package repocli

import (
	ocidigest "github.com/opencontainers/go-digest"
	"github.com/stretchr/testify/require"

	"bytes"
	"context"
	"fmt"
	"testing"
	"time"
)

func TestDigest(t *testing.T) {
	payload := []byte("Hello, World")
	digestobj := ocidigest.FromBytes(payload)
	require.NotNil(t, digestobj)
	enc := digestobj.Encoded()
	fmt.Printf("Digest: %s\n", enc)
	fmt.Printf("Alg: %s\n", digestobj.Algorithm())

	ctx, _ := context.WithTimeout(context.Background(), 10*time.Second)
	tmpdir := t.TempDir()
	imager := NewEmptyImager(tmpdir)
	require.NotNil(t, imager)
	digest := fmt.Sprintf("%s:%s", digestobj.Algorithm(), digestobj.Encoded())
	size := int64(len(payload))
	reader := bytes.NewReader(payload)

	err := imager.WriteLayer(ctx, digest, size, reader)
	require.NoError(t, err)

}