from flask_wtf import FlaskForm
from flask_wtf.file import FileField, FileAllowed
from flask_login import current_user
from wtforms import StringField, PasswordField, SubmitField, BooleanField, TextAreaField, IntegerField
from wtforms.validators import DataRequired, Length, Email, EqualTo, ValidationError
from email_validator import validate_email
from NetAPI.models import User

class RegistrationForm(FlaskForm):
    username = StringField('Username',
                           validators=[DataRequired(), Length(min=2, max=20)])
    email = StringField('Email',
                        validators=[DataRequired(), Email()])
    password = PasswordField('Password', validators=[DataRequired()])
    confirm_password = PasswordField('Confirm Password',
                                     validators=[DataRequired(), EqualTo('password')])
    submit = SubmitField('Sign Up')

    def validate_username(self, username):
        user = User.query.filter_by(username=username.data).first()
        if user:
            raise ValidationError('That username has already been registered. Please choose a different username')

    def validate_email(self, email):
        user = User.query.filter_by(email=email.data).first()
        if user:
            raise ValidationError('That email has already been registered. If you forgot your username/passoword please use the reset button')


class LoginForm(FlaskForm):
    email = StringField('Email',
                        validators=[DataRequired(), Email()])
    password = PasswordField('Password', validators=[DataRequired()])
    remember = BooleanField('Remember Me')
    submit = SubmitField('Login')

class UpdateAccountForm(FlaskForm):
    username = StringField('Username',
                           validators=[DataRequired(), Length(min=2, max=20)])
    email = StringField('Email',
                        validators=[DataRequired(), Email()])
    picture = FileField('Update Profile Picture', validators=[FileAllowed(['jpg','png'])])
    submit = SubmitField('Update')
    def validate_username(self, username):
        if username.data != current_user.username:
            user = User.query.filter_by(username=username.data).first()
            if user:
                raise ValidationError('That username has already been registered. Please choose a different username')
    def validate_email(self, email):
        if email.data != current_user.email:
            user = User.query.filter_by(email=email.data).first()
            if user:
                raise ValidationError('That email has already been registered. If you forgot your username/passoword please use the reset button')

class ProtocolForm(FlaskForm):
    name = StringField('Name', validators=[DataRequired()])
    acronym = StringField('Acronym', validators=[DataRequired()])
    port = IntegerField('Port', validators=[DataRequired()])
    layer = StringField('OSI Model Layer', validators=[DataRequired()])
    rfc = IntegerField('RFC', validators=[DataRequired()])
    purpose = TextAreaField('Purpose', validators=[DataRequired()])
    wiki_link = StringField('Wikipedia Link')
    rfc_link = StringField('Link to RFC')
    submit = SubmitField('Add Protocol')
