Community Param Updates (#1741)

* refactor param validation test cases to be shared by genesis and params
tests

* add additional test case for zero staking rewards in order to ensure
no regressions in support for turning off rewards

* add test case to ensure default params are valid -- prevent regression
if defaults change to an invalid state during updates of validation or
defaults

* zero out parameters in migration -- this module will be used with
existing chains and parameters should be set after migrations in
each upgrade handler

* update StakingRewardsPerSecond to an 18 decimal type in order to
reduce error

* add community grpc rest endpoints to swagger

* Fix copy pasta query name to refer to correct Community module

Co-authored-by: drklee3 <derrick@dlee.dev>

* generate swagger changes from previous commit

---------

Co-authored-by: drklee3 <derrick@dlee.dev>

client/docs/config.json

@@ -233,6 +233,23 @@
         ]
       }
     },
+    {
+      "url": "./out/swagger/kava/community/v1beta1/query.swagger.json",
+      "tags": {
+        "rename": {
+          "Query": "Community"
+        }
+      },
+      "operationIds": {
+        "rename": [
+          {
+            "type": "regex",
+            "from": "(.*)",
+            "to": "Community$1"
+          }
+        ]
+      }
+    },
     {
       "url": "./client/docs/cosmos-swagger.yml",
       "dereference": {

