302 lines
13 KiB
Python
302 lines
13 KiB
Python
"""
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API endpoints for AJAX requests and data retrieval.
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"""
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from django.contrib.auth.mixins import LoginRequiredMixin
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from django.http import JsonResponse
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from django.utils import timezone
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from django.views import View
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from ..models import ObjItem
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class GetLocationsView(LoginRequiredMixin, View):
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"""API endpoint for getting locations by satellite ID in GeoJSON format."""
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def get(self, request, sat_id):
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locations = (
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ObjItem.objects.filter(parameter_obj__id_satellite=sat_id)
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.select_related(
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"geo_obj",
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"parameter_obj",
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"parameter_obj__polarization",
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)
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)
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if not locations.exists():
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return JsonResponse({"error": "Объектов не найдено"}, status=404)
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features = []
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for loc in locations:
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if not hasattr(loc, "geo_obj") or not loc.geo_obj or not loc.geo_obj.coords:
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continue
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param = getattr(loc, 'parameter_obj', None)
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if not param:
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continue
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features.append(
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{
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"type": "Feature",
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"geometry": {
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"type": "Point",
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"coordinates": [loc.geo_obj.coords[0], loc.geo_obj.coords[1]],
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},
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"properties": {
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"pol": param.polarization.name if param.polarization else "-",
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"freq": param.frequency * 1000000 if param.frequency else 0,
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"name": loc.name or "-",
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"id": loc.geo_obj.id,
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},
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}
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)
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return JsonResponse({"type": "FeatureCollection", "features": features})
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class LyngsatDataAPIView(LoginRequiredMixin, View):
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"""API endpoint for getting LyngSat source data."""
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def get(self, request, lyngsat_id):
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from lyngsatapp.models import LyngSat
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try:
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lyngsat = LyngSat.objects.select_related(
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'id_satellite',
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'polarization',
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'modulation',
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'standard'
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).get(id=lyngsat_id)
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# Format date with local timezone
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last_update_str = '-'
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if lyngsat.last_update:
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local_time = timezone.localtime(lyngsat.last_update)
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last_update_str = local_time.strftime("%d.%m.%Y")
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data = {
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'id': lyngsat.id,
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'satellite': lyngsat.id_satellite.name if lyngsat.id_satellite else '-',
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'frequency': f"{lyngsat.frequency:.3f}" if lyngsat.frequency else '-',
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'polarization': lyngsat.polarization.name if lyngsat.polarization else '-',
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'modulation': lyngsat.modulation.name if lyngsat.modulation else '-',
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'standard': lyngsat.standard.name if lyngsat.standard else '-',
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'sym_velocity': f"{lyngsat.sym_velocity:.0f}" if lyngsat.sym_velocity else '-',
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'fec': lyngsat.fec or '-',
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'channel_info': lyngsat.channel_info or '-',
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'last_update': last_update_str,
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'url': lyngsat.url or None,
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}
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return JsonResponse(data)
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except LyngSat.DoesNotExist:
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return JsonResponse({'error': 'Источник LyngSat не найден'}, status=404)
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except Exception as e:
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return JsonResponse({'error': str(e)}, status=500)
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class SigmaParameterDataAPIView(LoginRequiredMixin, View):
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"""API endpoint for getting SigmaParameter data."""
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def get(self, request, parameter_id):
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from ..models import Parameter
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try:
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parameter = Parameter.objects.select_related(
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'id_satellite',
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'polarization',
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'modulation',
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'standard'
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).prefetch_related(
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'sigma_parameter__mark',
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'sigma_parameter__id_satellite',
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'sigma_parameter__polarization',
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'sigma_parameter__modulation',
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'sigma_parameter__standard'
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).get(id=parameter_id)
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# Get all related SigmaParameter
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sigma_params = parameter.sigma_parameter.all()
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sigma_data = []
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for sigma in sigma_params:
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# Get marks
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marks = []
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for mark in sigma.mark.all().order_by('-timestamp'):
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mark_str = '+' if mark.mark else '-'
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date_str = '-'
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if mark.timestamp:
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local_time = timezone.localtime(mark.timestamp)
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date_str = local_time.strftime("%d.%m.%Y %H:%M")
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marks.append({
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'mark': mark_str,
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'date': date_str
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})
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# Format start and end dates
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datetime_begin_str = '-'
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if sigma.datetime_begin:
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local_time = timezone.localtime(sigma.datetime_begin)
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datetime_begin_str = local_time.strftime("%d.%m.%Y %H:%M")
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datetime_end_str = '-'
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if sigma.datetime_end:
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local_time = timezone.localtime(sigma.datetime_end)
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datetime_end_str = local_time.strftime("%d.%m.%Y %H:%M")
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sigma_data.append({
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'id': sigma.id,
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'satellite': sigma.id_satellite.name if sigma.id_satellite else '-',
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'frequency': f"{sigma.frequency:.3f}" if sigma.frequency else '-',
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'transfer_frequency': f"{sigma.transfer_frequency:.3f}" if sigma.transfer_frequency else '-',
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'freq_range': f"{sigma.freq_range:.3f}" if sigma.freq_range else '-',
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'polarization': sigma.polarization.name if sigma.polarization else '-',
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'modulation': sigma.modulation.name if sigma.modulation else '-',
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'standard': sigma.standard.name if sigma.standard else '-',
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'bod_velocity': f"{sigma.bod_velocity:.0f}" if sigma.bod_velocity else '-',
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'snr': f"{sigma.snr:.1f}" if sigma.snr is not None else '-',
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'power': f"{sigma.power:.1f}" if sigma.power is not None else '-',
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'status': sigma.status or '-',
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'packets': 'Да' if sigma.packets else 'Нет' if sigma.packets is not None else '-',
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'datetime_begin': datetime_begin_str,
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'datetime_end': datetime_end_str,
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'marks': marks
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})
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return JsonResponse({
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'parameter_id': parameter.id,
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'sigma_parameters': sigma_data
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})
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except Parameter.DoesNotExist:
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return JsonResponse({'error': 'Parameter не найден'}, status=404)
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except Exception as e:
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return JsonResponse({'error': str(e)}, status=500)
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class SourceObjItemsAPIView(LoginRequiredMixin, View):
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"""API endpoint for getting ObjItems related to a Source."""
