0g-chain/x/hard/keeper/grpc_query.go

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package keeper
import (
"context"
"github.com/cosmos/cosmos-sdk/client"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/cosmos/cosmos-sdk/types/query"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/kava-labs/kava/x/hard/types"
)
type queryServer struct {
keeper Keeper
accountKeeper types.AccountKeeper
bankKeeper types.BankKeeper
}
// NewQueryServerImpl creates a new server for handling gRPC queries.
func NewQueryServerImpl(keeper Keeper, ak types.AccountKeeper, bk types.BankKeeper) types.QueryServer {
return &queryServer{
keeper: keeper,
accountKeeper: ak,
bankKeeper: bk,
}
}
var _ types.QueryServer = queryServer{}
func (s queryServer) Params(ctx context.Context, req *types.QueryParamsRequest) (*types.QueryParamsResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
// Get params
params := s.keeper.GetParams(sdkCtx)
return &types.QueryParamsResponse{
Params: params,
}, nil
}
func (s queryServer) Accounts(ctx context.Context, req *types.QueryAccountsRequest) (*types.QueryAccountsResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
macc := s.accountKeeper.GetModuleAccount(sdkCtx, types.ModuleAccountName)
accounts := []authtypes.ModuleAccount{
*macc.(*authtypes.ModuleAccount),
}
return &types.QueryAccountsResponse{
Accounts: accounts,
}, nil
}
func (s queryServer) Deposits(ctx context.Context, req *types.QueryDepositsRequest) (*types.QueryDepositsResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
hasDenom := len(req.Denom) > 0
hasOwner := len(req.Owner) > 0
var owner sdk.AccAddress
var err error
if hasOwner {
owner, err = sdk.AccAddressFromBech32(req.Owner)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, err.Error())
}
}
var deposits types.Deposits
switch {
case hasOwner && hasDenom:
deposit, found := s.keeper.GetSyncedDeposit(sdkCtx, owner)
if found {
for _, coin := range deposit.Amount {
if coin.Denom == req.Denom {
deposits = append(deposits, deposit)
}
}
}
case hasOwner:
deposit, found := s.keeper.GetSyncedDeposit(sdkCtx, owner)
if found {
deposits = append(deposits, deposit)
}
case hasDenom:
s.keeper.IterateDeposits(sdkCtx, func(deposit types.Deposit) (stop bool) {
if deposit.Amount.AmountOf(req.Denom).IsPositive() {
deposits = append(deposits, deposit)
}
return false
})
default:
s.keeper.IterateDeposits(sdkCtx, func(deposit types.Deposit) (stop bool) {
deposits = append(deposits, deposit)
return false
})
}
// If owner param was specified then deposits array already contains the user's synced deposit
if hasOwner {
return &types.QueryDepositsResponse{
Deposits: deposits.ToResponse(),
Pagination: nil,
}, nil
}
// Otherwise we need to simulate syncing of each deposit
var syncedDeposits types.Deposits
for _, deposit := range deposits {
syncedDeposit, _ := s.keeper.GetSyncedDeposit(sdkCtx, deposit.Depositor)
syncedDeposits = append(syncedDeposits, syncedDeposit)
}
// TODO: Use more optimal FilteredPaginate to directly iterate over the store
// and not fetch everything. This currently also ignores certain fields in
// the pagination request like Key, CountTotal, Reverse.
