/
token.go
97 lines (83 loc) · 2.26 KB
/
token.go
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package client
import (
"context"
"fmt"
"strings"
"github.com/tendermint/tendermint/libs/log"
"github.com/gridironzone/service-sdk-go/base_modules/token"
"github.com/gridironzone/service-sdk-go/codec"
sdk "github.com/gridironzone/service-sdk-go/types"
"github.com/gridironzone/service-sdk-go/utils/cache"
)
type tokenQuery struct {
q sdk.Queries
sdk.GRPCClient
cdc codec.Marshaler
log.Logger
cache.Cache
}
func (l tokenQuery) QueryToken(denom string) (sdk.Token, error) {
denom = strings.ToLower(denom)
if t, err := l.Get(l.prefixKey(denom)); err == nil {
return t.(sdk.Token), nil
}
conn, err := l.GenConn()
defer func() { _ = conn.Close() }()
if err != nil {
return sdk.Token{}, sdk.Wrap(err)
}
response, err := token.NewQueryClient(conn).Token(
context.Background(),
&token.QueryTokenRequest{Denom: denom},
)
if err != nil {
return sdk.Token{}, sdk.Wrap(err)
}
var srcToken token.TokenInterface
if err = l.cdc.UnpackAny(response.Token, &srcToken); err != nil {
return sdk.Token{}, sdk.Wrap(err)
}
token := srcToken.(*token.Token).Convert().(sdk.Token)
l.SaveTokens(token)
return token, nil
}
func (l tokenQuery) SaveTokens(tokens ...sdk.Token) {
for _, t := range tokens {
err1 := l.Set(l.prefixKey(t.Symbol), t)
err2 := l.Set(l.prefixKey(t.MinUnit), t)
if err1 != nil || err2 != nil {
l.Debug("cache token failed", "symbol", t.Symbol)
}
}
}
func (l tokenQuery) ToMinCoin(coins ...sdk.DecCoin) (dstCoins sdk.Coins, err sdk.Error) {
for _, coin := range coins {
token, err := l.QueryToken(coin.Denom)
if err != nil {
return nil, sdk.Wrap(err)
}
minCoin, err := token.GetCoinType().ConvertToMinCoin(coin)
if err != nil {
return nil, sdk.Wrap(err)
}
dstCoins = append(dstCoins, minCoin)
}
return dstCoins.Sort(), nil
}
func (l tokenQuery) ToMainCoin(coins ...sdk.Coin) (dstCoins sdk.DecCoins, err sdk.Error) {
for _, coin := range coins {
token, err := l.QueryToken(coin.Denom)
if err != nil {
return dstCoins, sdk.Wrap(err)
}
mainCoin, err := token.GetCoinType().ConvertToMainCoin(coin)
if err != nil {
return dstCoins, sdk.Wrap(err)
}
dstCoins = append(dstCoins, mainCoin)
}
return dstCoins.Sort(), nil
}
func (l tokenQuery) prefixKey(symbol string) string {
return fmt.Sprintf("token:%s", symbol)
}