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grpc_query.go
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grpc_query.go
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package keeper
import (
"context"
"github.com/cosmos/cosmos-sdk/store/prefix"
"github.com/cosmos/cosmos-sdk/types/query"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/unification-com/mainchain/x/wrkchain/types"
)
var _ types.QueryServer = Keeper{}
func (k Keeper) Params(c context.Context, req *types.QueryParamsRequest) (*types.QueryParamsResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
ctx := sdk.UnwrapSDKContext(c)
params := k.GetParams(ctx)
return &types.QueryParamsResponse{Params: params}, nil
}
func (q Keeper) WrkChain(c context.Context, req *types.QueryWrkChainRequest) (*types.QueryWrkChainResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "invalid request")
}
if req.WrkchainId == 0 {
return nil, status.Error(codes.InvalidArgument, "wrkchain id can not be 0")
}
ctx := sdk.UnwrapSDKContext(c)
wrkchain, found := q.GetWrkChain(ctx, req.WrkchainId)
if !found {
return nil, status.Errorf(codes.NotFound, "wrkchain %d doesn't exist", req.WrkchainId)
}
return &types.QueryWrkChainResponse{Wrkchain: &wrkchain}, nil
}
func (q Keeper) WrkChainBlock(c context.Context, req *types.QueryWrkChainBlockRequest) (*types.QueryWrkChainBlockResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "invalid request")
}
if req.WrkchainId == 0 {
return nil, status.Error(codes.InvalidArgument, "wrkchain id can not be 0")
}
// todo - if height == 0, return genesis
if req.Height == 0 {
return nil, status.Error(codes.InvalidArgument, "height can not be 0")
}
ctx := sdk.UnwrapSDKContext(c)
wrkchain, found := q.GetWrkChain(ctx, req.WrkchainId)
if !found {
return nil, status.Errorf(codes.NotFound, "wrkchain %d doesn't exist", req.WrkchainId)
}
wrkchainBlock, found := q.GetWrkChainBlock(ctx, req.WrkchainId, req.Height)
if !found {
return nil, status.Errorf(codes.NotFound, "block %d doesn't exist for wrkchain %d", req.Height, req.WrkchainId)
}
return &types.QueryWrkChainBlockResponse{
Block: &wrkchainBlock,
WrkchainId: wrkchain.WrkchainId,
Owner: wrkchain.Owner,
}, nil
}
func (q Keeper) WrkChainsFiltered(c context.Context, req *types.QueryWrkChainsFilteredRequest) (*types.QueryWrkChainsFilteredResponse, error) {
var wrkchains []types.WrkChain
ctx := sdk.UnwrapSDKContext(c)
store := ctx.KVStore(q.storeKey)
wrkchainStore := prefix.NewStore(store, types.RegisteredWrkChainPrefix)
pageRes, err := query.FilteredPaginate(wrkchainStore, req.Pagination, func(key []byte, value []byte, accumulate bool) (bool, error) {
var wc types.WrkChain
if err := q.cdc.Unmarshal(value, &wc); err != nil {
return false, status.Error(codes.Internal, err.Error())
}
matchOwner, matchMoniker := true, true
if len(req.Owner) > 0 {
_, err := sdk.AccAddressFromBech32(req.Owner)
if err != nil {
return false, err
}
matchOwner = wc.Owner == req.Owner
}
if len(req.Moniker) > 0 {
matchMoniker = wc.Moniker == req.Moniker
}
if matchOwner && matchMoniker {
if accumulate {
wrkchains = append(wrkchains, wc)
}
return true, nil
}
return false, nil
})
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return &types.QueryWrkChainsFilteredResponse{
Wrkchains: wrkchains, Pagination: pageRes,
}, nil
}
func (q Keeper) WrkChainStorage(c context.Context, req *types.QueryWrkChainStorageRequest) (*types.QueryWrkChainStorageResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "invalid request")
}
if req.WrkchainId == 0 {
return nil, status.Error(codes.InvalidArgument, "wrkchain id can not be 0")
}
ctx := sdk.UnwrapSDKContext(c)
wrkchain, found := q.GetWrkChain(ctx, req.WrkchainId)
if !found {
return nil, status.Errorf(codes.NotFound, "wrkchain %d doesn't exist in state", req.WrkchainId)
}
maxStorageLimit := q.GetParamMaxStorageLimit(ctx)
wrkchainStorage, _ := q.GetWrkChainStorageLimit(ctx, req.WrkchainId)
return &types.QueryWrkChainStorageResponse{
WrkchainId: wrkchain.WrkchainId,
Owner: wrkchain.Owner,
CurrentLimit: wrkchainStorage.InStateLimit,
CurrentUsed: wrkchain.NumBlocks,
Max: maxStorageLimit,
MaxPurchasable: maxStorageLimit - wrkchainStorage.InStateLimit,
}, nil
}