page, limit, err := query.ParsePagination(req.Pagination)
if err != nil {
return nil, err
}
start, end := client.Paginate(len(syncedDeposits), page, limit, 100)
if start < 0 || end < 0 {
syncedDeposits = types.Deposits{}
} else {
syncedDeposits = syncedDeposits[start:end]
}
return &types.QueryDepositsResponse{
Deposits: syncedDeposits.ToResponse(),
Pagination: nil,
}, nil
}
func (s queryServer) UnsyncedDeposits(ctx context.Context, req *types.QueryUnsyncedDepositsRequest) (*types.QueryUnsyncedDepositsResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
hasDenom := len(req.Denom) > 0
hasOwner := len(req.Owner) > 0
var owner sdk.AccAddress
var err error
if hasOwner {
owner, err = sdk.AccAddressFromBech32(req.Owner)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, err.Error())
}
}
var deposits types.Deposits
switch {
case hasOwner && hasDenom:
deposit, found := s.keeper.GetDeposit(sdkCtx, owner)
if found {
for _, coin := range deposit.Amount {
if coin.Denom == req.Denom {
deposits = append(deposits, deposit)
}
}
}
case hasOwner:
deposit, found := s.keeper.GetDeposit(sdkCtx, owner)
if found {
deposits = append(deposits, deposit)
}
case hasDenom:
s.keeper.IterateDeposits(sdkCtx, func(deposit types.Deposit) (stop bool) {
if deposit.Amount.AmountOf(req.Denom).IsPositive() {
deposits = append(deposits, deposit)
}
return false
})
default:
s.keeper.IterateDeposits(sdkCtx, func(deposit types.Deposit) (stop bool) {
deposits = append(deposits, deposit)
return false
})
}
page, limit, err := query.ParsePagination(req.Pagination)
if err != nil {
return nil, err
}
start, end := client.Paginate(len(deposits), page, limit, 100)
if start < 0 || end < 0 {
deposits = types.Deposits{}
} else {
deposits = deposits[start:end]
}
return &types.QueryUnsyncedDepositsResponse{
Deposits: deposits.ToResponse(),
Pagination: nil,
}, nil
}
func (s queryServer) Borrows(ctx context.Context, req *types.QueryBorrowsRequest) (*types.QueryBorrowsResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
hasDenom := len(req.Denom) > 0
hasOwner := len(req.Owner) > 0
var owner sdk.AccAddress
var err error
if hasOwner {
owner, err = sdk.AccAddressFromBech32(req.Owner)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, err.Error())
}
}
var borrows types.Borrows
switch {
case hasOwner && hasDenom:
borrow, found := s.keeper.GetSyncedBorrow(sdkCtx, owner)
if found {
for _, coin := range borrow.Amount {
if coin.Denom == req.Denom {
borrows = append(borrows, borrow)
}
}
}
case hasOwner:
borrow, found := s.keeper.GetSyncedBorrow(sdkCtx, owner)
if found {
borrows = append(borrows, borrow)
}
case hasDenom:
s.keeper.IterateBorrows(sdkCtx, func(borrow types.Borrow) (stop bool) {
if borrow.Amount.AmountOf(req.Denom).IsPositive() {
borrows = append(borrows, borrow)
}
return false
})
default:
s.keeper.IterateBorrows(sdkCtx, func(borrow types.Borrow) (stop bool) {
borrows = append(borrows, borrow)
return false
})
}
// If owner param was specified then borrows array already contains the user's synced borrow
if hasOwner {
return &types.QueryBorrowsResponse{
Borrows: borrows.ToResponse(),
Pagination: nil,
}, nil
}
// Otherwise we need to simulate syncing of each borrow
var syncedBorrows types.Borrows
for _, borrow := range borrows {
syncedBorrow, _ := s.keeper.GetSyncedBorrow(sdkCtx, borrow.Borrower)
syncedBorrows = append(syncedBorrows, syncedBorrow)
}
page, limit, err := query.ParsePagination(req.Pagination)
if err != nil {
return nil, err
}
start, end := client.Paginate(len(syncedBorrows), page, limit, 100)
if start < 0 || end < 0 {
syncedBorrows = types.Borrows{}
} else {
