from flask import render_template, flash, redirect, url_for, request
from flask_login import logout_user, login_required, current_user, login_user 
from .. import db
from . import auth
from ..models import User 
from .form import LoginForm, RegistrationForm
from ..email import send_email 

@auth.route('/login', methods=['GET', 'POST'])
def login():
    form = LoginForm()
    if form.validate_on_submit():
        user = User.query.filter_by(email=form.email.data).first()
        if user is not None and user.verify_password(form.password.data):
            login_user(user, form.remember_me.data)
            return redirect(request.args.get('next') or url_for('main.index'))
            flash("You've entered invalid username or password!")
    return render_template('auth/login.html', current_user=current_user, login_form=form)


@auth.route('/logout')
@login_required
def logout():
	logout_user()
	flash('You have logged out.')
	return redirect(url_for('main.index'))




@auth.route('/register', methods=['GET', 'POST'])
def register():
    form = RegistrationForm()
    if form.validate_on_submit():
        user = User(email=form.email.data,
                    username=form.username.data,
                    password=form.password.data)
        db.session.add(user)
        db.session.commit()
        token = user.generate_confirmation_token()
        send_email(user.email, 'Confirm Your Account', 'auth/email/confirm', user=user, token=token)
        flash('A confirmation email has been sent to this email. Please confirm your account')
        return redirect(url_for('auth.login'))
    return render_template('auth/register.html', form=form)

@auth.route('/confirm/<token>')
@login_required
def confirm(token):
	if current_user.confirmed:
		return redirect(url_for('main.index'))
	if current_user.confirm(token):
		flash('You have confirmed your account. Thanks!')
	else:
		flash('The confirmation link is invalid or has expired.')
	return redirect(url_for('main.index'))

@auth.before_app_request
def before_request():
    if current_user.is_authenticated:
        current_user.ping()
        if not current_user.confirmed and request.endpoint[:5] != 'auth.':
            return redirect(url_for('auth.unconfirmed'))


@auth.route('/unconfirmed')
def unconfirmed():
	if current_user.is_anonymous or current_user.confirmed:
		return redirect('main.index')
	return render_template('auth/unconfirmed.html')

@auth.route('/confirm')
@login_required
def resend_confirmation():
	token = current_user.generate_confirmation_token()
	send_email(current_user.email, 'Confirm Your Account',
               'auth/email/confirm', user=current_user, token=token)
	flash('A new confirmation email has been sent to you by email.')
	return redirect(url_for('main.index'))