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

namespace Sarand.Net.Standard.Base.UpdateLog
{
	//=======================================================================
	// Definitions.

	//=======================================================================
	public abstract class SaUpdateLogConsole : SacsDisposableStateItem
	{
		//-------------------------------------------------------------------
		// Definitions.

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

		//-------------------------------------------------------------------
		// Static initialisation
		static SaUpdateLogConsole ()
		{
		}

		//-------------------------------------------------------------------
		// Protected construction - use derived classes.
		protected SaUpdateLogConsole ()
		{
		}
		protected override void Dispose(bool disposing)
		{
			if (disposing)
			{
			}
			base.Dispose(disposing);
		}

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

		//-------------------------------------------------------------------
		// Utilities - retrieve application data.
		public abstract Dictionary<SysId, String> GetNameForUserIds (List<SysId> userIds);

		//-------------------------------------------------------------------
		// Update Log Form.
		public class ShowUpdateLogConfig
		{
			public ShowUpdateLogConfig(ItemId itemId, String itemCaption, DbUpdateInfo dbUpdateInfo)
			{
				ItemId = itemId;
				ItemCaption = itemCaption;
				DbUpdateInfo = dbUpdateInfo;
			}
			public ItemId ItemId { get; }
			public String ItemCaption { get; }
			public DbUpdateInfo DbUpdateInfo { get; }
		}
		public abstract bool ShowUpdateLogDialog (ShowUpdateLogConfig config);

		//*******************************************************************
		//                U p d a t e   L o g   E n t r i e s
		//*******************************************************************
		// Log updates.
		public abstract bool LogUpdates (SaUpdateLogItemMonitor updateLogItemMonitor);

		//-------------------------------------------------------------------
		// Retrieve list of updates that match the specified params:
		public abstract bool ItemHasLogEntries (ItemId itemId);
		public abstract bool LogEntriesExist (SaUpdateLogEntry.Params prmUpdateLog);
		public abstract SaUpdateLogEntry GetLogEntry (ItemId itemId, String attrName, DateTime loggedAt);
		public abstract long GetLogEntryCount (SaUpdateLogEntry.Params prmUpdateLog);
		public abstract List<SaUpdateLogEntry> GetLogEntries (SaUpdateLogEntry.Params prmUpdateLog);

		//-------------------------------------------------------------------
		// Create a new item data.
		public abstract SaUpdateLogEntry CreateLogEntry (ItemId itemId, String attrName);

		//-------------------------------------------------------------------
		// Store item data.
		public abstract bool StoreLogEntry (SaUpdateLogEntry logEntry, DbUpdateInfo dbUpdateInfo);
		public abstract bool RemoveLogEntry (SaUpdateLogEntry logEntry, DbUpdateInfo dbUpdateInfo);
		public abstract bool ClearLogEntriesForItem (ItemId itemId, DbUpdateInfo dbUpdateInfo);

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