from typing import Any, Dict, Optional, Tuple, Union, cast, Type
from django.views.generic import DetailView, ListView, CreateView, UpdateView, RedirectView
from django.shortcuts import get_object_or_404, render
from django.core.serializers.json import DjangoJSONEncoder
from django.urls import reverse
from django.db.models import Q, Model
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.auth.decorators import login_required
from django.contrib.contenttypes.models import ContentType
from django.contrib import messages
from django.http import (
    JsonResponse,
    HttpResponseRedirect,
    Http404,
    HttpRequest,
    HttpResponse,
)
from django.db.models import Count
from django.core.files.uploadedfile import UploadedFile
from django.forms import ModelForm
from django.db.models.query import QuerySet
from simple_history.models import HistoricalRecords
from django.contrib.auth import get_user_model
from django.contrib.auth.models import AnonymousUser
from .models import Ride, RollerCoasterStats, RideModel, CATEGORY_CHOICES
from .forms import RideForm
from parks.models import Park
from core.views import SlugRedirectMixin
from moderation.mixins import EditSubmissionMixin, PhotoSubmissionMixin, HistoryMixin
from moderation.models import EditSubmission
from media.models import Photo
from accounts.models import User
from companies.models import Manufacturer
from designers.models import Designer


def show_coaster_fields(request: HttpRequest) -> HttpResponse:
    """Show roller coaster specific fields based on category selection"""
    category = request.GET.get('category')
    if category != 'RC':  # Only show for roller coasters
        return HttpResponse('')
    return render(request, "rides/partials/coaster_fields.html")


class RideCreateView(LoginRequiredMixin, CreateView):
    """View for creating a new ride"""
    model = Ride
    form_class = RideForm
    template_name = 'rides/ride_form.html'

    def get_success_url(self):
        """Get URL to redirect to after successful creation"""
        if hasattr(self, 'park'):
            return reverse('parks:rides:ride_detail', kwargs={
                'park_slug': self.park.slug,
                'ride_slug': self.object.slug
            })
        return reverse('rides:ride_detail', kwargs={'ride_slug': self.object.slug})

    def get_form_kwargs(self):
        """Pass park to the form"""
        kwargs = super().get_form_kwargs()
        if 'park_slug' in self.kwargs:
            self.park = get_object_or_404(Park, slug=self.kwargs['park_slug'])
            kwargs['park'] = self.park
        return kwargs

    def get_context_data(self, **kwargs):
        """Add park and park_slug to context"""
        context = super().get_context_data(**kwargs)
        if hasattr(self, 'park'):
            context['park'] = self.park
            context['park_slug'] = self.park.slug
        context['is_edit'] = False
        return context

    def form_valid(self, form):
        """Handle form submission including new items"""
        # Check for new manufacturer
        manufacturer_name = form.cleaned_data.get('manufacturer_search')
        if manufacturer_name and not form.cleaned_data.get('manufacturer'):
            # Create submission for new manufacturer
            EditSubmission.objects.create(
                user=self.request.user,
                content_type=ContentType.objects.get_for_model(Manufacturer),
                submission_type="CREATE",
                changes={"name": manufacturer_name},
            )

        # Check for new designer
        designer_name = form.cleaned_data.get('designer_search')
        if designer_name and not form.cleaned_data.get('designer'):
            # Create submission for new designer
            EditSubmission.objects.create(
                user=self.request.user,
                content_type=ContentType.objects.get_for_model(Designer),
                submission_type="CREATE",
                changes={"name": designer_name},
            )

