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keeper.go
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keeper.go
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package keeper
import (
"cosmossdk.io/errors"
"fmt"
storetypes "github.com/cosmos/cosmos-sdk/store/types"
"time"
"github.com/tendermint/tendermint/libs/log"
"github.com/chain4energy/c4e-chain/x/cfeminter/types"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
)
type (
Keeper struct {
cdc codec.BinaryCodec
storeKey storetypes.StoreKey
memKey storetypes.StoreKey
bankKeeper types.BankKeeper
stakingKeeper types.StakingKeeper
collectorName string
authority string
}
)
func NewKeeper(
cdc codec.BinaryCodec,
storeKey,
memKey storetypes.StoreKey,
bankKeeper types.BankKeeper,
stakingKeeper types.StakingKeeper,
collectorName string,
authority string,
) *Keeper {
return &Keeper{
cdc: cdc,
storeKey: storeKey,
memKey: memKey,
bankKeeper: bankKeeper,
stakingKeeper: stakingKeeper,
collectorName: collectorName,
authority: authority,
}
}
func (k Keeper) GetCollectorName() string {
return k.collectorName
}
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", fmt.Sprintf("x/%s", types.ModuleName))
}
func (k Keeper) GetCurrentInflation(ctx sdk.Context) (sdk.Dec, error) {
minterState := k.GetMinterState(ctx)
params := k.GetParams(ctx)
currentMinter, previousMinter := getCurrentAndPreviousMinter(params.Minters, &minterState)
if currentMinter == nil {
k.Logger(ctx).Error("minter current sequence id not found error", "SequenceId", minterState.SequenceId)
return sdk.ZeroDec(), errors.Wrapf(sdkerrors.ErrNotFound, "minter current period for SequenceId %d not found", minterState.SequenceId)
}
var startTime time.Time
if previousMinter == nil {
startTime = params.StartTime
} else {
startTime = *previousMinter.EndTime
}
supply := k.bankKeeper.GetSupply(ctx, params.MintDenom)
result := currentMinter.CalculateInflation(supply.Amount, startTime, ctx.BlockHeader().Time)
k.Logger(ctx).Debug("get current inflation", "currentMinter", currentMinter.GetMinterJSON(), "previousMinter", previousMinter.GetMinterJSON(), "startTime",
startTime, "supply", supply, "blockTime", ctx.BlockHeader().Time, "result", result)
return result, nil
}
// MintCoins implements an alias call to the underlying supply keeper's
// MintCoins to be used in BeginBlocker.
func (k Keeper) MintCoins(ctx sdk.Context, newCoins sdk.Coins) error {
if newCoins.Empty() {
// skip as no coins need to be minted
return nil
}
return k.bankKeeper.MintCoins(ctx, types.ModuleName, newCoins)
}
// SendMintedCoins implements an alias call to the underlying supply keeper's
// SendMintedCoins to be used in BeginBlocker.
func (k Keeper) SendMintedCoins(ctx sdk.Context, fees sdk.Coins) error {
return k.bankKeeper.SendCoinsFromModuleToModule(ctx, types.ModuleName, k.collectorName, fees)
}
// BondedRatio implements an alias call to the underlying staking keeper's
// BondedRatio to be used in BeginBlocker.
func (k Keeper) BondedRatio(ctx sdk.Context) sdk.Dec {
return k.stakingKeeper.BondedRatio(ctx)
}