from django.conf import settings
from django.contrib import messages
from django.contrib.auth.models import Group
from django.core.mail import send_mail
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
from django.core.urlresolvers import reverse
from django.db.models import Q
from django.http import HttpResponse, HttpResponseForbidden
from django.shortcuts import render, get_object_or_404, redirect
from django.views.generic import ListView, DetailView, View, UpdateView, CreateView
from pprint import pprint, pformat
import itertools
import natsort
import pydash as _; _.map = _.map_; _.filter = _.filter_

from .mixins import CheckForUserMixin
from .models import User, Team, UserFinancialInfo
from archilance import util
from archilance.mixins import BaseMixin
from projects.forms import PortfolioForm
from projects.models import Project
from reviews.models import Review
from specializations.models import Specialization
from work_sell.forms import WorkSellForm

from .forms import (
    ContractorFilterForm,
    CustomerProfileProjectRealtyForm,
    UserFinancialInfoEditForm,
    UserProfileEditForm,
)


def send_mail_test(request):
    send_mail('Subject here', 'Here is the message.Mukhtar hello ', '', ['muhtarzubanchi05@gmail.com'], fail_silently=False)
    return HttpResponse("Mail send")


class UserListView(ListView):
    model = User
    template_name = 'users_list.html'
    context_object_name = 'users'


class UserProfileEditView(BaseMixin, View):
    form_class = UserProfileEditForm
    template_name = 'user_profile_edit.html'
    
    def dispatch(self, request, *args, **kwargs):
        if request.user.is_authenticated() and request.user.pk == int(kwargs.get('pk')):
            return super().dispatch(request, *args, **kwargs)
        else:
            return HttpResponseForbidden('403 Forbidden')
    
    def get(self, request, *args, **kwargs):
        context = self.get_context_data(**_.merge({}, request.GET, kwargs))
        
        if request.user.is_contractor():
            root = util.get_or_none(Specialization, name='_root')
            nodes = root.get_descendants('lft')
            context.update({'nodes': nodes})
        
        form = self.form_class(request=request, instance=request.user)
        context.update({'form': form})
        
        return render(request, self.template_name, context)
    
    def post(self, request, *args, **kwargs):
        context = self.get_context_data(**kwargs)
        customer = request.user
        form = self.form_class(request.POST, request.FILES, request=request, instance=customer)
        
        if form.is_valid():
            import code; code.interact(local=dict(globals(), **locals()))
            
            form.save()
            
            messages.info(request, 'Заказчик успешно отредактирован')
            redirect_to = request.POST.get('next')
            return redirect(redirect_to)
        else:
            if form.errors:
                messages.info(request, (
                    '<p>Произошла ошибка (form)</p>'
                    '<pre>{form}</pre>'
                ).format(form=pformat(form.errors)))
            
            context.update({'form': form})
            return render(request, self.template_name, context)


class UserFinancialInfoEditView(BaseMixin, View):
    form_class = UserFinancialInfoEditForm
    template_name = 'user_financial_info_edit.html'
    
    def dispatch(self, request, *args, **kwargs):
        if request.user.is_authenticated() and request.user.pk == int(kwargs.get('pk')):
            return super().dispatch(request, *args, **kwargs)
        else:
            return HttpResponseForbidden('403 Forbidden')
    
    def get(self, request, *args, **kwargs):
        context = self.get_context_data(**_.merge({}, request.GET, kwargs))
        form = self.form_class(request=request, instance=request.user.financial_info)
        context.update({'form': form})
        return render(request, self.template_name, context)
    
    def post(self, request, *args, **kwargs):
        context = self.get_context_data(**kwargs)
        form = self.form_class(request.POST, request.FILES, request=request, instance=request.user.financial_info)
        
        # if form.is_valid():
        #     financical_instance = form.save()
        #     request.user.contractor_financial_info = financical_instance
        #     request.user.save()
        #     messages.info(request, 'Данные успешно отредактированы')
        #     return redirect(reverse('users:contractor-financical', kwargs={'pk': request.user.pk}))
        # 
        # return render(request, self.template_name, {'form': form})
        
        if form.is_valid():
            form.save()
            
            messages.info(request, 'Финансовая информация успешно отредактирована')
            redirect_to = request.POST.get('next')
            return redirect(redirect_to)
        else:
            if form.errors:
                messages.info(request, (
                    '<p>Произошла ошибка (form)</p>'
                    '<pre>{form}</pre>'
                ).format(form=pformat(form.errors)))
            
            context.update({'form': form})
            return render(request, self.template_name, context)


class ContractorFilterView(BaseMixin, View):
    template_name = 'contractor_filter.html'
    form_class = ContractorFilterForm
    
    def get(self, request, *args, **kwargs):
        form = self.form_class(request.GET, request=request)
        context = self.get_context_data(**_.merge({}, request.GET, kwargs))
        coll = []
        
        if form.is_valid():
            contractors = teams = None
            contr_count = team_count = None
            get_contractors = get_teams = None
            ord = None
            
            cro = form.cleaned_data.get('cro')
            specialization = form.cleaned_data.get('specialization')
            location = form.cleaned_data.get('location')
            work_type = form.cleaned_data.get('work_type')
            build_classif = form.cleaned_data.get('building_classification')
            constr_type = form.cleaned_data.get('construction_type')
            
