/
icacallbacks_rebalance.go
93 lines (82 loc) · 3.36 KB
/
icacallbacks_rebalance.go
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package keeper
import (
"fmt"
"github.com/Stride-Labs/stride/v3/x/icacallbacks"
icacallbackstypes "github.com/Stride-Labs/stride/v3/x/icacallbacks/types"
"github.com/Stride-Labs/stride/v3/x/stakeibc/types"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
channeltypes "github.com/cosmos/ibc-go/v3/modules/core/04-channel/types"
"github.com/golang/protobuf/proto" //nolint:staticcheck
)
func (k Keeper) MarshalRebalanceCallbackArgs(ctx sdk.Context, rebalanceCallback types.RebalanceCallback) ([]byte, error) {
out, err := proto.Marshal(&rebalanceCallback)
if err != nil {
k.Logger(ctx).Error(fmt.Sprintf("MarshalRebalanceCallbackArgs %v", err.Error()))
return nil, err
}
return out, nil
}
func (k Keeper) UnmarshalRebalanceCallbackArgs(ctx sdk.Context, rebalanceCallback []byte) (*types.RebalanceCallback, error) {
unmarshalledRebalanceCallback := types.RebalanceCallback{}
if err := proto.Unmarshal(rebalanceCallback, &unmarshalledRebalanceCallback); err != nil {
k.Logger(ctx).Error(fmt.Sprintf("UnmarshalRebalanceCallbackArgs %v", err.Error()))
return nil, err
}
return &unmarshalledRebalanceCallback, nil
}
func RebalanceCallback(k Keeper, ctx sdk.Context, packet channeltypes.Packet, ack *channeltypes.Acknowledgement, args []byte) error {
k.Logger(ctx).Info("RebalanceCallback executing", "packet", packet)
if ack == nil {
// timeout
k.Logger(ctx).Error(fmt.Sprintf("RebalanceCallback timeout, ack is nil, packet %v", packet))
return nil
}
txMsgData, err := icacallbacks.GetTxMsgData(ctx, *ack, k.Logger(ctx))
if err != nil {
k.Logger(ctx).Error(fmt.Sprintf("failed to fetch txMsgData, packet %v", packet))
return sdkerrors.Wrap(icacallbackstypes.ErrTxMsgData, err.Error())
}
if len(txMsgData.Data) == 0 {
// failed transaction
k.Logger(ctx).Error(fmt.Sprintf("RebalanceCallback tx failed, ack is empty (ack error), packet %v", packet))
return nil
}
// deserialize the args
rebalanceCallback, err := k.UnmarshalRebalanceCallbackArgs(ctx, args)
if err != nil {
errMsg := fmt.Sprintf("Unable to unmarshal rebalance callback args | %s", err.Error())
k.Logger(ctx).Error(errMsg)
return sdkerrors.Wrapf(types.ErrUnmarshalFailure, errMsg)
}
k.Logger(ctx).Info(fmt.Sprintf("RebalanceCallback %v", rebalanceCallback))
hostZone := rebalanceCallback.GetHostZoneId()
zone, found := k.GetHostZone(ctx, hostZone)
if !found {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidRequest, "host zone not found %s", hostZone)
}
// update the host zone
rebalancings := rebalanceCallback.GetRebalancings()
// assemble a map from validatorAddress -> validator
valAddrMap := make(map[string]*types.Validator)
for _, val := range zone.GetValidators() {
valAddrMap[val.GetAddress()] = val
}
for _, rebalancing := range rebalancings {
srcValidator := rebalancing.GetSrcValidator()
dstValidator := rebalancing.GetDstValidator()
amt := rebalancing.GetAmt()
if _, valFound := valAddrMap[srcValidator]; valFound {
valAddrMap[srcValidator].DelegationAmt -= amt
} else {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidRequest, "validator not found %s", srcValidator)
}
if _, valFound := valAddrMap[dstValidator]; valFound {
valAddrMap[dstValidator].DelegationAmt += amt
} else {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidRequest, "validator not found %s", dstValidator)
}
}
k.SetHostZone(ctx, zone)
return nil
}