client/docs/swagger-ui/swagger.yaml

@@ -12991,6 +12991,176 @@ paths:
                       format: byte
       tags:
         - Savings
+  /kava/community/v1beta1/balance:
+    get:
+      summary: Balance queries the balance of all coins of x/community module.
+      operationId: CommunityBalance
+      responses:
+        '200':
+          description: A successful response.
+          schema:
+            type: object
+            properties:
+              coins:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    denom:
+                      type: string
+                    amount:
+                      type: string
+                  description: >-
+                    Coin defines a token with a denomination and an amount.
+
+
+                    NOTE: The amount field is an Int which implements the custom
+                    method
+
+                    signatures required by gogoproto.
+            description: >-
+              QueryBalanceResponse defines the response type for querying
+              x/community balance.
+        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
+      tags:
+        - Community
+  /kava/community/v1beta1/params:
+    get:
+      summary: Params queires the module params.
+      operationId: CommunityParams
+      responses:
+        '200':
+          description: A successful response.
+          schema:
+            type: object
+            properties:
+              params:
+                title: params represents the community module parameters
+                type: object
+                properties:
+                  upgrade_time_disable_inflation:
+                    type: string
+                    format: date-time
+                    description: >-
+                      upgrade_time_disable_inflation is the time at which to
+                      disable mint and kavadist module inflation.
+
+                      If set to 0, inflation will be disabled from block 1.
+                  staking_rewards_per_second:
+                    type: string
+                    title: >-
+                      staking_rewards_per_second is the amount paid out to
+                      delegators each block from the community account
+                description: Params defines the parameters of the community module.
+            description: >-
+              QueryParamsResponse defines the response type for querying
+              x/community params.
+        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
+      tags:
+        - Community
+  /kava/community/v1beta1/total_balance:
+    get:
+      summary: |-
+        TotalBalance queries the balance of all coins, including x/distribution,
+        x/community, and supplied balances.
+      operationId: CommunityTotalBalance
+      responses:
+        '200':
+          description: A successful response.
+          schema:
+            type: object
+            properties:
+              pool:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    denom:
+                      type: string
+                    amount:
+                      type: string
+                  description: >-
+                    DecCoin defines a token with a denomination and a decimal
+                    amount.
+
+
+                    NOTE: The amount field is an Dec which implements the custom
+                    method
+
+                    signatures required by gogoproto.
+                description: pool defines community pool's coins.
+            description: >-
+              QueryTotalBalanceResponse defines the response type for querying
+              total
+
+              community pool balance. This matches the x/distribution
+              CommunityPool query response.
+        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
+      tags:
+        - Community
   /cosmos/auth/v1beta1/accounts:
     get:
       summary: Accounts returns all the existing accounts
@@ -56830,6 +57000,102 @@ definitions:
     description: >-
       TotalSupplyResponse defines the response type for the Query/TotalSupply
       method.
+  cosmos.base.v1beta1.DecCoin:
+    type: object
+    properties:
+      denom:
+        type: string
+      amount:
+        type: string
+    description: |-
+      DecCoin defines a token with a denomination and a decimal amount.
+
+      NOTE: The amount field is an Dec which implements the custom method
+      signatures required by gogoproto.
+  kava.community.v1beta1.Params:
+    type: object
+    properties:
+      upgrade_time_disable_inflation:
+        type: string
+        format: date-time
+        description: >-
+          upgrade_time_disable_inflation is the time at which to disable mint
+          and kavadist module inflation.
+
+          If set to 0, inflation will be disabled from block 1.
+      staking_rewards_per_second:
+        type: string
+        title: >-
+          staking_rewards_per_second is the amount paid out to delegators each
+          block from the community account
+    description: Params defines the parameters of the community module.
+  kava.community.v1beta1.QueryBalanceResponse:
+    type: object
+    properties:
+      coins:
+        type: array
+        items:
+          type: object
+          properties:
+            denom:
+              type: string
+            amount:
+              type: string
+          description: |-
+            Coin defines a token with a denomination and an amount.
+
+            NOTE: The amount field is an Int which implements the custom method
+            signatures required by gogoproto.
+    description: >-
+      QueryBalanceResponse defines the response type for querying x/community
+      balance.
+  kava.community.v1beta1.QueryParamsResponse:
+    type: object
+    properties:
+      params:
+        title: params represents the community module parameters
+        type: object
+        properties:
+          upgrade_time_disable_inflation:
+            type: string
+            format: date-time
+            description: >-
+              upgrade_time_disable_inflation is the time at which to disable
+              mint and kavadist module inflation.
+
+              If set to 0, inflation will be disabled from block 1.
+          staking_rewards_per_second:
+            type: string
+            title: >-
+              staking_rewards_per_second is the amount paid out to delegators
+              each block from the community account
+        description: Params defines the parameters of the community module.
+    description: >-
+      QueryParamsResponse defines the response type for querying x/community
+      params.
+  kava.community.v1beta1.QueryTotalBalanceResponse:
+    type: object
+    properties:
+      pool:
+        type: array
+        items:
+          type: object
+          properties:
+            denom:
+              type: string
+            amount:
+              type: string
+          description: |-
+            DecCoin defines a token with a denomination and a decimal amount.
+
+            NOTE: The amount field is an Dec which implements the custom method
+            signatures required by gogoproto.
+        description: pool defines community pool's coins.
+    description: >-
+      QueryTotalBalanceResponse defines the response type for querying total
+
+      community pool balance. This matches the x/distribution CommunityPool
+      query response.
   cosmos.auth.v1beta1.AddressBytesToStringResponse:
     type: object
     properties:
@@ -64281,18 +64547,6 @@ definitions:
       application's
 
       state transition machine.
-  cosmos.base.v1beta1.DecCoin:
-    type: object
-    properties:
-      denom:
-        type: string
-      amount:
-        type: string
-    description: |-
-      DecCoin defines a token with a denomination and a decimal amount.
-
-      NOTE: The amount field is an Dec which implements the custom method
-      signatures required by gogoproto.
   cosmos.distribution.v1beta1.DelegationDelegatorReward:
     type: object
     properties:

proto/kava/community/v1beta1/params.proto

@@ -18,8 +18,8 @@ message Params {
 
   // staking_rewards_per_second is the amount paid out to delegators each block from the community account
   string staking_rewards_per_second = 2 [
-    (cosmos_proto.scalar) = "cosmos.Int",
+    (cosmos_proto.scalar) = "cosmos.Dec",
-    (gogoproto.customtype) = "cosmossdk.io/math.Int",
+    (gogoproto.customtype) = "cosmossdk.io/math.LegacyDec",
     (gogoproto.nullable) = false
   ];
 }

x/community/genesis_test.go

@@ -33,7 +33,7 @@ func (suite *genesisTestSuite) TestInitGenesis() {
 	genesisState := types.NewGenesisState(
 		types.NewParams(
 			time.Date(1998, 1, 1, 0, 0, 0, 0, time.UTC),
-			sdkmath.NewInt(1000),
+			sdkmath.LegacyNewDec(1000),
 		),
 	)
 