        # Check for new ride model
        ride_model_name = form.cleaned_data.get('ride_model_search')
        manufacturer = form.cleaned_data.get('manufacturer')
        if ride_model_name and not form.cleaned_data.get('ride_model') and manufacturer:
            # Create submission for new ride model
            EditSubmission.objects.create(
                user=self.request.user,
                content_type=ContentType.objects.get_for_model(RideModel),
                submission_type="CREATE",
                changes={
                    "name": ride_model_name,
                    "manufacturer": manufacturer.id
                },
            )

        return super().form_valid(form)


class RideDetailView(DetailView):
    """View for displaying ride details"""
    model = Ride
    template_name = 'rides/ride_detail.html'
    slug_url_kwarg = 'ride_slug'

    def get_queryset(self):
        """Get ride for the specific park if park_slug is provided"""
        queryset = Ride.objects.all().select_related(
            'park',
            'ride_model',
            'ride_model__manufacturer'
        ).prefetch_related('photos')

        if 'park_slug' in self.kwargs:
            queryset = queryset.filter(park__slug=self.kwargs['park_slug'])
            
        return queryset

    def get_context_data(self, **kwargs):
        """Add park_slug to context if it exists"""
        context = super().get_context_data(**kwargs)
        if 'park_slug' in self.kwargs:
            context['park_slug'] = self.kwargs['park_slug']
        return context


class RideUpdateView(LoginRequiredMixin, EditSubmissionMixin, UpdateView):
    """View for updating an existing ride"""
    model = Ride
    form_class = RideForm
    template_name = 'rides/ride_form.html'
    slug_url_kwarg = 'ride_slug'

    def get_success_url(self):
        """Get URL to redirect to after successful update"""
        if hasattr(self, 'park'):
            return reverse('parks:rides:ride_detail', kwargs={
                'park_slug': self.park.slug,
                'ride_slug': self.object.slug
            })
        return reverse('rides:ride_detail', kwargs={'ride_slug': self.object.slug})

    def get_queryset(self):
        """Get ride for the specific park if park_slug is provided"""
        queryset = Ride.objects.all()
        if 'park_slug' in self.kwargs:
            queryset = queryset.filter(park__slug=self.kwargs['park_slug'])
        return queryset

    def get_form_kwargs(self):
        """Pass park to the form"""
        kwargs = super().get_form_kwargs()
        # For park-specific URLs, use the park from the URL
        if 'park_slug' in self.kwargs:
            self.park = get_object_or_404(Park, slug=self.kwargs['park_slug'])
            kwargs['park'] = self.park
        # For global URLs, use the ride's park
        else:
            self.park = self.get_object().park
            kwargs['park'] = self.park
        return kwargs

    def get_context_data(self, **kwargs):
        """Add park and park_slug to context"""
        context = super().get_context_data(**kwargs)
        if hasattr(self, 'park'):
            context['park'] = self.park
            context['park_slug'] = self.park.slug
        context['is_edit'] = True
        return context

    def form_valid(self, form):
        """Handle form submission including new items"""
        # Check for new manufacturer
        manufacturer_name = form.cleaned_data.get('manufacturer_search')
        if manufacturer_name and not form.cleaned_data.get('manufacturer'):
            # Create submission for new manufacturer
            EditSubmission.objects.create(
                user=self.request.user,
                content_type=ContentType.objects.get_for_model(Manufacturer),
                submission_type="CREATE",
                changes={"name": manufacturer_name},
            )

        # Check for new designer
        designer_name = form.cleaned_data.get('designer_search')
        if designer_name and not form.cleaned_data.get('designer'):
            # Create submission for new designer
            EditSubmission.objects.create(
                user=self.request.user,
                content_type=ContentType.objects.get_for_model(Designer),
                submission_type="CREATE",
                changes={"name": designer_name},
            )

