from flask import Blueprint, render_template, flash, request, redirect, url_for
from flask_login import login_user, logout_user, login_required

from flaskr.extensions import cache
from flaskr.forms import LoginForm
from flaskr.models import User

main = Blueprint('main', __name__)


@main.route('/')
@cache.cached(timeout=1000)
def home():
    return render_template('index.html')


@main.route("/login", methods=["GET", "POST"])
def login():
    form = LoginForm()

    if form.validate_on_submit():
        user = User.query.filter_by(username=form.username.data).one()
        login_user(user)

        flash("Logged in successfully.", "success")
        return redirect(request.args.get("next") or url_for(".home"))

    return render_template("login.html", form=form)


@main.route("/logout")
def logout():
    logout_user()
    flash("You have been logged out.", "success")

    return redirect(url_for(".home"))


@main.route("/restricted")
@login_required
def restricted():
    return "You can only see this if you are logged in!", 200