import os
from flask_login import current_user
from usermodel import User
from forms.loginform import LoginForm


def LoginUser():
    loginform = LoginForm()
    if loginform.validate_on_submit():
        try:
            user = User.query.filter_by(email=loginform.email.data).first()
            if user is None:
                loginform.password.errors.append("Invalid email or password!")
                return render_template("login.html", loginform=loginform)
            if check_password_hash(user.password, loginform.password.data):
                login_user(user)
                flash("Logged in successfully.", "success")
            else:
                flash("Invalid email or password!", "danger")
                loginform.password.errors.append("Invalid email or password!")
                return loginform
        except Exception as e:
            flash(e, "danger")
    return loginform