import goban,helper,psql,login
import string

DEBUG = 1

def is_my_turn(req,form,gobandict):
	"""
	gets request and util.FiedStorage form.
	check wether or not the current this is the players turn.
	return true or false.
	"""

	#INFO: player1 is black,player2 is white. black starts the game.
	me = form["username"]
	player1 = gobandict["player1"]
	player2 = gobandict["player2"]

	#get turn_number.
	turn_number = gobandict["turn_number"]
	#if turn_number modulo 2 == 0: are we player two?
	#	yes:return True, else return False
	if turn_number % 2 == 0:
		if me == player2:
			return True
		else:
			return False
	#else:are we player1?
	#	yes:return True, else return False
	else:
		if me == player1:
			return True
		else:
			return False

		

	


def main(req,form):
	"""
	display selected goban and manage user input.
	"""
	req.write(str(form.keys())+"<hr>")
	
	try:
		gamename = form["game"]
	except:
		gamename = ""
	if gamename != "":
		
		#read goban table from database
		tmplist = psql.read_table(gamename)
		#make a dictionary out of the list
		gobandict = psql.fetchall_list_to_goban_dict(tmplist)
		#check if user has already clicked onto a field:
		foundx = False
		for item in form.keys():
			if string.find(item,").x") > 0:
				foundx = True
		if foundx:
			if is_my_turn(req,form,gobandict):
				(gobandict,retstring) = goban.process_form(req,form,gobandict)
			else:
				pass
						
		#do stuff
		data = 	helper.header()
			
		
		data += "Turn number: "+str(gobandict["turn_number"])+". "
		
		#check whether its our turn
		#if yes: print 'your move' and display goban and process move
		#if not: print '...s move' and display goban.
		if is_my_turn(req,form,gobandict):
			data += ("Its your turn.<br>")
		else:
			data+= ("This is not your turn. You have to wait for the move of the other player.<br>")
	
	
		#print goban
		data += goban.display_goban(gobandict,req,form)
		data += login.navigation_bar(form["username"],form["sessionid"])
		data += helper.footer()
		req.write(data)
	
	else:
		req.write('Error: You have to select a game to play it!')