forked from bandprotocol/bandchain
/
handler.go
48 lines (42 loc) · 1.69 KB
/
handler.go
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package mint
import (
"github.com/GeoDB-Limited/odincore/chain/x/mint/internal/types"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
)
// NewHandler creates the msg handler of this module, as required by Cosmos-SDK standard.
func NewHandler(k Keeper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
ctx = ctx.WithEventManager(sdk.NewEventManager())
switch msg := msg.(type) {
case MsgWithdrawCoinsToAccFromTreasury:
return handleWithdrawCoinsToAccFromTreasury(ctx, k, msg)
default:
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized %s message type: %T", ModuleName, msg)
}
}
}
// handleWithdrawCoinsToAccFromTreasury handles MsgWithdrawCoins
func handleWithdrawCoinsToAccFromTreasury(
ctx sdk.Context,
k Keeper,
msg MsgWithdrawCoinsToAccFromTreasury,
) (*sdk.Result, error) {
if !k.IsEligibleAccount(ctx, msg.Sender) {
return nil, sdkerrors.Wrapf(types.ErrAccountIsNotEligible, "account: %s", msg.Sender)
}
if k.LimitExceeded(ctx, msg.Amount) {
return nil, sdkerrors.Wrapf(types.ErrExceedsWithdrawalLimitPerTime, "amount: %s", msg.Amount)
}
err := k.WithdrawCoinsToAccFromTreasury(ctx, msg.Receiver, msg.Amount)
if err != nil {
return nil, sdkerrors.Wrapf(err, "failed to mint %s coins to account %s", msg.Amount, msg.Receiver)
}
ctx.EventManager().EmitEvent(sdk.NewEvent(
types.EventTypeWithdrawal,
sdk.NewAttribute(types.AttributeKeyWithdrawalAmount, msg.Amount.String()),
sdk.NewAttribute(types.AttributeKeyReceiver, msg.Receiver.String()),
sdk.NewAttribute(types.AttributeKeySender, msg.Sender.String()),
))
return &sdk.Result{Events: ctx.EventManager().Events()}, nil
}