import os
from rest_framework.response import Response
from rest_framework import viewsets, status
from rest_framework.permissions import IsAuthenticated
from django.utils import timezone
from integrations.models import (
    EncryptionConfigurationError,
    ImmichIntegration,
    StravaToken,
    WandererIntegration,
    UserAPIKey,
    get_field_fernet,
)
from django.conf import settings


class IntegrationView(viewsets.ViewSet):
    permission_classes = [IsAuthenticated]

    def list(self, request):
        """
        RESTful GET method for listing all integrations.
        """
        immich_integrations = ImmichIntegration.objects.filter(user=request.user)
        google_map_integration = (
            settings.GOOGLE_MAPS_API_KEY != ""
            or UserAPIKey.objects.filter(
                user=request.user,
                provider="google_maps",
            ).exists()
        )
        strava_integration_global = (
            settings.STRAVA_CLIENT_ID != "" and settings.STRAVA_CLIENT_SECRET != ""
        )
        strava_integration_user = StravaToken.objects.filter(user=request.user).exists()
        wanderer_integration = WandererIntegration.objects.filter(
            user=request.user
        ).exists()
        is_wanderer_expired = False

        if wanderer_integration:
            token_expiry = (
                WandererIntegration.objects.filter(user=request.user)
                .first()
                .token_expiry
            )
            if token_expiry and token_expiry < timezone.now():
                is_wanderer_expired = True

        api_key_status = {
            "enabled": UserAPIKey.objects.filter(user=request.user).exists(),
            "available": True,
            "error": None,
        }
        try:
            get_field_fernet()
        except EncryptionConfigurationError as exc:
            api_key_status = {
                "enabled": False,
                "available": False,
                "error": str(exc),
            }

        return Response(
            {
                "immich": immich_integrations.exists(),
                "google_maps": google_map_integration,
                "api_keys": api_key_status,
                "strava": {
                    "global": strava_integration_global,
                    "user": strava_integration_user,
                },
                "wanderer": {
                    "exists": wanderer_integration,
                    "expired": is_wanderer_expired,
                },
            },
            status=status.HTTP_200_OK,
        )