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keeper.go
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keeper.go
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package keeper
import (
"fmt"
ibctypes "github.com/cosmos/ibc-go/v6/modules/apps/transfer/types"
"github.com/tendermint/tendermint/libs/log"
"github.com/dymensionxyz/dymension-rdk/x/hub-genesis/types"
"github.com/cosmos/cosmos-sdk/codec"
storetypes "github.com/cosmos/cosmos-sdk/store/types"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
)
type (
Keeper struct {
cdc codec.BinaryCodec
storeKey storetypes.StoreKey
paramstore paramtypes.Subspace
channelKeeper types.ChannelKeeper
bankKeeper types.BankKeeper
accountKeeper types.AccountKeeper
}
)
func NewKeeper(
cdc codec.BinaryCodec,
storeKey storetypes.StoreKey,
ps paramtypes.Subspace,
channelKeeper types.ChannelKeeper,
bankKeeper types.BankKeeper,
accountKeeper types.AccountKeeper,
) Keeper {
// set KeyTable if it has not already been set
if !ps.HasKeyTable() {
table := types.ParamKeyTable()
ps = ps.WithKeyTable(table)
}
return Keeper{
cdc: cdc,
storeKey: storeKey,
paramstore: ps,
channelKeeper: channelKeeper,
bankKeeper: bankKeeper,
accountKeeper: accountKeeper,
}
}
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", fmt.Sprintf("x/%s", types.ModuleName))
}
// lock coins by sending them to an escrow address
func (k Keeper) lockRollappGenesisTokens(ctx sdk.Context, sourceChannel string, tokens sdk.Coins) error {
// get spendable coins in the module account
account := k.accountKeeper.GetModuleAccount(ctx, types.ModuleName)
spendable := k.bankKeeper.SpendableCoins(ctx, account.GetAddress())
// validate it's enough for the required tokens
if !spendable.IsAllGTE(tokens) {
return types.ErrGenesisInsufficientBalance
}
escrowAddress := ibctypes.GetEscrowAddress("transfer", sourceChannel)
return k.bankKeeper.SendCoinsFromModuleToAccount(ctx, types.ModuleName, escrowAddress, tokens)
}