handler.go

// Copyright 2022 Evmos Foundation
// This file is part of the Evmos Network packages.
//
// Evmos is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The Evmos packages are distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the Evmos packages. If not, see https://github.com/evmos/evmos/blob/main/LICENSE

package erc20

import (
	errorsmod "cosmossdk.io/errors"
	sdk "github.com/cosmos/cosmos-sdk/types"
	errortypes "github.com/cosmos/cosmos-sdk/types/errors"

	"github.com/settlus/chain/evmos/x/erc20/types"
)

// NewHandler defines the erc20 module handler instance
func NewHandler(server types.MsgServer) sdk.Handler {
	return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
		ctx = ctx.WithEventManager(sdk.NewEventManager())

		switch msg := msg.(type) {
		case *types.MsgConvertCoin:
			res, err := server.ConvertCoin(sdk.WrapSDKContext(ctx), msg)
			return sdk.WrapServiceResult(ctx, res, err)
		case *types.MsgConvertERC20:
			res, err := server.ConvertERC20(sdk.WrapSDKContext(ctx), msg)
			return sdk.WrapServiceResult(ctx, res, err)
		case *types.MsgUpdateParams:
			res, err := server.UpdateParams(sdk.WrapSDKContext(ctx), msg)
			return sdk.WrapServiceResult(ctx, res, err)
		default:
			err := errorsmod.Wrapf(errortypes.ErrUnknownRequest, "unrecognized %s message type: %T", types.ModuleName, msg)
			return nil, err
		}
	}
}