[R4R] This is the implementation of the total circulating supply (#376)

* adding empty query files where we will implement the cli and rest interfaces

* adding querier file

* adding aliases, querier, expected keepers, types, module updates

* starting to work on query

* adding alias for QueryCirculatingSupply

* adding TotalCirculatingSupply type

* adding alias for TotalCirculatingSupply type

* adding QueryCirculatingSupplyCmd to clieng query file

* adding register routes function

* adding rest query handling function, register endpoint

* fix types include statement

* remove unused mux include

* another import fix

* remove unused variable

* adding rest to module

* fix missing variable names

* another missing variable fix

* remove dead code comment

* fix typo in circulating-supply

* fix import

* fix querierroute return to return the module name instead of empty string

* rename function, fix build issue

* return error instead of nil if there is an error

* import types from cosmos sdk, fix return type

* set querier route to module name in key.go

* adding query and rest updates

* aliasing new querying circulating supply function

* directly write output

* fix routes

* adding total supply functionality

* converting from microkava to kava

* Update x/validator-vesting/client/cli/query.go

typo fix

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

Co-authored-by: Kevin Davis <karzak@users.noreply.github.com>

x/validator-vesting/alias.go

@@ -1,8 +1,8 @@
 // nolint
 // autogenerated code using github.com/rigelrozanski/multitool
 // aliases generated for the following subdirectories:
-// ALIASGEN: github.com/kava-labs/kava/x/validator-vesting/internal/types/
+// ALIASGEN: github.com/kava-labs/kava/x/validator-vesting/internal/keeper
-// ALIASGEN: github.com/kava-labs/kava/x/validator-vesting/internal/keeper/
+// ALIASGEN: github.com/kava-labs/kava/x/validator-vesting/internal/types
 package validatorvesting
 
 import (
@@ -11,35 +11,37 @@ import (
 )
 
 const (
-	ModuleName = types.ModuleName
+	ModuleName             = types.ModuleName
-	StoreKey   = types.StoreKey
+	StoreKey               = types.StoreKey
+	QuerierRoute           = types.QuerierRoute
+	QueryCirculatingSupply = types.QueryCirculatingSupply
+	QueryTotalSupply       = types.QueryTotalSupply
 )
 
 var (
 	// functions aliases
-	RegisterCodec                        = types.RegisterCodec
-	NewGenesisState                      = types.NewGenesisState
-	DefaultGenesisState                  = types.DefaultGenesisState
-	ValidateGenesis                      = types.ValidateGenesis
-	ValidatorVestingAccountKey           = types.ValidatorVestingAccountKey
-	CreateTestAddrs                      = types.CreateTestAddrs
-	TestAddr                             = types.TestAddr
-	CreateTestPubKeys                    = types.CreateTestPubKeys
-	NewPubKey                            = types.NewPubKey
-	NewValidatorVestingAccountRaw        = types.NewValidatorVestingAccountRaw
-	NewValidatorVestingAccount           = types.NewValidatorVestingAccount
 	NewKeeper                            = keeper.NewKeeper
+	NewQuerier                           = keeper.NewQuerier
 	MakeTestCodec                        = keeper.MakeTestCodec
 	CreateTestInput                      = keeper.CreateTestInput
 	ValidatorVestingTestAccount          = keeper.ValidatorVestingTestAccount
 	ValidatorVestingTestAccounts         = keeper.ValidatorVestingTestAccounts
 	ValidatorVestingDelegatorTestAccount = keeper.ValidatorVestingDelegatorTestAccount
 	CreateValidators                     = keeper.CreateValidators
+	RegisterCodec                        = types.RegisterCodec
+	NewGenesisState                      = types.NewGenesisState
+	DefaultGenesisState                  = types.DefaultGenesisState
+	ValidateGenesis                      = types.ValidateGenesis
+	ValidatorVestingAccountKey           = types.ValidatorVestingAccountKey
+	NewBaseQueryParams                   = types.NewBaseQueryParams
+	CreateTestAddrs                      = types.CreateTestAddrs
+	TestAddr                             = types.TestAddr
+	CreateTestPubKeys                    = types.CreateTestPubKeys
+	NewPubKey                            = types.NewPubKey
+	NewValidatorVestingAccountRaw        = types.NewValidatorVestingAccountRaw
+	NewValidatorVestingAccount           = types.NewValidatorVestingAccount
 
