// Copyright © 2021 Weald Technology Trading
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package walletsharedexport

import (
	"context"
	"encoding/hex"
	"strings"

	"github.com/pkg/errors"
)

type dataOut struct {
	shares [][]byte
}

func output(_ context.Context, data *dataOut) (string, error) {
	if data == nil {
		return "", errors.New("no data")
	}

	builder := strings.Builder{}
	for i := range data.shares {
		builder.WriteString(hex.EncodeToString(data.shares[i]))
		if i != len(data.shares)-1 {
			builder.WriteString("\n")
		}
	}

	return builder.String(), nil
}
