0g-chain/x/earn/keeper/vault_share.go
drklee3 f757d7ab15
feat: upgrade to Cosmos v0.46 (#1477)
* Update cosmos-sdk to v0.45.10-kava

* Add RegisterNodeService to app

* Update cosmos proto files

* Update cosmos proto files

* Use tagged v0.45.10-kava-v0.19-0.21 cosmos version

* update x/auth/legacy to x/auth/migrations

* Delete rest packages and registration

* Remove rest from proposal handlers

* Remove legacy types referencing removed sdk types

* Remove legacy tx broadcast handler

* Update incentive staking hooks to return error

* Remove grpc replace directive, use new grpc version

* Fix storetypes import

* Update tally_handler with updated gov types

* Delete legacy types

* Use new gov default config

* Update RegisterTendermintService params

Signed-off-by: drklee3 <derrick@dlee.dev>

* Replace sdk.StoreKey with storetypes.StoreKey

* Replace sdk.Int#ToDec with sdk.NewDecFromInt

* Replace sdk.NewUintFromBigInt with sdkmath.NewUintFromBigInt

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update most intances of govtypes to govv1beta1

* Unpack coin slice for Coins#Sub and Coins#SafeSub

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update committee gov codec registration

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update migrate utils period_vesting Coins#Sub

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update Coin#Sub in community proposal handler

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update Coin#Sub, FundModuleAccount/FundAccount in banktestutil

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update community, earn, kavadist proposal gov registration

* Update evm cli client EthSecp256k1Type check

* AccAddressFromHex to AccAddressFromHexUnsafe

* Add mint DefaultInflationCalculationFn to earn test

* Update use of removed staking.NewHandler

* Rename FlagIAVLFastNode -> FlagDisableIAVLFastNode

* cmd: Update new snapshot app option

Signed-off-by: drklee3 <derrick@dlee.dev>

* cmd: Add tendermint default config, use cosmos rpc status command

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update ethermint import path

github.com/tharsis/ethermint -> github.com/evmos/ethermint

* Upgrade ibc-go to v6

* Update proto dependencies

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update Tally handler test with new gov types

* Update helpers.GenTx -> helpers.GenSignedMockTx

* Update evmkeeper.NewKeeper params

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update ante authz, tests

* Add feemarket transient key, pass subspaces to evm/feemarket keepers

* Update new ante decorators

* Add new addModuleInitFlags to server commands

* Pass codec to keyring.New in genaccounts

* Pass codec to client keys add

* Add SendCoins to evmutil bank_keeper

* Use github.com/cosmos/iavl@v0.19.5

* Add ante HandlerOptions

* Add unimplemented SendCoins to evmutil bank keeper

Ethermint x/evm does not use this method

* Update init-new-chain script to disable post-london blocks

* Modify test genesis states to append 1 validator

* Update tally handler test to use string values

* Prevent querying balance for empty sdk.AccAddress in auction bidding test

* Set default bond denom to ukava

* Remove overwritten bank genesis total supply in committee proposal test

Signed-off-by: drklee3 <derrick@dlee.dev>

* Use ukava for testing staked balance

* Disable minting in community proposal handler test

Previously stake denom is used, which resulted in 0 minted coins

* Update hard APYToSPY test expected value

Increased iterations in sdk.ApproxRoot, updated closer to real value

* Fix NewDecCoinsFromCoins bug in incentive collectDerivativeStakingRewards

* Allow bkava earn incentive test values to match within small margin for rounding

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update invalid denom in issuance message coin validation

Colons are now valid in denoms

Signed-off-by: drklee3 <derrick@dlee.dev>

* Remove genesis validator in incentive delegation tests

* Update pricefeed market test for invalid denom

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update incentive delegator rewards test without genesis validator

Signed-off-by: drklee3 <derrick@dlee.dev>

* Add validator to export test

* Clear bank state in minting tests

Signed-off-by: drklee3 <derrick@dlee.dev>

* Remove validator for no stake tally test

Signed-off-by: drklee3 <derrick@dlee.dev>

* Clear incentive state before InitGenesis in incentive genesis export test

* Update swagger

Signed-off-by: drklee3 <derrick@dlee.dev>

* Update ethermint version to match replaced version

* Remove legacy swagger

* Add NewEthEmitEventDecorator

* Remove redundant func for AddModuleInitFlags

* Remove unused addBankBalanceForAddress func

* Add SetIAVLLazyLoading option to app cmd

* Use legacy.RegisterAminoMsg for committee msg concrete registration

* Remove unnecessary Amino field

* Add evm_util bankkeeper SendCoins comment

* Update test method ResetBankState to DeleteGenesisValidatorCoins to be more clear

