import web
from views.forms import register_form
from views.utils import get_nav_bar, csrf_protected, password_weakness
import models.register
import models.user
import bcrypt
import re

# Get html templates
render = web.template.render('templates/')


class Register:

    def GET(self):
        """
        Get the registration form

            :return: A page with the registration form
        """
        session = web.ctx.session
        nav = get_nav_bar(session)
        return render.register(nav, register_form, "")

    @csrf_protected
    def POST(self):
        """
        Handle input data and register new user in database

            :return: Main page
        """
        session = web.ctx.session
        nav = get_nav_bar(session)
        data = web.input()

        register = register_form()
        if not register.validates():
            return render.register(nav, register, "All fields must be valid.")

        # Check if user exists
        if models.user.get_user_id_by_name(data.username):
            return render.register(nav, register, "Invalid user, already exists.")

        # Check password security
        weakness = password_weakness(data.password, data.username)
        if weakness is not None:
            return render.register(nav, register, weakness)

        password_hash = bcrypt.hashpw(data.password.encode('UTF-8'), bcrypt.gensalt())

        models.register.set_user(data.username, password_hash, data.full_name, data.company,
                                 data.email, data.street_address, data.city, data.state,
                                 data.postal_code, data.country)

        return render.register(nav, register_form, "User registered!")