from django.shortcuts import render
from django.http import JsonResponse
import requests
from django.core import serializers
from django.http import HttpResponse, HttpResponseNotFound
from django.views.decorators.cache import cache_page
from django.views.decorators.http import require_GET
from django.utils.decorators import method_decorator
from django.views import View
from django.views.generic import TemplateView
from mainapp.models import Satellite
from .models import Transponders
from .utils import get_band_names

class CesiumMapView(TemplateView):
    template_name = 'mapsapp/map3d.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['sats'] = Satellite.objects.all()
        return context

class GetFootprintsView(View):
    def get(self, request, sat_id):
        try:
            sat_name = Satellite.objects.get(id=sat_id).name
            footprint_names = get_band_names(sat_name)
            
            return JsonResponse(footprint_names, safe=False)
        except Exception as e:
            return JsonResponse({"error": str(e)}, status=400)


class TileProxyView(View):
    @method_decorator(require_GET)
    @method_decorator(cache_page(60 * 60 * 24))  # Cache for 24 hours
    def dispatch(self, *args, **kwargs):
        return super().dispatch(*args, **kwargs)

    def get(self, request, footprint_name, z, x, y):
        if not footprint_name.replace('-', '').replace('_', '').isalnum():
            return HttpResponse("Invalid footprint name", status=400)

        url = f"https://static.satbeams.com/tiles/{footprint_name}/{z}/{x}/{y}.png"

        try:
            resp = requests.get(url, timeout=10)
            if resp.status_code == 200:
                response = HttpResponse(resp.content, content_type='image/png')
                response["Access-Control-Allow-Origin"] = "*"
                return response
            else:
                return HttpResponseNotFound("Tile not found")
        except Exception as e:
            return HttpResponse(f"Proxy error: {e}", status=500)
    
class LeafletMapView(TemplateView):
    template_name = 'mapsapp/map2d.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['sats'] = Satellite.objects.all()
        context['trans'] = Transponders.objects.all()
        return context


class GetTransponderOnSatIdView(View):
    def get(self, request, sat_id):
        trans = Transponders.objects.filter(sat_id=sat_id)
        output = []
        for tran in trans:
            output.append(
                {
                    "name": tran.name,
                    "frequency": tran.frequency,
                    "frequency_range": tran.frequency_range,
                    "zone_name": tran.zone_name,
                    "polarization": tran.polarization.name
                }
            )
        if not trans:
            return JsonResponse({'error': 'Объектов не найдено'}, status=400)

        return JsonResponse(output, safe=False)