import * from dw::Runtime

var directorDateIntervalSetFlag = p('default.director.date.interval.set.flag') as Boolean
var defaultDateIntervalSetFlag = p('default.date.interval.set.flag') as Boolean
var defaultDirectorValue =  p('default.director.value')
var processError = p('process.error')
var invalidMessage = p('invalid.process.message')

fun getLastUpdatedOnDate(errorTime, lastFlowStage, sourceSystem, lastSuccessfulTime, objectType) =
  if (lastFlowStage == processError and !isEmpty(lastSuccessfulTime) and errorTime != "")
    if ((!directorDateIntervalSetFlag and objectType == defaultDirectorValue) or (!defaultDateIntervalSetFlag))
        lastSuccessfulTime as String { format: dateTimeFormat }
    else
        fail(invalidMessage)
  else if (objectType == p('default.director.value'))    // default incase of Education Director
		getPreviousDate(defaultDirectorInterval) as String { format: dateTimeFormat }
  else // default based on Source System
    getActualStartDate(sourceSystem)