from flask import render_template, url_for, flash, redirect, request, Blueprint
from flask_login import login_user, current_user, logout_user, login_required
from minibase.app import db, bcrypt
import minibase.theme as theme
from minibase.blueprints.user.models import Users
from minibase.blueprints.user.forms import registrationForm, loginForm, updateAccountForm, resetPasswordForm, requestResetForm
from minibase.blueprints.user.utils import save_picture, send_reset_email

# Declaring a blueprint
user = Blueprint('user', __name__, template_folder='templates')


@user.route("/register", methods=['GET', 'POST'])
def register():
    if current_user.is_authenticated:
        return redirect(url_for('main.index'))

    form = registrationForm()
    if form.validate_on_submit():
        hashed_pw = bcrypt.generate_password_hash(form.password.data).decode('utf-8')
        user = Users(username=form.username.data, email_account=form.email.data, email_comm=form.email.data, password=hashed_pw)
        db.session.add(user)
        db.session.commit()
        flash(f'{"Your account has been created you can now log in!"}', 'success')
        return redirect(url_for('user.login'))

    return render_template('user/register.html',
                            theme=theme,
                            form=form)


@user.route("/login", methods=['GET', 'POST'])
def login():
    if current_user.is_authenticated:  # Is the user alredy authenticated?
        return redirect(url_for('main.index'))  # Then redirect home

    form = loginForm()
    if form.validate_on_submit():
        user = Users.query.filter_by(email_account=form.email.data).first()
        if user and bcrypt.check_password_hash(user.password, form.password.data):
            login_user(user, remember=form.remember.data)
            next_page = request.args.get('next')
            return redirect(next_page) if next_page else redirect(url_for('main.index'))
        else:
            flash('Login unsuccessful. Please chek your Email and Password!', 'danger')
    return render_template('user/login.html',
                            theme=theme,
                            form=form)


@user.route("/logout")
def logout():
    logout_user()
    return redirect(url_for('main.index'))


@user.route("/account", methods=['GET', 'POST'])
@login_required
def account():
    form = updateAccountForm()
    if form.validate_on_submit():
        if form.picture.data:
            picture_file = save_picture(form.picture.data)
            current_user.image_file = picture_file
        current_user.username = form.username.data
        current_user.email_account = form.email_account.data
        current_user.email_comm = form.email_comm.data
        db.session.commit()
        flash('Your account has been updated!', 'success')
        return redirect(url_for('user.account'))
    elif request.method == 'GET':
        form.username.data = current_user.username
        form.email_account.data = current_user.email_account
        form.email_comm.data = current_user.email_comm
    image_file = url_for('static', filename='pics/' + current_user.image_file)
    return render_template('user/account.html',
                            theme=theme,
                            image_file=image_file,
                            form=form)



@user.route("/reset_password", methods=['GET', 'POST'])
def reset_request():
    if current_user.is_authenticated:
        return redirect(url_for('main.index'))
    form = requestResetForm()
    if form.validate_on_submit():
        user = Users.query.filter_by(email_account=form.email.data).first()
        send_reset_email(user)
        flash('An Email has been sent with instruction to reset your password', 'warning')
    return render_template('user/reset_request.html',
                            theme=theme,
                            form=form)


@user.route("/reset_password/<token>", methods=['GET', 'POST'])
def reset_token(token):
    if current_user.is_authenticated:
        return redirect(url_for('main.index'))
    user = Users.verify_reset_token(token)
    if user is None:
        flash('That is an invalid or expired token', 'warning')
        return redirect(url_for('user.reset_request'))
    form = resetPasswordForm()
    if form.validate_on_submit():
        hashed_pw = bcrypt.generate_password_hash(form.password.data).decode('utf-8')
        user.password = hashed_pw
        db.session.commit()
        flash(f'{"Your password has benn updated"}', 'success')
        return redirect(url_for('user.login'))
    return render_template('user/reset_token.html',
                            theme=theme,
                            form=form)