@@ -55,7 +55,7 @@ func (suite *genesisTestSuite) TestInitGenesis() {
 func (suite *genesisTestSuite) TestExportGenesis() {
 	params := types.NewParams(
 		time.Date(1998, 1, 1, 0, 0, 0, 0, time.UTC),
-		sdkmath.NewInt(1000),
+		sdkmath.LegacyNewDec(1000),
 	)
 	suite.Keeper.SetParams(suite.Ctx, params)
 
@@ -68,7 +68,7 @@ func (suite *genesisTestSuite) TestInitExportIsLossless() {
 	genesisState := types.NewGenesisState(
 		types.NewParams(
 			time.Date(1998, 1, 1, 0, 0, 0, 0, time.UTC),
-			sdkmath.NewInt(1000),
+			sdkmath.LegacyNewDec(1000),
 		),
 	)
 

x/community/keeper/grpc_query_test.go

@@ -36,7 +36,7 @@ func TestGrpcQueryTestSuite(t *testing.T) {
 func (suite *grpcQueryTestSuite) TestGrpcQueryParams() {
 	p := types.NewParams(
 		time.Date(1998, 1, 1, 0, 0, 0, 0, time.UTC),
-		sdkmath.NewInt(1000),
+		sdkmath.LegacyNewDec(1000),
 	)
 	suite.Keeper.SetParams(suite.Ctx, p)
 

x/community/keeper/params_test.go

@@ -62,7 +62,7 @@ func (suite *StoreTestSuite) TestGetSetParams() {
 
 		params := types.NewParams(
 			time.Date(1998, 1, 1, 0, 0, 0, 0, time.UTC),
-			sdkmath.NewInt(1000),
+			sdkmath.LegacyNewDec(1000),
 		)
 		suite.Keeper.SetParams(suite.Ctx, params)
 

x/community/migrations/v2/store.go

@@ -5,6 +5,7 @@ import (
 
 	storetypes "github.com/cosmos/cosmos-sdk/store/types"
 
+	sdkmath "cosmossdk.io/math"
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/kava-labs/kava/x/community/types"
@@ -22,9 +23,8 @@ func Migrate(
 	cdc codec.BinaryCodec,
 ) error {
 	params := types.NewParams(
-		// 2023-11-01T00:00:00Z
+		time.Time{},
-		time.Date(2023, 11, 1, 0, 0, 0, 0, time.UTC),
+		sdkmath.LegacyNewDec(0),
-		sdk.NewInt(744191),
 	)
 
 	if err := params.Validate(); err != nil {

x/community/migrations/v2/store_test.go

@@ -4,6 +4,7 @@ import (
 	"testing"
 	"time"
 
+	sdkmath "cosmossdk.io/math"
 	"github.com/stretchr/testify/require"
 
 	"github.com/cosmos/cosmos-sdk/testutil"
@@ -39,8 +40,8 @@ func TestMigrateStore(t *testing.T) {
 	require.Equal(
 		t,
 		types.NewParams(
-			time.Date(2023, 11, 1, 0, 0, 0, 0, time.UTC),
+			time.Time{},
-			sdk.NewInt(744191),
+			sdkmath.LegacyNewDec(0),
 		),
 		params,
 		"params should be correct after migration",

x/community/types/genesis_test.go

@@ -2,12 +2,9 @@ package types_test
 
 import (
 	"testing"
-	"time"
 
 	"github.com/stretchr/testify/require"
 
