# coding: utf-8

from sshpubkeys import SSHKey
from flask import render_template, session, redirect, url_for, request
from flask import g
from flask import Blueprint
from app import models
from app.cloud.controllers.common import special_match
from app.cloud.controllers.common import ControllerMessagesEmail
from app.cloud.controllers.users import ControllerUsers
from app.cloud.controllers.users import ControllerAPI
from app.cloud.controllers.users import ControllerSSHKey
from app.cloud.controllers.users import ControllerUsersDetails
from app.cloud.controllers.users import ControllerUsersRecoveryCodes
from app.cloud.controllers.billing import ControllerBilling

viewAccount = Blueprint('account', __name__, url_prefix='/account')


@viewAccount.route('/', methods=['GET', 'POST'])
def index():
    # check session
    if not ControllerUsers().check_session():
        return redirect(url_for("account.logout"))
    # auth user
    if not ControllerUsers().auth(session['email'], session['password']):
        return redirect(url_for("account.logout"))

    cud = ControllerUsersDetails(session['user_id'])
    user = cud.details_get()

    # проверяем, есть ли запись в таблице usersdetails, чтобы небыло ошибок
    if not cud.details_exists():
        # если нет, то делаем запись в таблицу, чтобы небыло ошибок
        cud.details_create()

    # извлекаем из базы детали пользователя
    user_details = cud.details_get()

    return render_template(
        'default/id/index.html',
        user=user,
        user_details=user_details
    )


@viewAccount.route('/edit', methods=['GET', 'POST'])
def edit():
    # check session
    if not ControllerUsers().check_session():
        return redirect(url_for("account.logout"))
    # auth user
    if not ControllerUsers().auth(session['email'], session['password']):
        return redirect(url_for("account.logout"))

    cud = ControllerUsersDetails(session['user_id'])
    user = cud.details_get()

    if not cud.details_exists():
        cud.details_create()

    if request.method == "POST":
        if not request.form['zipcode'].isdigit():
            g.errors['items'].append(u'Индекс должен содержать только цифры')
            g.errors['total'] += 1

        if g.errors['total'] == 0:
            cud.details_update(
                fname=request.form['fname'],
                lname=request.form['lname'],
                address=request.form['address'],
                city=request.form['city'],
                country=request.form['country'],
                state=request.form['state'],
                zipcode=request.form['zipcode']
            )
            return redirect(url_for('account.edit'))
    # get user details
    user_details = cud.details_get()

    return render_template('default/id/edit.html', user=user, user_details=user_details)


@viewAccount.route('/settings', methods=['GET', 'POST'])
def settings():
    # check session
    if not ControllerUsers().check_session():
        return redirect(url_for("account.logout"))
    # auth user
    if not ControllerUsers().auth(session['email'], session['password']):
        return redirect(url_for("account.logout"))
    # get user data
    user = ControllerUsers(session['user_id']).get()

    return render_template('default/id/index.html', user_details=user)


@viewAccount.route('/billing', methods=['GET', 'POST'])
def billing():
    # check session
    if not ControllerUsers().check_session():
        return redirect(url_for("account.logout"))
    # auth user
    if not ControllerUsers().auth(session['email'], session['password']):
        return redirect(url_for("account.logout"))

    user_id = session['user_id']

    if models.UsersBalance.select().where(models.UsersBalance.user == user_id).count() == 0:
        models.UsersBalance.create(user=user_id, balance=10)
    user_balance = models.UsersBalance.select().where(models.UsersBalance.user == user_id).limit(1)[0].balance

    user_details = models.Users.select().where(models.Users.id == session['user_id']).limit(1)[0]

    # выгрузка истории платежей
    history = dict()
    history['total'] = models.UsersBalanceTransactions.select().\
        where(models.UsersBalanceTransactions.user == user_id).count()
    history['items'] = models.UsersBalanceTransactions.select().\
        where(models.UsersBalanceTransactions.user == user_id)

    return render_template(
        'default/id/balance.html',
        user_details=user_details,
        user_balance=user_balance,
        history=history
    )


@viewAccount.route('/registration', methods=['GET', 'POST'])
def registration():
    # check session
    if ControllerUsers().check_session():
        return redirect(url_for("containers.index"))

    if request.method == 'POST':
        check_password = False
        if request.form['password'] == request.form['password2']:
            check_password = True

        if not special_match(request.form['email'], r"^[A-Za-z0-9\.\+_-]+@[A-Za-z0-9\._-]+\.[a-zA-Z]*$")\
                or len(request.form['password']) < 5\
                or not check_password:
            g.errors['items'].append('Invalid registration data.')
            g.errors['total'] += 1

        if g.errors['total'] == 0:
            # count user with email and password
            if models.Users.select().where(models.Users.email == request.form['email']).count():
                g.errors['items'].append('Invalid registration. User already exists.')
                g.errors['total'] += 1
            else:
                if ControllerUsers().registration(request.form['email'], request.form['password']):
                    user_id = ControllerUsers().get_id_by_email(request.form['email'])

