyItem.ValidValue.Invalid;
					return SetErrorState("Invalid parent region type");
				}
			}

			// Common properties.
			if (errField.Notes != SacsHierarchyItem.ValidValue.Ignore && !IsValidValue(data.Notes, "notes", (long)SaxDbDfn_Core.GetColTextLen(SaxDbDfn_Core.ColumnIdx.Region_Notes)))
			{
				errField.Notes = SacsHierarchyItem.ValidValue.Invalid;
				return false;
			}
			if (errField.Status != SacsHierarchyItem.ValidValue.Ignore)
			{
				if (!IsValidValue(data.StatusCode, "status", (long)SaxDbDfn_Core.GetColTextLen(SaxDbDfn_Core.ColumnIdx.Region_Status), true, true))
				{
					errField.Status = SacsHierarchyItem.ValidValue.Invalid;
					return false;
				}
				if (!SaxRegion.ValidStatuses.Contains(data.Status))
				{
					errField.Status = SacsHierarchyItem.ValidValue.Invalid;
					return SetErrorState(ErrorMessage.InvalidStatus);
				}
			}

			//---------------------------------------------------------------
			// Associated data - ignore for deleted items.
			if (!data.IsStatusDeleted)
			{
				// ToDo Parent region.
			}

			//---------------------------------------------------------------
			return true;
		}

		//-------------------------------------------------------------------
		// Region database interface.
		public abstract bool InsertRegion(SaxRegion region, DbUpdateInfo dbUpdateInfo);
		public abstract bool UpdateRegion(SaxRegion region, DbUpdateInfo dbUpdateInfo);
		public virtual bool RegionCanBeDeleted(SaxRegion region)
		{
			ClearErrorState();
			return true;
		}
		public abstract bool DeleteRegion(SaxRegion region, DbUpdateInfo dbUpdateInfo);

		//-------------------------------------------------------------------
		// Region list:
		public abstract ColumnDfn GetRegionColumnDfn(SaxRegion.Column columnId, String caption = "", int width = 0);
		public abstract List<String> GetRegionQueryFilter(SaxRegion.Params prmRegion);
		public abstract long GetRegionCount(SaxRegion.Params prmRegion);
		public abstract List<SaxRegion> GetRegionList(SaxRegion.Params prmRegion);
		public List<SaxRegion> GetRegionListByIds(List<SysId> regionIds)
		{
			if (regionIds.IsEmpty()) return new List<SaxRegion>();
			SaxRegion.Params prmRegion = new SaxRegion.Params();
			prmRegion.IdsIncluded.AddIds(regionIds);
			prmRegion.StatusCat = SaxRegion.StatusCat.Any;
			return GetRegionList(prmRegion);
		}
		public abstract DbResultSet ExecuteRegionQuery(List<ColumnDfn> columns, SaxRegion.Params prmRegion);

		//-------------------------------------------------------------------
		/// <summary>
		/// Extract and format result set data value where specific handling is required.
		/// <para>Where response is an invalid data value, format value using column.FormatValue(values).</para>
		/// </summary>
		public virtual DataValue GetRegionDataValue(ColumnDfn column, NamedValue.Map values)
		{
			DataValue value = new DataValue();
			switch ((SaxRegion.Column)column.Id)
			{
				//-----------------------------------------------------------
				// Notes - limit to 200 chars.
				case SaxRegion.Column.Notes:
					value = new DataValue(SacsHierarchyItem.FormatForDisplay(values.GetValue(column.DataName).ToString(), 200));
					break;

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

				//-----------------------------------------------------------
				default:
					value = values.GetValue(column.DataName);
					break;

			}
			return value;
		}

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