/
msg_server_burn.go
65 lines (48 loc) · 1.72 KB
/
msg_server_burn.go
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package keeper
import (
"context"
"github.com/noble-assets/noble/v5/x/tokenfactory/types"
sdkerrors "cosmossdk.io/errors"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/bech32"
)
func (k msgServer) Burn(goCtx context.Context, msg *types.MsgBurn) (*types.MsgBurnResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
return k.Keeper.Burn(ctx, msg)
}
func (k Keeper) Burn(ctx sdk.Context, msg *types.MsgBurn) (*types.MsgBurnResponse, error) {
_, found := k.GetMinters(ctx, msg.From)
if !found {
return nil, sdkerrors.Wrapf(types.ErrBurn, "%v: you are not a minter", types.ErrUnauthorized)
}
_, addressBz, err := bech32.DecodeAndConvert(msg.From)
if err != nil {
return nil, sdkerrors.Wrap(types.ErrBurn, err.Error())
}
_, found = k.GetBlacklisted(ctx, addressBz)
if found {
return nil, sdkerrors.Wrap(types.ErrBurn, "minter address is blacklisted")
}
mintingDenom := k.GetMintingDenom(ctx)
if msg.Amount.Denom != mintingDenom.Denom {
return nil, sdkerrors.Wrap(types.ErrBurn, "burning denom is incorrect")
}
paused := k.GetPaused(ctx)
if paused.Paused {
return nil, sdkerrors.Wrap(types.ErrBurn, "burning is paused")
}
minterAddress, err := sdk.AccAddressFromBech32(msg.From)
if err != nil {
return nil, sdkerrors.Wrap(types.ErrBurn, err.Error())
}
amount := sdk.NewCoins(msg.Amount)
err = k.bankKeeper.SendCoinsFromAccountToModule(ctx, minterAddress, types.ModuleName, amount)
if err != nil {
return nil, sdkerrors.Wrap(types.ErrBurn, err.Error())
}
if err := k.bankKeeper.BurnCoins(ctx, types.ModuleName, amount); err != nil {
return nil, sdkerrors.Wrap(types.ErrBurn, err.Error())
}
err = ctx.EventManager().EmitTypedEvent(msg)
return &types.MsgBurnResponse{}, err
}