from flask_wtf import FlaskForm
from wtforms import StringField, PasswordField, BooleanField,TextAreaField, SubmitField
from wtforms.validators import DataRequired,ValidationError, Email, EqualTo,Length
from app.models import User


class LoginForm(FlaskForm):
    username = StringField('Username', validators=[DataRequired()])
    password = PasswordField('Password', validators=[DataRequired()])
    remember_me = BooleanField('Remember Me')
    submit = SubmitField('Sign In')

class RegistrationForm(FlaskForm):
    username=StringField('Username',validators=[DataRequired()])
    email=StringField('Email',validators=[DataRequired()])
    password=PasswordField('Password',validators=[DataRequired()])
    password2=PasswordField('Repeat Password',validators=[DataRequired(),EqualTo('password')])
    submit =SubmitField('Register')

    def validate_username(self,username):
        user =User.query.filter_by(username=username.data).first()
        if user is not None:
            raise ValidationError('please use a different username')

    def validate_email(self,email):
        user =User.query.filter_by(email=email.data).first()
        if user is not None:
            raise ValidationError('email already i   use')

class EditProfileForm(FlaskForm):
    username = StringField('Username', validators=[DataRequired()])
    about_me = TextAreaField('About me', validators=[Length(min=0, max=140)])
    submit = SubmitField('Submit')