* Validate incentive params.RewardsPerSecond to be non-zero

* Validate swap pools to disallow colons in token denoms

* Register all legacy amino types on gov modulecdc

* Remove redundant Comittee interface registration

* Pin goleveldb to v1.0.1-0.20210819022825-2ae1ddf74ef7

Causes failed to load state at height errors

* Update ethermint to new pinned version with minGasPrices parse error fix

* Update cosmos fork dependcy commit to include reverted account constructor patch

* Update Cosmos v0.46.11 and cometbft v0.34.27

* Bump minimum go version to 1.19

* Update tendermint proto

* Update internal testnet genesis

* Move NewCanTransferDecorator before NewEthGasConsumeDecorator

* Add hard borrow store tests (#1514)

* add store tests for Borrow type

* refactor Deposit tests to match

* Fix old bep3 tests (#1515)

* Update Ethermint to 1b17445 to fix duplicate proto registration

* Add custom status command to use snake_case and stdout

* Add SetInflation helper

* Reduce ambiguity with evm CanSignEthTx error

* Remove init genesis validator claim in test

* Add disabled evmante.NewMinGasPriceDecorator with x/feemarket note

* chore: use tagged versions for Cosmos and Ethermint forks

* update kvtool & increase wait for ibc transfer test

---------

Signed-off-by: drklee3 <derrick@dlee.dev>
Co-authored-by: Ruaridh <rhuairahrighairidh@users.noreply.github.com>
Co-authored-by: Robert Pirtle <astropirtle@gmail.com>
2023-04-03 20:08:45 -04:00

83 lines
2.8 KiB
Go

package keeper
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/kava-labs/kava/x/earn/types"
)
// ConvertToShares converts a given amount of tokens to shares.
func (k *Keeper) ConvertToShares(ctx sdk.Context, assets sdk.Coin) (types.VaultShare, error) {
totalShares, found := k.GetVaultTotalShares(ctx, assets.Denom)
if !found {
// No shares issued yet, so shares are issued 1:1
return types.NewVaultShare(assets.Denom, sdk.NewDecFromInt(assets.Amount)), nil
}
totalValue, err := k.GetVaultTotalValue(ctx, assets.Denom)
if err != nil {
return types.VaultShare{}, err
}
if totalValue.Amount.IsZero() {
return types.VaultShare{}, fmt.Errorf("total value of vault is zero")
}
// sharePrice = totalValue / totalShares
// issuedShares = assets / sharePrice
// issuedShares = assets / (totalValue / totalShares)
// = assets * (totalShares / totalValue)
// = (assets * totalShares) / totalValue
//
// Multiply by reciprocal of sharePrice to avoid two divisions and limit
// rounding to one time. Per-share price is also not used as there is a loss
// of precision.
// Division is done at the last step as there is a slight amount that is
// rounded down.
// For example:
// 100 * 100 / 105 == 10000 / 105 == 95.238095238095238095
// 100 * (100 / 105) == 100 * 0.952380952380952380 == 95.238095238095238000
// rounded down and truncated ^ loss of precision ^
issuedShares := sdk.NewDecFromInt(assets.Amount).Mul(totalShares.Amount).QuoTruncate(sdk.NewDecFromInt(totalValue.Amount))
if issuedShares.IsZero() {
return types.VaultShare{}, fmt.Errorf("share count is zero")
}
return types.NewVaultShare(assets.Denom, issuedShares), nil
}
// ConvertToAssets converts a given amount of shares to tokens.
func (k *Keeper) ConvertToAssets(ctx sdk.Context, share types.VaultShare) (sdk.Coin, error) {
totalVaultShares, found := k.GetVaultTotalShares(ctx, share.Denom)
if !found {
return sdk.Coin{}, fmt.Errorf("vault for %s not found", share.Denom)
}
totalValue, err := k.GetVaultTotalValue(ctx, share.Denom)
if err != nil {
return sdk.Coin{}, err
}
// percentOwnership := accShares / totalVaultShares
// accValue := totalValue * percentOwnership
// accValue := totalValue * accShares / totalVaultShares
// Division must be last to avoid rounding errors and properly truncate.
value := sdk.NewDecFromInt(totalValue.Amount).Mul(share.Amount).QuoTruncate(totalVaultShares.Amount)
return sdk.NewCoin(share.Denom, value.TruncateInt()), nil
}
// ShareIsDust returns true if the share value is less than 1 coin
func (k *Keeper) ShareIsDust(ctx sdk.Context, share types.VaultShare) (bool, error) {
coin, err := k.ConvertToAssets(ctx, share)
if err != nil {
return false, err
}
// Truncated int, becomes zero if < 1
return coin.IsZero(), nil
}