from flask_login import current_user
from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, BooleanField, SubmitField
from wtforms.validators import ValidationError, DataRequired, Email, EqualTo
from app.models.users import Member


# TODO: Put those validators into a specific file
def validate_username(self, username):
    member =  Member.query.filter_by(username=username.data).first()
    if member is not None:
        raise ValidationError('Pseudo indisponible.')

def validate_email(form, email):
    member = Member.query.filter_by(email=email.data).first()
    if member is not None:
        raise ValidationError('Adresse email déjà utilisée.')

def validate_password(form, password):
    if len(password.data) != 0 and len(password.data) < 10:
        raise ValidationError('Mot de passe est trop court (10 caractères minimum)')
        # TODO: add more rules >:]

def verify_authentication(form, old_password):
    if not current_user.check_password(old_password.data):
        raise ValidationError('Mot de passe erroné')


class LoginForm(FlaskForm):
    username = StringField('Pseudonyme :', validators=[DataRequired()])
    password = PasswordField('Mot de passe :', validators=[DataRequired()])
    remember_me = BooleanField('Se souvenir de moi :')
    submit = SubmitField('Connexion')


class RegistrationForm(FlaskForm):
    username = StringField('Pseudonyme :', validators=[DataRequired()], validate_username)
    email = StringField('Adresse Email :', validators=[DataRequired(), Email(), validate_email])
    password = PasswordField('Mot de passe', validators=[DataRequired(), validate_password])
    password2 = PasswordField('Répéter le mot de passe', validators=[DataRequired(), EqualTo('password')])
    guidelines = BooleanField('J’accepte les <a href="#">CGU</a>', validators=[DataRequired()])
    newsletter = BooleanField('Inscription à la newsletter', description='Un mail par trimestre environ, pour être prévenu des concours, évènements et nouveautés.')
    submit = SubmitField('S\'enregistrer')

class UpdateAccountForm(FlaskForm):
    email =  StringField('Adresse Email :', validators=[Email(), validate_email])
    password = PasswordField('Mot de passe :', validators=[validate_password])
    password2 = PasswordField('Répéter le mot de passe', validators=[EqualTo('password')])
    newsletter = BooleanField('Inscription à la newsletter', description='Un mail par trimestre environ, pour être prévenu des concours, évènements et nouveautés.')
    old_password = PasswordField('Ancien mot de passe :', validators=[DataRequired(), verify_authentication])
    submit = SubmitField('Mettre à jour')