-	sdkmath "cosmossdk.io/math"
-
 	"github.com/kava-labs/kava/x/community/types"
 )
 
@@ -18,37 +15,12 @@ func TestDefaultGenesisState(t *testing.T) {
 	require.Equal(t, types.DefaultParams(), defaultGen.Params)
 }
 
-func TestGenesisState_Validate(t *testing.T) {
+func TestGenesisState_ValidateParams(t *testing.T) {
-	testCases := []struct {
+	for _, tc := range paramTestCases {
-		name        string
-		genesis     types.GenesisState
-		expectedErr string
-	}{
-		{
-			name: "valid state",
-			genesis: types.GenesisState{
-				Params: types.Params{
-					UpgradeTimeDisableInflation: time.Time{},
-					StakingRewardsPerSecond:     sdkmath.NewInt(1000),
-				},
-			},
-			expectedErr: "",
-		},
-		{
-			name: "invalid params",
-			genesis: types.GenesisState{
-				Params: types.Params{
-					UpgradeTimeDisableInflation: time.Time{},
-					StakingRewardsPerSecond:     sdkmath.Int{},
-				},
-			},
-			expectedErr: "StakingRewardsPerSecond should not be nil",
-		},
-	}
-
-	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
-			err := tc.genesis.Validate()
+			genState := types.NewGenesisState(tc.params)
+
+			err := genState.Validate()
 
 			if tc.expectedErr == "" {
 				require.NoError(t, err)

x/community/types/params.go

@@ -11,13 +11,13 @@ import (
 var (
 	DefaultUpgradeTimeDisableInflation = time.Time{}
 	// DefaultStakingRewardsPerSecond is ~4.6 KAVA per block, 6.3s block time
-	DefaultStakingRewardsPerSecond = sdkmath.NewInt(744191)
+	DefaultStakingRewardsPerSecond = sdkmath.LegacyNewDec(744191)
 )
 
 // NewParams returns a new params object
 func NewParams(
 	upgradeTime time.Time,
-	stakingRewardsPerSecond sdkmath.Int,
+	stakingRewardsPerSecond sdkmath.LegacyDec,
 ) Params {
 	return Params{
 		UpgradeTimeDisableInflation: upgradeTime,

x/community/types/params.pb.go

@@ -35,7 +35,7 @@ type Params struct {
 	// If set to 0, inflation will be disabled from block 1.
 	UpgradeTimeDisableInflation time.Time `protobuf:"bytes,1,opt,name=upgrade_time_disable_inflation,json=upgradeTimeDisableInflation,proto3,stdtime" json:"upgrade_time_disable_inflation"`
 	// staking_rewards_per_second is the amount paid out to delegators each block from the community account
-	StakingRewardsPerSecond cosmossdk_io_math.Int `protobuf:"bytes,2,opt,name=staking_rewards_per_second,json=stakingRewardsPerSecond,proto3,customtype=cosmossdk.io/math.Int" json:"staking_rewards_per_second"`
+	StakingRewardsPerSecond cosmossdk_io_math.LegacyDec `protobuf:"bytes,2,opt,name=staking_rewards_per_second,json=stakingRewardsPerSecond,proto3,customtype=cosmossdk.io/math.LegacyDec" json:"staking_rewards_per_second"`
 }
 
 func (m *Params) Reset()         { *m = Params{} }
@@ -87,28 +87,29 @@ func init() {
 }
 
