import sort_date

correct_locs = [ ]
temp = None
moved_item = None
moved_item_loc = None
exp_date = [ ]
shelf_new = [ ]
repeats = 0
moves_return = None
pickup = []
replace = []

def throw_check():
	for i in range(0,len(moves_return),2):
		loc = i + 2;
		if moves_return[i + 1] != 0:
			break

	if 0 in moves_return[loc:]:
		return True
	return False
def seperate():
	global pickup
	global replace
	for i in range(1,len(moves_return),2):
		pickup.append(moves_return[i-1])
		replace.append(moves_return[i])




def backArray( myArray ):
	global shelf_back
	shelf_back = [ ]
	for i in range( len( myArray ) ):
		shelf_back.append( myArray[ i ] )


def eqArray( myArray ):
	global exp_date
	exp_date = [ ]
	for i in range( len( myArray ) ):
		exp_date.append( myArray[ i ] )


def place():
	global exp_date
	global shelf_new
	global repeats
	global shelf_back
	global moves_return
	repeats += 1
	backArray( exp_date )
	moved_item = None
	moved_item_loc = None

	if (exp_date[ len( exp_date ) - 1 ] != None):
		empty_loc = exp_date.index( None )
		moved_item_loc = exp_date.index( shelf_new[ empty_loc ] )
		reps = 0
		while True:
			reps += 1
			if (moved_item_loc in correct_locs):
				exp_date.pop( moved_item_loc )
				moved_item_loc = exp_date.index( shelf_new[ empty_loc ] ) + reps
				continue
			break
		eqArray( shelf_back )
		moved_item = exp_date[ moved_item_loc ]
		if (exp_date[ moved_item_loc ] != shelf_new[ moved_item_loc ]):
			exp_date[ moved_item_loc ] = None
			exp_date[ empty_loc ] = moved_item
			correct_locs.append( empty_loc )

			print "        Moved item {0} to location {1}. Location {2} is now empty!".format( moved_item,
			                                                                                   empty_loc + 1,
			                                                                                   moved_item_loc + 1 )
			print "============================================================================="
			moves_return.append( str( moved_item_loc + 1 ) )
			moves_return.append( str( empty_loc + 1 ) )
		else:
			print "      Leaving item {0} in location {1}. Location {2} is still empty!".format( moved_item,
			                                                                                     moved_item_loc + 1,
			                                                                                     empty_loc + 1 )
			print "============================================================================"
			correct_locs.append( moved_item_loc )

		place()
	else:
		return


def faster():
	global moves_return
	for i in range( 1, len( moves_return ) - 1, 2 ):
		if (moves_return[ i ] == moves_return[ i + 1 ]):
			moves_return.pop( i )
			moves_return.pop( i )
			faster()
		else:
			continue

		return moves_return


def generate( dates, date_cur ):
	global exp_date
	global shelf_new
	global repeats
	global moves_return
	shelf_new = [ ]
	moves_return = [ ]
	exp_date = sort_date.calcDate( dates, date_cur )
	shelf_back = exp_date[ : ]
	try:
		expired = exp_date.count( -1 )
		for i in range( expired ):
			shelf_back.pop( shelf_back.index( -1 ) )

		shelf_new = sorted( shelf_back )
		for i in range( expired ):
			shelf_new.append( -1 )
	except ValueError:
		print('')
	exp_date.append( None )
	shelf_new.append( None )
	repeats = 0

	print "\n\n\n//////////////////////////////////////////////////////////////////////////////"
	print("                  {}               ".format( exp_date ))
	print("                  {}               ".format( shelf_new ))
	print "/////////////////////////////////////////////////////////////////////////////\n\n\n"

	while True:
		if (repeats < len( exp_date )):
			for i in range( len( exp_date ) ):
				if (exp_date[ len( exp_date ) - 1 ] == None):
					if (exp_date[ i ] == shelf_new[ i ]):
						continue
					else:
						exp_date[ len( exp_date ) - 1 ] = exp_date[ i ]
						print '\n!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!'
						print '     TEMP IS EMPTY, MOVING {0} FROM LOCATION {1} TO THE TEMP'.format( exp_date[ i ],
						                                                                             i + 1 )
						print '!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n'
						print "============================================================================"
						exp_date[ i ] = None
						moves_return.append( str( i + 1 ) )
						moves_return.append( str( len( exp_date ) ) )
		else:
			break
		place()

	try:
		print('***********************************************************************************')
		print('          The last {} items have expired, throwing them away.'.format(
			len( exp_date ) - shelf_new.index( -1 ) - 1 ))
		print('***********************************************************************************')
		if (len( shelf_new ) != 3):
			for i in range( len( shelf_new ) - 1, len( shelf_new ) - shelf_new.index( -1 ), -1 ):
				print "aaa"
				moves_return.append( str( i ) )
				moves_return.append( "0" )
		else:
			for i in range( len( shelf_new ), len( shelf_new ) - shelf_new.index( -1 ), -1 ):
				print "aaa"
				moves_return.append( str( i - 1 ) )
				moves_return.append( "0" )

	except ValueError:
		print("                              No items have expired")
		print('***********************************************************************************')
	faster()

	return moves_return

print generate( [ "11.07.2019", "12.09.2019" ], "10.08.2019" )

seperate()
print(pickup)
print replace