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keeper.go
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/
keeper.go
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package keeper
import (
"context"
"fmt"
"github.com/celestiaorg/celestia-app/v2/x/blob/types"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
"github.com/tendermint/tendermint/libs/log"
)
const (
payForBlobGasDescriptor = "pay for blob"
)
// Keeper handles all the state changes for the blob module.
type Keeper struct {
cdc codec.BinaryCodec
paramStore paramtypes.Subspace
}
func NewKeeper(
cdc codec.BinaryCodec,
ps paramtypes.Subspace,
) *Keeper {
if !ps.HasKeyTable() {
ps = ps.WithKeyTable(types.ParamKeyTable())
}
return &Keeper{
cdc: cdc,
paramStore: ps,
}
}
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", fmt.Sprintf("x/%s", types.ModuleName))
}
// PayForBlobs consumes gas based on the blob sizes in the MsgPayForBlobs.
func (k Keeper) PayForBlobs(goCtx context.Context, msg *types.MsgPayForBlobs) (*types.MsgPayForBlobsResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
gasToConsume := types.GasToConsume(msg.BlobSizes, k.GasPerBlobByte(ctx))
ctx.GasMeter().ConsumeGas(gasToConsume, payForBlobGasDescriptor)
err := ctx.EventManager().EmitTypedEvent(
types.NewPayForBlobsEvent(msg.Signer, msg.BlobSizes, msg.Namespaces),
)
if err != nil {
return &types.MsgPayForBlobsResponse{}, err
}
return &types.MsgPayForBlobsResponse{}, nil
}