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

from app import app
from app.forms import LoginForm
from app.models import User


@app.route("/")
@app.route("/index")
@login_required
def index():
    user = {"username": "Miguel"}
    return render_template("index.html", title="Home", user=user)


@app.route("/login", methods=["GET", "POST"])
def login():
    if current_user.is_authenticated:
        return redirect(url_for("index"))
    form = LoginForm()
    if form.validate_on_submit():
        user = User.query.filter_by(username=form.username.data).first()
        if user is None or not user.check_password(form.password.data):
            flash("Invalid username or password")
            return redirect(url_for("login"))
        login_user(user)
        return redirect(url_for("index"))
    return render_template("login.html", title="Sign In", form=form)


@app.route("/logout")
def logout():
    logout_user()
    return redirect(url_for("index"))