<cfcomponent
	displayname="SecondTuesday"
	implements="DateIterator"
	extends="BaseDateIterator"
	hint="I iterate over every second Tuesday of the month between two dates.">


	<cffunction
		name="GetSecondTuesday"
		access="private"
		returntype="date"
		output="false"
		hint="I get the second tuesday of the month (for the given date).">

		<!--- Define arguments. --->
		<cfargument
			name="Date"
			type="numeric"
			required="true"
			hint="I am the date in the month for which we are getting the second Tuesday."
			/>

		<!--- Define the local scope. --->
		<cfset var LOCAL = {} />

		<!--- Get the first day in this month. --->
		<cfset LOCAL.Month = CreateDate(
			Year( ARGUMENTS.Date ),
			Month( ARGUMENTS.Date ),
			1
			) />

		<!---
			Get the second tuesday based on the first date of
			the month.
		--->
		<cfif (DayOfWeek( LOCAL.Month ) GT 3)>

			<!--- Get second tuesday. --->
			<cfreturn (LOCAL.Month + (8 - DayOfWeek( LOCAL.Month )) + 9) />

		<cfelse>

			<!--- Return second tuesday. --->
			<cfreturn (LOCAL.Month + (3 - DayOfWeek( LOCAL.Month )) + 7) />

		</cfif>
	</cffunction>


	<cffunction
		name="SetNextDate"
		access="private"
		returntype="void"
		output="false"
		hint="I determine what the next valid date of iteration is.">

		<!--- Define the local scope. --->
		<cfset var LOCAL = {} />

		<!---
			Check to see if we have a next date index yet. If
			not, then this is our intialization. If so, then we
			are already in the midst of the iteration.
		--->
		<cfif NOT IsNumericDate( VARIABLES.NextDateIndex )>

			<!--- We are initializing our next date. --->

			<!---
				Get the second tuesday of the starting month.
				This may not be the Tuesday that we need, but
				it gives us a basis for iteration.
			--->
			<cfset LOCAL.Tuesday = VARIABLES.GetSecondTuesday(
				VARIABLES.DateIndex
				) />

			<!---
				Check to see if this first tuesday is before our
				start date. If so, then we need to start in the
				next month.
			--->
			<cfif (VARIABLES.DateIndex LTE LOCAL.Tuesday)>

				<!--- Use this tuesday. --->
				<cfset VARIABLES.NextDateIndex = LOCAL.Tuesday />

			<cfelse>

				<!--- Use the tuesday of the next month. --->
				<cfset VARIABLES.NextDateIndex = VARIABLES.GetSecondTuesday(
					DateAdd( "m", 1, LOCAL.Tuesday )
					) />

			</cfif>

		<cfelse>

			<!---
				We just iterated. Get the second tuesday of
				the next month.
			--->
			<cfset VARIABLES.NextDateIndex = VARIABLES.GetSecondTuesday(
				DateAdd( "m", 1, VARIABLES.NextDateIndex )
				) />

		</cfif>

		<!--- Return out. --->
		<cfreturn />
	</cffunction>

</cfcomponent>