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pair.go
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pair.go
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package keeper
import (
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/sei-protocol/sei-chain/x/dex/types"
)
func (k Keeper) AddRegisteredPair(ctx sdk.Context, contractAddr string, pair types.Pair) bool {
// only add pairs that haven't been added before
if k.HasRegisteredPair(ctx, contractAddr, pair.PriceDenom, pair.AssetDenom) {
return false
}
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.RegisteredPairPrefix(contractAddr))
store.Set(types.PairPrefix(pair.PriceDenom, pair.AssetDenom), k.Cdc.MustMarshal(&pair))
return true
}
func (k Keeper) HasRegisteredPair(ctx sdk.Context, contractAddr string, priceDenom string, assetDenom string) bool {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.RegisteredPairPrefix(contractAddr))
return store.Has(types.PairPrefix(priceDenom, assetDenom))
}
func (k Keeper) GetRegisteredPair(ctx sdk.Context, contractAddr string, priceDenom string, assetDenom string) (types.Pair, bool) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.RegisteredPairPrefix(contractAddr))
b := store.Get(types.PairPrefix(priceDenom, assetDenom))
res := types.Pair{}
if b == nil {
return res, false
}
err := res.Unmarshal(b)
if err != nil {
panic(err)
}
return res, true
}
func (k Keeper) GetAllRegisteredPairs(ctx sdk.Context, contractAddr string) []types.Pair {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.RegisteredPairPrefix(contractAddr))
iterator := sdk.KVStorePrefixIterator(store, []byte{})
list := []types.Pair{}
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var val types.Pair
k.Cdc.MustUnmarshal(iterator.Value(), &val)
list = append(list, val)
}
return list
}
func (k Keeper) DeleteAllRegisteredPairsForContract(ctx sdk.Context, contractAddr string) {
k.removeAllForPrefix(ctx, types.RegisteredPairPrefix(contractAddr))
}