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def get(self, request, source_id):
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from ..models import Source
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try:
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# Load Source with prefetch_related for ObjItem
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source = Source.objects.prefetch_related(
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'source_objitems',
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'source_objitems__parameter_obj',
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'source_objitems__parameter_obj__id_satellite',
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'source_objitems__parameter_obj__polarization',
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'source_objitems__parameter_obj__modulation',
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'source_objitems__geo_obj'
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).get(id=source_id)
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# Get all related ObjItems, sorted by created_at
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objitems = source.source_objitems.all().order_by('created_at')
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objitems_data = []
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for objitem in objitems:
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# Get parameter data
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param = getattr(objitem, 'parameter_obj', None)
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satellite_name = '-'
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frequency = '-'
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freq_range = '-'
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polarization = '-'
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bod_velocity = '-'
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modulation = '-'
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snr = '-'
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if param:
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if hasattr(param, 'id_satellite') and param.id_satellite:
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satellite_name = param.id_satellite.name
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frequency = f"{param.frequency:.3f}" if param.frequency is not None else '-'
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freq_range = f"{param.freq_range:.3f}" if param.freq_range is not None else '-'
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if hasattr(param, 'polarization') and param.polarization:
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polarization = param.polarization.name
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bod_velocity = f"{param.bod_velocity:.0f}" if param.bod_velocity is not None else '-'
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if hasattr(param, 'modulation') and param.modulation:
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modulation = param.modulation.name
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snr = f"{param.snr:.0f}" if param.snr is not None else '-'
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# Get geo data
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geo_timestamp = '-'
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geo_location = '-'
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geo_coords = '-'
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if hasattr(objitem, 'geo_obj') and objitem.geo_obj:
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if objitem.geo_obj.timestamp:
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local_time = timezone.localtime(objitem.geo_obj.timestamp)
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geo_timestamp = local_time.strftime("%d.%m.%Y %H:%M")
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geo_location = objitem.geo_obj.location or '-'
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if objitem.geo_obj.coords:
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longitude = objitem.geo_obj.coords.coords[0]
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latitude = objitem.geo_obj.coords.coords[1]
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lon = f"{longitude}E" if longitude > 0 else f"{abs(longitude)}W"
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lat = f"{latitude}N" if latitude > 0 else f"{abs(latitude)}S"
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geo_coords = f"{lat} {lon}"
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objitems_data.append({
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'id': objitem.id,
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'name': objitem.name or '-',
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'satellite_name': satellite_name,
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'frequency': frequency,
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'freq_range': freq_range,
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'polarization': polarization,
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'bod_velocity': bod_velocity,
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'modulation': modulation,
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'snr': snr,
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'geo_timestamp': geo_timestamp,
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'geo_location': geo_location,
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'geo_coords': geo_coords
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})
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return JsonResponse({
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'source_id': source_id,
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'objitems': objitems_data
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})
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except Source.DoesNotExist:
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return JsonResponse({'error': 'Источник не найден'}, status=404)
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except Exception as e:
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return JsonResponse({'error': str(e)}, status=500)
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class LyngsatTaskStatusAPIView(LoginRequiredMixin, View):
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"""API endpoint for getting Celery task status."""
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def get(self, request, task_id):
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from celery.result import AsyncResult
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from django.core.cache import cache
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task = AsyncResult(task_id)
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response_data = {
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'task_id': task_id,
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'state': task.state,
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'result': None,
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'error': None
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}
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if task.state == 'PENDING':
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response_data['status'] = 'Задача в очереди...'
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elif task.state == 'PROGRESS':
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response_data['status'] = task.info.get('status', '')
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response_data['current'] = task.info.get('current', 0)
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response_data['total'] = task.info.get('total', 1)
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response_data['percent'] = int((task.info.get('current', 0) / task.info.get('total', 1)) * 100)
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elif task.state == 'SUCCESS':
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# Get result from cache
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result = cache.get(f'lyngsat_task_{task_id}')
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if result:
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response_data['result'] = result
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response_data['status'] = 'Задача завершена успешно'
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else:
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response_data['result'] = task.result
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response_data['status'] = 'Задача завершена'
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elif task.state == 'FAILURE':
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response_data['status'] = 'Ошибка при выполнении задачи'
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response_data['error'] = str(task.info)
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else:
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response_data['status'] = task.state
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return JsonResponse(response_data)
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