135 lines
3.6 KiB
Go
135 lines
3.6 KiB
Go
package keeper
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import (
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"fmt"
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"cosmossdk.io/math"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/cosmos/cosmos-sdk/codec"
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storetypes "github.com/cosmos/cosmos-sdk/store/types"
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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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)
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// Keeper of the mint store
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type Keeper struct {
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cdc codec.BinaryCodec
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storeKey storetypes.StoreKey
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stakingKeeper types.StakingKeeper
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bankKeeper types.BankKeeper
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feeCollectorName string
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// the address capable of executing a MsgUpdateParams message. Typically, this
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// should be the x/gov module account.
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authority 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.BinaryCodec,
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key storetypes.StoreKey,
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sk types.StakingKeeper,
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ak types.AccountKeeper,
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bk types.BankKeeper,
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feeCollectorName string,
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authority 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(fmt.Sprintf("the x/%s module account has not been set", types.ModuleName))
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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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stakingKeeper: sk,
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bankKeeper: bk,
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feeCollectorName: feeCollectorName,
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authority: authority,
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}
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}
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// GetAuthority returns the x/mint module's authority.
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func (k Keeper) GetAuthority() string {
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return k.authority
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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", "x/"+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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bz := store.Get(types.MinterKey)
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if bz == nil {
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panic("stored minter should not have been nil")
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}
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k.cdc.MustUnmarshal(bz, &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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bz := k.cdc.MustMarshal(&minter)
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store.Set(types.MinterKey, bz)
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}
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// SetParams sets the x/mint module parameters.
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func (k Keeper) SetParams(ctx sdk.Context, p types.Params) error {
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if err := p.Validate(); err != nil {
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return err
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}
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store := ctx.KVStore(k.storeKey)
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bz := k.cdc.MustMarshal(&p)
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store.Set(types.ParamsKey, bz)
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return nil
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}
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// GetParams returns the current x/mint module parameters.
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func (k Keeper) GetParams(ctx sdk.Context) (p types.Params) {
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store := ctx.KVStore(k.storeKey)
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bz := store.Get(types.ParamsKey)
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if bz == nil {
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return p
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}
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k.cdc.MustUnmarshal(bz, &p)
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return p
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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) math.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) math.LegacyDec {
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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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