import helper,database

maxuser = 1000

class CreateAccount:
	def index(self,username = None, password1 = None, password2 = None):
		"""
		checks if there are some parameters from the form. If not, displays creation form. Else processes form data
		"""
		if username != None and password1 != None and password2 != None:
			return self.process_form(username,password1,password2)
		else:
			return self.display_create_form()
		
		
	def display_create_form(self,settings = {}):
		"""
		returns a HTML page containing one name and two password fields.
		"""
		
		try:#do we get a settings dictionary from process_form?
			x = settings["Data.NotCreated"]
		except:#no, this is the first display of the form -> set needed variables.
			settings["Data.NotCreated"] = 1
		return helper.cs_render("templates/createaccount.cs",settings)
	
	
	def process_form(self,username, password1, password2):
		"""
		gets username, password1 and password2.
		If all data is there and correct, create the named user and return a 'success' 
		page. Else fail with detailed error.
		"""
		settings = {}
		settings["Data.NotCreated"] = 1
		
		if (password1 == password2):
			try:
				newuser = database.Users(username=username,password=password1)
				created_user = 1
			except:
				created_user = 0
			if created_user:
				settings["Data.Message"] = 'User %s has been successfully created. Click <a href="/login">here</a> to login.<br>' % username
				settings["Data.NotCreated"] = 0
				return self.display_create_form(settings)
			else:
				settings["Data.Message"] = "User %s already exists. Please retry with another name." % username
				return self.display_create_form(settings)
		else:
			if (password1 == "") or (password2 == "") or (password1 != password2):
				settings["Data.Message"] = "Both given passwords have to be the same and non-empty.<br>"
				return self.display_create_form(settings)
			else:
				return self.display_create_form()
	index.exposed = True