                    ControllerUsersDetails(user_id).details_create()
                    ControllerBilling().create(user_id, g.settings['bonus'])
                    # ControllerU
                    # send mail message with recovery code
                    message = u"""
                    Е-почта: %s
                    Пароль: %s
                    """ % (request.form['email'], request.form['password'])
                    subject = u'GoCloud.ru: Успешная регистрация'
                    lead = u"""
                    Поздравляем с успешной зарегистрацией.
                    """
                    callout = u"""
                    Для входа в личный кабинет воспользуйтесь
                    <a href="https://gocloud.ru/account/login">страницей авторизации</a>.
                    """

                    email = ControllerMessagesEmail()
                    email.send(title=subject, to=request.form['email'], lead=lead, message=message, callout=callout)

                    # redirect to login page
                    return redirect(url_for('account.login'))
                else:
                    g.errors['items'].append('Invalid registration. Try again.')
                    g.errors['total'] += 1
    return render_template('default/id/registration.html')


@viewAccount.route('/login', methods=['GET', 'POST'])
def login():
    if request.method == 'POST':
        # validation entered data
        if not special_match(request.form['email'], r"^[A-Za-z0-9\.\+_-]+@[A-Za-z0-9\._-]+\.[a-zA-Z]*$")\
                or len(request.form['password']) < 5:
            g.errors['items'].append('Invalid registration data.')
            g.errors['total'] += 1

        if g.errors['total'] == 0:
            # try auth only active users (with status code 1)
            if ControllerUsers().auth(request.form['email'], request.form['password'], 1):
                # get user_id
                user_id = ControllerUsers().get_id_by_email(request.form['email'])
                # save user data to session
                session['user_id'] = user_id
                session['email'] = request.form['email']
                session['password'] = request.form['password']
                # redirect to rules list
                return redirect(url_for('containers.index'))
            else:
                g.errors['items'].append('Invalid login. Please try again.')
                g.errors['total'] += 1
    return render_template("default/id/login.html")


@viewAccount.route('/logout')
def logout():
    session.pop('user_id', None)
    session.pop('email', None)
    session.pop('password', None)
    return redirect(url_for('account.login'))


@viewAccount.route("/password_reset", methods=['GET', 'POST'])
def password_reset():
    if request.method == "POST":
        # check exists email
        if ControllerUsers().user_exists_by_email(request.form['email']):
            # get user_id by email
            user_id = str(ControllerUsers().user_id_by_email(request.form['email']))

            # create recovery code
            recovery_code = ControllerUsersRecoveryCodes().code_generate()

            # remove old recovery codes for user
            ControllerUsersRecoveryCodes().delete(user_id)
            # write new recovery code to database
            ControllerUsersRecoveryCodes().create(user_id, recovery_code)

            # send mail message with recovery code
            subject = u'GoCloud.ru: Код восстановления доступа'
            message = u'Код восстановления: %s' % recovery_code
            lead = u"""
            Данный код необходимо ввести на странице подтверждения
            <a href="https://gocloud.ru/account/password_reset_step2">сброса пароля</a>.
            """
            callout = u'Если вы не хотите сбрасывать пароль, то просто проигнорируйте (или удалите) данное письмо.'
            # controllers.Mail().send(request.form['email'], subject, message)

            email = ControllerMessagesEmail()
            email.send(title=subject, to=request.form['email'], lead=lead, message=message, callout=callout)

            # redirect to step 2
            return redirect(url_for('account.password_reset_step2'))
        else:
            g.errors['items'].append(u'Произошла ошибка. Введите корректный адрес е.почты.')
            g.errors['total'] += 1
    return render_template('default/id/password_reset_step1.html')


@viewAccount.route("/password_reset_step2", methods=['GET', 'POST'])
def password_reset_step2():
    if request.method == "POST":
        # check exists email
        if ControllerUsers().user_exists_by_email(request.form['email']):
            # get user_id by email
            user_id = ControllerUsers().user_id_by_email(request.form['email'])
            recovery_code = request.form['recovery_code']

            # check valid recovery codes
            if ControllerUsersRecoveryCodes().check(user_id, recovery_code):
                # remove old recovery codes for user
                ControllerUsersRecoveryCodes().delete(user_id)

