using System;
using System.Collections.Generic;
using Sarand.Core.Base;
using Sarand.Core.Bus;
using Sarand.PatientMgr.Core.App;
using Sarand.PatientMgr.Core.Bus;
using Sarand.Core.Interfaces;
using Sarand.Core.Dbas.Base;
using Sarand.PatientMgr.Core.Mgr;

namespace Sarand.PatientMgr.Win.Dbas.Bus
{
	//=======================================================================
	class SpmDepartment_Dbas : SpmDepartment
	{
		//-------------------------------------------------------------------
		// Data members.
		private readonly SpmUserContext userContext;

		//-------------------------------------------------------------------
		// Construction.
		public SpmDepartment_Dbas (SpmUserContext userContext, SysId id, SysId institutionId, ushort flags) :
			base(id, institutionId)
		{
			this.userContext = userContext;
			Flags = flags;
		}
		protected override void Dispose (bool disposing)
		{
			if (disposing)
			{
			}
			base.Dispose(disposing);
		}

		//-------------------------------------------------------------------
		// Properties.

		//-------------------------------------------------------------------
		//          A s s o c i a t e d   D a t a   E l e m e n t s
		//-------------------------------------------------------------------
		public override int GetFacilityCount (Spm.FacilityType facilityType)
		{
			ClearErrorState();
			if (!SysId.IsValid(Id)) { SetErrorState("invalid department"); return 0; }
			ISacsDatabase db = SpmGlobals.Application.GetDatabase(userContext.SessionContext);
			if (db == null) { SetErrorState("database unavailable"); return 0; }

			// Build query filter.
			List<String> filters = new List<String>();
			filters.Add(SpmDbDfn.GetColumnName(SpmDbDfn.ColumnIdx.SwmFacility_DepartmentId) + "=" + Id.ToString());
			if (facilityType > 0) filters.Add(" AND " + SpmDbDfn.GetColumnName(SpmDbDfn.ColumnIdx.SwmFacility_Type) + "=" + ((int)facilityType).ToString());
			// Count the number of matching rows.
			return (int)db.GetRowCount(SpmDbDfn.GetTableName(SpmDbDfn.TableIdx.SwmFacility), filters.Concat(" AND ", "(", ")"));
		}

		public override bool HasFacilities (Spm.FacilityType facilityType)
		{
			ClearErrorState();
			return (GetFacilityCount(facilityType) > 0);
		}

		public override bool HasProcedures ()
		{
			ClearErrorState();
			if (!SysId.IsValid(Id)) return SetErrorState("invalid department");
			ISacsDatabase db = SpmGlobals.Application.GetDatabase(userContext.SessionContext);
			if (db == null) return SetErrorState("database unavailable");
			List<String> filters = new List<String>();
			filters.Add(SpmDbDfn.GetColumnName(SpmDbDfn.ColumnIdx.SwmProcedure_DepartmentId) + "=" + Id.ToString());
			return (int)db.GetRowCount(SpmDbDfn.GetTableName(SpmDbDfn.TableIdx.SwmFacility), filters.Concat(" AND ", "(", ")")) > 0;
		}

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