0g-chain/x/incentive/handler.go

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package incentive
import (
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/kava-labs/kava/x/incentive/keeper"
"github.com/kava-labs/kava/x/incentive/types"
)
// NewHandler creates an sdk.Handler for incentive module messages
func NewHandler(k keeper.Keeper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
ctx = ctx.WithEventManager(sdk.NewEventManager())
switch msg := msg.(type) {
case types.MsgClaimReward:
return handleMsgClaimReward(ctx, k, msg)
default:
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized %s message type: %T", ModuleName, msg)
}
}
}
func handleMsgClaimReward(ctx sdk.Context, k keeper.Keeper, msg types.MsgClaimReward) (*sdk.Result, error) {
claims, found := k.GetClaimsByAddressAndDenom(ctx, msg.Sender, msg.Denom)
if !found {
return nil, sdkerrors.Wrapf(types.ErrNoClaimsFound, "address: %s, denom: %s", msg.Sender, msg.Denom)
}
for _, claim := range claims {
err := k.PayoutClaim(ctx, claim.Owner, claim.Denom, claim.ClaimPeriodID)
if err != nil {
return nil, err
}
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
sdk.NewAttribute(sdk.AttributeKeySender, msg.Sender.String()),
),
)
return &sdk.Result{
Events: ctx.EventManager().Events(),
}, nil
}