# coding=utf-8
import re
from django.db.models import Q
from access.models import User
from lms.decors import api_decor
from lms.tools import out_date_format, condition_factory, user_fabric
from finance.models import Price, Bill, ServiceRequest
from management.letters import sent_new_bill, sent_clean_letter, send_burning_course_letter
from management.models import News, Feedback, Comment
from courses.models import Course, CourseTheme
from journals.models import TeacherJ, CourseThemeJ, LessonJ, HomeworkJ

@api_decor(without_auth=False, need_keys=['title', 'content', 'to'], method='POST', check_request=True)
def self_sent_letter(request, context):
    # Отправки письма из интерфейса
    if user_fabric(request.user) and request.user.is_admin or request.user.is_staff:
        sent_clean_letter(request.POST['title'], request.POST['content'], request.POST['to'])
        context['code'] = '1'
    else:
        context['code'] = '0'
        context['response'] = u'Только администраторы системы могут отправлять письма через данную функцию'
    return context


@api_decor(without_auth=True)
def get_news(request, context):
    result_len = 3
    news = News.objects.filter(public=True)[0:result_len]
    context['data'] = {}
    context['data'] = [
        {'id': i.id, 'title': i.title, 'content': i.content, 'author': i.author.get_short_name(),
         'public_date': out_date_format(i.public_date, no_time=True),
         'icon': i.icon.url if i.icon else '/static/img/1438629985_paper_plane_fly_freedom_flat_icon.png'}
        for i in news]
    context['code'] = '1'
    return context


@api_decor(without_auth=False, need_keys=['phone'], method='POST', check_request=True)
def search_users(request, context):
    context['data'] = []
    if request.user.in_role != 'U':
        email = request.POST['phone'].lower()
        if User.objects.filter(phone__contains=re.sub(r'\W+', r'', email)).exists():
            for i in User.objects.filter(phone__contains=re.sub(r'\W+', r'', email).strip()[1:]):
                context['data'].append(
                    {'id': i.id, 'user': i.get_full_name(), 'phone': i.phone, 'user_role': i.get_in_role_display(),
                     'email': i.email})

        elif User.objects.filter(email__contains=email).exists():
            for i in User.objects.filter(email__contains=email):
                context['data'].append(
                    {'id': i.id, 'user': i.get_full_name(), 'phone': i.phone, 'user_role': i.get_in_role_display(),
                     'email': i.email})

        else:
            context['code'] = '0'
            return context
        context['code'] = '1'

    else:
        context['code'] = '0'
    return context


@api_decor(without_auth=False)
def get_managers(request, context):
    context['data'] = []
    if request.user.in_role == 'A' or request.user.in_role == 'S':
        for i in User.objects.filter(
                        Q(is_active=True, deactivate=False, in_role='M') | Q(is_active=True, deactivate=False,
                                                                             in_role='S')):
            context['data'].append({'id': i.id, 'name': i.get_short_name()})
    context['code'] = '1'
    return context


@api_decor(without_auth=False, need_keys=['id'], method='POST', check_request=True)
def get_services_for_user(request, context):
    context['data'] = []
    for i in Price.objects.filter(public=True):
        service = ''
        if i.course:
            service = str(i.course.get_direction())
        context['data'].append({'service': service, 'name': i.get_name(), 'id': i.id})
    context['code'] = '1'
    return context


@api_decor(without_auth=False)
def new_bill(request, context):
    if request.POST.get('new_bill_user_id'):
        if request.POST.get('new_bill_service'):
            user = User.objects.get(id=request.POST['new_bill_user_id'])
            service = Price.objects.get(id=request.POST['new_bill_checked_service'])
            bill = Bill.objects.create(user=user,
                                       service=service,
                                       manager=request.user,
                                       price=request.POST['new_bill_cost'],
                                       description=request.POST.get('new_bill_comment') if request.POST.get(
                                           'new_bill_comment') else '')
            sent_new_bill(bill)
            if ServiceRequest.objects.filter(
                            Q(student=bill.user, course=bill.service.course, manager=request.user, status='S') | Q(
                        student=bill.user, course=bill.service.course, manager=request.user,
                        status='W')).exists():
                req = ServiceRequest.objects.filter(
                    Q(student=bill.user, course=bill.service.course, manager=request.user, status='S') | Q(
                        student=bill.user, course=bill.service.course, manager=request.user, status='W')).first()
                req.status = 'F'
                req.save()
            context['code'] = '1'
        else:
            context['code'] = '0'
            context['response'] = u'Ошибка получение предоставляемой услуги'
    else:
        context['code'] = '0'
        context['response'] = u'Ошибка получения пользователя'
    return context



