From 01d0258b34f1fb6ad6cb220daf637d39421089db Mon Sep 17 00:00:00 2001
From: moul <94029+moul@users.noreply.github.com>
Date: Fri, 11 Oct 2024 01:22:35 +0200
Subject: [PATCH] feat: configure params in gno.land

Signed-off-by: moul <94029+moul@users.noreply.github.com>
---
 gno.land/pkg/gnoland/app.go  | 16 ++++++++++------
 tm2/pkg/sdk/params/keeper.go |  7 +++++++
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/gno.land/pkg/gnoland/app.go b/gno.land/pkg/gnoland/app.go
index 2380658c6e9..d467fd84846 100644
--- a/gno.land/pkg/gnoland/app.go
+++ b/gno.land/pkg/gnoland/app.go
@@ -19,6 +19,7 @@ import (
 	"github.com/gnolang/gno/tm2/pkg/sdk"
 	"github.com/gnolang/gno/tm2/pkg/sdk/auth"
 	"github.com/gnolang/gno/tm2/pkg/sdk/bank"
+	"github.com/gnolang/gno/tm2/pkg/sdk/params"
 	"github.com/gnolang/gno/tm2/pkg/std"
 	"github.com/gnolang/gno/tm2/pkg/store"
 	"github.com/gnolang/gno/tm2/pkg/store/dbadapter"
@@ -88,12 +89,13 @@ func NewAppWithOptions(cfg *AppOptions) (abci.Application, error) {
 	// Construct keepers.
 	acctKpr := auth.NewAccountKeeper(mainKey, ProtoGnoAccount)
 	bankKpr := bank.NewBankKeeper(acctKpr)
-	vmk := vm.NewVMKeeper(baseKey, mainKey, acctKpr, bankKpr, cfg.MaxCycles)
+	paramsKpr := params.NewParamsKeeper(mainKey, "params")
+	vmk := vm.NewVMKeeper(baseKey, mainKey, acctKpr, bankKpr, paramsKpr, cfg.MaxCycles)
 
 	// Set InitChainer
 	icc := cfg.InitChainerConfig
 	icc.baseApp = baseApp
-	icc.acctKpr, icc.bankKpr, icc.vmKpr = acctKpr, bankKpr, vmk
+	icc.acctKpr, icc.bankKpr, icc.vmKpr, icc.paramsKpr = acctKpr, bankKpr, vmk, paramsKpr
 	baseApp.SetInitChainer(icc.InitChainer)
 
 	// Set AnteHandler
@@ -148,6 +150,7 @@ func NewAppWithOptions(cfg *AppOptions) (abci.Application, error) {
 	// Set a handler Route.
 	baseApp.Router().AddRoute("auth", auth.NewHandler(acctKpr))
 	baseApp.Router().AddRoute("bank", bank.NewHandler(bankKpr))
+	baseApp.Router().AddRoute("params", params.NewHandler(paramsKpr))
 	baseApp.Router().AddRoute("vm", vm.NewHandler(vmk))
 
 	// Load latest version.
@@ -225,10 +228,11 @@ type InitChainerConfig struct {
 
 	// These fields are passed directly by NewAppWithOptions, and should not be
 	// configurable by end-users.
-	baseApp *sdk.BaseApp
-	vmKpr   vm.VMKeeperI
-	acctKpr auth.AccountKeeperI
-	bankKpr bank.BankKeeperI
+	baseApp   *sdk.BaseApp
+	vmKpr     vm.VMKeeperI
+	acctKpr   auth.AccountKeeperI
+	bankKpr   bank.BankKeeperI
+	paramsKpr params.ParamsKeeperI
 }
 
 // InitChainer is the function that can be used as a [sdk.InitChainer].
diff --git a/tm2/pkg/sdk/params/keeper.go b/tm2/pkg/sdk/params/keeper.go
index e24e216bafe..eac82236a77 100644
--- a/tm2/pkg/sdk/params/keeper.go
+++ b/tm2/pkg/sdk/params/keeper.go
@@ -11,6 +11,13 @@ import (
 	"github.com/gnolang/gno/tm2/pkg/store"
 )
 
+type ParamsKeeperI interface {
+	Get(ctx sdk.Context, key string, ptr interface{})
+	Set(ctx sdk.Context, key string, value interface{})
+}
+
+var _ ParamsKeeperI = ParamsKeeper{}
+
 // global paramstore Keeper.
 type ParamsKeeper struct {
 	key    store.StoreKey