cic-custodial/internal/tasker/task/system.go
2022-12-01 13:07:22 +00:00

269 lines
6.2 KiB
Go

package task
import (
"context"
"encoding/json"
"fmt"
"math/big"
"github.com/bsm/redislock"
celo "github.com/grassrootseconomics/cic-celo-sdk"
"github.com/grassrootseconomics/cic-custodial/internal/nonce"
"github.com/grassrootseconomics/cic-custodial/internal/tasker"
"github.com/grassrootseconomics/w3-celo-patch"
"github.com/grassrootseconomics/w3-celo-patch/module/eth"
"github.com/hibiken/asynq"
)
type SystemPayload struct {
PublicKey string `json:"publicKey"`
}
func PrepareAccount(
nonceProvider nonce.Noncestore,
taskerClient *tasker.TaskerClient,
) func(context.Context, *asynq.Task) error {
return func(ctx context.Context, t *asynq.Task) error {
var p SystemPayload
if err := json.Unmarshal(t.Payload(), &p); err != nil {
return fmt.Errorf("json.Unmarshal failed: %v: %w", err, asynq.SkipRetry)
}
if err := nonceProvider.SetNewAccountNonce(ctx, p.PublicKey); err != nil {
return err
}
_, err := taskerClient.CreateTask(
tasker.GiftGasTask,
tasker.DefaultPriority,
&tasker.Task{
Payload: t.Payload(),
},
)
if err != nil {
return err
}
_, err = taskerClient.CreateTask(
tasker.GiftTokenTask,
tasker.DefaultPriority,
&tasker.Task{
Payload: t.Payload(),
},
)
if err != nil {
return err
}
return nil
}
}
func GiftGasProcessor(
celoProvider *celo.Provider,
nonceProvider nonce.Noncestore,
lockProvider *redislock.Client,
system *tasker.SystemContainer,
taskerClient *tasker.TaskerClient,
) func(context.Context, *asynq.Task) error {
return func(ctx context.Context, t *asynq.Task) error {
var p SystemPayload
if err := json.Unmarshal(t.Payload(), &p); err != nil {
return fmt.Errorf("json.Unmarshal failed: %v: %w", err, asynq.SkipRetry)
}
lock, err := lockProvider.Obtain(ctx, system.LockPrefix+system.PublicKey, system.LockTimeout, nil)
if err != nil {
return err
}
defer lock.Release(ctx)
nonce, err := nonceProvider.Acquire(ctx, system.PublicKey)
if err != nil {
return err
}
builtTx, err := celoProvider.SignGasTransferTx(
system.PrivateKey,
celo.GasTransferTxOpts{
To: w3.A(p.PublicKey),
Nonce: nonce,
Value: system.GiftableGasValue,
GasPrice: celo.FixedMinGas,
},
)
if err != nil {
if err := nonceProvider.Return(ctx, p.PublicKey); err != nil {
return err
}
return fmt.Errorf("nonce.Return failed: %v: %w", err, asynq.SkipRetry)
}
disptachJobPayload, err := json.Marshal(TxPayload{
Tx: builtTx,
})
if err != nil {
return fmt.Errorf("json.Marshal failed: %v: %w", err, asynq.SkipRetry)
}
_, err = taskerClient.CreateTask(
tasker.TxDispatchTask,
tasker.HighPriority,
&tasker.Task{
Payload: disptachJobPayload,
},
)
if err != nil {
return err
}
return nil
}
}
func GiftTokenProcessor(
celoProvider *celo.Provider,
nonceProvider nonce.Noncestore,
lockProvider *redislock.Client,
system *tasker.SystemContainer,
taskerClient *tasker.TaskerClient,
) func(context.Context, *asynq.Task) error {
return func(ctx context.Context, t *asynq.Task) error {
var p SystemPayload
if err := json.Unmarshal(t.Payload(), &p); err != nil {
return fmt.Errorf("json.Unmarshal failed: %v: %w", err, asynq.SkipRetry)
}
publicKey := w3.A(p.PublicKey)
lock, err := lockProvider.Obtain(ctx, system.LockPrefix+system.PublicKey, system.LockTimeout, nil)
if err != nil {
return err
}
defer lock.Release(ctx)
nonce, err := nonceProvider.Acquire(ctx, system.PublicKey)
if err != nil {
return err
}
input, err := system.Abis["mint"].EncodeArgs(publicKey, system.GiftableTokenValue)
if err != nil {
return fmt.Errorf("ABI encode failed %v: %w", err, asynq.SkipRetry)
}
builtTx, err := celoProvider.SignContractExecutionTx(
system.PrivateKey,
celo.ContractExecutionTxOpts{
ContractAddress: system.GiftableToken,
InputData: input,
GasPrice: celo.FixedMinGas,
GasLimit: system.TokenTransferGasLimit,
Nonce: nonce,
},
)
if err != nil {
if err := nonceProvider.Return(ctx, p.PublicKey); err != nil {
return err
}
return fmt.Errorf("nonce.Return failed: %v: %w", err, asynq.SkipRetry)
}
disptachJobPayload, err := json.Marshal(TxPayload{
Tx: builtTx,
})
if err != nil {
return fmt.Errorf("json.Marshal failed: %v: %w", err, asynq.SkipRetry)
}
_, err = taskerClient.CreateTask(
tasker.TxDispatchTask,
tasker.HighPriority,
&tasker.Task{
Payload: disptachJobPayload,
},
)
if err != nil {
return err
}
return nil
}
}
func RefillGasProcessor(
celoProvider *celo.Provider,
nonceProvider nonce.Noncestore,
lockProvider *redislock.Client,
system *tasker.SystemContainer,
taskerClient *tasker.TaskerClient,
) func(context.Context, *asynq.Task) error {
return func(ctx context.Context, t *asynq.Task) error {
var (
p SystemPayload
balance big.Int
)
if err := json.Unmarshal(t.Payload(), &p); err != nil {
return fmt.Errorf("json.Unmarshal failed: %v: %w", err, asynq.SkipRetry)
}
if err := celoProvider.Client.CallCtx(
ctx,
eth.Balance(w3.A(p.PublicKey), nil).Returns(&balance),
); err != nil {
return err
}
if belowThreshold := balance.Cmp(system.GasRefillThreshold); belowThreshold > 0 {
return nil
}
lock, err := lockProvider.Obtain(ctx, system.LockPrefix+system.PublicKey, system.LockTimeout, nil)
if err != nil {
return err
}
defer lock.Release(ctx)
nonce, err := nonceProvider.Acquire(ctx, system.PublicKey)
if err != nil {
return err
}
builtTx, err := celoProvider.SignGasTransferTx(
system.PrivateKey,
celo.GasTransferTxOpts{
To: w3.A(p.PublicKey),
Nonce: nonce,
Value: system.GasRefillValue,
GasPrice: celo.FixedMinGas,
},
)
if err != nil {
if err := nonceProvider.Return(ctx, p.PublicKey); err != nil {
return err
}
return fmt.Errorf("nonce.Return failed: %v: %w", err, asynq.SkipRetry)
}
disptachJobPayload, err := json.Marshal(TxPayload{
Tx: builtTx,
})
if err != nil {
return fmt.Errorf("json.Marshal failed: %v: %w", err, asynq.SkipRetry)
}
_, err = taskerClient.CreateTask(
tasker.TxDispatchTask,
tasker.HighPriority,
&tasker.Task{
Payload: disptachJobPayload,
},
)
if err != nil {
return err
}
return nil
}
}