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keeper.go
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keeper.go
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package internft
import (
"github.com/cometbft/cometbft/libs/log"
"github.com/cosmos/cosmos-sdk/codec"
codectypes "github.com/cosmos/cosmos-sdk/codec/types"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/nft"
nfttransfer "github.com/bianjieai/nft-transfer/types"
irismodnftkeeper "github.com/irisnet/irismod/modules/nft/keeper"
"github.com/irisnet/irismod/modules/nft/types"
)
// NewInterNftKeeper creates a new ics721 Keeper instance
func NewInterNftKeeper(cdc codec.Codec,
k irismodnftkeeper.Keeper,
ak AccountKeeper,
) InterNftKeeper {
return InterNftKeeper{
nk: k.NFTkeeper(),
cdc: cdc,
ak: ak,
cb: types.NewClassBuilder(cdc, ak.GetModuleAddress),
tb: types.NewTokenBuilder(cdc),
}
}
// CreateOrUpdateClass implement the method of ICS721Keeper.CreateOrUpdateClass
func (ik InterNftKeeper) CreateOrUpdateClass(ctx sdk.Context,
classID,
classURI,
classData string,
) error {
var (
class nft.Class
err error
)
if len(classData) != 0 {
class, err = ik.cb.Build(classID, classURI, classData)
if err != nil {
return err
}
} else {
var denomMetadata = &types.DenomMetadata{
Creator: ik.ak.GetModuleAddress(types.ModuleName).String(),
MintRestricted: true,
UpdateRestricted: true,
}
metadata, err := codectypes.NewAnyWithValue(denomMetadata)
if err != nil {
return err
}
class = nft.Class{
Id: classID,
Uri: classURI,
Data: metadata,
}
}
if ik.nk.HasClass(ctx, classID) {
return ik.nk.UpdateClass(ctx, class)
}
return ik.nk.SaveClass(ctx, class)
}
// Mint implement the method of ICS721Keeper.Mint
func (ik InterNftKeeper) Mint(ctx sdk.Context,
classID,
tokenID,
tokenURI,
tokenData string,
receiver sdk.AccAddress,
) error {
token, err := ik.tb.Build(classID, tokenID, tokenURI, tokenData)
if err != nil {
return err
}
return ik.nk.Mint(ctx, token, receiver)
}
// Transfer implement the method of ICS721Keeper.Transfer
func (ik InterNftKeeper) Transfer(
ctx sdk.Context,
classID,
tokenID,
tokenData string,
receiver sdk.AccAddress,
) error {
if err := ik.nk.Transfer(ctx, classID, tokenID, receiver); err != nil {
return err
}
if len(tokenData) == 0 {
return nil
}
nft, _ := ik.nk.GetNFT(ctx, classID, tokenID)
token, err := ik.tb.Build(classID, tokenID, nft.Uri, tokenData)
if err != nil {
return err
}
return ik.nk.Update(ctx, token)
}
// GetClass implement the method of ICS721Keeper.GetClass
func (ik InterNftKeeper) GetClass(ctx sdk.Context, classID string) (nfttransfer.Class, bool) {
class, exist := ik.nk.GetClass(ctx, classID)
if !exist {
return nil, false
}
metadata, err := ik.cb.BuildMetadata(class)
if err != nil {
ik.Logger(ctx).Error("encode class data failed")
return nil, false
}
return InterClass{
ID: classID,
URI: class.Uri,
Data: metadata,
}, true
}
// GetNFT implement the method of ICS721Keeper.GetNFT
func (ik InterNftKeeper) GetNFT(ctx sdk.Context, classID, tokenID string) (nfttransfer.NFT, bool) {
nft, has := ik.nk.GetNFT(ctx, classID, tokenID)
if !has {
return nil, false
}
metadata, err := ik.tb.BuildMetadata(nft)
if err != nil {
ik.Logger(ctx).Error("encode nft data failed")
return nil, false
}
return InterToken{
ClassID: classID,
ID: tokenID,
URI: nft.Uri,
Data: metadata,
}, true
}
// Burn implement the method of ICS721Keeper.Burn
func (ik InterNftKeeper) Burn(ctx sdk.Context, classID string, tokenID string) error {
return ik.nk.Burn(ctx, classID, tokenID)
}
// GetOwner implement the method of ICS721Keeper.GetOwner
func (ik InterNftKeeper) GetOwner(ctx sdk.Context, classID string, tokenID string) sdk.AccAddress {
return ik.nk.GetOwner(ctx, classID, tokenID)
}
// HasClass implement the method of ICS721Keeper.HasClass
func (ik InterNftKeeper) HasClass(ctx sdk.Context, classID string) bool {
return ik.nk.HasClass(ctx, classID)
}
// Logger returns a module-specific logger.
func (ik InterNftKeeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", "ics721/NFTKeeper")
}