syncedBorrows = syncedBorrows[start:end]
}
return &types.QueryBorrowsResponse{
Borrows: syncedBorrows.ToResponse(),
}, nil
}
func (s queryServer) UnsyncedBorrows(ctx context.Context, req *types.QueryUnsyncedBorrowsRequest) (*types.QueryUnsyncedBorrowsResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
hasDenom := len(req.Denom) > 0
hasOwner := len(req.Owner) > 0
var owner sdk.AccAddress
var err error
if hasOwner {
owner, err = sdk.AccAddressFromBech32(req.Owner)
if err != nil {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, err.Error())
}
}
var borrows types.Borrows
switch {
case hasOwner && hasDenom:
borrow, found := s.keeper.GetBorrow(sdkCtx, owner)
if found {
for _, coin := range borrow.Amount {
if coin.Denom == req.Denom {
borrows = append(borrows, borrow)
}
}
}
case hasOwner:
borrow, found := s.keeper.GetBorrow(sdkCtx, owner)
if found {
borrows = append(borrows, borrow)
}
case hasDenom:
s.keeper.IterateBorrows(sdkCtx, func(borrow types.Borrow) (stop bool) {
if borrow.Amount.AmountOf(req.Denom).IsPositive() {
borrows = append(borrows, borrow)
}
return false
})
default:
s.keeper.IterateBorrows(sdkCtx, func(borrow types.Borrow) (stop bool) {
borrows = append(borrows, borrow)
return false
})
}
page, limit, err := query.ParsePagination(req.Pagination)
if err != nil {
return nil, err
}
start, end := client.Paginate(len(borrows), page, limit, 100)
if start < 0 || end < 0 {
borrows = types.Borrows{}
} else {
borrows = borrows[start:end]
}
return &types.QueryUnsyncedBorrowsResponse{
Borrows: borrows.ToResponse(),
Pagination: nil,
}, nil
}
func (s queryServer) TotalBorrowed(ctx context.Context, req *types.QueryTotalBorrowedRequest) (*types.QueryTotalBorrowedResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
borrowedCoins, found := s.keeper.GetBorrowedCoins(sdkCtx)
if !found {
// Use empty coins instead of returning an error
borrowedCoins = sdk.NewCoins()
}
// If user specified a denom only return coins of that denom type
if len(req.Denom) > 0 {
borrowedCoins = sdk.NewCoins(sdk.NewCoin(req.Denom, borrowedCoins.AmountOf(req.Denom)))
}
return &types.QueryTotalBorrowedResponse{
BorrowedCoins: borrowedCoins,
}, nil
}
func (s queryServer) TotalDeposited(ctx context.Context, req *types.QueryTotalDepositedRequest) (*types.QueryTotalDepositedResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
suppliedCoins, found := s.keeper.GetSuppliedCoins(sdkCtx)
if !found {
// Use empty coins instead of returning an error
suppliedCoins = sdk.NewCoins()
}
// If user specified a denom only return coins of that denom type
if len(req.Denom) > 0 {
suppliedCoins = sdk.NewCoins(sdk.NewCoin(req.Denom, suppliedCoins.AmountOf(req.Denom)))
}
return &types.QueryTotalDepositedResponse{
SuppliedCoins: suppliedCoins,
}, nil
}
func (s queryServer) InterestRate(ctx context.Context, req *types.QueryInterestRateRequest) (*types.QueryInterestRateResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
var moneyMarketInterestRates types.MoneyMarketInterestRates
var moneyMarkets types.MoneyMarkets
if len(req.Denom) > 0 {
moneyMarket, found := s.keeper.GetMoneyMarket(sdkCtx, req.Denom)
if !found {
return nil, types.ErrMoneyMarketNotFound
}
moneyMarkets = append(moneyMarkets, moneyMarket)
} else {
moneyMarkets = s.keeper.GetAllMoneyMarkets(sdkCtx)
}
// Calculate the borrow and supply APY interest rates for each money market
for _, moneyMarket := range moneyMarkets {
denom := moneyMarket.Denom
macc := s.accountKeeper.GetModuleAccount(sdkCtx, types.ModuleName)
cash := s.bankKeeper.GetBalance(sdkCtx, macc.GetAddress(), denom).Amount