 var fileDescriptor_0a48475520900507 = []byte{
-	// 336 bytes of a gzipped FileDescriptorProto
+	// 339 bytes of a gzipped FileDescriptorProto
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+	0x98, 0xc6, 0x1f, 0xef, 0x03, 0xb7, 0x49, 0x61, 0x4c, 0xe3, 0xe9, 0x45, 0x23, 0x9d, 0x5a, 0xe7,
-	0x1a, 0xdc, 0xaf, 0x77, 0x31, 0xd8, 0xec, 0x62, 0xf0, 0xbd, 0x8b, 0xc1, 0x6a, 0x1f, 0x07, 0x9b,
+	0x84, 0xca, 0xa7, 0xda, 0x38, 0xba, 0xdf, 0xec, 0x7d, 0xb4, 0xdd, 0xfb, 0xe8, 0x67, 0xef, 0xa3,
-	0x7d, 0x1c, 0xbc, 0xef, 0xe3, 0xe0, 0xa9, 0xcb, 0xb8, 0x9d, 0x95, 0xa9, 0xdb, 0x32, 0x72, 0xeb,
+	0x75, 0xe5, 0x3b, 0xdb, 0xca, 0x77, 0x3e, 0x2b, 0xdf, 0x79, 0xb9, 0x61, 0x5c, 0xcf, 0xcb, 0xc8,
-	0xee, 0xe5, 0x24, 0x35, 0x55, 0x85, 0x5e, 0xfe, 0xfc, 0x8f, 0x5d, 0x16, 0xd4, 0xa4, 0x8d, 0x2a,
+	0x64, 0x4d, 0x4c, 0xe8, 0x83, 0x14, 0x22, 0x55, 0x57, 0xe4, 0xed, 0xdf, 0x2f, 0xe9, 0x55, 0x41,
-	0xeb, 0xed, 0x4f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xc5, 0xad, 0xf1, 0xc6, 0xbe, 0x01, 0x00, 0x00,
+	0x55, 0xd4, 0xaa, 0x37, 0xbe, 0xfb, 0x0d, 0x00, 0x00, 0xff, 0xff, 0xa1, 0x87, 0x19, 0x27, 0xc4,
+	0x01, 0x00, 0x00,
 }
 
 func (m *Params) Marshal() (dAtA []byte, err error) {

x/community/types/params_test.go

@@ -10,17 +10,31 @@ import (
 	"github.com/kava-labs/kava/x/community/types"
 )
 
-func TestParamsValidate(t *testing.T) {
+type paramTestCase struct {
-	testCases := []struct {
 	name        string
 	params      types.Params
 	expectedErr string
-	}{
+}
+
+var paramTestCases = []paramTestCase{
 	{
-			name: "valid parms",
+		name:        "default params are valid",
+		params:      types.DefaultParams(),
+		expectedErr: "",
+	},
+	{
+		name: "valid params",
 		params: types.Params{
 			UpgradeTimeDisableInflation: time.Time{},
-				StakingRewardsPerSecond:     sdkmath.NewInt(1000),
+			StakingRewardsPerSecond:     sdkmath.LegacyNewDec(1000),
+		},
+		expectedErr: "",
+	},
+	{
+		name: "rewards per second are allowed to be zero",
+		params: types.Params{
+			UpgradeTimeDisableInflation: time.Time{},
+			StakingRewardsPerSecond:     sdkmath.LegacyNewDec(0),
 		},
 		expectedErr: "",
 	},
@@ -28,7 +42,7 @@ func TestParamsValidate(t *testing.T) {
 		name: "nil rewards per second",
 		params: types.Params{
 			UpgradeTimeDisableInflation: time.Time{},
-				StakingRewardsPerSecond:     sdkmath.Int{},
+			StakingRewardsPerSecond:     sdkmath.LegacyDec{},
 		},
 		expectedErr: "StakingRewardsPerSecond should not be nil",
 	},
@@ -36,13 +50,14 @@ func TestParamsValidate(t *testing.T) {
 		name: "negative rewards per second",
 		params: types.Params{
 			UpgradeTimeDisableInflation: time.Time{},
-				StakingRewardsPerSecond:     sdkmath.NewInt(-5),
+			StakingRewardsPerSecond:     sdkmath.LegacyNewDec(-5),
 		},
 		expectedErr: "StakingRewardsPerSecond should not be negative",
 	},
-	}
+}
 
-	for _, tc := range testCases {
+func TestParamsValidate(t *testing.T) {
+	for _, tc := range paramTestCases {
 		t.Run(tc.name, func(t *testing.T) {
 			err := tc.params.Validate()