<reponame>fengyc/flasky
from flask.ext.wtf import Form
from wtforms import StringField, PasswordField, BooleanField, SubmitField
from wtforms.validators import DataRequired, Length, Email, Regexp, EqualTo
from wtforms.validators import ValidationError
from ..models import User


class LoginForm(Form):
    email = StringField('Email', validators=[DataRequired(), Length(1, 64), Email()])
    password = PasswordField('Password', validators=[DataRequired()])
    remember_me = BooleanField('Keep me logged in')
    submit = SubmitField('Log in')


class RegistrationForm(Form):
    email = StringField('Email', validators=[DataRequired(), Length(1, 64), Email()])
    username = StringField('Username', validators=[DataRequired(), Length(1, 64), Regexp('^[A-Za-z][A-Za-z0-9_.]*$', 0, 'Username must have only letters, numbers, dots and underscores, and begin with letters') ])
    password = PasswordField('Password', validators=[DataRequired(), EqualTo('password2', message='Password must match')])
    password2 = PasswordField('<PASSWORD>', validators=[DataRequired()])
    submit = SubmitField('Register')

    def validate_email(self, field):
        if User.query.filter_by(email=field.data).first():
            raise ValidationError('Email already registered.')

    def validate_username(self, field):
        if User.query.filter_by(username=field.data).first():
            raise ValidationError('Username already registered.')


class ChangePasswordForm(Form):
    password = PasswordField('<PASSWORD>', validators=[DataRequired()])
    new_password = PasswordField('<PASSWORD>', validators=[DataRequired(), EqualTo('<PASSWORD>', message='Password must match')])
    new_password2 = PasswordField('Confirm password', validators=[DataRequired()])
    submit = SubmitField('Update')


class PasswordResetRequestForm(Form):
    email = StringField('Email', validators=[DataRequired(), Length(1, 64), Email()])
    submit = SubmitField('Reset Password')


class PasswordResetForm(Form):
    email = StringField('Email', validators=[DataRequired(), Length(1, 64), Email()])
    password = PasswordField('<PASSWORD>', validators=[DataRequired(), EqualTo('<PASSWORD>', message='Password must match')])
    password2 = PasswordField('Confirm Password', validators=[DataRequired()])
    submit = SubmitField('Reset Password')

    def validate_email(self, field):
        if User.query.filter_by(email=field.data).first() is None:
            raise ValidationError('Unknown email address.')


class ChangeEmailForm(Form):
    email = StringField('New Email', validators=[DataRequired(), Length(1, 64), Email()])
    password = PasswordField('Password', validators=[DataRequired()])
    submit = SubmitField('Change Email')

    def validate_email(self, field):
        if User.query.filter_by(email=field.data).first():
            raise ValidationError('Email already registered.')