feat(x/ecocredit): query Params ORM (#846)

* feat: query params

* Update x/ecocredit/server/core/query_params_test.go

Co-authored-by: Ryan Christoffersen <12519942+ryanchristo@users.noreply.github.com>

Co-authored-by: technicallyty <48813565+tytech3@users.noreply.github.com>
Co-authored-by: Ryan Christoffersen <12519942+ryanchristo@users.noreply.github.com>

x/ecocredit/server/core/query_params.go

@@ -0,0 +1,34 @@
+package core
+
+import (
+	"context"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/regen-network/regen-ledger/x/ecocredit"
+	"github.com/regen-network/regen-ledger/x/ecocredit/v1beta1"
+)
+
+// Params queries the ecocredit module parameters.
+// TODO: remove params https://github.com/regen-network/regen-ledger/issues/729
+// Currently this is an ugly hack that grabs v1alpha types and converts them into v1beta types.
+// will be gone with #729.
+func (k Keeper) Params(ctx context.Context, _ *v1beta1.QueryParamsRequest) (*v1beta1.QueryParamsResponse, error) {
+	sdkCtx := sdk.UnwrapSDKContext(ctx)
+	var params ecocredit.Params
+	k.params.GetParamSet(sdkCtx, &params)
+	v1beta1types := make([]*v1beta1.CreditType, len(params.CreditTypes))
+	for i, typ := range params.CreditTypes {
+		v1beta1types[i] = &v1beta1.CreditType{
+			Abbreviation: typ.Abbreviation,
+			Name:         typ.Name,
+			Unit:         typ.Unit,
+			Precision:    typ.Precision,
+		}
+	}
+	v1beta1Params := v1beta1.Params{
+		CreditClassFee:       params.CreditClassFee,
+		AllowedClassCreators: params.AllowedClassCreators,
+		AllowlistEnabled:     params.AllowlistEnabled,
+		CreditTypes:          v1beta1types,
+	}
+	return &v1beta1.QueryParamsResponse{Params: &v1beta1Params}, nil
+}

x/ecocredit/server/core/query_params_test.go

@@ -0,0 +1,41 @@
+package core
+
+import (
+	"github.com/cosmos/cosmos-sdk/types"
+	"github.com/golang/mock/gomock"
+	ecocreditv1beta1 "github.com/regen-network/regen-ledger/api/regen/ecocredit/v1beta1"
+	"github.com/regen-network/regen-ledger/x/ecocredit"
+	"github.com/regen-network/regen-ledger/x/ecocredit/v1beta1"
+	"gotest.tools/v3/assert"
+	"testing"
+)
+
+func TestQuery_Params(t *testing.T) {
+	t.Parallel()
+	s := setupBase(t)
+	any := gomock.Any()
+
+	assert.NilError(t, s.stateStore.CreditTypeStore().Insert(s.ctx, &ecocreditv1beta1.CreditType{
+		Abbreviation: "C",
+		Name:         "carbon",
+		Unit:         "a ton",
+		Precision:    6,
+	}))
+
+	s.paramsKeeper.EXPECT().GetParamSet(any, any).SetArg(1, ecocredit.Params{
+		CreditClassFee:       types.NewCoins(types.NewInt64Coin("foo", 30)),
+		AllowedClassCreators: []string{s.addr.String()},
+		AllowlistEnabled:     false,
+		CreditTypes:          []*ecocredit.CreditType{{
+			Abbreviation: "C",
+			Name: "carbon",
+			Unit: "a ton",
+			Precision: 6,
+		}},
+	})
+
+	res, err := s.k.Params(s.ctx, &v1beta1.QueryParamsRequest{})
+	assert.NilError(t, err)
+	assert.Equal(t,false, res.Params.AllowlistEnabled)
+	assert.Equal(t, s.addr.String(), res.Params.AllowedClassCreators[0])
+}