//list for storing all active assignemnts that are realted to the new forecast creations
private List<pse__Assignment__c> assignmentList = new List<pse__Assignment__c>();

/************************************************************************************************************
// Name         bulkBefore
// Description  Standard implementation of the TriggerHandler.bulkBefore() interface method.
*************************************************************************************************************/
public override void bulkBefore()
{
    if (trigger.isDelete)
    {
        //store parent Levvel Forecast records that are about to be deleted
        list<Id> forecastIds = new list<Id>();
        for(SObject so :trigger.old)
        {
            Levvel_Forecast__c forecast = (Levvel_Forecast__c)so;
            forecastIds.add(forecast.id);
        }

            //Now we need to query all child Forecast Period records related to the Levvel Forecast we are about to delete
            forecastPeriodList = [SELECT Id, Levvel_Forecast__c FROM Forecast_Periods__c WHERE Levvel_Forecast__c IN: forecastIds];
            system.debug('List of Forecast Periods ' + forecastPeriodList);
        }

    if(trigger.isInsert)
    {
        //store the LevvelForecast record for update
        list<Id> forecastsToUpdate = new List<Id>();
        for(SObject so :trigger.new)
        {

            Levvel_Forecast__c newForecast = (Levvel_Forecast__c)so;
            if(newForecast.RecordTypeId == '0121N000000U6GYQA0' )
            {
                forecastsToUpdate.add(newForecast.employee__c);
            }

        }

            //Now we need to query all the assignments
            assignmentList = [SELECT id, pse__Resource__c FROM pse__Assignment__c WHERE pse__Resource__c IN: forecastsToUpdate];

        }
}



/************************************************************************************************************
// Name         beforeInsert
// Description  Standard implementation of the TriggerHandler.beforeInsert() interface method.
*************************************************************************************************************/
public override void beforeInsert (SObject so)
{
    Levvel_Forecast__c newForecast = (Levvel_Forecast__c)so;

    loadAssignment(newForecast);
}


/************************************************************************************************************
// Name         beforeDelete
// Description  Standard implementation of the TriggerHandler.beforeInsert() interface method.
*************************************************************************************************************/
public override void beforeDelete(SObject so)
{
    Levvel_Forecast__c oldForecast = (Levvel_Forecast__c)so;

    deleteForecastPeriods(oldForecast);
}


 /************************************************************************************************************
// Name         loadAssignment
// Description  Helper method to validate resource requests on an opportunity
*************************************************************************************************************/
private void loadAssignment (Levvel_Forecast__c newForecast)
{

    for (pse__Assignment__c ass :assignmentList )
    if(ass.pse__End_Date__c > newForecast.Today__c && ass.pse__Is_Billable__c == TRUE)
    {
        newForecast.employee__c = ass.pse__resource__c;
    }
}

/************************************************************************************************************
// Name         deleteForecastPeriods
// Description  Helper method to validate resource requests on an opportunity
*************************************************************************************************************/
private void deleteForecastPeriods (Levvel_Forecast__c oldForecast)
    {
        //Now we delete
        delete forecastPeriodList;
    }
}