using System;
using System.Collections.Generic;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Bus;
using Sarand.Net.Standard.Base.Dbas;
using Sarand.Net.Standard.Base.ItemOptions;
using Sarand.Net.Standard.Dbas.Base;
using Sarand.Net.Standard.Base.Utils;

namespace Sarand.Net.Standard.Dbas.ItemOptions
{
	//=======================================================================
	public abstract class SaItemOptionConsole_Dbas : SaItemOptionConsole
	{
		//-------------------------------------------------------------------
		// Data members.
		private SaItemOptionMgr_Dbas itemOptionMgr = null;

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

		//-------------------------------------------------------------------
		// Construction.
		protected SaItemOptionConsole_Dbas(ISacsDatabase database)
		{
			Database = database;
			itemOptionMgr = new SaItemOptionMgr_Dbas(this);
		}
		protected override void Dispose(bool disposing)
		{
			if (disposing)
			{
				if (itemOptionMgr != null) itemOptionMgr.Dispose(); itemOptionMgr = null;
			}
			base.Dispose(disposing);
		}

		//-------------------------------------------------------------------
		// Properties.
		internal ISacsDatabase Database { get; set; }
		public override bool DatabaseIsValid { get { return itemOptionMgr.DatabaseIsValid; } }
		public override bool CanUpdateDatabase { get { return itemOptionMgr.CanUpdateDatabase; } }

		//-------------------------------------------------------------------
		// Item Options form.
		public override bool MangageItemOptions(List<SaItemOption> itemOptions)
		{
			throw new NotImplementedException();
		}
		public override bool ShowItemOptionsDialog(ItemId itemId, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (ShowItemOptionsDialogFn != null)
				ShowItemOptionsDialogFn(this, itemId, dbUpdateInfo);
			return false;
		}
		// Method to display Update Log dialog.
		protected delegate bool ShowItemOptionsDialogFunction(SaItemOptionConsole codeTypeConsole, ItemId itemId, DbUpdateInfo dbUpdateInfo);
		protected abstract ShowItemOptionsDialogFunction ShowItemOptionsDialogFn { get; }

		//*******************************************************************
		//                      I t e m   O p t i o n s
		//*******************************************************************
		// Retrieve specific option.
		public override SaItemOption GetItemOption(ItemId itemId, String name, String context)
		{
			return itemOptionMgr.GetItemOption(itemId, name, context);
		}

		// Retrieve options.
		public override List<SaItemOption> GetItemOptions(SaItemOption.Params prmItemOption)
		{
			return itemOptionMgr.GetItemOptionList(prmItemOption);
		}
		public override List<SaItemOption> GetItemOptionsForItem(ItemId itemId)
		{
			if (!ItemId.IsValid(itemId))
				return new List<SaItemOption>();
			SaItemOption.Params prmItemOption = new SaItemOption.Params();
			prmItemOption.IncludedItemIds.Add(itemId);
			return itemOptionMgr.GetItemOptionList(prmItemOption);
		}

		// Retrieve specific option for range of items (all matching item if ID list is blank).
		public override List<SaItemOption> GetItemOptions(List<ItemId> itemIds, String name, String context)
		{
			SaItemOption.Params prmItemOption = new SaItemOption.Params();
			prmItemOption.IncludedItemIds.AddRange(itemIds);
			if (!StringUtil.IsEmpty(name))
				prmItemOption.IncludedNameContexts.Add(name, context);
			return itemOptionMgr.GetItemOptionList(prmItemOption);
		}

		//-------------------------------------------------------------------
		// Create an item option.
		public override SaItemOption CreateItemOption(ItemId itemId, String name, String context)
		{
			return itemOptionMgr.CreateItemOption(itemId, name, context);
		}

		// Item independent options, eg. for processes.
		public override SaItemOption CreateItemOptionByNameContext(String name, String context)
		{
			return itemOptionMgr.CreateItemOption(null, name, context);
		}

		//-------------------------------------------------------------------
		// Store item option - create if not exsts, otherwise update.
		public override bool StoreItemOption(SaItemOption itemOption, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			// If option exists, update it.
			if (itemOptionMgr.ItemOptionExists(itemOption))
			{
				if (!itemOptionMgr.UpdateItemOption(itemOption, dbUpdateInfo))
					return SetErrorState(itemOptionMgr.ErrorStateMessage);
			}
			else
			{
				// Otherwise, insert it.
				if (!itemOptionMgr.InsertItemOption(itemOption, dbUpdateInfo))
					return SetErrorState(itemOptionMgr.ErrorStateMessage);
			}
			return true;
		}
		// Store a specific option against the specified item.
		public override bool StoreItemOption(ItemId itemId, String name, String context, String sValue, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			SaItemOption itemOption = CreateItemOption(itemId, name, context);
			return StoreItemOption(itemOption, dbUpdateInfo);
		}
		// Store the updated list of options against the specified item.
		public override bool StoreItemOptions(ItemId itemId, List<SaItemOption> itemOptions, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			// Validate item options.
			foreach (SaItemOption itemOption in itemOptions)
			{
				if (itemOption.ItemId != null && !itemOption.ItemId.Equals(itemId)) return SetErrorState("Inconsistent item id in option list");
				if (!itemOptionMgr.IsValidItemOption(itemOption)) return SetErrorState("Validation error: " + itemOptionMgr.ErrorStateMessage);
			}
			// Retrieve existing options.
			List<SaItemOption> existingItemOptions = GetItemOptionsForItem(itemId).FindAll(item => item.ItemId.Equals(itemId));
			// Store each option in turn.
			foreach (SaItemOption itemOption in itemOptions)
			{
				if (!StoreItemOption(itemOption, dbUpdateInfo)) return false;
				// Remove matching options in existing list.
				existingItemOptions.RemoveAll(item => item.ItemId.Equals(itemId) && item.Name.EqualsCI(itemOption.Name) && item.Context.EqualsCI(itemOption.Context));
			}
			// Clear options not in the list.
			foreach (SaItemOption itemOption in existingItemOptions)
			{
				if (!ClearItemOption(itemOption, dbUpdateInfo)) return false;
			}
			return true;
		}

		// Remove option(s) for the specified item.
		public override bool ClearItemOption(SaItemOption itemOption, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (itemOptionMgr.ItemOptionExists(itemOption) && !itemOptionMgr.DeleteItemOption(itemOption, dbUpdateInfo))
				return SetErrorState(itemOptionMgr.ErrorStateMessage);
			return true;
		}
		public override bool ClearItemOption(ItemId itemId, String name, String context, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			return ClearItemOption(CreateItemOption(itemId, name, context), dbUpdateInfo);
		}
		public override bool ClearItemOptions(ItemId itemId, DbUpdateInfo dbUpdateInfo)
		{
			ClearErrorState();
			if (!itemOptionMgr.ClearItemOptionsForItem(itemId, dbUpdateInfo))
				return SetErrorState(itemOptionMgr.ErrorStateMessage);
			return true;
		}

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