2023-02-20 10:56:30 +01:00
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package task
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import (
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"context"
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"encoding/json"
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"fmt"
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"math/big"
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"github.com/celo-org/celo-blockchain/common/hexutil"
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"github.com/grassrootseconomics/celoutils"
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"github.com/grassrootseconomics/cic-custodial/internal/custodial"
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"github.com/grassrootseconomics/cic-custodial/internal/events"
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"github.com/grassrootseconomics/cic-custodial/internal/store"
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"github.com/grassrootseconomics/cic-custodial/internal/tasker"
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2023-02-21 18:34:22 +01:00
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"github.com/grassrootseconomics/cic-custodial/pkg/enum"
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2023-02-20 10:56:30 +01:00
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"github.com/grassrootseconomics/w3-celo-patch"
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"github.com/hibiken/asynq"
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)
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type (
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TransferPayload struct {
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TrackingId string `json:"trackingId"`
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From string `json:"from" `
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To string `json:"to"`
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VoucherAddress string `json:"voucherAddress"`
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2023-02-21 18:34:22 +01:00
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Amount uint64 `json:"amount"`
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2023-02-20 10:56:30 +01:00
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}
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transferEventPayload struct {
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DispatchTaskId string `json:"dispatchTaskId"`
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OTXId uint `json:"otxId"`
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TrackingId string `json:"trackingId"`
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TxHash string `json:"txHash"`
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}
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)
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func SignTransfer(cu *custodial.Custodial) func(context.Context, *asynq.Task) error {
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return func(ctx context.Context, t *asynq.Task) error {
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var (
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2023-03-01 18:13:23 +01:00
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err error
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2023-02-20 10:56:30 +01:00
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payload TransferPayload
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)
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if err := json.Unmarshal(t.Payload(), &payload); err != nil {
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return fmt.Errorf("account: failed %v: %w", err, asynq.SkipRetry)
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}
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lock, err := cu.LockProvider.Obtain(
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ctx,
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cu.SystemContainer.LockPrefix+payload.From,
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cu.SystemContainer.LockTimeout,
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nil,
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)
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if err != nil {
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return err
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}
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defer lock.Release(ctx)
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key, err := cu.Keystore.LoadPrivateKey(ctx, payload.From)
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if err != nil {
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return err
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}
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nonce, err := cu.Noncestore.Acquire(ctx, payload.From)
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if err != nil {
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return err
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}
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defer func() {
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if err != nil {
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if nErr := cu.Noncestore.Return(ctx, cu.SystemContainer.PublicKey); nErr != nil {
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err = nErr
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}
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}
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}()
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2023-02-21 18:34:22 +01:00
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input, err := cu.SystemContainer.Abis["transfer"].EncodeArgs(w3.A(payload.To), new(big.Int).SetUint64(payload.Amount))
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2023-02-20 10:56:30 +01:00
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if err != nil {
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return err
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}
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// TODO: Review gas params.
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builtTx, err := cu.CeloProvider.SignContractExecutionTx(
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key,
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celoutils.ContractExecutionTxOpts{
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ContractAddress: w3.A(payload.VoucherAddress),
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InputData: input,
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GasFeeCap: celoutils.SafeGasFeeCap,
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GasTipCap: celoutils.SafeGasTipCap,
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GasLimit: cu.SystemContainer.TokenTransferGasLimit,
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Nonce: nonce,
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},
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)
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if err != nil {
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return err
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}
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rawTx, err := builtTx.MarshalBinary()
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if err != nil {
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return err
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}
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2023-02-21 18:34:22 +01:00
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id, err := cu.PgStore.CreateOtx(ctx, store.OTX{
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TrackingId: payload.TrackingId,
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Type: enum.TRANSFER_VOUCHER,
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RawTx: hexutil.Encode(rawTx),
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TxHash: builtTx.Hash().Hex(),
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From: payload.From,
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Data: hexutil.Encode(builtTx.Data()),
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GasPrice: builtTx.GasPrice().Uint64(),
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GasLimit: builtTx.Gas(),
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TransferValue: payload.Amount,
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Nonce: builtTx.Nonce(),
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2023-02-20 10:56:30 +01:00
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})
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if err != nil {
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return err
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}
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disptachJobPayload, err := json.Marshal(TxPayload{
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OtxId: id,
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Tx: builtTx,
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})
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if err != nil {
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return err
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}
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_, err = cu.TaskerClient.CreateTask(
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ctx,
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2023-02-20 10:56:30 +01:00
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tasker.DispatchTxTask,
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tasker.HighPriority,
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&tasker.Task{
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Payload: disptachJobPayload,
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},
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)
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if err != nil {
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return err
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}
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gasRefillPayload, err := json.Marshal(AccountPayload{
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PublicKey: payload.From,
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})
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if err != nil {
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return err
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}
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_, err = cu.TaskerClient.CreateTask(
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2023-02-24 17:46:46 +01:00
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ctx,
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2023-02-20 10:56:30 +01:00
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tasker.AccountRefillGasTask,
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tasker.DefaultPriority,
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&tasker.Task{
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Payload: gasRefillPayload,
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},
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)
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if err != nil {
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return err
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}
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eventPayload := &transferEventPayload{
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OTXId: id,
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TrackingId: payload.TrackingId,
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TxHash: builtTx.Hash().Hex(),
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}
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if err := cu.EventEmitter.Publish(
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events.SignTransfer,
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builtTx.Hash().Hex(),
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eventPayload,
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); err != nil {
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return err
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}
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return nil
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}
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}
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