from __future__ import unicode_literals

import logging

from django.contrib import messages
from django.contrib.auth.decorators import login_required, permission_required
from django.shortcuts import render, redirect

from eveonline.managers import EveManager
from services.forms import ServicePasswordForm
from .manager import XenForoManager
from .models import XenforoUser
from .tasks import XenforoTasks

logger = logging.getLogger(__name__)

ACCESS_PERM = 'xenforo.access_xenforo'


@login_required
@permission_required(ACCESS_PERM)
def activate_xenforo_forum(request):
    logger.debug("activate_xenforo_forum called by user %s" % request.user)
    character = EveManager.get_main_character(request.user)
    logger.debug("Adding XenForo user for user %s with main character %s" % (request.user, character))
    result = XenForoManager.add_user(character.character_name, request.user.email)
    # Based on XenAPI's response codes
    if result['response']['status_code'] == 200:
        XenforoUser.objects.update_or_create(user=request.user, defaults={'username': result['username']})
        logger.info("Updated user %s with XenForo credentials. Updating groups." % request.user)
        messages.success(request, 'Activated XenForo account.')
        credentials = {
            'username': result['username'],
            'password': result['password'],
        }
        return render(request, 'registered/service_credentials.html',
                      context={'credentials': credentials, 'service': 'XenForo'})

    else:
        logger.error("Unsuccessful attempt to activate xenforo for user %s" % request.user)
        messages.error(request, 'An error occurred while processing your XenForo account.')
    return redirect("auth_services")


@login_required
@permission_required(ACCESS_PERM)
def deactivate_xenforo_forum(request):
    logger.debug("deactivate_xenforo_forum called by user %s" % request.user)
    if XenforoTasks.delete_user(request.user):
        logger.info("Successfully deactivated XenForo for user %s" % request.user)
        messages.success(request, 'Deactivated XenForo account.')
    else:
        messages.error(request, 'An error occurred while processing your XenForo account.')
    return redirect("auth_services")


@login_required
@permission_required(ACCESS_PERM)
def reset_xenforo_password(request):
    logger.debug("reset_xenforo_password called by user %s" % request.user)
    if XenforoTasks.has_account(request.user):
        result = XenForoManager.reset_password(request.user.xenforo.username)
        # Based on XenAPI's response codes
        if result['response']['status_code'] == 200:
            logger.info("Successfully reset XenForo password for user %s" % request.user)
            messages.success(request, 'Reset XenForo account password.')
            credentials = {
                'username': request.user.xenforo.username,
                'password': result['password'],
            }
            return render(request, 'registered/service_credentials.html',
                          context={'credentials': credentials, 'service': 'XenForo'})
    logger.error("Unsuccessful attempt to reset XenForo password for user %s" % request.user)
    messages.error(request, 'An error occurred while processing your XenForo account.')
    return redirect("auth_services")


@login_required
@permission_required(ACCESS_PERM)
def set_xenforo_password(request):
    logger.debug("set_xenforo_password called by user %s" % request.user)
    if request.method == 'POST':
        logger.debug("Received POST request with form.")
        form = ServicePasswordForm(request.POST)
        logger.debug("Form is valid: %s" % form.is_valid())
        if form.is_valid() and XenforoTasks.has_account(request.user):
            password = form.cleaned_data['password']
            logger.debug("Form contains password of length %s" % len(password))
            result = XenForoManager.update_user_password(request.user.xenforo.username, password)
            if result['response']['status_code'] == 200:
                logger.info("Successfully reset XenForo password for user %s" % request.user)
                messages.success(request, 'Changed XenForo password.')
            else:
                logger.error("Failed to install custom XenForo password for user %s" % request.user)
                messages.error(request, 'An error occurred while processing your XenForo account.')
            return redirect('auth_services')
    else:
        logger.debug("Request is not type POST - providing empty form.")
        form = ServicePasswordForm()

    logger.debug("Rendering form for user %s" % request.user)
    context = {'form': form, 'service': 'Forum'}
    return render(request, 'registered/service_password.html', context=context)