113 lines
3.2 KiB
Go
113 lines
3.2 KiB
Go
package transfer
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import (
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"context"
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"math/big"
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"sync"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/log"
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"github.com/status-im/status-go/rpc/chain"
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"github.com/status-im/status-go/services/wallet/async"
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"github.com/status-im/status-go/services/wallet/token"
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"github.com/status-im/status-go/services/wallet/walletevent"
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"github.com/status-im/status-go/transactions"
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)
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func NewSequentialFetchStrategy(db *Database, blockDAO *BlockDAO, feed *event.Feed,
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transactionManager *TransactionManager, pendingTxManager *transactions.PendingTxTracker,
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tokenManager *token.Manager,
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chainClients map[uint64]*chain.ClientWithFallback,
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accounts []common.Address) *SequentialFetchStrategy {
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return &SequentialFetchStrategy{
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db: db,
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blockDAO: blockDAO,
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feed: feed,
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transactionManager: transactionManager,
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pendingTxManager: pendingTxManager,
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tokenManager: tokenManager,
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chainClients: chainClients,
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accounts: accounts,
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}
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}
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type SequentialFetchStrategy struct {
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db *Database
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blockDAO *BlockDAO
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feed *event.Feed
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mu sync.Mutex
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group *async.Group
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transactionManager *TransactionManager
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pendingTxManager *transactions.PendingTxTracker
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tokenManager *token.Manager
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chainClients map[uint64]*chain.ClientWithFallback
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accounts []common.Address
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}
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func (s *SequentialFetchStrategy) newCommand(chainClient *chain.ClientWithFallback,
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account common.Address) async.Commander {
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return newLoadBlocksAndTransfersCommand(account, s.db, s.blockDAO, chainClient, s.feed,
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s.transactionManager, s.pendingTxManager, s.tokenManager)
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}
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func (s *SequentialFetchStrategy) start() error {
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s.mu.Lock()
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defer s.mu.Unlock()
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if s.group != nil {
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return errAlreadyRunning
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}
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s.group = async.NewGroup(context.Background())
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if s.feed != nil {
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s.feed.Send(walletevent.Event{
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Type: EventFetchingRecentHistory,
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Accounts: s.accounts,
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})
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}
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for _, chainClient := range s.chainClients {
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for _, address := range s.accounts {
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ctl := s.newCommand(chainClient, address)
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s.group.Add(ctl.Command())
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}
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}
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return nil
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}
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// Stop stops reactor loop and waits till it exits.
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func (s *SequentialFetchStrategy) stop() {
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s.mu.Lock()
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defer s.mu.Unlock()
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if s.group == nil {
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return
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}
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s.group.Stop()
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s.group.Wait()
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s.group = nil
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}
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func (s *SequentialFetchStrategy) kind() FetchStrategyType {
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return SequentialFetchStrategyType
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}
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// TODO: remove fetchMore parameter from here and interface, it is used by OnDemandFetchStrategy only
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func (s *SequentialFetchStrategy) getTransfersByAddress(ctx context.Context, chainID uint64, address common.Address, toBlock *big.Int,
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limit int64, fetchMore bool) ([]Transfer, error) {
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log.Info("[WalletAPI:: GetTransfersByAddress] get transfers for an address", "address", address, "fetchMore", fetchMore,
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"chainID", chainID, "toBlock", toBlock, "limit", limit)
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rst, err := s.db.GetTransfersByAddress(chainID, address, toBlock, limit)
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if err != nil {
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log.Error("[WalletAPI:: GetTransfersByAddress] can't fetch transfers", "err", err)
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return nil, err
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}
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return rst, nil
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}
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