from flask_wtf import FlaskForm
from flask_wtf.file import FileField, FileAllowed
from wtforms import StringField, PasswordField, SubmitField, BooleanField
from wtforms.validators import DataRequired, Length, Email, EqualTo, ValidationError
from flask_login import current_user
from minibase.database.models import User


class registrationForm(FlaskForm):  # Defines the form class to be used for the user registretion
    # Decalarion of the fields for the form and it's propereties
    username = StringField('User Name', validators=[DataRequired(), Length(min=3, max=20)])
    email = StringField('Email', validators=[DataRequired(), Email()])
    password = PasswordField('Password', validators=[DataRequired()])
    password_confirm = PasswordField('Confirm Password', validators=[DataRequired(), EqualTo('password')])
    submit = SubmitField('Sing Up')

    # Queries to be made in order to validate the form : If username exists
    def validate_username(self, username):
        user = User.query.filter_by(username=username.data).first()  # Database Querry
        if user:
            raise ValidationError('That username is taken please choose another one')

    # Queries to be made in order to validate the form : If Email exists
    def validate_email(self, email):
        email = User.query.filter_by(email=email.data).first()  # Database Querry
        if email:
            raise ValidationError('That email is taken do you have an acocunt ?')


class loginForm(FlaskForm):  # Defines the form class to be used for the user login
    email = StringField('Email', validators=[DataRequired(), Email()])
    password = PasswordField('Password', validators=[DataRequired()])
    remember = BooleanField('Remember Me')
    submit = SubmitField('Log In')


class updateAccountForm(FlaskForm):  # Defines the form class to be used for the user update
    username = StringField('User Name', validators=[DataRequired(), Length(min=3, max=20)])
    email = StringField('Email', validators=[DataRequired(), Email()])
    picture = FileField('Update Profile Picture', validators=[FileAllowed(['jpg', 'png'])])
    submit = SubmitField('Update')

    # Queries to be made in order to validate the form : If username exists
    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 is taken please choose another one')

    # Queries to be made in order to validate the form : If Email exists
    def validate_email(self, email):
        if email.data != current_user.email:
            email = User.query.filter_by(email=email.data).first()
            if email:
                raise ValidationError('That email is taken do you have an acocunt ?')


class requestResetForm(FlaskForm):  # Defines the form class to be used for the reset form
    email = StringField('Email', validators=[DataRequired(), Email()])
    submit = SubmitField('Request Password Reset')

    # Queries to be made in order to validate the form : If Email exists
    def validate_email(self, email):
        email = User.query.filter_by(email=email.data).first()
        if email is None:
            raise ValidationError('There is no Account with this email your must register first.')


class resetPasswordForm(FlaskForm):  # Defines the form class to be used for password reset form
    password = PasswordField('Password', validators=[DataRequired()])
    password_confirm = PasswordField('Confirm Password', validators=[DataRequired(), EqualTo('password')])
    submit = SubmitField('Reset Password')