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keeper.go
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keeper.go
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package keeper
import (
"fmt"
"github.com/cosmos/cosmos-sdk/codec"
storetypes "github.com/cosmos/cosmos-sdk/store/types"
sdk "github.com/cosmos/cosmos-sdk/types"
errortypes "github.com/cosmos/cosmos-sdk/types/errors"
banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
"github.com/ethereum/go-ethereum/common"
"github.com/tendermint/tendermint/libs/log"
"github.com/functionx/fx-core/v7/contract"
crosschaintypes "github.com/functionx/fx-core/v7/x/crosschain/types"
"github.com/functionx/fx-core/v7/x/erc20/types"
)
// Keeper of this module maintains collections of erc20.
type Keeper struct {
storeKey storetypes.StoreKey
cdc codec.BinaryCodec
accountKeeper types.AccountKeeper
bankKeeper types.BankKeeper
evmKeeper types.EVMKeeper
ibcTransferKeeper types.IBCTransferKeeper
moduleAddress common.Address
authority string
chainsName []string
}
// NewKeeper creates new instances of the erc20 Keeper
func NewKeeper(
storeKey storetypes.StoreKey,
cdc codec.BinaryCodec,
ak types.AccountKeeper,
bk types.BankKeeper,
evmKeeper types.EVMKeeper,
ibcTransferKeeper types.IBCTransferKeeper,
authority string,
) Keeper {
moduleAddress := ak.GetModuleAddress(types.ModuleName)
if moduleAddress == nil {
panic(fmt.Sprintf("%s module account has not been set", types.ModuleName))
}
return Keeper{
storeKey: storeKey,
cdc: cdc,
accountKeeper: ak,
bankKeeper: bk,
evmKeeper: evmKeeper,
ibcTransferKeeper: ibcTransferKeeper,
moduleAddress: common.BytesToAddress(moduleAddress),
authority: authority,
chainsName: crosschaintypes.GetSupportChains(),
}
}
func (k Keeper) GetAuthority() string {
return k.authority
}
// Logger returns a module-specific logger.
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", "x/"+types.ModuleName)
}
// ModuleAddress return erc20 module address
func (k Keeper) ModuleAddress() common.Address {
return k.moduleAddress
}
// TransferAfter ibc transfer after
func (k Keeper) TransferAfter(ctx sdk.Context, sender sdk.AccAddress, receive string, coin, fee sdk.Coin, _, _ bool) error {
if err := contract.ValidateEthereumAddress(receive); err != nil {
return errortypes.ErrInvalidAddress.Wrapf("invalid receive address: %s", err.Error())
}
_, err := k.ConvertCoin(sdk.WrapSDKContext(ctx), &types.MsgConvertCoin{
Coin: coin.Add(fee),
Receiver: receive,
Sender: sender.String(),
})
return err
}
func (k Keeper) HasDenomAlias(ctx sdk.Context, denom string) (banktypes.Metadata, bool) {
md, found := k.bankKeeper.GetDenomMetaData(ctx, denom)
// not register metadata
if !found {
return banktypes.Metadata{}, false
}
// not have denom units
if len(md.DenomUnits) == 0 {
return banktypes.Metadata{}, false
}
// not have alias
if len(md.DenomUnits[0].Aliases) == 0 {
return banktypes.Metadata{}, false
}
return md, true
}
func (k Keeper) GetValidMetadata(ctx sdk.Context, denom string) (banktypes.Metadata, bool) {
md, found := k.bankKeeper.GetDenomMetaData(ctx, denom)
// not register metadata
if !found {
return banktypes.Metadata{}, false
}
// not have denom units
if len(md.DenomUnits) == 0 {
return banktypes.Metadata{}, false
}
return md, true
}