package keeper import ( "context" "encoding/hex" "google.golang.org/grpc/codes" "google.golang.org/grpc/status" "github.com/cosmos/cosmos-sdk/store/prefix" sdk "github.com/cosmos/cosmos-sdk/types" "github.com/cosmos/cosmos-sdk/types/query" "github.com/0glabs/0g-chain/x/bep3/types" ) type queryServer struct { keeper Keeper } // NewQueryServerImpl creates a new server for handling gRPC queries. func NewQueryServerImpl(k Keeper) types.QueryServer { return &queryServer{keeper: k} } var _ types.QueryServer = queryServer{} // Params queries module params func (s queryServer) Params(ctx context.Context, req *types.QueryParamsRequest) (*types.QueryParamsResponse, error) { if req == nil { return nil, status.Errorf(codes.InvalidArgument, "empty request") } sdkCtx := sdk.UnwrapSDKContext(ctx) params := s.keeper.GetParams(sdkCtx) return &types.QueryParamsResponse{Params: params}, nil } // AssetSupply queries info about an asset's supply func (s queryServer) AssetSupply(ctx context.Context, req *types.QueryAssetSupplyRequest) (*types.QueryAssetSupplyResponse, error) { if req == nil { return nil, status.Errorf(codes.InvalidArgument, "empty request") } sdkCtx := sdk.UnwrapSDKContext(ctx) assetSupply, ok := s.keeper.GetAssetSupply(sdkCtx, req.Denom) if !ok { return nil, status.Errorf(codes.NotFound, "denom not found") } return &types.QueryAssetSupplyResponse{AssetSupply: mapAssetSupplyToResponse(assetSupply)}, nil } // AssetSupplies queries a list of asset supplies func (s queryServer) AssetSupplies(ctx context.Context, req *types.QueryAssetSuppliesRequest) (*types.QueryAssetSuppliesResponse, error) { if req == nil { return nil, status.Errorf(codes.InvalidArgument, "empty request") } sdkCtx := sdk.UnwrapSDKContext(ctx) var queryResults []types.AssetSupplyResponse s.keeper.IterateAssetSupplies(sdkCtx, func(assetSupply types.AssetSupply) bool { queryResults = append(queryResults, mapAssetSupplyToResponse(assetSupply)) return false }) return &types.QueryAssetSuppliesResponse{ AssetSupplies: queryResults, }, nil } // AtomicSwap queries info about an atomic swap func (s queryServer) AtomicSwap(ctx context.Context, req *types.QueryAtomicSwapRequest) (*types.QueryAtomicSwapResponse, error) { if req == nil { return nil, status.Errorf(codes.InvalidArgument, "empty request") } swapId, err := hex.DecodeString(req.SwapId) if err != nil { return nil, status.Errorf(codes.NotFound, "invalid atomic swap id") } sdkCtx := sdk.UnwrapSDKContext(ctx) atomicSwap, ok := s.keeper.GetAtomicSwap(sdkCtx, swapId) if !ok { return nil, status.Errorf(codes.NotFound, "invalid atomic swap") } return &types.QueryAtomicSwapResponse{ AtomicSwap: mapAtomicSwapToResponse(atomicSwap), }, nil } // AtomicSwaps queries a list of atomic swaps func (s queryServer) AtomicSwaps(ctx context.Context, req *types.QueryAtomicSwapsRequest) (*types.QueryAtomicSwapsResponse, error) { if req == nil { return nil, status.Errorf(codes.InvalidArgument, "empty request") } sdkCtx := sdk.UnwrapSDKContext(ctx) store := prefix.NewStore(sdkCtx.KVStore(s.keeper.key), types.AtomicSwapKeyPrefix) var queryResults []types.AtomicSwapResponse pageRes, err := query.FilteredPaginate(store, req.Pagination, func(_, value []byte, shouldAccumulate bool) (bool, error) { var atomicSwap types.AtomicSwap err := s.keeper.cdc.Unmarshal(value, &atomicSwap) if err != nil { return false, err } if len(req.Involve) > 0 { if atomicSwap.Sender.String() != req.Involve && atomicSwap.Recipient.String() != req.Involve { return false, nil } } // match expiration block limit (if supplied) if req.Expiration > 0 { if atomicSwap.ExpireHeight > req.Expiration { return false, nil } } // match status (if supplied/valid) if req.Status.IsValid() { if atomicSwap.Status != req.Status { return false, nil } } // match direction (if supplied/valid) if req.Direction.IsValid() { if atomicSwap.Direction != req.Direction { return false, nil } } if shouldAccumulate { queryResults = append(queryResults, mapAtomicSwapToResponse(atomicSwap)) } return true, nil }) if err != nil { return nil, status.Errorf(codes.InvalidArgument, "paginate: %v", err) } return &types.QueryAtomicSwapsResponse{ AtomicSwaps: queryResults, Pagination: pageRes, }, nil } func mapAssetSupplyToResponse(assetSupply types.AssetSupply) types.AssetSupplyResponse { return types.AssetSupplyResponse{ IncomingSupply: assetSupply.IncomingSupply, OutgoingSupply: assetSupply.OutgoingSupply, CurrentSupply: assetSupply.CurrentSupply, TimeLimitedCurrentSupply: assetSupply.TimeLimitedCurrentSupply, TimeElapsed: assetSupply.TimeElapsed, } } func mapAtomicSwapToResponse(atomicSwap types.AtomicSwap) types.AtomicSwapResponse { return types.AtomicSwapResponse{ Id: atomicSwap.GetSwapID().String(), Amount: atomicSwap.Amount, RandomNumberHash: atomicSwap.RandomNumberHash.String(), ExpireHeight: atomicSwap.ExpireHeight, Timestamp: atomicSwap.Timestamp, Sender: atomicSwap.Sender.String(), Recipient: atomicSwap.Recipient.String(), SenderOtherChain: atomicSwap.SenderOtherChain, RecipientOtherChain: atomicSwap.RecipientOtherChain, ClosedBlock: atomicSwap.ClosedBlock, Status: atomicSwap.Status, CrossChain: atomicSwap.CrossChain, Direction: atomicSwap.Direction, } }