"""
Call Center Console UI views
"""
from django.contrib.auth.decorators import login_required
from django.core.paginator import Paginator
from django.db.models import Q, Avg
from django.shortcuts import get_object_or_404, render

from apps.organizations.models import Hospital

from .models import CallCenterInteraction


@login_required
def interaction_list(request):
    """Call center interactions list view"""
    queryset = CallCenterInteraction.objects.select_related(
        'patient', 'hospital', 'department', 'agent'
    )
    
    # Apply RBAC filters
    user = request.user
    if user.is_px_admin():
        pass
    elif user.hospital:
        queryset = queryset.filter(hospital=user.hospital)
    else:
        queryset = queryset.none()
    
    # Apply filters
    call_type_filter = request.GET.get('call_type')
    if call_type_filter:
        queryset = queryset.filter(call_type=call_type_filter)
    
    hospital_filter = request.GET.get('hospital')
    if hospital_filter:
        queryset = queryset.filter(hospital_id=hospital_filter)
    
    is_low_rating = request.GET.get('is_low_rating')
    if is_low_rating == 'true':
        queryset = queryset.filter(is_low_rating=True)
    
    # Search
    search_query = request.GET.get('search')
    if search_query:
        queryset = queryset.filter(
            Q(subject__icontains=search_query) |
            Q(caller_name__icontains=search_query) |
            Q(patient__mrn__icontains=search_query)
        )
    
    # Date range
    date_from = request.GET.get('date_from')
    if date_from:
        queryset = queryset.filter(call_started_at__gte=date_from)
    
    date_to = request.GET.get('date_to')
    if date_to:
        queryset = queryset.filter(call_started_at__lte=date_to)
    
    # Ordering
    queryset = queryset.order_by('-call_started_at')
    
    # Pagination
    page_size = int(request.GET.get('page_size', 25))
    paginator = Paginator(queryset, page_size)
    page_number = request.GET.get('page', 1)
    page_obj = paginator.get_page(page_number)
    
    # Get filter options
    hospitals = Hospital.objects.filter(status='active')
    if not user.is_px_admin() and user.hospital:
        hospitals = hospitals.filter(id=user.hospital.id)
    
    # Statistics
    stats = {
        'total': queryset.count(),
        'low_rating': queryset.filter(is_low_rating=True).count(),
        'avg_satisfaction': queryset.filter(satisfaction_rating__isnull=False).aggregate(
            avg=Avg('satisfaction_rating')
        )['avg'] or 0,
    }
    
    context = {
        'page_obj': page_obj,
        'interactions': page_obj.object_list,
        'stats': stats,
        'hospitals': hospitals,
        'filters': request.GET,
    }
    
    return render(request, 'callcenter/interaction_list.html', context)


@login_required
def interaction_detail(request, pk):
    """Call center interaction detail view"""
    interaction = get_object_or_404(
        CallCenterInteraction.objects.select_related(
            'patient', 'hospital', 'department', 'agent'
        ),
        pk=pk
    )
    
    context = {
        'interaction': interaction,
    }
    
    return render(request, 'callcenter/interaction_detail.html', context)