# -*- encoding: UTF-8 -*-
from django.core.exceptions import ImproperlyConfigured
from django.core.mail import send_mail
from django.core.mail.message import BadHeaderError
from django.db.models.query_utils import Q
from django.views.generic.base import RedirectView
from django.views.generic.edit import UpdateView, DeleteView
from django.core.urlresolvers import reverse_lazy
from django.views.generic import ListView, DetailView, CreateView
from django.contrib import messages
from rest_framework.generics import ListAPIView

from pure_pagination.mixins import PaginationMixin
from .forms import *

from .models import *
# Create your views here.


class DinamicPaginationMixin(PaginationMixin):
    def get_paginate_by(self, queryset):
        self.paginate_by = self.request.GET.get('rpp', 10)
        if self.paginate_by:
            self.paginate_by = int(self.paginate_by)
        return self.paginate_by

    def get_context_data(self, **kwargs):
        context = super(DinamicPaginationMixin, self).get_context_data(**kwargs)
        context['rpp'] = self.get_paginate_by(self.queryset)
        return context


class SearchMixin(object):
    def get_search(self):
        return self.request.GET.get('search', '')

    def get_filter(self, queryset):
        raise ImproperlyConfigured('Debe especificar implementar el filtro de búsqueda')

    def get_queryset(self):
        queryset = super(SearchMixin, self).get_queryset()
        queryset = self.get_filter(queryset)
        return queryset

    def get_context_data(self, **kwargs):
        context = super(SearchMixin, self).get_context_data(**kwargs)
        context['search'] = self.get_search()
        return context


class DepartamentosApiView(ListAPIView):
    model = departamentos

    def get_queryset(self):
        dependencia = self.request.GET.get('dependencia')

        if dependencia:
            return departamentos.objects.filter(dependencia__id=dependencia)

        return super(DepartamentosApiView, self).get_queryset()


class ListaDependenciasView(ListView):
    model = dependencias

    def get_filter(self, queryset):
        search = self.get_search()
        if search:
            queryset = queryset.filter(
                Q(nombre__icontains=search) |
                Q(clave_dependencia__icontains=search)
            )
        return queryset

    def get_context_data(self, **kwargs):
        context = super(ListaDependenciasView, self).get_context_data(**kwargs)
        context["dependencia_ac"] = "active"
        context["dependencia"] = "active"
        return context


class CrearDependenciaView(CreateView):
    model = dependencias
    form_class = DependenciasForm

    def get_context_data(self, **kwargs):
        context = super(CrearDependenciaView, self).get_context_data(**kwargs)
        context["dependencia_ac"] = "active"
        context["dependencia"] = "active"
        return context


class UpdateDependenciasView(UpdateView):
    model = dependencias
    form_class = DependenciasForm
    success_url = reverse_lazy("lista-dependencias")

    def get_context_data(self, **kwargs):
        context = super(UpdateDependenciasView, self).get_context_data(**kwargs)
        context["dependencia_ac"] = "active"
        context["dependencia"] = "active"
        return context


class EliminarDependenciasView(DeleteView):
    model = dependencias
    success_url = reverse_lazy("lista-dependencias")

    def get_context_data(self, **kwargs):
        context = super(EliminarDependenciasView, self).get_context_data(**kwargs)
        context["dependencia"] = "active"
        return context


class DetalleDependenciaView(DetailView):
    model = dependencias

    def get_context_data(self, **kwargs):
        context = super(DetalleDependenciaView, self).get_context_data(**kwargs)
        context["dependencia"] = "active"
        context["dependencia_ac"] = "active"
        return context


class ListaDepartamentoView(ListView):
    model = departamentos

    def get_filter(self, queryset):
        search = self.get_search()
        if search:
            queryset = queryset.filter(
                Q(nombre__icontains=search) |
                Q(clave_dependencia__icontains=search)
            )
        return queryset

    def get_context_data(self, **kwargs):
        context = super(ListaDepartamentoView, self).get_context_data(**kwargs)
        context["dependencia_ac"] = "active"
        context["dependencia"] = "active"
        return context


class CrearDepartamentoView(CreateView):
    model = departamentos
    form_class = DeparamentosForm

    def get_context_data(self, **kwargs):
        context = super(CrearDepartamentoView, self).get_context_data(**kwargs)
        context["dependencia_ac"] = "active"
        context["dependencia"] = "active"
        return context


class UpdateDepartamentoView(UpdateView):
    model = departamentos
    form_class = DeparamentosForm
    success_url = reverse_lazy("lista-departamento")

    def get_context_data(self, **kwargs):
        context = super(UpdateDepartamentoView, self).get_context_data(**kwargs)
        context["dependencia_ac"] = "active"
        context["dependencia"] = "active"
        return context


class EliminarDepartamentoView(DeleteView):
    model = departamentos
    success_url = reverse_lazy("lista-departamento")

    def get_context_data(self, **kwargs):
        context = super(EliminarDepartamentoView, self).get_context_data(**kwargs)
        context["dependencia"] = "active"
        return context


class DetalleDepartamentoView(DetailView):
    model = departamentos

    def get_context_data(self, **kwargs):
        context = super(DetalleDepartamentoView, self).get_context_data(**kwargs)
        context["dependencia"] = "active"
        context["dependencia_ac"] = "active"
        return context