/
token.go
82 lines (63 loc) · 2.32 KB
/
token.go
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package keeper
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cicizeo/hilo/x/leverage/types"
)
// FromUTokenToTokenDenom returns the associated token denom for the given uToken
// denom. If the uToken denom does not exist, we assume the association is
// invalid and we return an empty string.
func (k Keeper) FromUTokenToTokenDenom(ctx sdk.Context, uTokenDenom string) string {
store := ctx.KVStore(k.storeKey)
key := types.CreateUTokenDenomKey(uTokenDenom)
bz := store.Get(key)
if len(bz) == 0 {
return ""
}
return string(bz)
}
// FromTokenToUTokenDenom returns the associated uToken denom for the given token
// denom. If the token denom does not exist, we assume the association is invalid
// and we return an empty string.
func (k Keeper) FromTokenToUTokenDenom(ctx sdk.Context, tokenDenom string) string {
store := ctx.KVStore(k.storeKey)
key := types.CreateTokenDenomKey(tokenDenom)
bz := store.Get(key)
if len(bz) == 0 {
return ""
}
return string(bz)
}
// IsAcceptedToken returns true if a given (non-UToken) token denom is an
// accepted asset type.
func (k Keeper) IsAcceptedToken(ctx sdk.Context, tokenDenom string) bool {
store := ctx.KVStore(k.storeKey)
key := types.CreateTokenDenomKey(tokenDenom)
return store.Has(key)
}
// IsAcceptedUToken returns true if a given uToken denom is an accepted asset
// type.
func (k Keeper) IsAcceptedUToken(ctx sdk.Context, uTokenDenom string) bool {
store := ctx.KVStore(k.storeKey)
key := types.CreateUTokenDenomKey(uTokenDenom)
return store.Has(key)
}
// SetTokenDenom stores the token denom along with the uToken denom association.
func (k Keeper) SetTokenDenom(ctx sdk.Context, tokenDenom string) {
uTokenDenom := types.UTokenFromTokenDenom(tokenDenom)
store := ctx.KVStore(k.storeKey)
tokenKey := types.CreateTokenDenomKey(tokenDenom)
store.Set(tokenKey, []byte(uTokenDenom))
uTokenKey := types.CreateUTokenDenomKey(uTokenDenom)
store.Set(uTokenKey, []byte(tokenDenom))
}
// SetRegisteredToken stores a token into the x/leverage module's KVStore.
func (k Keeper) SetRegisteredToken(ctx sdk.Context, token types.Token) {
store := ctx.KVStore(k.storeKey)
tokenKey := types.CreateRegisteredTokenKey(token.BaseDenom)
bz, err := token.Marshal()
if err != nil {
panic(fmt.Sprintf("failed to encode token: %s", err))
}
store.Set(tokenKey, bz)
}