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grpc_query.go
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grpc_query.go
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package keeper
import (
"bytes"
"context"
"fmt"
"cosmossdk.io/errors"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/types/query"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/desmos-labs/desmos/v6/x/reports/types"
)
var _ types.QueryServer = &Keeper{}
// getReportsStorePrefix returns the store prefix to be used to iterate reports based on the given request data
func getReportsStorePrefix(request *types.QueryReportsRequest) ([]byte, error) {
if request.Target == nil {
return types.SubspaceReportsPrefix(request.SubspaceId), nil
}
switch target := request.Target.GetCachedValue().(type) {
case *types.UserTarget:
if request.Reporter != "" {
return types.UserReportStoreKey(request.SubspaceId, target.User, request.Reporter), nil
}
return types.UserReportsPrefix(request.SubspaceId, target.User), nil
case *types.PostTarget:
if request.Reporter != "" {
return types.PostReportStoreKey(request.SubspaceId, target.PostID, request.Reporter), nil
}
return types.PostReportsPrefix(request.SubspaceId, target.PostID), nil
default:
return nil, fmt.Errorf("invalid target type")
}
}
// Reports implements the QueryReports gRPC method
func (k Keeper) Reports(ctx context.Context, request *types.QueryReportsRequest) (*types.QueryReportsResponse, error) {
if request.SubspaceId == 0 {
return nil, errors.Wrapf(sdkerrors.ErrInvalidRequest, "invalid subspace id")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
store := sdkCtx.KVStore(k.storeKey)
// Get the proper store prefix
storePrefix, err := getReportsStorePrefix(request)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
reportsStore := prefix.NewStore(store, storePrefix)
var reports []types.Report
pageRes, err := query.Paginate(reportsStore, request.Pagination, func(key []byte, value []byte) error {
var report types.Report
switch {
case bytes.HasPrefix(storePrefix, types.ReportPrefix):
err = k.cdc.Unmarshal(value, &report)
case bytes.HasPrefix(storePrefix, types.UsersReportsPrefix),
bytes.HasPrefix(storePrefix, types.PostsReportsPrefix):
reportID := types.GetReportIDFromBytes(value)
storedReport, found := k.GetReport(sdkCtx, request.SubspaceId, reportID)
if !found {
err = fmt.Errorf("report reference not found")
}
report = storedReport
}
if err != nil {
return err
}
reports = append(reports, report)
return nil
})
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return &types.QueryReportsResponse{
Reports: reports,
Pagination: pageRes,
}, nil
}
// Report implements the QueryReport gRPC method
func (k Keeper) Report(ctx context.Context, request *types.QueryReportRequest) (*types.QueryReportResponse, error) {
if request.SubspaceId == 0 {
return nil, errors.Wrapf(sdkerrors.ErrInvalidRequest, "invalid subspace id")
}
if request.ReportId == 0 {
return nil, errors.Wrapf(sdkerrors.ErrInvalidRequest, "invalid report id")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
report, found := k.GetReport(sdkCtx, request.SubspaceId, request.ReportId)
if !found {
return nil, errors.Wrapf(sdkerrors.ErrNotFound, "report with id %d not found inside subspace %d", request.ReportId, request.SubspaceId)
}
return &types.QueryReportResponse{Report: report}, nil
}
// Reasons implements the QueryReasons gRPC method
func (k Keeper) Reasons(ctx context.Context, request *types.QueryReasonsRequest) (*types.QueryReasonsResponse, error) {
if request.SubspaceId == 0 {
return nil, errors.Wrapf(sdkerrors.ErrInvalidRequest, "invalid subspace id")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
store := sdkCtx.KVStore(k.storeKey)
reasonsStore := prefix.NewStore(store, types.SubspaceReasonsPrefix(request.SubspaceId))
var reasons []types.Reason
pageRes, err := query.Paginate(reasonsStore, request.Pagination, func(key []byte, value []byte) error {
var reason types.Reason
if err := k.cdc.Unmarshal(value, &reason); err != nil {
return status.Error(codes.Internal, err.Error())
}
reasons = append(reasons, reason)
return nil
})
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return &types.QueryReasonsResponse{
Reasons: reasons,
Pagination: pageRes,
}, nil
}
// Reason implements the QueryReason gRPC method
func (k Keeper) Reason(ctx context.Context, request *types.QueryReasonRequest) (*types.QueryReasonResponse, error) {
if request.SubspaceId == 0 {
return nil, errors.Wrapf(sdkerrors.ErrInvalidRequest, "invalid subspace id")
}
if request.ReasonId == 0 {
return nil, errors.Wrapf(sdkerrors.ErrInvalidRequest, "invalid reason id")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
reason, found := k.GetReason(sdkCtx, request.SubspaceId, request.ReasonId)
if !found {
return nil, errors.Wrapf(sdkerrors.ErrNotFound, "reason with id %d not found inside subspace %d", request.ReasonId, request.SubspaceId)
}
return &types.QueryReasonResponse{Reason: reason}, nil
}
// Params implements the QueryParams gRPC method
func (k Keeper) Params(ctx context.Context, _ *types.QueryParamsRequest) (*types.QueryParamsResponse, error) {
sdkCtx := sdk.UnwrapSDKContext(ctx)
params := k.GetParams(sdkCtx)
return &types.QueryParamsResponse{
Params: params,
}, nil
}