from app import app
from app.forms import LoginForm
from app.models import User
from flask import flash, redirect, render_template, url_for, request
from flask_login import current_user, login_user, logout_user, login_required
from werkzeug.urls import url_parse


@app.route("/")
@app.route("/index")
def index():
    return render_template("index.html", title="Home Page")


@app.route("/login", methods=["GET", "POST"])
def login():
    if current_user.is_authenticated:
        return redirect(url_for("admin"))
    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, remember=form.remember_me.data)
        next_page = request.args.get("next")
        if not next_page or url_parse(next_page).netloc != "":
            next_page = url_for("admin")
        return redirect(next_page)
    return render_template("login.html", title="Sign In", form=form)


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


@app.route("/admin")
@login_required
def admin():
    return render_template("admin.html", title="Admin Page")