// Copyright 2020 Coinbase, Inc.
//
// 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 indexer

import (
	"context"

	"github.com/coinbase/rosetta-sdk-go/parser"
	"github.com/coinbase/rosetta-sdk-go/storage/database"
	"github.com/coinbase/rosetta-sdk-go/storage/modules"
	"github.com/coinbase/rosetta-sdk-go/types"
)

var _ modules.BalanceStorageHandler = (*BalanceStorageHandler)(nil)

// BalanceStorageHandler implements storage.BalanceStorageHandler.
type BalanceStorageHandler struct{}

// BlockAdded is called whenever a block is committed to BlockStorage.
func (h *BalanceStorageHandler) BlockAdded(
	ctx context.Context,
	block *types.Block,
	changes []*parser.BalanceChange,
) error {
	return nil
}

// BlockRemoved is called whenever a block is removed from BlockStorage.
func (h *BalanceStorageHandler) BlockRemoved(
	ctx context.Context,
	block *types.Block,
	changes []*parser.BalanceChange,
) error {
	return nil
}

// AccountsReconciled updates the total accounts reconciled by count.
func (h *BalanceStorageHandler) AccountsReconciled(
	ctx context.Context,
	dbTx database.Transaction,
	count int,
) error {
	return nil
}

// AccountsSeen updates the total accounts seen by count.
func (h *BalanceStorageHandler) AccountsSeen(
	ctx context.Context,
	dbTx database.Transaction,
	count int,
) error {
	return nil
}