from django.shortcuts import render
from django.urls import reverse_lazy, reverse
from django.views.generic.base import TemplateView
from django.views.generic.edit import FormView, CreateView, UpdateView, DeleteView
from django.views.generic.detail import DetailView
from django.views.generic.list import ListView
from django.contrib.auth.mixins import LoginRequiredMixin
from django.db.models import Q

from .models import Employee, LogEntry, Todo
from .forms import (
    EmployeeForm, 
    EmployeePreCreateForm, 
    EmployeeArchiveForm,
    LogEntryForm,
    TodoForm, 
    TodoCreateForm
    )

class SearchResultsView(ListView):
    model = Employee
    template_name_suffix = '_search_results'

    def get_queryset(self):
        query = self.request.GET.get('q')
        object_list = Employee.objects.filter(
            Q(first_name__icontains=query) | Q(last_name__icontains=query)
        )
        return object_list

# Employees
class EmployeeListView(LoginRequiredMixin, ListView):
    model = Employee
    queryset = Employee.objects.filter(archived=False).order_by('hire_date')

class EmployeeArchivedView(LoginRequiredMixin, ListView):
    model = Employee
    paginate_by = 100
    template_name_suffix = '_archived'
    queryset = Employee.objects.filter(archived=True)

class EmployeePreCreateView(LoginRequiredMixin, FormView):
    template_name = 'board/employee_pre_form.html'
    form_class = EmployeePreCreateForm

    def form_valid(self, form):
        form.filter_onboarding_email()
        return super().form_valid(form)

    def get_success_url(self):
        return reverse('employee-list')

class EmployeeCreateView(LoginRequiredMixin, CreateView):
    model = Employee
    template_name_suffix = '_create_form'
    form_class = EmployeeForm

class EmployeeDetailView(LoginRequiredMixin, DetailView):
    model = Employee

class EmployeeUpdateView(LoginRequiredMixin, UpdateView):
    model = Employee
    form_class = EmployeeForm
    success_url = reverse_lazy('employee-list')

class EmployeeArchiveView(LoginRequiredMixin, UpdateView):
    model = Employee
    form_class = EmployeeArchiveForm
    template_name_suffix = '_archive_form'
    success_url = reverse_lazy('employee-list')

class EmployeeDeleteView(LoginRequiredMixin, DeleteView):
    model = Employee
    success_url = reverse_lazy('employee-list')


# LogEntries
class LogEntryListView(LoginRequiredMixin, ListView):
    model = LogEntry
    pk_url_kwarg = 'entry_pk'

class LogEntryCreateView(LoginRequiredMixin, CreateView):
    model = LogEntry
    pk_url_kwarg = 'entry_pk'
    template_name_suffix = '_create_form'
    form_class = LogEntryForm

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['employee'] = Employee.objects.get(pk=self.kwargs['pk'])
        return context

    def form_valid(self, form):
        form.instance.employee = Employee.objects.get(pk=self.kwargs['pk'])
        return super().form_valid(form)

    def get_success_url(self):
        return reverse('employee-detail', kwargs={'pk': self.kwargs['pk']})

class LogEntryDetailView(LoginRequiredMixin, DetailView):
    model = LogEntry
    pk_url_kwarg = 'entry_pk'

class LogEntryUpdateView(LoginRequiredMixin, UpdateView):
    model = LogEntry
    pk_url_kwarg = 'entry_pk'
    form_class = LogEntryForm

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['employee'] = Employee.objects.get(pk=self.kwargs['pk'])
        return context

    def get_success_url(self):
        return reverse('employee-detail', kwargs={'pk': self.kwargs['pk']})

class LogEntryDeleteView(LoginRequiredMixin, DeleteView):
    model = LogEntry
    pk_url_kwarg = 'entry_pk'
    success_url = reverse_lazy('entry-list')


# Todos
class TodoListView(LoginRequiredMixin, ListView):
    model = Todo
    pk_url_kwarg = 'todo_pk'

class TodoCreateView(LoginRequiredMixin, CreateView):
    model = Todo
    pk_url_kwarg = 'todo_pk'
    template_name_suffix = '_create_form'
    form_class = TodoCreateForm

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['employee'] = Employee.objects.get(pk=self.kwargs['pk'])
        return context

    def form_valid(self, form):
        form.instance.employee = Employee.objects.get(pk=self.kwargs['pk'])
        return super().form_valid(form)

    def get_success_url(self):
        return reverse('employee-detail', kwargs={'pk': self.kwargs['pk']})

class TodoDetailView(LoginRequiredMixin, DetailView):
    model = Todo
    pk_url_kwarg = 'todo_pk'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['employee'] = Employee.objects.get(pk=self.kwargs['pk'])
        return context

class TodoUpdateView(LoginRequiredMixin, UpdateView):
    model = Todo
    pk_url_kwarg = 'todo_pk'
    form_class = TodoForm

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['employee'] = Employee.objects.get(pk=self.kwargs['pk'])
        return context

class TodoDeleteView(LoginRequiredMixin, DeleteView):
    model = Todo
    pk_url_kwarg = 'todo_pk'
    
    def get_success_url(self):
        return reverse('todo-deleted', kwargs={'pk': self.kwargs['pk']})

class TodoDeleteDoneView(LoginRequiredMixin, TemplateView):
    template_name = 'board/item_deleted.html'