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117 lines
3.3 KiB
Go
117 lines
3.3 KiB
Go
package loopd
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import (
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"context"
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"fmt"
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"github.com/btcsuite/btcd/btcutil"
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"github.com/lightninglabs/lndclient"
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"github.com/lightninglabs/loop"
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"github.com/lightninglabs/loop/liquidity"
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"github.com/lightninglabs/loop/loopdb"
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"github.com/lightninglabs/loop/swap"
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"github.com/lightningnetwork/lnd/clock"
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"github.com/lightningnetwork/lnd/ticker"
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)
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// getClient returns an instance of the swap client.
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func getClient(cfg *Config, lnd *lndclient.LndServices) (*loop.Client,
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func(), error) {
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clientConfig := &loop.ClientConfig{
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ServerAddress: cfg.Server.Host,
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ProxyAddress: cfg.Server.Proxy,
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SwapServerNoTLS: cfg.Server.NoTLS,
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TLSPathServer: cfg.Server.TLSPath,
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Lnd: lnd,
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MaxLsatCost: btcutil.Amount(cfg.MaxLSATCost),
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MaxLsatFee: btcutil.Amount(cfg.MaxLSATFee),
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LoopOutMaxParts: cfg.LoopOutMaxParts,
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TotalPaymentTimeout: cfg.TotalPaymentTimeout,
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MaxPaymentRetries: cfg.MaxPaymentRetries,
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}
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// Now that we know where the database will live, we'll go ahead and
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// open up the default implementation of it.
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var (
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db loopdb.SwapStore
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err error
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)
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switch cfg.DatabaseBackend {
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case DatabaseBackendSqlite:
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log.Infof("Opening sqlite3 database at: %v",
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cfg.Sqlite.DatabaseFileName)
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db, err = loopdb.NewSqliteStore(
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cfg.Sqlite, clientConfig.Lnd.ChainParams,
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)
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case DatabaseBackendPostgres:
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log.Infof("Opening postgres database at: %v",
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cfg.Postgres.DSN(true))
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db, err = loopdb.NewPostgresStore(
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cfg.Postgres, clientConfig.Lnd.ChainParams,
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)
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default:
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return nil, nil, fmt.Errorf("unknown database backend: %s",
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cfg.DatabaseBackend)
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}
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if err != nil {
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return nil, nil, fmt.Errorf("unable to open database: %v", err)
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}
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swapClient, cleanUp, err := loop.NewClient(
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cfg.DataDir, db, clientConfig,
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)
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if err != nil {
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return nil, nil, err
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}
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return swapClient, cleanUp, nil
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}
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func getLiquidityManager(client *loop.Client) *liquidity.Manager {
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mngrCfg := &liquidity.Config{
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AutoloopTicker: ticker.NewForce(liquidity.DefaultAutoloopTicker),
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LoopOut: client.LoopOut,
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LoopIn: client.LoopIn,
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Restrictions: func(ctx context.Context, swapType swap.Type,
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initiator string) (*liquidity.Restrictions, error) {
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if swapType == swap.TypeOut {
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outTerms, err := client.Server.GetLoopOutTerms(ctx, initiator)
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if err != nil {
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return nil, err
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}
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return liquidity.NewRestrictions(
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outTerms.MinSwapAmount, outTerms.MaxSwapAmount,
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), nil
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}
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inTerms, err := client.Server.GetLoopInTerms(ctx, initiator)
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if err != nil {
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return nil, err
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}
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return liquidity.NewRestrictions(
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inTerms.MinSwapAmount, inTerms.MaxSwapAmount,
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), nil
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},
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Lnd: client.LndServices,
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Clock: clock.NewDefaultClock(),
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LoopOutQuote: client.LoopOutQuote,
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LoopInQuote: client.LoopInQuote,
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ListLoopOut: client.Store.FetchLoopOutSwaps,
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GetLoopOut: client.Store.FetchLoopOutSwap,
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ListLoopIn: client.Store.FetchLoopInSwaps,
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LoopInTerms: client.LoopInTerms,
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LoopOutTerms: client.LoopOutTerms,
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MinimumConfirmations: minConfTarget,
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PutLiquidityParams: client.Store.PutLiquidityParams,
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FetchLiquidityParams: client.Store.FetchLiquidityParams,
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}
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return liquidity.NewManager(mngrCfg)
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}
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