#!/usr/bin/env python
# -*- coding: utf-8 -*-
# WWW-sovellukset TJTA270 Vt4 Taso 5
# http://appro.mit.jyu.fi/sovellukset/vt/vt4/
# (C) Esa-Matti Suuronen

'''
Created on Feb 8, 2010

@author: epeli
'''

import cherrypy

from sokkeli.kela import Widget, Form, WidgetGroup, Invalid, constraint

from userdb import UserDB


class NoPipe(Widget):
    @constraint
    def not_pipe(self):
        if "|" in self.get_value():
            raise Invalid("Input contains an invalid character | ")
        
class Text(NoPipe):
    _type = "text" 

class Password(NoPipe):
    _type="password"    


class Username(NoPipe):
    _type = "text" 
    
    @constraint
    def unique_usernames(self):
        userdb = UserDB()
        if userdb.has_user(self.get_value()):
            raise Invalid("Username already exists!")    

class LoginForm(WidgetGroup):
    def _init_form(self, form):
        WidgetGroup._init_form(self, form)
        self.username = self.add(Text("username", 
                                      label_text="Username", 
                                      required=True))
        self.password = self.add(Password("password", 
                                          label_text="Password", 
                                          required=True))
        


    @constraint
    def auth(self):
        userdb = UserDB()
        if not userdb.has_user(self.username.get_value()):
            raise Invalid("Unknown user!")
        
        if not userdb.auth(self.username.get_value(), 
                           self.password.get_value()):
            raise Invalid("Invalid password!")

    
class Passwords(WidgetGroup):
    def _init_form(self, form):
        WidgetGroup._init_form(self, form)
        self.pass1 = self.add(Password("password1", 
                                          label_text="Password", 
                                          required=True,
                                          min_length=5))
        
        self.pass2 = self.add(Password("password2", 
                                label_text="Again", 
                                required=True,
                                min_length=5))




    @constraint
    def passwords_match(self):
        
        if self.pass1.get_value() != self.pass2.get_value():
            raise Invalid("Passwords does not match!")