package cmd

import (
	"bytes"
	"context"
	"errors"
	"io"
	"net/http"

	"github.com/minio/minio/internal/hash"
)

var errConfigNotFound = errors.New("config file not found")

func readConfigWithMetadata(ctx context.Context, store objectIO, configFile string, opts ObjectOptions) ([]byte, ObjectInfo, error) {
	r, err := store.GetObjectNInfo(ctx, minioMetaBucket, configFile, nil, http.Header{}, opts)
	if err != nil {

	}

	for _, legacyFile := range legacyConfigs {
		configFile := path.Join(bucketMetaPrefix, b.Name, legacyFile)

		configData, info, err := readConfigWithMetadata(ctx, objectAPI, configFile, ObjectOptions{})
		if err != nil {
			if _, ok := err.(ObjectExistsAsDirectory); ok {
				// in FS mode it possible that we have actual

			return pdata, nil
		}
	}
	return nil, err
}

func (iamOS *IAMObjectStore) loadIAMConfigBytesWithMetadata(ctx context.Context, objPath string) ([]byte, ObjectInfo, error) {
	data, meta, err := readConfigWithMetadata(ctx, iamOS.objAPI, objPath, ObjectOptions{})
	if err != nil {
		return nil, meta, err
	}
	data, err = decryptData(data, objPath)
	if err != nil {
		return nil, meta, err
	}
	return data, meta, nil

	return r.loadWithOpts(ctx, store, ObjectOptions{})
}

func (r *rebalanceMeta) loadWithOpts(ctx context.Context, store objectIO, opts ObjectOptions) error {
	data, _, err := readConfigWithMetadata(ctx, store, rebalMetaName, opts)
	if err != nil {
		return err
	}

	if len(data) == 0 {
		return nil
	}
	if len(data) <= 4 {
		return fmt.Errorf("rebalanceMeta: no data")
	}