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pool_share.go
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pool_share.go
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package keeper
import (
"time"
"cosmossdk.io/math"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/elys-network/elys/x/amm/types"
atypes "github.com/elys-network/elys/x/assetprofile/types"
ptypes "github.com/elys-network/elys/x/parameter/types"
)
// MintPoolShareToAccount attempts to mint shares of a AMM denomination to the
// specified address returning an error upon failure. Shares are minted using
// the x/amm module account.
func (k Keeper) MintPoolShareToAccount(ctx sdk.Context, pool types.Pool, addr sdk.AccAddress, amount math.Int) error {
poolShareDenom := types.GetPoolShareDenom(pool.GetPoolId())
amt := sdk.NewCoins(sdk.NewCoin(poolShareDenom, amount))
err := k.bankKeeper.MintCoins(ctx, types.ModuleName, amt)
if err != nil {
return err
}
err = k.bankKeeper.SendCoinsFromModuleToAccount(ctx, types.ModuleName, addr, amt)
if err != nil {
return err
}
// All LP tokens minted should be committed to commitment module in order to make
// the liquidity provider gets rewarded.
// So deposit, and then commit
// Before commit LP token to commitment module, we should first register the new denom
// to assetProfile module.
_, found := k.assetProfileKeeper.GetEntry(ctx, poolShareDenom)
if !found {
// Set an entity to assetprofile
entry := atypes.Entry{
Authority: pool.Address,
BaseDenom: poolShareDenom,
Decimals: ptypes.BASE_DECIMAL,
Denom: poolShareDenom,
Path: "",
IbcChannelId: "",
IbcCounterpartyChannelId: "",
DisplayName: poolShareDenom,
DisplaySymbol: "",
Network: "",
Address: "",
ExternalSymbol: "",
TransferLimit: "",
Permissions: make([]string, 0),
UnitDenom: "",
IbcCounterpartyDenom: "",
IbcCounterpartyChainId: "",
CommitEnabled: true,
WithdrawEnabled: true,
}
k.assetProfileKeeper.SetEntry(ctx, entry)
}
// Commit LP token minted
lockUntil := uint64(0)
if pool.PoolParams.UseOracle {
lockUntil = uint64(ctx.BlockTime().Unix()) + uint64(time.Hour.Seconds())
}
err = k.commitmentKeeper.CommitLiquidTokens(ctx, addr, poolShareDenom, amount, lockUntil)
if err != nil {
return err
}
return nil
}
// BurnPoolShareFromAccount burns `amount` of the given pool's shares held by `addr`.
func (k Keeper) BurnPoolShareFromAccount(ctx sdk.Context, pool types.Pool, addr sdk.AccAddress, amount math.Int) error {
coin := sdk.NewCoin(types.GetPoolShareDenom(pool.GetPoolId()), amount)
coins := sdk.NewCoins(coin)
if err := k.bankKeeper.SendCoinsFromAccountToModule(ctx, addr, types.ModuleName, coins); err != nil {
return err
}
if err := k.bankKeeper.BurnCoins(ctx, types.ModuleName, coins); err != nil {
return err
}
return nil
}