mirror of
https://github.com/0glabs/0g-chain.git
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76 lines
2.5 KiB
Go
76 lines
2.5 KiB
Go
package keeper
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import (
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sdkmath "cosmossdk.io/math"
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"github.com/0glabs/0g-chain/x/precisebank/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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// GetBalance returns the balance of a specific denom for an address. This will
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// return the extended balance for the ExtendedCoinDenom, and the regular
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// balance for all other denoms.
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func (k Keeper) GetBalance(
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ctx sdk.Context,
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addr sdk.AccAddress,
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denom string,
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) sdk.Coin {
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// Module balance should display as empty for extended denom. Module
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// balances are **only** for the reserve which backs the fractional
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// balances. Returning the backing balances if querying extended denom would
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// result in a double counting of the fractional balances.
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if denom == types.ExtendedCoinDenom && addr.Equals(k.ak.GetModuleAddress(types.ModuleName)) {
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return sdk.NewCoin(denom, sdkmath.ZeroInt())
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}
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// Pass through to x/bank for denoms except ExtendedCoinDenom
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if denom != types.ExtendedCoinDenom {
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return k.bk.GetBalance(ctx, addr, denom)
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}
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// x/bank for integer balance - full balance, including locked
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integerCoins := k.bk.GetBalance(ctx, addr, types.IntegerCoinDenom)
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// x/precisebank for fractional balance
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fractionalAmount := k.GetFractionalBalance(ctx, addr)
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// (Integer * ConversionFactor) + Fractional
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fullAmount := integerCoins.
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Amount.
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Mul(types.ConversionFactor()).
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Add(fractionalAmount)
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return sdk.NewCoin(types.ExtendedCoinDenom, fullAmount)
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}
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// SpendableCoins returns the total balances of spendable coins for an account
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// by address. If the account has no spendable coins, an empty Coins slice is
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// returned.
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func (k Keeper) SpendableCoin(
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ctx sdk.Context,
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addr sdk.AccAddress,
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denom string,
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) sdk.Coin {
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// Same as GetBalance, extended denom balances are transparent to consumers.
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if denom == types.ExtendedCoinDenom && addr.Equals(k.ak.GetModuleAddress(types.ModuleName)) {
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return sdk.NewCoin(denom, sdkmath.ZeroInt())
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}
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// Pass through to x/bank for denoms except ExtendedCoinDenom
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if denom != types.ExtendedCoinDenom {
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return k.bk.SpendableCoin(ctx, addr, denom)
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}
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// x/bank for integer balance - excluding locked
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integerCoin := k.bk.SpendableCoin(ctx, addr, types.IntegerCoinDenom)
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// x/precisebank for fractional balance
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fractionalAmount := k.GetFractionalBalance(ctx, addr)
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// Spendable = (Integer * ConversionFactor) + Fractional
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fullAmount := integerCoin.Amount.
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Mul(types.ConversionFactor()).
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Add(fractionalAmount)
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return sdk.NewCoin(types.ExtendedCoinDenom, fullAmount)
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}
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