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token.go
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token.go
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package keeper
import (
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/furyfoundation/fury-blockchain/x/token/types"
)
func tokenKey(minter, contract_address string) []byte {
key := minter + contract_address
return []byte(key)
}
func (k Keeper) SetToken(ctx sdk.Context, value types.Token) {
key := tokenKey(value.Minter, value.ContractAddress)
k.Set(ctx, []byte(key), types.TokenKey, value, k.Marshal)
}
func (k Keeper) GetToken(ctx sdk.Context, minter, contractAddress string) (types.Token, error) {
key := tokenKey(minter, contractAddress)
val, found := k.Get(ctx, []byte(key), types.TokenKey, k.UnmarshalToken)
if !found {
return types.Token{}, sdkerrors.Wrapf(types.ErrTokenNotFound, "token not found minter %s and contract address %s", minter, contractAddress)
}
return val.(types.Token), nil
}
func (k Keeper) UnmarshalToken(value []byte) (interface{}, bool) {
data := types.Token{}
k.Unmarshal(value, &data)
return data, types.IsValidToken(&data)
}
func (k Keeper) Marshal(value interface{}) (bytes []byte) {
switch value := value.(type) {
case types.Token:
bytes = k.cdc.MustMarshal(&value)
case types.TokenProperties:
bytes = k.cdc.MustMarshal(&value)
}
return
}
func (k Keeper) SetTokenProperties(ctx sdk.Context, value types.TokenProperties) {
k.Set(ctx, []byte(value.Id), types.TokenPropertiesKey, value, k.Marshal)
}
func (k Keeper) GetTokenProperties(ctx sdk.Context, id string) (types.TokenProperties, error) {
val, found := k.Get(ctx, []byte(id), types.TokenPropertiesKey, k.UnmarshalTokenProperties)
if !found {
return types.TokenProperties{}, sdkerrors.Wrapf(types.ErrTokenPropertiesNotFound, "token properties not found for %s", id)
}
return val.(types.TokenProperties), nil
}
func (k Keeper) UnmarshalTokenProperties(value []byte) (interface{}, bool) {
data := types.TokenProperties{}
k.Unmarshal(value, &data)
return data, types.IsValidTokenProperties(&data)
}
func (k Keeper) GetMinterTokens(ctx sdk.Context, minter string) []*types.Token {
iterator := k.GetAll(ctx, append([]byte(types.TokenKey), []byte(minter)...))
minterTokens := []*types.Token{}
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var minterToken types.Token
k.cdc.MustUnmarshal(iterator.Value(), &minterToken)
minterTokens = append(minterTokens, &minterToken)
}
return minterTokens
}
// helper function to get the Token and TokenProperties from tokenId
func (k Keeper) GetTokenById(ctx sdk.Context, id string) (*types.TokenProperties, *types.Token, error) {
tokenProperties, err := k.GetTokenProperties(ctx, id)
if err != nil {
return nil, nil, sdkerrors.Wrapf(err, "no TokenProperties for token %s", id)
}
token, found := k.GetTokenByName(ctx, tokenProperties.Name)
if !found {
return nil, nil, sdkerrors.Wrapf(types.ErrTokenNotFound, "no Token found for name %s", tokenProperties.Name)
}
return &tokenProperties, token, err
}
// helper function to get the token with provded name
func (k Keeper) GetTokenByName(ctx sdk.Context, name string) (*types.Token, bool) {
iterator := k.GetTokenIterator(ctx)
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var token types.Token
k.cdc.MustUnmarshal(iterator.Value(), &token)
if token.Name == name {
return &token, true
}
}
return nil, false
}
// helper function to check if there are any tokens with provded name, return true if it is a duplicate name
func (k Keeper) CheckTokensDuplicateName(ctx sdk.Context, name string) bool {
iterator := k.GetTokenIterator(ctx)
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var token types.Token
k.cdc.MustUnmarshal(iterator.Value(), &token)
if token.Name == name {
return true
}
}
return false
}
func (k Keeper) GetTokens(ctx sdk.Context) []types.Token {
iterator := k.GetTokenIterator(ctx)
tokens := []types.Token{}
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var token types.Token
k.cdc.MustUnmarshal(iterator.Value(), &token)
tokens = append(tokens, token)
}
return tokens
}
func (k Keeper) GetTokenIterator(ctx sdk.Context) sdk.Iterator {
return k.GetAll(ctx, append([]byte(types.TokenKey)))
}
func (k Keeper) GetMinterTokensIterator(ctx sdk.Context, minter string) sdk.Iterator {
return k.GetAll(ctx, append([]byte(types.TokenKey), []byte(minter)...))
}
func (k Keeper) GetMinterTokensStore(ctx sdk.Context, minter string) prefix.Store {
return prefix.NewStore(ctx.KVStore(k.storeKey), append(types.TokenKey, []byte(minter)...))
}
func (k Keeper) GetTokenPropertiesAll(ctx sdk.Context) []types.TokenProperties {
iterator := k.GetTokenPropertiesAllIterator(ctx)
tokenProperties := []types.TokenProperties{}
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var tp types.TokenProperties
k.cdc.MustUnmarshal(iterator.Value(), &tp)
tokenProperties = append(tokenProperties, tp)
}
return tokenProperties
}
func (k Keeper) GetTokenPropertiesAllIterator(ctx sdk.Context) sdk.Iterator {
return k.GetAll(ctx, types.TokenPropertiesKey)
}