feat: mapped account query

docs/swagger.yml

@@ -2379,6 +2379,136 @@ paths:
                 type: string
       tags:
         - Msg
+  /quicksilver/interchainstaking/v1/mapped_addresses/{address}:
+    get:
+      summary: >-
+        MappedAccounts provides data on the mapped accounts for a given user
+        over different host chains.
+      operationId: MappedAccounts
+      responses:
+        '200':
+          description: A successful response.
+          schema:
+            type: object
+            properties:
+              RemoteAddressMap:
+                type: object
+                additionalProperties:
+                  type: string
+                  format: byte
+              pagination:
+                type: object
+                properties:
+                  next_key:
+                    type: string
+                    format: byte
+                    description: |-
+                      next_key is the key to be passed to PageRequest.key to
+                      query the next page most efficiently. It will be empty if
+                      there are no more results.
+                  total:
+                    type: string
+                    format: uint64
+                    title: >-
+                      total is total number of results available if
+                      PageRequest.count_total
+
+                      was set, its value is undefined otherwise
+                description: >-
+                  PageResponse is to be embedded in gRPC response messages where
+                  the
+
+                  corresponding request message has used PageRequest.
+
+                   message SomeResponse {
+                           repeated Bar results = 1;
+                           PageResponse page = 2;
+                   }
+        default:
+          description: An unexpected error response.
+          schema:
+            type: object
+            properties:
+              error:
+                type: string
+              code:
+                type: integer
+                format: int32
+              message:
+                type: string
+              details:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    type_url:
+                      type: string
+                    value:
+                      type: string
+                      format: byte
+      parameters:
+        - name: address
+          in: path
+          required: true
+          type: string
+        - name: pagination.key
+          description: |-
+            key is a value returned in PageResponse.next_key to begin
+            querying the next page most efficiently. Only one of offset or key
+            should be set.
+          in: query
+          required: false
+          type: string
+          format: byte
+        - name: pagination.offset
+          description: >-
+            offset is a numeric offset that can be used when key is unavailable.
+
+            It is less efficient than using key. Only one of offset or key
+            should
+
+            be set.
+          in: query
+          required: false
+          type: string
+          format: uint64
+        - name: pagination.limit
+          description: >-
+            limit is the total number of results to be returned in the result
+            page.
+
+            If left empty it will default to a value to be set by each app.
+          in: query
+          required: false
+          type: string
+          format: uint64
+        - name: pagination.count_total
+          description: >-
+            count_total is set to true  to indicate that the result set should
+            include
+
+            a count of the total number of items available for pagination in
+            UIs.
+
+            count_total is only respected when offset is used. It is ignored
+            when key
+
+            is set.
+          in: query
+          required: false
+          type: boolean
+        - name: pagination.reverse
+          description: >-
+            reverse is set to true if results are to be returned in the
+            descending order.
+
+
+            Since: cosmos-sdk 0.43
+          in: query
+          required: false
+          type: boolean
+      tags:
+        - QueryInterchainStaking
   /quicksilver/interchainstaking/v1/zone/{chain_id}:
     get:
       summary: Zone provides meta data on a specific zone.

proto/quicksilver/interchainstaking/v1/query.proto

@@ -70,6 +70,11 @@ service Query {
       "/quicksilver/interchainstaking/v1/zones/"
       "{chain_id}/redelegation_records";
   }
+
+  // MappedAccounts provides data on the mapped accounts for a given user over different host chains.
+  rpc MappedAccounts(QueryMappedAccountsRequest) returns (QueryMappedAccountsResponse) {
+    option (google.api.http).get = "/quicksilver/interchainstaking/v1/mapped_addresses/{address}";
+  }
 }
 
 message Statistics {
@@ -184,3 +189,13 @@ message QueryRedelegationRecordsResponse {
   repeated RedelegationRecord redelegations = 1 [(gogoproto.nullable) = false];
   cosmos.base.query.v1beta1.PageResponse pagination = 2;
 }
+
+message QueryMappedAccountsRequest {
+  string address = 1 [(cosmos_proto.scalar) = "cosmos.AddressString"];
+  cosmos.base.query.v1beta1.PageRequest pagination = 2;
+}
+
+message QueryMappedAccountsResponse {
+   map<string, bytes> RemoteAddressMap= 1 [(gogoproto.nullable) = false];
+  cosmos.base.query.v1beta1.PageResponse pagination = 2;
+}

