"""
Organizations Console UI views
"""
from django.contrib.auth.decorators import login_required
from django.core.paginator import Paginator
from django.db.models import Q
from django.shortcuts import render

from .models import Department, Hospital, Patient, Physician


@login_required
def hospital_list(request):
    """Hospitals list view"""
    queryset = Hospital.objects.all()
    
    # Apply RBAC filters
    user = request.user
    if not user.is_px_admin() and user.hospital:
        queryset = queryset.filter(id=user.hospital.id)
    
    # Apply filters
    status_filter = request.GET.get('status')
    if status_filter:
        queryset = queryset.filter(status=status_filter)
    
    # Search
    search_query = request.GET.get('search')
    if search_query:
        queryset = queryset.filter(
            Q(name__icontains=search_query) |
            Q(name_ar__icontains=search_query) |
            Q(code__icontains=search_query)
        )
    
    # Ordering
    queryset = queryset.order_by('name')
    
    # 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)
    
    context = {
        'page_obj': page_obj,
        'hospitals': page_obj.object_list,
        'filters': request.GET,
    }
    
    return render(request, 'organizations/hospital_list.html', context)


@login_required
def department_list(request):
    """Departments list view"""
    queryset = Department.objects.select_related('hospital', 'manager')
    
    # Apply RBAC filters
    user = request.user
    if not user.is_px_admin() and user.hospital:
        queryset = queryset.filter(hospital=user.hospital)
    
    # Apply filters
    hospital_filter = request.GET.get('hospital')
    if hospital_filter:
        queryset = queryset.filter(hospital_id=hospital_filter)
    
    status_filter = request.GET.get('status')
    if status_filter:
        queryset = queryset.filter(status=status_filter)
    
    # Search
    search_query = request.GET.get('search')
    if search_query:
        queryset = queryset.filter(
            Q(name__icontains=search_query) |
            Q(name_ar__icontains=search_query) |
            Q(code__icontains=search_query)
        )
    
    # Ordering
    queryset = queryset.order_by('hospital', 'name')
    
    # 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 hospitals for filter
    hospitals = Hospital.objects.filter(status='active')
    if not user.is_px_admin() and user.hospital:
        hospitals = hospitals.filter(id=user.hospital.id)
    
    context = {
        'page_obj': page_obj,
        'departments': page_obj.object_list,
        'hospitals': hospitals,
        'filters': request.GET,
    }
    
    return render(request, 'organizations/department_list.html', context)


@login_required
def physician_list(request):
    """Physicians list view"""
    queryset = Physician.objects.select_related('hospital', 'department', 'user')
    
    # Apply RBAC filters
    user = request.user
    if not user.is_px_admin() and user.hospital:
        queryset = queryset.filter(hospital=user.hospital)
    
    # Apply filters
    hospital_filter = request.GET.get('hospital')
    if hospital_filter:
        queryset = queryset.filter(hospital_id=hospital_filter)
    
    department_filter = request.GET.get('department')
    if department_filter:
        queryset = queryset.filter(department_id=department_filter)
    
    status_filter = request.GET.get('status')
    if status_filter:
        queryset = queryset.filter(status=status_filter)
    
    # Search
    search_query = request.GET.get('search')
    if search_query:
        queryset = queryset.filter(
            Q(first_name__icontains=search_query) |
            Q(last_name__icontains=search_query) |
            Q(license_number__icontains=search_query) |
            Q(specialization__icontains=search_query)
        )
    
    # Ordering
    queryset = queryset.order_by('last_name', 'first_name')
    
    # 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 hospitals for filter
    hospitals = Hospital.objects.filter(status='active')
    if not user.is_px_admin() and user.hospital:
        hospitals = hospitals.filter(id=user.hospital.id)
    
    context = {
        'page_obj': page_obj,
        'physicians': page_obj.object_list,
        'hospitals': hospitals,
        'filters': request.GET,
    }
    
    return render(request, 'organizations/physician_list.html', context)


@login_required
def patient_list(request):
    """Patients list view"""
    queryset = Patient.objects.select_related('primary_hospital')
    
    # Apply RBAC filters
    user = request.user
    if not user.is_px_admin() and user.hospital:
        queryset = queryset.filter(primary_hospital=user.hospital)
    
    # Apply filters
    hospital_filter = request.GET.get('hospital')
    if hospital_filter:
        queryset = queryset.filter(primary_hospital_id=hospital_filter)
    
    status_filter = request.GET.get('status')
    if status_filter:
        queryset = queryset.filter(status=status_filter)
    
    # Search
    search_query = request.GET.get('search')
    if search_query:
        queryset = queryset.filter(
            Q(mrn__icontains=search_query) |
            Q(first_name__icontains=search_query) |
            Q(last_name__icontains=search_query) |
            Q(national_id__icontains=search_query) |
            Q(phone__icontains=search_query)
        )
    
    # Ordering
    queryset = queryset.order_by('last_name', 'first_name')
    
    # 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 hospitals for filter
    hospitals = Hospital.objects.filter(status='active')
    if not user.is_px_admin() and user.hospital:
        hospitals = hospitals.filter(id=user.hospital.id)
    
    context = {
        'page_obj': page_obj,
        'patients': page_obj.object_list,
        'hospitals': hospitals,
        'filters': request.GET,
    }
    
    return render(request, 'organizations/patient_list.html', context)