import functools

from flask import Blueprint
from flask import g
from flask import redirect
from flask import url_for
from flask import session

from capsulflask.db import get_model

bp = Blueprint("auth", __name__, url_prefix="/auth")

def account_required(view):
    """View decorator that redirects anonymous users to the login page."""

    @functools.wraps(view)
    def wrapped_view(**kwargs):
        if session.get("account") is None:
            return redirect(url_for("auth.login"))

        return view(**kwargs)

    return wrapped_view


@bp.route("/register", methods=("GET", "POST"))
def register():

    if request.method == "POST":
        email = request.form["email"]
        model = get_model()
        error = None

        if not email:
            error = "Email is required."
        elif (
            model.
        ):
            error = f"User {username} is already registered."

        if error is None:
            # the name is available, store it in the database and go to
            # the login page
            db.execute(
                "INSERT INTO user (username, password) VALUES (?, ?)",
                (username, generate_password_hash(password)),
            )
            db.commit()
            return redirect(url_for("auth.login"))

        flash(error)

    return render_template("auth/register.html")