x/interchainstaking/client/cli/query.go

@@ -28,6 +28,7 @@ func GetQueryCmd() *cobra.Command {
 		GetCmdZones(),
 		GetDelegatorIntentCmd(),
 		GetDepositAccountCmd(),
+		GetMappedAccountsCmd(),
 	)
 
 	return cmd
@@ -144,3 +145,37 @@ func GetDepositAccountCmd() *cobra.Command {
 
 	return cmd
 }
+
+// GetMappedAccountsCmd returns the mapped account for the given address.
+func GetMappedAccountsCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "mapped-accounts [address]",
+		Short: "Query mapped accounts for a given address.",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			clientCtx, err := client.GetClientQueryContext(cmd)
+			if err != nil {
+				return err
+			}
+
+			// args
+			address := args[0]
+
+			queryClient := types.NewQueryClient(clientCtx)
+			req := &types.QueryMappedAccountsRequest{
+				Address: address,
+			}
+
+			res, err := queryClient.MappedAccounts(cmd.Context(), req)
+			if err != nil {
+				return err
+			}
+
+			return clientCtx.PrintProto(res)
+		},
+	}
+
+	flags.AddQueryFlagsToCmd(cmd)
+
+	return cmd
+}

x/interchainstaking/keeper/address_map.go

@@ -15,6 +15,30 @@ func (k *Keeper) GetRemoteAddressMap(ctx sdk.Context, localAddress []byte, chain
 	return value, value != nil
 }
 
+// IterateUserMappedAccounts iterates over all the user mapped accounts.
+func (k Keeper) IterateUserMappedAccounts(ctx sdk.Context, localAddress []byte, fn func(index int64, chainID string, remoteAddressBytes []byte) (stop bool)) {
+	// noop
+	if fn == nil {
+		return
+	}
+
+	store := ctx.KVStore(k.storeKey)
+	iterator := sdk.KVStorePrefixIterator(store, types.GetRemoteAddressPrefix(localAddress))
+	defer iterator.Close()
+
+	i := int64(0)
+	for ; iterator.Valid(); iterator.Next() {
+		value := iterator.Value()
+		key := iterator.Key()
+		chainIDBytes := key[len(types.GetRemoteAddressPrefix(localAddress)):]
+		stop := fn(i, string(chainIDBytes), value)
+		if stop {
+			break
+		}
+		i++
+	}
+}
+
 // SetRemoteAddressMap sets a remote address using a local address as a map.
 func (k *Keeper) SetRemoteAddressMap(ctx sdk.Context, localAddress, remoteAddress []byte, chainID string) {
 	store := ctx.KVStore(k.storeKey)

x/interchainstaking/keeper/grpc_query.go

@@ -10,6 +10,7 @@ import (
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 
+	"github.com/ingenuity-build/quicksilver/utils"
 	"github.com/ingenuity-build/quicksilver/x/interchainstaking/types"
 )
 
@@ -254,3 +255,24 @@ func (k *Keeper) RedelegationRecords(c context.Context, req *types.QueryRedelega
 
 	return &types.QueryRedelegationRecordsResponse{Redelegations: redelegations}, nil
 }
+
+func (k *Keeper) MappedAccounts(c context.Context, req *types.QueryMappedAccountsRequest) (*types.QueryMappedAccountsResponse, error) {
+	if req == nil {
+		return nil, status.Error(codes.InvalidArgument, "empty request")
+	}
+
+	ctx := sdk.UnwrapSDKContext(c)
+
+	remoteAddressMap := make(map[string][]byte)
+	addrBytes, err := utils.AccAddressFromBech32(req.Address, sdk.GetConfig().GetBech32AccountAddrPrefix())
+	if err != nil {
+		return nil, status.Error(codes.InvalidArgument, "Invalid Address")
+	}
+
+	k.IterateUserMappedAccounts(ctx, addrBytes, func(index int64, chainID string, remoteAddressBytes []byte) (stop bool) {
+		remoteAddressMap[chainID] = remoteAddressBytes
+		return false
+	})
+
+	return &types.QueryMappedAccountsResponse{RemoteAddressMap: remoteAddressMap}, nil
+}