mirror of
https://github.com/0glabs/0g-chain.git
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49d62dd076
* initial feature scaffolding * implement interest keeper logic * basic AccrueInterest * accrue interest on borrow * update borrow index formula * update sample reserve factor * move AccrueInterest to begin blocker * refactor interest rate updates for accrue interest * use interest rate model from store * refactor begin blocker state machine * add reserve factor to interest model params * update comment * store money market instead of interest rate models * update test suite * use BorrowedCoins store key * update public functions and alias * unit tests, keeper test scaffolding * demo panic * address revisions * add 'normal no jump' test case * spy = 1 + borrow rate * update comment * APYToSPY unit test * per user borrow index list * interest keeper test * test: interest applied on successive borrows * varied snapshot times * test: multiple, varied snapshots * address revisions * add pending interest before validating new borrow * update makefile * address revisions * fix test
104 lines
3.1 KiB
Go
104 lines
3.1 KiB
Go
package keeper
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import (
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sdk "github.com/cosmos/cosmos-sdk/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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supplyExported "github.com/cosmos/cosmos-sdk/x/supply/exported"
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"github.com/kava-labs/kava/x/harvest/types"
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)
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// Deposit deposit
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func (k Keeper) Deposit(ctx sdk.Context, depositor sdk.AccAddress, amount sdk.Coin) error {
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err := k.ValidateDeposit(ctx, amount)
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if err != nil {
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return err
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}
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err = k.supplyKeeper.SendCoinsFromAccountToModule(ctx, depositor, types.ModuleAccountName, sdk.NewCoins(amount))
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if err != nil {
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return err
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}
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deposit, found := k.GetDeposit(ctx, depositor, amount.Denom)
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if !found {
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deposit = types.NewDeposit(depositor, amount)
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} else {
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deposit.Amount = deposit.Amount.Add(amount)
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}
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k.SetDeposit(ctx, deposit)
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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types.EventTypeHarvestDeposit,
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sdk.NewAttribute(sdk.AttributeKeyAmount, amount.String()),
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sdk.NewAttribute(types.AttributeKeyDepositor, deposit.Depositor.String()),
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sdk.NewAttribute(types.AttributeKeyDepositDenom, deposit.Amount.Denom),
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),
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)
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return nil
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}
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// ValidateDeposit validates a deposit
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func (k Keeper) ValidateDeposit(ctx sdk.Context, amount sdk.Coin) error {
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params := k.GetParams(ctx)
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for _, lps := range params.LiquidityProviderSchedules {
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if lps.DepositDenom == amount.Denom {
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return nil
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}
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}
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return sdkerrors.Wrapf(types.ErrInvalidDepositDenom, "liquidity provider denom %s not found", amount.Denom)
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}
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// Withdraw returns some or all of a deposit back to original depositor
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func (k Keeper) Withdraw(ctx sdk.Context, depositor sdk.AccAddress, amount sdk.Coin) error {
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deposit, found := k.GetDeposit(ctx, depositor, amount.Denom)
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if !found {
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return sdkerrors.Wrapf(types.ErrDepositNotFound, "no %s deposit found for %s", amount.Denom, depositor)
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}
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if !deposit.Amount.IsGTE(amount) {
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return sdkerrors.Wrapf(types.ErrInvalidWithdrawAmount, "%s>%s", amount, deposit.Amount)
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}
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err := k.supplyKeeper.SendCoinsFromModuleToAccount(ctx, types.ModuleAccountName, depositor, sdk.NewCoins(amount))
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if err != nil {
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return err
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}
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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types.EventTypeHarvestWithdrawal,
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sdk.NewAttribute(sdk.AttributeKeyAmount, amount.String()),
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sdk.NewAttribute(types.AttributeKeyDepositor, depositor.String()),
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sdk.NewAttribute(types.AttributeKeyDepositDenom, amount.Denom),
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),
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)
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if deposit.Amount.IsEqual(amount) {
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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types.EventTypeDeleteHarvestDeposit,
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sdk.NewAttribute(types.AttributeKeyDepositor, depositor.String()),
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sdk.NewAttribute(types.AttributeKeyDepositDenom, amount.Denom),
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),
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)
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k.DeleteDeposit(ctx, deposit)
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return nil
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}
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deposit.Amount = deposit.Amount.Sub(amount)
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k.SetDeposit(ctx, deposit)
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return nil
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}
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// GetTotalDeposited returns the total amount deposited for the input deposit type and deposit denom
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func (k Keeper) GetTotalDeposited(ctx sdk.Context, depositDenom string) (total sdk.Int) {
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var macc supplyExported.ModuleAccountI
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macc = k.supplyKeeper.GetModuleAccount(ctx, types.ModuleAccountName)
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return macc.GetCoins().AmountOf(depositDenom)
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}
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