 	// variable aliases
-	ModuleCdc                     = types.ModuleCdc
-	BlocktimeKey                  = types.BlocktimeKey
-	ValidatorVestingAccountPrefix = types.ValidatorVestingAccountPrefix
 	ValOpPk1                      = keeper.ValOpPk1
 	ValOpPk2                      = keeper.ValOpPk2
 	ValOpPk3                      = keeper.ValOpPk3
@@ -53,12 +55,17 @@ var (
 	ValConsAddr2                  = keeper.ValConsAddr2
 	ValConsAddr3                  = keeper.ValConsAddr3
 	TestAddrs                     = keeper.TestAddrs
+	ModuleCdc                     = types.ModuleCdc
+	BlocktimeKey                  = types.BlocktimeKey
+	ValidatorVestingAccountPrefix = types.ValidatorVestingAccountPrefix
 )
 
 type (
+	Keeper                  = keeper.Keeper
 	GenesisState            = types.GenesisState
+	BaseQueryParams         = types.BaseQueryParams
 	VestingProgress         = types.VestingProgress
 	CurrentPeriodProgress   = types.CurrentPeriodProgress
 	ValidatorVestingAccount = types.ValidatorVestingAccount
-	Keeper                  = keeper.Keeper
+	TotalCirculatingSupply  = types.TotalCirculatingSupply
 )

x/validator-vesting/client/cli/query.go

@@ -0,0 +1,72 @@
+package cli
+
+import (
+	"fmt"
+
+	"github.com/kava-labs/kava/x/validator-vesting/internal/types"
+	"github.com/spf13/cobra"
+
+	"github.com/cosmos/cosmos-sdk/client"
+	"github.com/cosmos/cosmos-sdk/client/context"
+	"github.com/cosmos/cosmos-sdk/codec"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+// GetQueryCmd returns the cli query commands for this module
+func GetQueryCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
+	// Group nameservice queries under a subcommand
+	queryValidatorVestingCmd := &cobra.Command{
+		Use:   "validator-vesting",
+		Short: "Querying commands for the validator vesting module",
+	}
+
+	queryValidatorVestingCmd.AddCommand(client.GetCommands(
+		QueryCirculatingSupplyCmd(queryRoute, cdc),
+		QueryTotalSupplyCmd(queryRoute, cdc),
+	)...)
+	return queryValidatorVestingCmd
+}
+
+// QueryCirculatingSupplyCmd queries the total circulating supply
+func QueryCirculatingSupplyCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
+	return &cobra.Command{
+		Use:   "circulating-supply",
+		Short: "Query circulating supply information",
+
+		RunE: func(cmd *cobra.Command, args []string) error {
+			cliCtx := context.NewCLIContext().WithCodec(cdc)
+
+			res, _, err := cliCtx.QueryWithData(fmt.Sprintf("custom/%s/%s", queryRoute, types.QueryCirculatingSupply), nil)
+			if err != nil {
+				fmt.Printf("could not get total circulating supply\n")
+				return err
+			}
+
+			var out sdk.Dec
+			cdc.MustUnmarshalJSON(res, &out)
+			return cliCtx.PrintOutput(out)
+		},
+	}
+}
+
+// QueryTotalSupplyCmd queries the total supply of ukava
+func QueryTotalSupplyCmd(queryRoute string, cdc *codec.Codec) *cobra.Command {
+	return &cobra.Command{
+		Use:   "total-supply",
+		Short: "Query total supply information",
+
+		RunE: func(cmd *cobra.Command, args []string) error {
+			cliCtx := context.NewCLIContext().WithCodec(cdc)
+
+			res, _, err := cliCtx.QueryWithData(fmt.Sprintf("custom/%s/%s", queryRoute, types.QueryTotalSupply), nil)
+			if err != nil {
+				fmt.Printf("could not get total supply\n")
+				return err
+			}
+
+			var out sdk.Dec
+			cdc.MustUnmarshalJSON(res, &out)
+			return cliCtx.PrintOutput(out)
+		},
+	}
+}

x/validator-vesting/client/rest/query.go

@@ -0,0 +1,88 @@
+package rest
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/cosmos/cosmos-sdk/client/context"
+	"github.com/cosmos/cosmos-sdk/types/rest"
+	"github.com/gorilla/mux"
+	"github.com/kava-labs/kava/x/validator-vesting/internal/types"
+)
+
+// define routes that get registered by the main application
+func registerQueryRoutes(cliCtx context.CLIContext, r *mux.Router) {
+
+	r.HandleFunc("/vesting/circulatingsupply", getCirculatingSupplyHandlerFn(cliCtx)).Methods("GET")
+	r.HandleFunc("/vesting/totalsupply", getTotalSupplyHandlerFn(cliCtx)).Methods("GET")
+
+}
+
+func getTotalSupplyHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		_, page, limit, err := rest.ParseHTTPArgsWithLimit(r, 0)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
+			return
+		}
+
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		params := types.NewBaseQueryParams(page, limit)
+		bz, err := cliCtx.Codec.MarshalJSON(params)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryTotalSupply)
+		res, height, err := cliCtx.QueryWithData(route, bz)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+
+		cliCtx = cliCtx.WithHeight(height)
+		// directly write output instead of putting in json
+		w.Write(res)
+		// rest.PostProcessResponse(w, cliCtx, res)
+	}
+}
+
+func getCirculatingSupplyHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		_, page, limit, err := rest.ParseHTTPArgsWithLimit(r, 0)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
+			return
+		}
+
+		cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
+		if !ok {
+			return
+		}
+
+		params := types.NewBaseQueryParams(page, limit)
+		bz, err := cliCtx.Codec.MarshalJSON(params)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
+			return
+		}
+
+		route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryCirculatingSupply)
+		res, height, err := cliCtx.QueryWithData(route, bz)
+		if err != nil {
+			rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+
+		cliCtx = cliCtx.WithHeight(height)
+		// directly write output instead of putting in json
+		w.Write(res)
+		// rest.PostProcessResponse(w, cliCtx, res)
+	}
+
+}

