from django.db import migrations, models
import django.db.models.deletion


class Migration(migrations.Migration):

    dependencies = [
        ("location_data", "0004_soillocation_farm_boundary"),
        ("dashboard_data", "0001_initial"),
    ]

    operations = [
        migrations.CreateModel(
            name="NdviObservation",
            fields=[
                ("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
                ("observation_date", models.DateField(db_index=True)),
                ("mean_ndvi", models.FloatField()),
                ("ndvi_map", models.JSONField(blank=True, default=dict)),
                ("vegetation_health_class", models.CharField(max_length=64)),
                ("satellite_source", models.CharField(default="sentinel-2", max_length=64)),
                ("cloud_cover", models.FloatField(blank=True, null=True)),
                ("metadata", models.JSONField(blank=True, default=dict)),
                ("created_at", models.DateTimeField(auto_now_add=True, db_index=True)),
                ("location", models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name="ndvi_observations", to="location_data.soillocation")),
            ],
            options={
                "ordering": ["-observation_date", "-created_at"],
                "verbose_name": "NDVI Observation",
                "verbose_name_plural": "NDVI Observations",
                "constraints": [
                    models.UniqueConstraint(fields=("location", "observation_date", "satellite_source"), name="ndvi_unique_location_date_source"),
                ],
            },
        ),
    ]