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query_server.go
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query_server.go
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package keeper
import (
"context"
"fmt"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/query"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
hubtypes "github.com/sentinel-official/hub/types"
"github.com/sentinel-official/hub/x/plan/types"
)
var (
_ types.QueryServiceServer = (*queryServer)(nil)
)
type queryServer struct {
Keeper
}
func NewQueryServiceServer(keeper Keeper) types.QueryServiceServer {
return &queryServer{Keeper: keeper}
}
func (q *queryServer) QueryPlan(c context.Context, req *types.QueryPlanRequest) (*types.QueryPlanResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "empty request")
}
ctx := sdk.UnwrapSDKContext(c)
item, found := q.GetPlan(ctx, req.Id)
if !found {
return nil, status.Errorf(codes.NotFound, "plan does not exist for id %d", req.Id)
}
return &types.QueryPlanResponse{Plan: item}, nil
}
func (q *queryServer) QueryPlans(c context.Context, req *types.QueryPlansRequest) (res *types.QueryPlansResponse, err error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "empty request")
}
var (
items types.Plans
keyPrefix []byte
ctx = sdk.UnwrapSDKContext(c)
)
switch req.Status {
case hubtypes.StatusActive:
keyPrefix = types.ActivePlanKeyPrefix
case hubtypes.StatusInactive:
keyPrefix = types.InactivePlanKeyPrefix
default:
keyPrefix = types.PlanKeyPrefix
}
store := prefix.NewStore(q.Store(ctx), keyPrefix)
pagination, err := query.Paginate(store, req.Pagination, func(_, value []byte) error {
var item types.Plan
if err := q.cdc.Unmarshal(value, &item); err != nil {
return err
}
items = append(items, item)
return nil
})
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return &types.QueryPlansResponse{Plans: items, Pagination: pagination}, nil
}
func (q *queryServer) QueryPlansForProvider(c context.Context, req *types.QueryPlansForProviderRequest) (res *types.QueryPlansForProviderResponse, err error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "empty request")
}
addr, err := hubtypes.ProvAddressFromBech32(req.Address)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid address %s", req.Address)
}
var (
items types.Plans
ctx = sdk.UnwrapSDKContext(c)
store = prefix.NewStore(q.Store(ctx), types.GetPlanForProviderKeyPrefix(addr))
)
pagination, err := query.FilteredPaginate(store, req.Pagination, func(key, _ []byte, accumulate bool) (bool, error) {
if !accumulate {
return false, nil
}
item, found := q.GetPlan(ctx, sdk.BigEndianToUint64(key))
if !found {
return false, fmt.Errorf("plan for key %X does not exist", key)
}
if req.Status.Equal(hubtypes.StatusUnspecified) || item.Status.Equal(req.Status) {
items = append(items, item)
return true, nil
}
return false, nil
})
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return &types.QueryPlansForProviderResponse{Plans: items, Pagination: pagination}, nil
}