x/validator-vesting/client/rest/rest.go

@@ -0,0 +1,13 @@
+package rest
+
+import (
+	"github.com/cosmos/cosmos-sdk/client/context"
+
+	"github.com/gorilla/mux"
+)
+
+// RegisterRoutes - Central function to define routes that get registered by the main application
+func RegisterRoutes(cliCtx context.CLIContext, r *mux.Router) {
+	registerQueryRoutes(cliCtx, r)
+
+}

x/validator-vesting/internal/keeper/querier.go

@@ -0,0 +1,74 @@
+package keeper
+
+import (
+	"github.com/cosmos/cosmos-sdk/codec"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/cosmos/cosmos-sdk/x/auth"
+	authexported "github.com/cosmos/cosmos-sdk/x/auth/exported"
+	"github.com/cosmos/cosmos-sdk/x/auth/vesting"
+	supplyexported "github.com/cosmos/cosmos-sdk/x/supply/exported"
+	"github.com/kava-labs/kava/x/validator-vesting/internal/types"
+	abci "github.com/tendermint/tendermint/abci/types"
+)
+
+// NewQuerier returns a new querier function
+func NewQuerier(keeper Keeper) sdk.Querier {
+	return func(ctx sdk.Context, path []string, req abci.RequestQuery) (res []byte, err sdk.Error) {
+		switch path[0] {
+		case types.QueryCirculatingSupply:
+			return queryGetCirculatingSupply(ctx, req, keeper)
+		case types.QueryTotalSupply:
+			return queryGetTotalSupply(ctx, req, keeper)
+		default:
+			return nil, sdk.ErrUnknownRequest("unknown cdp query endpoint")
+		}
+	}
+}
+
+func queryGetTotalSupply(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
+	totalSupply := keeper.supplyKeeper.GetSupply(ctx).GetTotal().AmountOf("ukava")
+	supplyDec := sdk.NewDecFromInt(totalSupply).Mul(sdk.MustNewDecFromStr("0.000001"))
+	bz, err := codec.MarshalJSONIndent(keeper.cdc, supplyDec)
+	if err != nil {
+		return nil, sdk.ErrInternal(err.Error())
+	}
+	return bz, nil
+}
+
+func queryGetCirculatingSupply(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) {
+	circulatingSupply := sdk.ZeroInt()
+	keeper.ak.IterateAccounts(ctx,
+		func(acc authexported.Account) (stop bool) {
+			// exclude module account
+			_, ok := acc.(supplyexported.ModuleAccountI)
+			if ok {
+				return false
+			}
+
+			// periodic vesting account
+			vacc, ok := acc.(vesting.PeriodicVestingAccount)
+			if ok {
+				balance := vacc.GetCoins().AmountOf("ukava")
+				if balance.IsZero() {
+					return false
+				}
+				spendableBalance := vacc.SpendableCoins(ctx.BlockTime()).AmountOf("ukava")
+				circulatingSupply = circulatingSupply.Add(sdk.MinInt(balance, spendableBalance))
+				return false
+			}
+
+			// base account
+			bacc, ok := acc.(*auth.BaseAccount)
+			if ok {
+				// add all coins
+				circulatingSupply = circulatingSupply.Add(bacc.GetCoins().AmountOf("ukava"))
+			}
+			return false
+		})
+	supplyDec := sdk.NewDecFromInt(circulatingSupply).Mul(sdk.MustNewDecFromStr("0.000001"))
+	bz, err := codec.MarshalJSONIndent(keeper.cdc, supplyDec)
+	if err != nil {
+		return nil, sdk.ErrInternal(err.Error())
+	}
+	return bz, nil
+}

x/validator-vesting/internal/types/expected_keepers.go

@@ -14,6 +14,7 @@ type AccountKeeper interface {
 	GetAccount(sdk.Context, sdk.AccAddress) authexported.Account
 	SetAccount(sdk.Context, authexported.Account)
 	GetAllAccounts(ctx sdk.Context) (accounts []authexported.Account)
+	IterateAccounts(ctx sdk.Context, cb func(account authexported.Account) (stop bool))
 }
 
