convert cro->basecro by pre-processing cli arguments

cmd/chain-maind/cmd/root.go

@@ -67,6 +67,26 @@ func NewRootCmd() (*cobra.Command, params.EncodingConfig) {
 	return rootCmd, encodingConfig
 }
 
+func convertCoin(s string) string {
+	coin, err := sdk.ParseCoin(s)
+	if err != nil {
+		panic(err)
+	}
+	if coin.Denom == "cro" {
+		coin.Denom = "basecro"
+		coin.Amount = coin.Amount.Mul(sdk.NewInt(100000000))
+	}
+	return coin.String()
+}
+
+func convertDenom(args []string) {
+	if len(args) >= 5 && args[0] == "tx" && args[1] == "bank" && args[2] == "send" {
+		args[5] = convertCoin(args[5])
+	} else if len(args) >= 4 && args[0] == "tx" && args[1] == "staking" && args[2] == "delegate" {
+		args[4] = convertCoin(args[4])
+	}
+}
+
 // Execute executes the root command.
 func Execute(rootCmd *cobra.Command) error {
 	// Create and set a client.Context on the command's Context. During the pre-run
@@ -79,6 +99,8 @@ func Execute(rootCmd *cobra.Command) error {
 	ctx = context.WithValue(ctx, client.ClientContextKey, &client.Context{})
 	ctx = context.WithValue(ctx, server.ServerContextKey, server.NewDefaultContext())
 
+	convertDenom(os.Args[1:])
+	rootCmd.SetArgs(os.Args[1:])
 	executor := tmcli.PrepareBaseCmd(rootCmd, "", app.DefaultNodeHome(appName))
 	return executor.ExecuteContext(ctx)
 }