99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
// Copyright 2020 Coinbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package services
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import (
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"context"
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"github.com/lbryio/rosetta-lbry/configuration"
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"github.com/coinbase/rosetta/server"
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"github.com/coinbase/rosetta/types"
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)
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// AccountAPIService implements the server.AccountAPIServicer interface.
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type AccountAPIService struct {
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config *configuration.Configuration
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i Indexer
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}
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// NewAccountAPIService returns a new *AccountAPIService.
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func NewAccountAPIService(
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config *configuration.Configuration,
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i Indexer,
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) server.AccountAPIServicer {
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return &AccountAPIService{
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config: config,
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i: i,
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}
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}
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// AccountBalance implements /account/balance.
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func (s *AccountAPIService) AccountBalance(
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ctx context.Context,
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request *types.AccountBalanceRequest,
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) (*types.AccountBalanceResponse, *types.Error) {
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if s.config.Mode != configuration.Online {
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return nil, wrapErr(ErrUnavailableOffline, nil)
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}
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// If we are fetching the current balance,
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// return all coins for an address and calculate
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// the balance from those coins.
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if request.BlockIdentifier == nil {
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coins, block, err := s.i.GetCoins(ctx, request.AccountIdentifier)
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if err != nil {
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return nil, wrapErr(ErrUnableToGetCoins, err)
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}
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balance := "0"
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for _, coin := range coins {
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balance, err = types.AddValues(balance, coin.Amount.Value)
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if err != nil {
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return nil, wrapErr(ErrUnableToParseIntermediateResult, err)
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}
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}
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return &types.AccountBalanceResponse{
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BlockIdentifier: block,
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Coins: coins,
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Balances: []*types.Amount{
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{
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Value: balance,
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Currency: s.config.Currency,
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},
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},
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}, nil
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}
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// If we are fetching a historical balance,
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// use balance storage and don't return coins.
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amount, block, err := s.i.GetBalance(
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ctx,
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request.AccountIdentifier,
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s.config.Currency,
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request.BlockIdentifier,
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)
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if err != nil {
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return nil, wrapErr(ErrUnableToGetBalance, err)
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}
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return &types.AccountBalanceResponse{
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BlockIdentifier: block,
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Balances: []*types.Amount{
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amount,
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},
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}, nil
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}
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