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025b7b2cdb
- Validate total fractional amounts in genesis type - Validate against fractional balances such that `(sum(balances) + remainder) % conversionFactor == 0` - Add new utility type `SplitBalance` for splitting up full balances into each
58 lines
1.8 KiB
Go
58 lines
1.8 KiB
Go
package precisebank
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import (
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"fmt"
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sdkmath "cosmossdk.io/math"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/kava-labs/kava/x/precisebank/keeper"
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"github.com/kava-labs/kava/x/precisebank/types"
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)
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// InitGenesis initializes the store state from a genesis state.
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func InitGenesis(
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ctx sdk.Context,
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keeper keeper.Keeper,
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ak types.AccountKeeper,
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bk types.BankKeeper,
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gs *types.GenesisState,
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) {
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// Ensure the genesis state is valid
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if err := gs.Validate(); err != nil {
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panic(fmt.Sprintf("failed to validate %s genesis state: %s", types.ModuleName, err))
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}
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// Initialize module account
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if moduleAcc := ak.GetModuleAccount(ctx, types.ModuleName); moduleAcc == nil {
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panic(fmt.Sprintf("%s module account has not been set", types.ModuleName))
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}
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// Check module balance matches sum of fractional balances + remainder
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// This is always a whole integer amount, as previously verified in
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// GenesisState.Validate()
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totalAmt := gs.TotalAmountWithRemainder()
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moduleAddr := ak.GetModuleAddress(types.ModuleName)
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moduleBal := bk.GetBalance(ctx, moduleAddr, types.IntegerCoinDenom)
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moduleBalExtended := moduleBal.Amount.Mul(types.ConversionFactor())
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// Compare balances in full precise extended amounts
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if !totalAmt.Equal(moduleBalExtended) {
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panic(fmt.Sprintf(
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"module account balance does not match sum of fractional balances and remainder, balance is %s but expected %v%s (%v%s)",
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moduleBal,
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totalAmt, types.ExtendedCoinDenom,
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totalAmt.Quo(types.ConversionFactor()), types.IntegerCoinDenom,
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))
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}
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// TODO: After keeper methods are implemented
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// - Set account FractionalBalances
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}
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// ExportGenesis returns a GenesisState for a given context and keeper.
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func ExportGenesis(ctx sdk.Context, keeper keeper.Keeper) *types.GenesisState {
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return types.NewGenesisState(types.FractionalBalances{}, sdkmath.ZeroInt())
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}
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