            
            party_types = form.cleaned_data.get('party_types')
            last_party_types = form.cleaned_data.get('last_party_types')
            
            if party_types == 'all':
                get_contractors = get_teams = True
            elif party_types == 'contractors':
                get_contractors = True
            elif party_types == 'teams':
                get_teams = True
            elif not party_types:
                if last_party_types == 'contractors':
                    get_contractors = True
                elif last_party_types == 'teams':
                    get_teams = True
                else:
                    get_contractors = get_teams = True
            
            if party_types:
                last_party_types = party_types
            
            context.update({'last_party_types': last_party_types})
            
            
            
            if get_contractors:
                contractors = User.contractor_objects.filter(cro=cro)
                
                if specialization:
                    contractors = contractors.filter(
                        contractor_specializations__lft__gte=specialization.lft,
                        contractor_specializations__rght__lte=specialization.rght,
                    )
                
                if location:
                    contractors = contractors.filter(
                        location__lft__gte=location.lft,
                        location__rght__lte=location.rght,
                    )
                
                if work_type:
                    contractors = contractors.filter(orders__project__work_type=work_type)
                
                if build_classif:
                    contractors = contractors.filter(orders__project__realty__building_classification=build_classif)
                
                if constr_type:
                    contractors = contractors.filter(orders__project__realty__construction_type=constr_type)
            
            
            
            if get_teams:
                teams = Team.objects.filter(Q(users__cro=cro) | Q(owner__cro=cro))
                
                if specialization:
                    teams = teams.filter(
                        (
                            Q(users__contractor_specializations__lft__gte=specialization.lft)
                            & Q(users__contractor_specializations__rght__lte=specialization.rght)
                        ) | (
                            Q(owner__contractor_specializations__lft__gte=specialization.lft)
                            & Q(owner__contractor_specializations__rght__lte=specialization.rght)
                        ),
                    )
                
                if location:
                    teams = teams.filter(
                        (
                            Q(users__location__lft__gte=location.lft)
                            & Q(users__location__rght__lte=location.rght)
                        ) | (
                            Q(owner__location__lft__gte=location.lft)
                            & Q(owner__location__rght__lte=location.rght)
                        ),
                    )
                
                if work_type:
                    teams = teams.filter(
                        Q(users__orders__project__work_type=work_type)
                        | Q(owner__orders__project__work_type=work_type),
                    )
                
                if build_classif:
                    teams = teams.filter(
                        Q(users__orders__project__realty__building_classification=build_classif)
                        | Q(owner__orders__project__realty__building_classification=build_classif),
                    )
                
                if constr_type:
                    teams = teams.filter(
                        Q(users__orders__project__realty__construction_type=constr_type)
                        | Q(owner__orders__project__realty__construction_type=constr_type),
                    )
            
            if get_contractors and get_teams:
                coll = tuple(itertools.chain(contractors.distinct(), teams.distinct()))
                count = len(coll)
                display_msg = 'Найдено %s элементов' % count if count > 0 else 'Ничего не найдено'
            elif get_contractors:
                coll = contractors.distinct()
                count = coll.count()
                display_msg = 'Найдено %s исполнителей' % count if count > 0 else 'Ничего не найдено'
            elif get_teams:
                coll = teams.distinct()
                count = coll.count()
                display_msg = 'Найдено %s групп' % count if count > 0 else 'Ничего не найдено'
            
            
            order_by = form.cleaned_data.get('order_by')
            last_order_by = form.cleaned_data.get('last_order_by')
            reverse_order = form.cleaned_data.get('reverse_order')
            
            if order_by:
                reverse_order = not reverse_order if order_by == last_order_by else False
                ord = order_by
                last_order_by = ord
            elif last_order_by:
                ord = last_order_by
            
            if ord:
                if ord == 'name':
                    coll = natsort.natsorted(coll, key=lambda obj: getattr(obj, 'username', None) or obj.name, reverse=reverse_order)
                elif ord =='created':
                    coll = natsort.natsorted(coll, key=lambda obj: obj.created, reverse=reverse_order)
            
            context.update({
                'last_order_by': last_order_by,
                'reverse_order': reverse_order,
            })
        else:
            display_msg = 'Пожалуйста, введите корректные данные'
            
            if form.errors:
                messages.info(request, (
                    '<p>Произошла ошибка (form)</p>'
                    '<pre>{form}</pre>'
                ).format(form=pformat(form.errors)))
        
        paginator = Paginator(coll, settings.PAGE_SIZE)
        page = request.GET.get('page')
        