        # Check for new ride model
        ride_model_name = form.cleaned_data.get('ride_model_search')
        manufacturer = form.cleaned_data.get('manufacturer')
        if ride_model_name and not form.cleaned_data.get('ride_model') and manufacturer:
            # Create submission for new ride model
            EditSubmission.objects.create(
                user=self.request.user,
                content_type=ContentType.objects.get_for_model(RideModel),
                submission_type="CREATE",
                changes={
                    "name": ride_model_name,
                    "manufacturer": manufacturer.id
                },
            )

        return super().form_valid(form)


class RideListView(ListView):
    """View for displaying a list of rides"""
    model = Ride
    template_name = 'rides/ride_list.html'
    context_object_name = 'rides'

    def get_queryset(self):
        """Get all rides or filter by park if park_slug is provided"""
        queryset = Ride.objects.all().select_related(
            'park',
            'ride_model',
            'ride_model__manufacturer'
        ).prefetch_related('photos')

        if 'park_slug' in self.kwargs:
            self.park = get_object_or_404(Park, slug=self.kwargs['park_slug'])
            queryset = queryset.filter(park=self.park)
            
        return queryset

    def get_context_data(self, **kwargs):
        """Add park to context if park_slug is provided"""
        context = super().get_context_data(**kwargs)
        if hasattr(self, 'park'):
            context['park'] = self.park
            context['park_slug'] = self.kwargs['park_slug']
        return context


class SingleCategoryListView(ListView):
    """View for displaying rides of a specific category"""
    model = Ride
    template_name = 'rides/park_category_list.html'
    context_object_name = 'rides'

    def get_queryset(self):
        """Get rides filtered by category and optionally by park"""
        category = self.kwargs.get('category')
        queryset = Ride.objects.filter(
            category=category
        ).select_related(
            'park',
            'ride_model',
            'ride_model__manufacturer'
        )

        if 'park_slug' in self.kwargs:
            self.park = get_object_or_404(Park, slug=self.kwargs['park_slug'])
            queryset = queryset.filter(park=self.park)
            
        return queryset

    def get_context_data(self, **kwargs):
        """Add park and category information to context"""
        context = super().get_context_data(**kwargs)
        if hasattr(self, 'park'):
            context['park'] = self.park
            context['park_slug'] = self.kwargs['park_slug']
        context['category'] = dict(CATEGORY_CHOICES).get(self.kwargs['category'])
        return context


# Alias for parks app to maintain backward compatibility
ParkSingleCategoryListView = SingleCategoryListView


def is_privileged_user(user: Any) -> bool:
    """Check if user has privileged access"""
    return bool(user and hasattr(user, 'is_staff') and (user.is_staff or user.is_superuser))


@login_required
def search_manufacturers(request: HttpRequest) -> HttpResponse:
    """Search manufacturers and return results for HTMX"""
    query = request.GET.get("q", "").strip()
    
    # Show all manufacturers on click, filter on input
    manufacturers = Manufacturer.objects.all().order_by("name")
    if query:
        manufacturers = manufacturers.filter(name__icontains=query)
    manufacturers = manufacturers[:10]
    
    return render(
        request,
        "rides/partials/manufacturer_search_results.html",
        {"manufacturers": manufacturers, "search_term": query},
    )


@login_required
def search_designers(request: HttpRequest) -> HttpResponse:
    """Search designers and return results for HTMX"""
    query = request.GET.get("q", "").strip()
    
    # Show all designers on click, filter on input
    designers = Designer.objects.all().order_by("name")
    if query:
        designers = designers.filter(name__icontains=query)
    designers = designers[:10]
    
    return render(
        request,
        "rides/partials/designer_search_results.html",
        {"designers": designers, "search_term": query},
    )


@login_required
def search_ride_models(request: HttpRequest) -> HttpResponse:
    """Search ride models and return results for HTMX"""
    query = request.GET.get("q", "").strip()
    manufacturer_id = request.GET.get("manufacturer")
    
    # Show all ride models on click, filter on input
    ride_models = RideModel.objects.select_related("manufacturer").order_by("name")
    if query:
        ride_models = ride_models.filter(name__icontains=query)
    if manufacturer_id:
        ride_models = ride_models.filter(manufacturer_id=manufacturer_id)
    ride_models = ride_models[:10]
    
    return render(
        request,
        "rides/partials/ride_model_search_results.html",
        {"ride_models": ride_models, "search_term": query, "manufacturer_id": manufacturer_id},
    )