 // BankKeeper defines the expected bank keeper (noalias)
@@ -35,4 +36,5 @@ type SupplyKeeper interface {
 	SendCoinsFromAccountToModule(ctx sdk.Context, senderAddr sdk.AccAddress, recipientModule string, amt sdk.Coins) sdk.Error
 	BurnCoins(ctx sdk.Context, name string, amt sdk.Coins) sdk.Error
 	SetModuleAccount(sdk.Context, supplyexported.ModuleAccountI)
+	GetSupply(ctx sdk.Context) (supply supplyexported.SupplyI)
 }

x/validator-vesting/internal/types/key.go

@@ -10,6 +10,9 @@ const (
 
 	// StoreKey to be used when creating the KVStore
 	StoreKey = ModuleName
+
+	// QuerierRoute should be set to module name
+	QuerierRoute = ModuleName
 )
 
 var (

x/validator-vesting/internal/types/querier.go

@@ -0,0 +1,17 @@
+package types
+
+// Querier routes for the validator vesting module
+const (
+	QueryCirculatingSupply = "circulating-supply"
+	QueryTotalSupply       = "total-supply"
+)
+
+// QueryCirculatingSupplyParams defines the parameters necessary for querying for all Evidence.
+type BaseQueryParams struct {
+	Page  int `json:"page" yaml:"page"`
+	Limit int `json:"limit" yaml:"limit"`
+}
+
+func NewBaseQueryParams(page, limit int) BaseQueryParams {
+	return BaseQueryParams{Page: page, Limit: limit}
+}

x/validator-vesting/internal/types/validator_vesting_account.go

@@ -68,6 +68,11 @@ type ValidatorVestingAccount struct {
 	DebtAfterFailedVesting sdk.Coins             `json:"debt_after_failed_vesting" yaml:"debt_after_failed_vesting"`
 }
 
+// TotalCirculatingSupply represents the total circulating supply of Kava
+type TotalCirculatingSupply struct {
+	TotalSupply uint64 `json:"total_supply" yaml:"total_supply"` // total circulating supply
+}
+
 // NewValidatorVestingAccountRaw creates a new ValidatorVestingAccount object from BaseVestingAccount
 func NewValidatorVestingAccountRaw(bva *vestingtypes.BaseVestingAccount,
 	startTime int64, periods vestingtypes.Periods, validatorAddress sdk.ConsAddress, returnAddress sdk.AccAddress, signingThreshold int64) *ValidatorVestingAccount {

x/validator-vesting/module.go

@@ -13,6 +13,8 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/module"
 	sim "github.com/cosmos/cosmos-sdk/x/simulation"
+	"github.com/kava-labs/kava/x/validator-vesting/client/cli"
+	"github.com/kava-labs/kava/x/validator-vesting/client/rest"
 	"github.com/kava-labs/kava/x/validator-vesting/internal/types"
 	"github.com/kava-labs/kava/x/validator-vesting/simulation"
 )
@@ -52,13 +54,17 @@ func (AppModuleBasic) ValidateGenesis(bz json.RawMessage) error {
 }
 
 // RegisterRESTRoutes registers no REST routes for the crisis module.
-func (AppModuleBasic) RegisterRESTRoutes(_ context.CLIContext, _ *mux.Router) {}
+func (AppModuleBasic) RegisterRESTRoutes(ctx context.CLIContext, rtr *mux.Router) {
+	rest.RegisterRoutes(ctx, rtr)
+}
 
 // GetTxCmd returns no root tx command for the validator-vesting module.
 func (AppModuleBasic) GetTxCmd(_ *codec.Codec) *cobra.Command { return nil }
 
 // GetQueryCmd returns no root query command for the validator-vesting module.
-func (AppModuleBasic) GetQueryCmd(_ *codec.Codec) *cobra.Command { return nil }
+func (AppModuleBasic) GetQueryCmd(cdc *codec.Codec) *cobra.Command {
+	return cli.GetQueryCmd(StoreKey, cdc)
+}
 
 // AppModuleSimulation defines the module simulation functions used by the auth module.
 type AppModuleSimulation struct{}
@@ -112,12 +118,12 @@ func (AppModule) NewHandler() sdk.Handler { return nil }
 
 // QuerierRoute returns the auth module's querier route name.
 func (AppModule) QuerierRoute() string {
-	return ""
+	return ModuleName
 }
 
 // NewQuerierHandler returns the auth module sdk.Querier.
 func (am AppModule) NewQuerierHandler() sdk.Querier {
-	return nil
+	return NewQuerier(am.keeper)
 }
 
 // InitGenesis performs genesis initialization for the auth module. It returns