from src import db
from . import bp
from .email import send_password_reset_email
from .forms import LoginForm, RegistrationForm, ResetPasswordForm, ResetPasswordRequestForm
from models.user import User
from src.utils.routes_utils import render_custom_template as render_template
from flask import flash, redirect, request, url_for
from flask_login import current_user, login_user, logout_user
from urllib.parse import urlparse

@bp.route('/register', methods=['GET', 'POST'])
def web_register():
    if current_user.is_authenticated:
        return redirect(url_for('main.index'))
    form = RegistrationForm()
    if form.validate_on_submit():
        user = User(email=form.email.data)
        user.set_password(form.password.data)
        db.session.add(user)
        db.session.commit()
        flash('Congratulations, you are now a registered user!')
        return redirect(url_for('auth.web_login'))
    return render_template('auth/register.html', title='Register', form=form)

@bp.route('/login', methods=['GET', 'POST'])
def web_login():
    if current_user.is_authenticated:
        return redirect(url_for('main.index'))
    form = LoginForm()
    if form.validate_on_submit():
        user = User.query.filter_by(email=form.email.data).first()
        if user is None or not user.check_password(form.password.data):
            flash('Invalid email or password')
            return redirect(url_for('auth.web_login'))
        login_user(user, remember=form.remember_me.data)
        next_page = request.args.get('next')
        if not next_page or urlparse(next_page).netloc != '':
            next_page = url_for('main.index')
        return redirect(next_page)
    return render_template('auth/login.html', title='Sign In', form=form)

@bp.route('/logout')
def web_logout():
    logout_user()
    return redirect(url_for('main.index'))

@bp.route('/reset_password_request', methods=['GET', 'POST'])
def reset_password_request():
    if current_user.is_authenticated:
        return redirect(url_for('index'))
    form = ResetPasswordRequestForm()
    if form.validate_on_submit():
        user = User.query.filter_by(email=form.email.data).first()
        if user:
            send_password_reset_email(user)
        flash('Check your email for the instructions to reset your password')
        return redirect(url_for('auth.web_login'))
    return render_template('auth/reset_password_request.html',
                           title='Reset Password', form=form)

@bp.route('/reset_password/<token>', methods=['GET', 'POST'])
def reset_password(token):
    if current_user.is_authenticated:
        return redirect(url_for('index'))
    user = User.verify_reset_password_token(token)
    if not user:
        return redirect(url_for('index'))
    form = ResetPasswordForm()
    if form.validate_on_submit():
        user.set_password(form.password.data)
        db.session.commit()
        flash('Your password has been reset.')
        return redirect(url_for('auth.web_login'))
    return render_template('auth/reset_password.html', form=form)