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 System;
using System.Collections.Generic;
using System.Text;

namespace Sarand.Net.Standard.Base.ItemDocs
{
	//=======================================================================
	public abstract class SaItemDocMgr : SacsItemMgr
	{
		//-------------------------------------------------------------------
		// Definitions.

		//-------------------------------------------------------------------
		// Data members.

		//-------------------------------------------------------------------
		// Static initialisation.
		static SaItemDocMgr ()
		{
		}

		//-------------------------------------------------------------------
		// Construction.
		protected SaItemDocMgr ()
		{
		}

		//-------------------------------------------------------------------
		// Properties.
		public abstract bool DatabaseIsValid { get; }
		public abstract bool CanUpdateDatabase { get; }

		//*******************************************************************
		//                         I t e m   D o c s
		//*******************************************************************
		// Utilities.
		public abstract bool ItemHasDocs (ItemId itemId, bool ignoreDeleted = true);
		public abstract bool ItemHasDocs (ItemId itemId, SaItemDocConsole.Category category, bool ignoreDeleted = true);

		//-------------------------------------------------------------------
		// Retrieve individual item data entries.
		public abstract bool ItemDocExists (SysId id);
		public abstract SaItemDoc GetItemDoc (SysId id);
		public abstract SaItemDoc GetItemDoc (SaItemDoc.Params prmItemDoc);

		// Create Item Data.
		public abstract SaItemDoc CreateItemDoc (ItemId itemId, SaItemDocConsole.Category category);

		//-------------------------------------------------------------------
		// Validate Item Data.
		public bool IsValidItemDoc (SaItemDoc itemDoc)
		{
			ClearErrorState();
			if (itemDoc == null) return SetErrorState(ErrorMessage.ItemNotSpecified);
			return IsValidItemDocData(itemDoc.GetData(), new SaItemDoc.ErrField());
		}
		public virtual bool IsValidItemDocData (SaItemDoc.Data itemDocData, SaItemDoc.ErrField errField)
		{
			ClearErrorState();
			if ((int)itemDocData.ItemId.Type < 1)
			{
				errField.ItemType = SacsHierarchyItem.ValidValue.Invalid;
				return SetErrorState("Item type must be supplied");
			}
			if (!SysId.IsValid(itemDocData.ItemId.Id))
			{
				errField.ItemId = SacsHierarchyItem.ValidValue.Invalid;
				return SetErrorState("Item Id must be supplied");
			}
			if ((int)itemDocData.Category < 1)
			{
				errField.Category = SacsHierarchyItem.ValidValue.Invalid;
				return SetErrorState("Category must be supplied");
			}
			if (!IsValidValue(itemDocData.DocType, "Doc type", (long)SaItemDocsDbDfn.GetColTextLen(SaItemDocsDbDfn.ColumnIdx.SaItemDoc_Type), true))
			{
				errField.DocType = SacsHierarchyItem.ValidValue.Invalid;
				return false;
			}
			if (!IsValidValue(itemDocData.DescBrief, "Desciption", (long)SaItemDocsDbDfn.GetColTextLen(SaItemDocsDbDfn.ColumnIdx.SaItemDoc_DescBrief)))
			{
				errField.DescBrief = SacsHierarchyItem.ValidValue.Invalid;
				return false;
			}
			if (!IsValidValue(itemDocData.Folder, "Folder", (long)SaItemDocsDbDfn.GetColTextLen(SaItemDocsDbDfn.ColumnIdx.SaItemDoc_Folder)))
			{
				errField.Folder = SacsHierarchyItem.ValidValue.Invalid;
				return false;
			}
			if (!IsValidValue(itemDocData.Filename, "Filename", (long)SaItemDocsDbDfn.GetColTextLen(SaItemDocsDbDfn.ColumnIdx.SaItemDoc_Filename), true))
			{
				errField.Filename = SacsHierarchyItem.ValidValue.Invalid;
				return false;
			}
			if (!IsValidValue(itemDocData.MimeType, "Mime", (long)SaItemDocsDbDfn.GetColTextLen(SaItemDocsDbDfn.ColumnIdx.SaItemDoc_MimeType)))
			{
				errField.MimeType = SacsHierarchyItem.ValidValue.Invalid;
				return false;
			}
			// Common properties.
			if (!IsValidValue(itemDocData.Notes, "notes", (long)SaItemDocsDbDfn.GetColTextLen(SaItemDocsDbDfn.ColumnIdx.SaItemDoc_Notes)))
			{
				errField.Notes = SacsHierarchyItem.ValidValue.Invalid;
				return false;
			}
			if (!SaItemDoc.ValidStatuses.Contains(itemDocData.Status))
			{
				errField.Status = SacsHierarchyItem.ValidValue.Invalid;
				return SetErrorState(ErrorMessage.InvalidStatus);
			}
			return true;
		}

		//-------------------------------------------------------------------
		// Item Data database interface.
		public abstract bool InsertItemDoc (SaItemDoc itemDoc, DbUpdateInfo dbUpdateInfo);
		public abstract bool UpdateItemDoc (SaItemDoc itemDoc, DbUpdateInfo dbUpdateInfo);
		public virtual bool ItemDocCanBeDeleted (SaItemDoc itemDoc)
		{
			ClearErrorState();
			if (!SysId.IsValid(itemDoc.Id)) return SetErrorState(ErrorMessage.InvalidItemId);
			return true;
		}
		public abstract bool DeleteItemDoc (SaItemDoc itemDoc, DbUpdateInfo dbUpdateInfo);
		public abstract bool ClearItemDocs (ItemId itemId, DbUpdateInfo dbUpdateInfo);
		public abstract bool ClearItemDocs (ItemId itemId, SaItemDocConsole.Category category, DbUpdateInfo dbUpdateInfo);

		//-------------------------------------------------------------------
		// Item Data list.
		public abstract ColumnDfn GetItemDocColumnDfn (SaItemDoc.Column columnId, String caption = "", int width = 0);
		public abstract List<String> GetItemDocQueryFilter (SaItemDoc.Params prm);
		public abstract long GetItemDocCount (SaItemDoc.Params prm);
		public abstract List<SaItemDoc> GetItemDocList (SaItemDoc.Params prm);
		public abstract DbResultSet ExecuteItemDocQuery (List<ColumnDfn> columns, SaItemDoc.Params prm);

		//-------------------------------------------------------------------
		/// <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 GetItemDocDataValue (ColumnDfn column, NamedValue.Map values)
		{
			DataValue value = new DataValue();
			switch ((SaItemDoc.Column)column.Id)
			{
				//-----------------------------------------------------------
				// Item type.
				case SaItemDoc.Column.ItemType_Desc:
				{
					short itemType = (short)values.GetValue(column.DataName).AsLong();
					value = new DataValue(itemType.ToString());
				}
				break;

				//-----------------------------------------------------------
				// Category.
				case SaItemDoc.Column.Category_Desc:
				{
					short category = (short)values.GetValue(column.DataName).AsLong();
					value = new DataValue(category.ToString());
				}
				break;

				//-----------------------------------------------------------
				// Document type.
				case SaItemDoc.Column.DocType_Desc:
				{
					short docType = (short)values.GetValue(column.DataName).AsLong();
					value = new DataValue(docType.ToString());
				}
				break;

				//-----------------------------------------------------------
				// Notes.
				case SaItemDoc.Column.Notes:
				{
					value = new DataValue(SacsHierarchyItem.FormatForDisplay(values.GetValue(column.DataName).ToString(), 200));
				}
				break;

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

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

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