import os
import csv
from django.core.management.base import BaseCommand
from inventory.models import CarSerie, CarModel


class Command(BaseCommand):
    help = "Update or add CarSerie entries from a merged CSV file"

    def handle(self, *args, **kwargs):
        # Path to the merged CSV file
        base_dir = os.path.dirname(os.path.abspath(__file__))
        file_path = os.path.join(
            base_dir, "../../data/Updated_Merged_Car_Generation_and_Serie_Data.csv"
        )  # Adjust the path if needed

        if not os.path.exists(file_path):
            self.stdout.write(self.style.ERROR(f"File not found: {file_path}"))
            return

        with open(file_path, newline="", encoding="utf-8") as csvfile:
            reader = csv.DictReader(csvfile)
            for row in reader:
                try:
                    car_model = CarModel.objects.get(pk=row["id_car_model"])
                except CarModel.DoesNotExist:
                    self.stdout.write(
                        self.style.WARNING(
                            f"CarModel with ID {row['id_car_model']} not found"
                        )
                    )
                    continue

                car_serie, created = CarSerie.objects.update_or_create(
                    id_car_serie=row["id_car_serie"],
                    defaults={
                        "id_car_model": car_model,
                        "name": row["name"],
                        "arabic_name": "-",
                        "year_begin": int(float(row["year_begin"]))
                        if row["year_begin"]
                        else None,
                        "year_end": int(float(row["year_end"]))
                        if row["year_end"]
                        else None,
                        "generation_name": row["generation_name"],
                    },
                )

                action = "Created" if created else "Updated"
                self.stdout.write(
                    self.style.SUCCESS(
                        f"{action} CarSerie with ID {car_serie.id_car_serie}"
                    )
                )