from django.shortcuts import render, redirect
from .models import Call, AddMessage
from .forms import CallForm, LoginForm, AddMessageForm
from django.views.generic import DetailView
from django.contrib.auth import authenticate, login, logout
from django.contrib.auth.decorators import login_required
from django.contrib.auth.mixins import LoginRequiredMixin


# LOGIN / LOGOUT

def loginView(request):
    form = LoginForm(request.POST or None)
    context = {
        'form': form,
    }

    if form.is_valid():
        username = request.POST['username']
        password = request.POST['password']
        user = authenticate(request, username=username, password=password)
        if user:
            login(request, user)
            if user.is_staff == False:
                return redirect('home')
            else:
                return redirect('staffhome')
    else:
        return render(request, 'clientapp/login.html', context)


def logoutView(request):
    logout(request)
    return redirect('login')


# CALLS / ARCHIVE

@login_required(login_url='login')
def homeView(request):
    calls = Call.objects.filter(author__company=request.user.company).filter(is_archived=False)
    context = {
        'title': 'Главная страница', 
        'calls': calls
    }
    if request.user.is_staff == False:
        return render(request, 'clientapp/index.html', context)
    else:
        return redirect('staffhome')


@login_required(login_url='login')
def callsArchiveView(request):
    calls = Call.objects.order_by('-id').filter(author__company=request.user.company).filter(is_archived=True)
    context = {
        'title': 'Архив обращений', 
        'calls': calls
    }

    return render(request, 'clientapp/archive.html', context)


@login_required(login_url='login')
def callCreateView(request):
    error = ''
    if request.method == 'POST':
        form = CallForm(request.POST)
        if form.is_valid():
            form = form.save(commit=False)
            form.author = request.user
            form.save()
            return redirect('home')
        else:
            error = 'Форма была неверной. Попробуйте еще раз.'

    form = CallForm()
    context = {
        'form': form,
        'error': error,
        'title': 'Создание нового обращения'
    }

    return render(request, 'clientapp/addnewcall.html', context)


@login_required(login_url='login')
def callDetailView(request, call_id):
    call = Call.objects.get(id=call_id)
    add_messages = AddMessage.objects.filter(call=call_id).order_by('created')
    form = AddMessageForm(request.POST)
    
    if request.method == 'POST':
        if form.is_valid():
            form = form.save(commit=False)
            form.author = request.user
            form.call = call
            form.save()
            return redirect('call-detail', call_id)

    context = {
        'call': call,
        'add_messages': add_messages,
        'form': form
    }

    return render(request, 'clientapp/call.html', context)


@login_required(login_url='login')
def staffHomeView(request):
    calls = Call.objects.filter(is_archived=False)
    context = {
        'title': 'STAFF: Главная страница', 
        'calls': calls
    }

    if request.user.is_staff == True:
        return render(request, 'clientapp/staffhome.html', context)
    else:
        return redirect('home')