borrowed := sdk.NewCoin(denom, sdk.ZeroInt())
borrowedCoins, foundBorrowedCoins := s.keeper.GetBorrowedCoins(sdkCtx)
if foundBorrowedCoins {
borrowed = sdk.NewCoin(denom, borrowedCoins.AmountOf(denom))
}
reserves, foundReserves := s.keeper.GetTotalReserves(sdkCtx)
if !foundReserves {
reserves = sdk.NewCoins()
}
// CalculateBorrowRate calculates the current interest rate based on utilization (the fraction of supply that has ien borrowed)
borrowAPY, err := CalculateBorrowRate(moneyMarket.InterestRateModel, sdk.NewDecFromInt(cash), sdk.NewDecFromInt(borrowed.Amount), sdk.NewDecFromInt(reserves.AmountOf(denom)))
if err != nil {
return nil, err
}
utilRatio := CalculateUtilizationRatio(sdk.NewDecFromInt(cash), sdk.NewDecFromInt(borrowed.Amount), sdk.NewDecFromInt(reserves.AmountOf(denom)))
fullSupplyAPY := borrowAPY.Mul(utilRatio)
realSupplyAPY := fullSupplyAPY.Mul(sdk.OneDec().Sub(moneyMarket.ReserveFactor))
moneyMarketInterestRate := types.MoneyMarketInterestRate{
Denom: denom,
SupplyInterestRate: realSupplyAPY.String(),
BorrowInterestRate: borrowAPY.String(),
}
moneyMarketInterestRates = append(moneyMarketInterestRates, moneyMarketInterestRate)
}
return &types.QueryInterestRateResponse{
InterestRates: moneyMarketInterestRates,
}, nil
}
func (s queryServer) Reserves(ctx context.Context, req *types.QueryReservesRequest) (*types.QueryReservesResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
reserveCoins, found := s.keeper.GetTotalReserves(sdkCtx)
if !found {
reserveCoins = sdk.Coins{}
}
// If user specified a denom only return coins of that denom type
if len(req.Denom) > 0 {
reserveCoins = sdk.NewCoins(sdk.NewCoin(req.Denom, reserveCoins.AmountOf(req.Denom)))
}
return &types.QueryReservesResponse{
Amount: reserveCoins,
}, nil
}
func (s queryServer) InterestFactors(ctx context.Context, req *types.QueryInterestFactorsRequest) (*types.QueryInterestFactorsResponse, error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
sdkCtx := sdk.UnwrapSDKContext(ctx)
var interestFactors types.InterestFactors
if len(req.Denom) > 0 {
// Fetch supply/borrow interest factors for a single denom
interestFactor := types.InterestFactor{}
interestFactor.Denom = req.Denom
supplyInterestFactor, found := s.keeper.GetSupplyInterestFactor(sdkCtx, req.Denom)
if found {
interestFactor.SupplyInterestFactor = supplyInterestFactor.String()
}
borrowInterestFactor, found := s.keeper.GetBorrowInterestFactor(sdkCtx, req.Denom)
if found {
interestFactor.BorrowInterestFactor = borrowInterestFactor.String()
}
interestFactors = append(interestFactors, interestFactor)
} else {
interestFactorMap := make(map[string]types.InterestFactor)
// Populate mapping with supply interest factors
s.keeper.IterateSupplyInterestFactors(sdkCtx, func(denom string, factor sdk.Dec) (stop bool) {
interestFactor := types.InterestFactor{Denom: denom, SupplyInterestFactor: factor.String()}
interestFactorMap[denom] = interestFactor
return false
})
// Populate mapping with borrow interest factors
s.keeper.IterateBorrowInterestFactors(sdkCtx, func(denom string, factor sdk.Dec) (stop bool) {
interestFactor, ok := interestFactorMap[denom]
if !ok {
newInterestFactor := types.InterestFactor{Denom: denom, BorrowInterestFactor: factor.String()}
interestFactorMap[denom] = newInterestFactor
} else {
interestFactor.BorrowInterestFactor = factor.String()
interestFactorMap[denom] = interestFactor
}
return false
})
// Translate mapping to slice
for _, val := range interestFactorMap {
interestFactors = append(interestFactors, val)
}
}
return &types.QueryInterestFactorsResponse{
InterestFactors: interestFactors,
}, nil
}