                # generate new password
                new_password = ControllerUsers().generate_password()

                # save password
                ControllerUsers().update(user_id, password=new_password)

                # send mail message with new password
                message = u"""Новый пароль: %s""" % new_password
                subject = u"""GoCloud.ru: Новый пароль"""
                lead = u"""
                Пароль для доступа в a< href="https://gocloud.ru/account/login">личный кабинет</a> был сброшен.
                """
                callout = u"""Запомните новый пароль и удалите данное сообщение."""
                # controllers.Mail().send(request.form['email'], subject, message)

                email = ControllerMessagesEmail()
                email.send(title=subject, to=session['email'], lead=lead, message=message, callout=callout)

                # redirect to login page
                return redirect(url_for('account.login'))
            # redirect to step 2
            g.errors['items'].append(u'Ошибочный код')
            g.errors['total'] += 1
            return redirect(url_for('account.password_reset_step2'))
        else:
            g.errors['items'].append(u'Произошла ошибка. Введите корректный адрес е.почты.')
            g.errors['total'] += 1
    return render_template('default/id/password_reset_step2.html')


@viewAccount.route("/password_update", methods=['GET', 'POST'])
def password_update():
    """
    Обновление пароля из личного кабинета с уведомлением владельца по ел.почте
    :return:
    """
    # check session
    if not ControllerUsers().check_session():
        return redirect(url_for("account.logout"))
    # auth user
    if not ControllerUsers().auth(session['email'], session['password']):
        return redirect(url_for("account.logout"))

    if request.method == "POST":
        # Проверка старого пароля
        check_old = ControllerUsers().auth(session['email'], request.form['old_password'])

        if check_old and request.form['new_password'] == request.form['new_password_confirm']:
            # Обновляем пароль
            ControllerUsers().update(session['user_id'], password=request.form['new_password'])

            # send mail message with recovery code
            lead = u"""
            Пароль для достуна в личный кабинет был успешно изменён.
            """
            message = u"""Пароль: %s""" % request.form['new_password']
            callout = u"""
            """
            subject = u'GoCloud.ru: Смена пароля'

            email = ControllerMessagesEmail()
            email.send(
                title=subject,
                to=session['email'],
                lead=lead,
                message=message,
                callout=callout
            )

            return redirect(url_for('account.password_update'))
    return render_template('default/id/password_update.html')


@viewAccount.route('/sshkey', methods=['GET', 'POST'])
def sshkey():
    # check session
    if not ControllerUsers().check_session():
        return redirect(url_for("account.logout"))
    # auth user
    if not ControllerUsers().auth(session['email'], session['password']):
        return redirect(url_for("account.logout"))

    controllersshkey = ControllerSSHKey(session['user_id'])

    if request.method == "POST":
        try:
            ssh = SSHKey(request.form['sshkey'])
        except Exception as e:
            g.errors['items'].append(u"Не корректный ssh-ключ.")
            g.errors['total'] += 1
        else:
            print(ssh.bits)
            print(ssh.hash())

            controllersshkey.set(request.form['sshkey'])

    sshkey = {
        "exists": controllersshkey.check(),
        "sshkey": controllersshkey.get()
    }

    return render_template('default/id/sshkey.html', sshkey=sshkey)


@viewAccount.route('/sshkey_delete', methods=['POST'])
def sshkey_delete():
    # check session
    if not ControllerUsers().check_session():
        return redirect(url_for("account.logout"))
    # auth user
    if not ControllerUsers().auth(session['email'], session['password']):
        return redirect(url_for("account.logout"))

    controllersshkey = ControllerSSHKey(session['user_id'])
    controllersshkey.delete()

    return redirect(url_for('account.sshkey'))


@viewAccount.route('/api', methods=['GET', 'POST'])
def api():
    # check session
    if not ControllerUsers().check_session():
        return redirect(url_for("account.logout"))
    # auth user
    if not ControllerUsers().auth(session['email'], session['password']):
        return redirect(url_for("account.logout"))
    #
    if not ControllerAPI().check(session['user_id']):
        ControllerAPI().set(session['user_id'], '', [''], 0)
    #
    user_secret = ControllerAPI().get(session['user_id'])[0]
    return render_template(
        'default/id/api.html',
        user_secret=user_secret
    )


@viewAccount.route('/api_update', methods=['POST'])
def api_update():
    # check session
    if not ControllerUsers().check_session():
        return redirect(url_for("account.logout"))
    # auth user
    if not ControllerUsers().auth(session['email'], session['password']):
        return redirect(url_for("account.logout"))
    #
    ControllerAPI().set(
        session['user_id'],
        request.form['secret'],
        request.form['acl'],
        request.form['status']
    )
    #
    return redirect(url_for('account.api'))