package storage

import (
	"context"
	"fmt"

	awsconfig "github.com/aws/aws-sdk-go-v2/config"
	"github.com/aws/aws-sdk-go-v2/service/s3"
)

func NewUnversionedS3(ctx context.Context, bucket, prefix string) (*S3, error) {
	if bucket == "" {
		return nil, fmt.Errorf("storage: s3 backend requires a bucket")
	}
	sdkConfig, err := awsconfig.LoadDefaultConfig(ctx)
	if err != nil {
		return nil, fmt.Errorf("storage: load s3 config: %w", err)
	}
	client := s3.NewFromConfig(sdkConfig)
	versioning, err := client.GetBucketVersioning(ctx, &s3.GetBucketVersioningInput{
		Bucket: &bucket,
	})
	if err != nil {
		return nil, fmt.Errorf("storage: check s3 bucket versioning: %w", err)
	}
	if versioning.Status != "" {
		return nil, fmt.Errorf("storage: s3 cache bucket must not use versioning")
	}
	return NewS3(client, bucket, prefix)
}