0g-chain/x/hvt/keeper/deposit.go
Kevin Davis fe38c4aa43
harvest v1 (#658)
* wip: and types and keeper methods

* add keeper tests

* add client

* add spec and events

* respond to review comments

* apply suggestions from review

* feat: add test for validator vesting case

* use int64 for multiplier type

* remove incentive changes
2020-09-21 17:08:43 -04:00

137 lines
4.2 KiB
Go

package keeper
import (
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
supplyExported "github.com/cosmos/cosmos-sdk/x/supply/exported"
"github.com/kava-labs/kava/x/hvt/types"
)
// Deposit deposit
func (k Keeper) Deposit(ctx sdk.Context, depositor sdk.AccAddress, amount sdk.Coin, depositType types.DepositType) error {
err := k.ValidateDeposit(ctx, amount, depositType)
if err != nil {
return err
}
switch depositType {
case types.LP:
err = k.supplyKeeper.SendCoinsFromAccountToModule(ctx, depositor, types.ModuleAccountName, sdk.NewCoins(amount))
default:
return sdkerrors.Wrap(types.ErrInvalidDepositType, string(depositType))
}
if err != nil {
return err
}
deposit, found := k.GetDeposit(ctx, depositor, amount.Denom, depositType)
if !found {
deposit = types.NewDeposit(depositor, amount, depositType)
} else {
deposit.Amount = deposit.Amount.Add(amount)
}
k.SetDeposit(ctx, deposit)
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeHarvestDeposit,
sdk.NewAttribute(sdk.AttributeKeyAmount, amount.String()),
sdk.NewAttribute(types.AttributeKeyDepositor, deposit.Depositor.String()),
sdk.NewAttribute(types.AttributeKeyDepositDenom, deposit.Amount.Denom),
sdk.NewAttribute(types.AttributeKeyDepositType, string(depositType)),
),
)
return nil
}
// ValidateDeposit validates a deposit
func (k Keeper) ValidateDeposit(ctx sdk.Context, amount sdk.Coin, depositType types.DepositType) error {
var err error
switch depositType {
case types.LP:
err = k.ValidateLPDeposit(ctx, amount, depositType)
default:
return sdkerrors.Wrap(types.ErrInvalidDepositType, string(depositType))
}
if err != nil {
return err
}
return nil
}
// ValidateLPDeposit validates that a liquidity provider deposit
func (k Keeper) ValidateLPDeposit(ctx sdk.Context, amount sdk.Coin, depositType types.DepositType) error {
params := k.GetParams(ctx)
for _, lps := range params.LiquidityProviderSchedules {
if lps.DepositDenom == amount.Denom {
return nil
}
}
return sdkerrors.Wrapf(types.ErrInvalidDepositDenom, "liquidity provider denom %s not found", amount.Denom)
}
// Withdraw returns some or all of a deposit back to original depositor
func (k Keeper) Withdraw(ctx sdk.Context, depositor sdk.AccAddress, amount sdk.Coin, depositType types.DepositType) error {
deposit, found := k.GetDeposit(ctx, depositor, amount.Denom, depositType)
if !found {
return sdkerrors.Wrapf(types.ErrDepositNotFound, "no %s %s deposit found for %s", amount.Denom, depositType, depositor)
}
if !deposit.Amount.IsGTE(amount) {
return sdkerrors.Wrapf(types.ErrInvaliWithdrawAmount, "%s>%s", amount, deposit.Amount)
}
var err error
switch depositType {
case types.LP:
err = k.supplyKeeper.SendCoinsFromModuleToAccount(ctx, types.ModuleAccountName, depositor, sdk.NewCoins(amount))
default:
return sdkerrors.Wrap(types.ErrInvalidDepositType, string(depositType))
}
if err != nil {
return err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeHarvestWithdrawal,
sdk.NewAttribute(sdk.AttributeKeyAmount, amount.String()),
sdk.NewAttribute(types.AttributeKeyDepositor, depositor.String()),
sdk.NewAttribute(types.AttributeKeyDepositDenom, amount.Denom),
sdk.NewAttribute(types.AttributeKeyDepositType, string(depositType)),
),
)
if deposit.Amount.IsEqual(amount) {
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeDeleteHarvestDeposit,
sdk.NewAttribute(types.AttributeKeyDepositor, depositor.String()),
sdk.NewAttribute(types.AttributeKeyDepositDenom, amount.Denom),
sdk.NewAttribute(types.AttributeKeyDepositType, string(depositType)),
),
)
k.DeleteDeposit(ctx, deposit)
return nil
}
deposit.Amount = deposit.Amount.Sub(amount)
k.SetDeposit(ctx, deposit)
return nil
}
// GetTotalDeposited returns the total amount deposited for the input deposit type and deposit denom
func (k Keeper) GetTotalDeposited(ctx sdk.Context, depositType types.DepositType, depositDenom string) (total sdk.Int) {
var macc supplyExported.ModuleAccountI
switch depositType {
case types.LP:
macc = k.supplyKeeper.GetModuleAccount(ctx, types.ModuleAccountName)
}
return macc.GetCoins().AmountOf(depositDenom)
}