from flask_wtf import FlaskForm
from wtforms import StringField, \
    PasswordField, BooleanField, \
    SubmitField, ValidationError
from wtforms.validators import Required, Length, Email, Regexp, EqualTo

from ..models import User


class LoginForm(FlaskForm):
    email = StringField(
        'Email',
        validators=[
            Required(), Length(1, 254), Email()])
    password = PasswordField('Password', validators=[Required()])
    remember_me = BooleanField('Keep me logged in')
    submit = SubmitField('Log In')


class RegistrationForm(FlaskForm):
    email = StringField(
        'Email',
        validators=[Required(), Length(1, 254), Email()])
    password = PasswordField('Password', validators=[
        Required()])
    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 in use.')


class ChangePasswordForm(FlaskForm):
    old_password = PasswordField('Old password', validators=[Required()])
    password = PasswordField('New password', validators=[
        Required(), EqualTo('password2', message='Passwords must match')])
    password2 = PasswordField('Confirm new password', validators=[Required()])
    submit = SubmitField('Update Password')


class PasswordResetRequestForm(FlaskForm):
    email = StringField('Email', validators=[Required(), Length(1, 254),
                                             Email()])
    submit = SubmitField('Reset Password')


class PasswordResetForm(FlaskForm):
    email = StringField('Email', validators=[Required(), Length(1, 254),
                                             Email()])
    password = PasswordField('New Password', validators=[
        Required(), EqualTo('password2', message='Passwords must match')])
    password2 = PasswordField('Confirm password', validators=[Required()])
    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(FlaskForm):
    email = StringField('New Email', validators=[Required(), Length(1, 254),
                                                 Email()])
    password = PasswordField('Password', validators=[Required()])
    submit = SubmitField('Update Email Address')

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