forked from coinbase/mesh-bitcoin
/
balance_storage_helper.go
85 lines (73 loc) · 2.37 KB
/
balance_storage_helper.go
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// 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"
"errors"
"math/big"
"github.com/coinbase/rosetta-sdk-go/asserter"
"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.BalanceStorageHelper = (*BalanceStorageHelper)(nil)
var (
errNotImplemented = errors.New("not implemented")
)
// BalanceStorageHelper implements storage.BalanceStorageHelper.
type BalanceStorageHelper struct {
a *asserter.Asserter
}
// AccountBalance attempts to fetch the balance
// for a missing account in storage.
func (h *BalanceStorageHelper) AccountBalance(
ctx context.Context,
account *types.AccountIdentifier,
currency *types.Currency,
block *types.BlockIdentifier,
) (*types.Amount, error) {
return &types.Amount{
Value: zeroValue,
Currency: currency,
}, nil
}
// Asserter returns a *asserter.Asserter.
func (h *BalanceStorageHelper) Asserter() *asserter.Asserter {
return h.a
}
// BalanceExemptions returns a list of *types.BalanceExemption.
func (h *BalanceStorageHelper) BalanceExemptions() []*types.BalanceExemption {
return []*types.BalanceExemption{}
}
// ExemptFunc returns a parser.ExemptOperation.
func (h *BalanceStorageHelper) ExemptFunc() parser.ExemptOperation {
return func(op *types.Operation) bool {
return false
}
}
// AccountsReconciled returns the total accounts reconciled by count.
func (h *BalanceStorageHelper) AccountsReconciled(
ctx context.Context,
dbTx database.Transaction,
) (*big.Int, error) {
return nil, errNotImplemented
}
// AccountsSeen returns the total accounts seen by count.
func (h *BalanceStorageHelper) AccountsSeen(
ctx context.Context,
dbTx database.Transaction,
) (*big.Int, error) {
return nil, errNotImplemented
}