120 lines
3.5 KiB
Go
120 lines
3.5 KiB
Go
package keeper
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import (
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"fmt"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/mint/types"
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paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
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)
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// Keeper of the mint store
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type Keeper struct {
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cdc codec.Marshaler
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storeKey sdk.StoreKey
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paramSpace paramtypes.Subspace
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stakingKeeper types.StakingKeeper
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bankKeeper types.BankKeeper
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feeCollectorName string
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}
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// NewKeeper creates a new mint Keeper instance
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func NewKeeper(
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cdc codec.Marshaler, key sdk.StoreKey, paramSpace paramtypes.Subspace,
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sk types.StakingKeeper, ak types.AccountKeeper, bk types.BankKeeper,
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feeCollectorName string,
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) Keeper {
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// ensure mint module account is set
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if addr := ak.GetModuleAddress(types.ModuleName); addr == nil {
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panic("the mint module account has not been set")
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}
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// set KeyTable if it has not already been set
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if !paramSpace.HasKeyTable() {
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paramSpace = paramSpace.WithKeyTable(types.ParamKeyTable())
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}
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return Keeper{
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cdc: cdc,
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storeKey: key,
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paramSpace: paramSpace,
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stakingKeeper: sk,
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bankKeeper: bk,
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feeCollectorName: feeCollectorName,
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}
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}
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//______________________________________________________________________
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// Logger returns a module-specific logger.
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func (k Keeper) Logger(ctx sdk.Context) log.Logger {
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return ctx.Logger().With("module", fmt.Sprintf("x/%s", types.ModuleName))
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}
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// get the minter
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func (k Keeper) GetMinter(ctx sdk.Context) (minter types.Minter) {
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store := ctx.KVStore(k.storeKey)
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b := store.Get(types.MinterKey)
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if b == nil {
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panic("stored minter should not have been nil")
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}
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k.cdc.MustUnmarshalBinaryBare(b, &minter)
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return
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}
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// set the minter
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func (k Keeper) SetMinter(ctx sdk.Context, minter types.Minter) {
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store := ctx.KVStore(k.storeKey)
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b := k.cdc.MustMarshalBinaryBare(&minter)
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store.Set(types.MinterKey, b)
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}
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//______________________________________________________________________
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// GetParams returns the total set of minting parameters.
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func (k Keeper) GetParams(ctx sdk.Context) (params types.Params) {
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k.paramSpace.GetParamSet(ctx, ¶ms)
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return params
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}
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// SetParams sets the total set of minting parameters.
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func (k Keeper) SetParams(ctx sdk.Context, params types.Params) {
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k.paramSpace.SetParamSet(ctx, ¶ms)
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}
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//______________________________________________________________________
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// StakingTokenSupply implements an alias call to the underlying staking keeper's
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// StakingTokenSupply to be used in BeginBlocker.
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func (k Keeper) StakingTokenSupply(ctx sdk.Context) sdk.Int {
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return k.stakingKeeper.StakingTokenSupply(ctx)
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}
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// BondedRatio implements an alias call to the underlying staking keeper's
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// BondedRatio to be used in BeginBlocker.
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func (k Keeper) BondedRatio(ctx sdk.Context) sdk.Dec {
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return k.stakingKeeper.BondedRatio(ctx)
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}
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// MintCoins implements an alias call to the underlying supply keeper's
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// MintCoins to be used in BeginBlocker.
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func (k Keeper) MintCoins(ctx sdk.Context, newCoins sdk.Coins) error {
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if newCoins.Empty() {
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// skip as no coins need to be minted
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return nil
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}
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return k.bankKeeper.MintCoins(ctx, types.ModuleName, newCoins)
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}
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// AddCollectedFees implements an alias call to the underlying supply keeper's
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// AddCollectedFees to be used in BeginBlocker.
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func (k Keeper) AddCollectedFees(ctx sdk.Context, fees sdk.Coins) error {
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return k.bankKeeper.SendCoinsFromModuleToModule(ctx, types.ModuleName, k.feeCollectorName, fees)
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}
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