        try:
            coll = paginator.page(page)
        except PageNotAnInteger:
            coll = paginator.page(1)
        except EmptyPage:
            coll = paginator.page(paginator.num_pages)
        
        context.update({
            'form': form,
            'coll': coll,
            'is_paginated': True,
            'page_obj': coll,
            'display_msg': display_msg,
        })
        
        return render(request, self.template_name, context)


class ContractorProfileDetailView(DetailView):
    model = User
    worksell_form_class = WorkSellForm
    portfolio_form_class = PortfolioForm
    template_name = 'contractor_profile.html'
    context_object_name = 'contractor'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        
        context['worksell_form'] = self.worksell_form_class
        context['portfolio_form'] = self.portfolio_form_class
        
        resume = self.object.contractor_resume
        
        if resume:
            context['resume_diploms'] = resume.resume_files.filter(type='diplom')
            context['resume_cro'] = resume.resume_files.filter(type='cro')
        
        return context


class ContractorOfficeDetailView(DetailView):
    model = User
    template_name = 'contractor_office.html'
    context_object_name = 'contractor'


class CustomerProfileOpenProjectsView(BaseMixin, View):
    template_name = 'customer_profile_open_projects.html'
    form_class = CustomerProfileProjectRealtyForm
    
    def get(self, request, *args, **kwargs):
        context = self.get_context_data(**_.merge({}, request.GET, kwargs))
        customer = get_object_or_404(User.customer_objects, pk=kwargs.get('pk'))
        form = self.form_class(request.GET, request=request, customer=customer)
        projects = customer.projects.filter(state='active')
        trashed_projects = customer.projects.filter(state='trashed')
        
        if form.is_valid():
            realty = form.cleaned_data.get('realty')
            
            if realty:
                projects = projects.filter(realty=realty)
                trashed_projects = trashed_projects.filter(realty=realty)
        else:
            if form.errors:
                messages.info(request, (
                    '<p>Произошла ошибка (form)</p>'
                    '<pre>{form}</pre>'
                ).format(form=pformat(form.errors)))
        
        paginator = Paginator(projects, settings.PAGE_SIZE)
        page = request.GET.get('page')
        
        try:
            projects = paginator.page(page)
        except PageNotAnInteger:
            projects = paginator.page(1)
        except EmptyPage:
            projects = paginator.page(paginator.num_pages)
        
        context.update({
            'form': form,
            
            'projects': projects,
            'customer': customer,
            
            'open_project_count': projects.paginator.count,
            'trashed_project_count': trashed_projects.count(),
            
            'is_paginated': True,
            'page_obj': projects,
        })
        
        return render(request, self.template_name, context)


class CustomerProfileTrashedProjectsView(BaseMixin, View):
    template_name = 'customer_profile_trashed_projects.html'
    form_class = CustomerProfileProjectRealtyForm
    
    def get(self, request, *args, **kwargs):
        context = self.get_context_data(**_.merge({}, request.GET, kwargs))
        customer = get_object_or_404(User.customer_objects, pk=kwargs.get('pk'))
        form = self.form_class(request.GET, request=request, customer=customer)
        projects = customer.projects.filter(state='trashed')
        open_projects = customer.projects.filter(state='active')
        
        if form.is_valid():
            realty = form.cleaned_data.get('realty')
            
            if realty:
                projects = projects.filter(realty=realty)
                open_projects = open_projects.filter(realty=realty)
        else:
            if form.errors:
                messages.info(request, (
                    '<p>Произошла ошибка (form)</p>'
                    '<pre>{form}</pre>'
                ).format(form=pformat(form.errors)))
        
        paginator = Paginator(projects, settings.PAGE_SIZE)
        page = request.GET.get('page')
        
        try:
            projects = paginator.page(page)
        except PageNotAnInteger:
            projects = paginator.page(1)
        except EmptyPage:
            projects = paginator.page(paginator.num_pages)
        
        context.update({
            'form': form,
            
            'projects': projects,
            'customer': customer,
            
            'open_project_count': open_projects.count(),
            'trashed_project_count': projects.paginator.count,
            
            'is_paginated': True,
            'page_obj': projects,
        })
        
        return render(request, self.template_name, context)


class CustomerProfileCurrentProjectsView(BaseMixin, DetailView):
    model = User
    template_name = 'customer_profile_current_projects.html'
    context_object_name = 'customer'


class CustomerProfileReviewsView(BaseMixin, View):
    template_name = 'customer_profile_reviews.html'
    
    def get(self, request, *args, **kwargs):
        context = self.get_context_data(**_.merge({}, self.request.GET, kwargs))
        
        customer = get_object_or_404(User.customer_objects, pk=self.kwargs['pk'])
        reviews = Review.objects.filter(target_customer=customer)
        
        # import code; code.interact(local=dict(globals(), **locals()))
        
        context.update({
            'reviews': reviews,
            'customer': customer,
        })
        
        return render(request, self.template_name, context)


# import code; code.interact(local=dict(globals(), **locals()))