import datetime

from flask_wtf import FlaskForm
from wtforms import PasswordField, BooleanField, StringField, TextAreaField, SubmitField, TimeField
from wtforms.fields.html5 import DateField
from wtforms.validators import ValidationError, DataRequired, 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(), Email()])
    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('Please use a different email address.')


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

    def __init__(self, original_username, *args, **kwargs):
        super(EditProfileForm, self).__init__(*args, **kwargs)
        self.original_username = original_username

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


class CoachIdentifierForm(FlaskForm):
    coach_check = StringField('Enter password to be coach', validators=[
        DataRequired(), Length(min=1, max=140)])
    submit = SubmitField('Submit')


class PayForm(FlaskForm):
    DateOfStart = DateField(label='Enter date of start', format='%d/%m/%Y', validators = [DataRequired('please select date')])
    submit = SubmitField('Pay')

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        if not self.DateOfStart.data:
            self.DateOfStart.data = datetime.date.today()
