/
msg_server.go
151 lines (126 loc) · 3.57 KB
/
msg_server.go
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package keeper
import (
"context"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/umee-network/umee/v6/util/checkers"
"github.com/umee-network/umee/v6/util/sdkutil"
"github.com/umee-network/umee/v6/x/metoken"
)
var _ metoken.MsgServer = msgServer{}
type msgServer struct {
kb Builder
}
// NewMsgServerImpl returns an implementation of MsgServer for the x/metoken
// module.
func NewMsgServerImpl(kb Builder) metoken.MsgServer {
return &msgServer{kb: kb}
}
// Swap handles the request for the swap, delegates the execution and returns the response.
func (m msgServer) Swap(goCtx context.Context, msg *metoken.MsgSwap) (*metoken.MsgSwapResponse, error) {
ctx, err := sdkutil.StartMsg(goCtx, msg)
if err != nil {
return nil, err
}
userAddr, err := sdk.AccAddressFromBech32(msg.User)
if err != nil {
return nil, err
}
k := m.kb.Keeper(&ctx)
resp, err := k.swap(userAddr, msg.MetokenDenom, msg.Asset)
if err != nil {
return nil, err
}
k.Logger().Debug(
"swap executed",
"user", userAddr,
"meTokens", resp.meTokens.String(),
"calculateFee", resp.fee.String(),
"reserved", resp.reserved.String(),
"leveraged", resp.leveraged.String(),
)
sdkutil.Emit(
&ctx, &metoken.EventSwap{
Recipient: msg.User,
Asset: sdk.NewCoin(msg.Asset.Denom, resp.reserved.Amount.Add(resp.leveraged.Amount)),
Metoken: resp.meTokens,
Fee: resp.fee,
},
)
return &metoken.MsgSwapResponse{
Fee: resp.fee,
Returned: resp.meTokens,
}, nil
}
// Redeem handles the request for the redemption, delegates the execution and returns the response.
func (m msgServer) Redeem(goCtx context.Context, msg *metoken.MsgRedeem) (*metoken.MsgRedeemResponse, error) {
ctx, err := sdkutil.StartMsg(goCtx, msg)
if err != nil {
return nil, err
}
userAddr, err := sdk.AccAddressFromBech32(msg.User)
if err != nil {
return nil, err
}
k := m.kb.Keeper(&ctx)
resp, err := k.redeem(userAddr, msg.Metoken, msg.AssetDenom)
if err != nil {
return nil, err
}
k.Logger().Debug(
"redeem executed",
"user", userAddr,
"calculateFee", resp.fee.String(),
"from_reserves", resp.fromReserves.String(),
"from_leverage", resp.fromLeverage.String(),
"burned", msg.Metoken.String(),
)
totalRedeemed := sdk.NewCoin(
msg.AssetDenom,
resp.fromReserves.Amount.Add(resp.fromLeverage.Amount).Sub(resp.fee.Amount),
)
sdkutil.Emit(
&ctx, &metoken.EventRedeem{
Recipient: msg.User,
Metoken: msg.Metoken,
Asset: totalRedeemed,
Fee: resp.fee,
},
)
return &metoken.MsgRedeemResponse{
Returned: totalRedeemed,
Fee: resp.fee,
}, nil
}
// GovSetParams handles the request for updating Params.
func (m msgServer) GovSetParams(goCtx context.Context, msg *metoken.MsgGovSetParams) (
*metoken.MsgGovSetParamsResponse,
error,
) {
ctx, err := sdkutil.StartMsg(goCtx, msg)
if err != nil {
return nil, err
}
if err = m.kb.Keeper(&ctx).SetParams(msg.Params); err != nil {
return nil, err
}
return &metoken.MsgGovSetParamsResponse{}, nil
}
// GovUpdateRegistry handles the request for updating the indexes' registry.
func (m msgServer) GovUpdateRegistry(
goCtx context.Context,
msg *metoken.MsgGovUpdateRegistry,
) (*metoken.MsgGovUpdateRegistryResponse, error) {
ctx, err := sdkutil.StartMsg(goCtx, msg)
if err != nil {
return nil, err
}
k := m.kb.Keeper(&ctx)
byEmergencyGroup, err := checkers.EmergencyGroupAuthority(msg.Authority, k.ugov(&ctx))
if err != nil {
return nil, err
}
if err := k.UpdateIndexes(msg.AddIndex, msg.UpdateIndex, byEmergencyGroup); err != nil {
return nil, err
}
return &metoken.MsgGovUpdateRegistryResponse{}, nil
}