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token_pairs.go
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/
token_pairs.go
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package keeper
import (
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/ethereum/go-ethereum/common"
"github.com/functionx/fx-core/v3/x/erc20/types"
)
// GetAllTokenPairs - get all registered token tokenPairs
func (k Keeper) GetAllTokenPairs(ctx sdk.Context) []types.TokenPair {
store := ctx.KVStore(k.storeKey)
iterator := sdk.KVStorePrefixIterator(store, types.KeyPrefixTokenPair)
defer iterator.Close()
var tokenPairs []types.TokenPair
for ; iterator.Valid(); iterator.Next() {
var tokenPair types.TokenPair
k.cdc.MustUnmarshal(iterator.Value(), &tokenPair)
tokenPairs = append(tokenPairs, tokenPair)
}
return tokenPairs
}
// GetTokenPair - get registered token pair from the token or denom
func (k Keeper) GetTokenPair(ctx sdk.Context, tokenOrDenom string) (types.TokenPair, bool) {
var id []byte
if common.IsHexAddress(tokenOrDenom) {
id = k.getERC20Map(ctx, common.HexToAddress(tokenOrDenom))
} else {
id = k.getDenomMap(ctx, tokenOrDenom)
}
if id == nil {
return types.TokenPair{}, false
}
return k.getTokenPair(ctx, id)
}
func (k Keeper) GetTokenPairByAddress(ctx sdk.Context, address common.Address) (types.TokenPair, bool) {
pairID := k.getERC20Map(ctx, address)
if len(pairID) == 0 {
return types.TokenPair{}, false
}
return k.getTokenPair(ctx, pairID)
}
func (k Keeper) getTokenPair(ctx sdk.Context, id []byte) (types.TokenPair, bool) {
store := ctx.KVStore(k.storeKey)
bz := store.Get(append(types.KeyPrefixTokenPair, id...))
if len(bz) == 0 {
return types.TokenPair{}, false
}
var tokenPair types.TokenPair
k.cdc.MustUnmarshal(bz, &tokenPair)
return tokenPair, true
}
func (k Keeper) AddTokenPair(ctx sdk.Context, tokenPair types.TokenPair) {
store := ctx.KVStore(k.storeKey)
id := tokenPair.GetID()
// set pair
store.Set(append(types.KeyPrefixTokenPair, id...), k.cdc.MustMarshal(&tokenPair))
// set denom map
store.Set(append(types.KeyPrefixTokenPairByDenom, []byte(tokenPair.Denom)...), id)
// set erc20 map
store.Set(append(types.KeyPrefixTokenPairByERC20, tokenPair.GetERC20Contract().Bytes()...), id)
}
func (k Keeper) SetTokenPair(ctx sdk.Context, tokenPair types.TokenPair) {
store := ctx.KVStore(k.storeKey)
store.Set(append(types.KeyPrefixTokenPair, tokenPair.GetID()...), k.cdc.MustMarshal(&tokenPair))
}
// RemoveTokenPair removes a token pair.
func (k Keeper) RemoveTokenPair(ctx sdk.Context, tokenPair types.TokenPair) {
store := ctx.KVStore(k.storeKey)
id := tokenPair.GetID()
// delete token pair
store.Delete(append(types.KeyPrefixTokenPair, id...))
// delete denom map
store.Delete(append(types.KeyPrefixTokenPairByDenom, []byte(tokenPair.Denom)...))
// delete erc20 map
store.Delete(append(types.KeyPrefixTokenPairByERC20, tokenPair.GetERC20Contract().Bytes()...))
// delete denom alias
if md, found := k.HasDenomAlias(ctx, tokenPair.Denom); found {
k.DeleteAliasesDenom(ctx, md.DenomUnits[0].Aliases...)
}
}
// getERC20Map returns the token pair id for the given address
func (k Keeper) getERC20Map(ctx sdk.Context, erc20 common.Address) []byte {
store := ctx.KVStore(k.storeKey)
return store.Get(append(types.KeyPrefixTokenPairByERC20, erc20.Bytes()...))
}
// IsERC20Registered check if registered ERC20 token is registered
func (k Keeper) IsERC20Registered(ctx sdk.Context, erc20 common.Address) bool {
store := ctx.KVStore(k.storeKey)
return store.Has(append(types.KeyPrefixTokenPairByERC20, erc20.Bytes()...))
}
// getDenomMap returns the token pair id for the given denomination
func (k Keeper) getDenomMap(ctx sdk.Context, denom string) []byte {
store := ctx.KVStore(k.storeKey)
return store.Get(append(types.KeyPrefixTokenPairByDenom, []byte(denom)...))
}
// IsDenomRegistered check if registered coin denom is registered
func (k Keeper) IsDenomRegistered(ctx sdk.Context, denom string) bool {
store := ctx.KVStore(k.storeKey)
return store.Has(append(types.KeyPrefixTokenPairByDenom, []byte(denom)...))
}
// SetAliasesDenom sets the aliases for the denomination
func (k Keeper) SetAliasesDenom(ctx sdk.Context, denom string, aliases ...string) {
store := ctx.KVStore(k.storeKey)
for _, alias := range aliases {
store.Set(append(types.KeyPrefixAliasDenom, []byte(alias)...), []byte(denom))
}
}
// GetAliasDenom returns the denom for the given alias
func (k Keeper) GetAliasDenom(ctx sdk.Context, alias string) (string, bool) {
store := ctx.KVStore(k.storeKey)
value := store.Get(append(types.KeyPrefixAliasDenom, []byte(alias)...))
if value == nil {
return "", false
}
return string(value), true
}
// DeleteAliasesDenom deletes the denom-alias for the given alias
func (k Keeper) DeleteAliasesDenom(ctx sdk.Context, aliases ...string) {
store := ctx.KVStore(k.storeKey)
for _, alias := range aliases {
store.Delete(append(types.KeyPrefixAliasDenom, []byte(alias)...))
}
}
// IsAliasDenomRegistered check if registered coin alias is registered
func (k Keeper) IsAliasDenomRegistered(ctx sdk.Context, alias string) bool {
store := ctx.KVStore(k.storeKey)
return store.Has(append(types.KeyPrefixAliasDenom, []byte(alias)...))
}