x/staking: cli migration to use gRPC query client (#6728)

* migrated to use gRPC query client

* removed codecs usage

* review change

* added read command flags

* added pagination flags

* fixed limit issue

* added helper function for default pagination flags

* review changes

* review change

* review changes

Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

client/flags/flags.go

@@ -61,6 +61,9 @@ const (
 	FlagPage             = "page"
 	FlagLimit            = "limit"
 	FlagSignMode         = "sign-mode"
+	FlagPageKey          = "page-key"
+	FlagOffset           = "offset"
+	FlagCountTotal       = "count-total"
 )
 
 // LineBreak can be included in a command list to provide a blank line
@@ -123,6 +126,14 @@ func AddTxFlagsToCmd(cmd *cobra.Command) {
 	viper.BindPFlag(FlagKeyringBackend, cmd.Flags().Lookup(FlagKeyringBackend))
 }
 
+// AddPaginationFlagsToCmd adds common paginations flags to command
+func AddPaginationFlagsToCmd(cmd *cobra.Command, query string) {
+	cmd.Flags().String(FlagPageKey, "", fmt.Sprintf("pagination page-key of %s to query for", query))
+	cmd.Flags().Uint64(FlagOffset, 0, fmt.Sprintf("pagination offset of %s to query for", query))
+	cmd.Flags().Uint64(FlagLimit, 100, fmt.Sprintf("pagination limit of %s to query for", query))
+	cmd.Flags().Bool(FlagCountTotal, false, fmt.Sprintf("count total number of records in %s to query for", query))
+}
+
 // GasSetting encapsulates the possible values passed through the --gas flag.
 type GasSetting struct {
 	Simulate bool