@api_decor(without_auth=False)
def sent_charge(request, context):
    if request.user.in_role == 'S' or request.user.in_role == 'A':
        if request.POST.get('charge_request_seller_checked'):
            manager = User.objects.get(id=request.POST['charge_request_seller_checked'])
            s_request = ServiceRequest.objects.get(id=request.POST['charge_request_object_id'])
            s_request.manager = manager
            s_request.status = 'S'
            if request.POST.get('charge_request_description'):
                s_request.charge = request.POST['charge_request_description']
            s_request.save()
    return context


@api_decor(without_auth=True)
def new_feedback(request, context):
    condition = condition_factory([
        {'condition': request.POST.get('email'), 'error': u'Email не указан'},
        {'condition': request.POST.get('phone'), 'error': u'Телефон не указан'},
        {'condition': request.POST.get('name'), 'error': u'Имя не указано'},
        {'condition': request.POST.get('text'), 'error': u'Текст обращения не указан'},
        {'condition': not Feedback.objects.filter(
            Q(email=request.POST['email']) | Q(phone=request.POST['phone'])).exclude(closed=True).exists(),
         'error': u'Ваше прошлое обращение еще не обработано. Дождитесь решения.'}
    ])
    if condition['code'] == '1':
        context['code'] = '1'
        Feedback.objects.create(name=request.POST['name'], email=request.POST['email'], phone=request.POST['phone'],
                                text=request.POST['text'])
    else:
        context['code'] = '0'
        context['response'] = condition['response']
    return context


@api_decor(without_auth=False, check_request=True, need_keys=['comment'], method='POST')
def read_comment(request, context):
    try:
        comment = Comment.objects.get(id=request.POST['comment'])
    except Comment.DoesNotExist:
        pass
    else:
        if not comment.saw.filter(id=request.user.id).exists():
            comment.saw.add(request.user)
    return context

@api_decor(without_auth=False)
def burning_course(request):
    course = Course.objects.get(id=request.GET['course'])
    user = User.objects.get(id=request.GET['id'])

    send_burning_course_letter(user, course)


""" 
    Все функции снизу используются в подобии кабинета для отдела по работе с персоналом.
    Если хочешь переписать - перепиши.
"""
@api_decor(without_auth=False)
def find_user(request, context):
    try:
        user = User.objects.get(id=request.GET['user'])
        data = "%s | %s %s" % (user.id, user.name, user.fname)
    except User.DoesNotExist:
        data = '0'
    except ValueError:
        data = '0'

    return data

@api_decor(without_auth=False)
def find_course(request, context):
    try:
        course = Course.objects.get(id=request.GET['course'])
        data = course.title
    except Course.DoesNotExist:
        data = '0'
    except ValueError:
        data = '0'

    return data

@api_decor(without_auth=False)
def open_lessons(request, context):
    try:
        user = User.objects.get(id=request.GET['user'])
        course = Course.objects.get(id=request.GET['course'])
        checkbox = True if request.GET.get('homes') == 'on' else False
        themes = request.GET['themes'].split(' ')
        themes.remove('')
        for t in themes:
            t = int(t)
            
    except Exception:
        return '0'

    try:
        teachj, status = TeacherJ.objects.get_or_create(student=user, course=course)
        if themes:
            course_themes = CourseTheme.objects.filter(course=course, sort__in=themes)
        else:
            course_themes = CourseTheme.objects.filter(course=course)
        for t in course_themes:
            for l in LessonJ.objects.filter(student=user, parent__material=t): 
                l.success = True
                l.save()
                if open_homes:
                    if HomeworkJ.objects.filter(student=user, parent__material=t).exists():
                        homej = HomeworkJ.objects.get(student=user, parent__material=t)
                        homej.success = True
                        homej.save()
            themej, status = CourseThemeJ.objects.get_or_create(student=user, material=t)
            themej.success = True
            themej.save()
        teachj.reload_progress()
    except Exception:
        return '1'

    return '2'

@api_decor(without_auth=False)
def open_homes(request, context):
    try:
        user = User.objects.get(id=request.GET['user'])
        course = Course.objects.get(id=request.GET['course'])
        themes = request.GET['themes'].split(' ')
        themes.remove('')
        for t in themes:
            t = int(t)

    except Exception:
        return'0'

    try:
        if themes:
            course_themes = CourseTheme.objects.filter(course=course, sort__in=themes)
        else:
            course_themes = CourseTheme.objects.filter(course=course)
        for t in course_themes:
            if HomeworkJ.objects.filter(student=user, parent__material=t).exists():
                homej = HomeworkJ.objects.get(student=user, parent__material=t)
                homej.success = True
                homej.save()
    except Exception:
        return '1'

    return '2'

@api_decor(without_auth=False)
def change_pass(request, context):
    try:
        user = User.objects.get(id=request.GET['user'])
        password = request.GET.get('pass')
    except Exception:
        return '0'

    try:
        user.set_password(password)
        user.save()
    except Exception:
        return '1'

    return '2'