custom_fee.go

package hedera

/*-
 *
 * Hedera Go SDK
 *
 * Copyright (C) 2020 - 2024 Hedera Hashgraph, LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

import (
	"github.com/hashgraph/hedera-protobufs-go/services"
	protobuf "google.golang.org/protobuf/proto"
)

// Base struct for all custom fees
type CustomFee struct {
	FeeCollectorAccountID  *AccountID
	AllCollectorsAreExempt bool
}

func _CustomFeeFromProtobuf(customFee *services.CustomFee) Fee {
	if customFee == nil {
		return nil
	}

	var id *AccountID
	if customFee.FeeCollectorAccountId != nil {
		id = _AccountIDFromProtobuf(customFee.FeeCollectorAccountId)
	}

	fee := CustomFee{
		FeeCollectorAccountID:  id,
		AllCollectorsAreExempt: customFee.AllCollectorsAreExempt,
	}

	switch t := customFee.Fee.(type) {
	case *services.CustomFee_FixedFee:
		return _CustomFixedFeeFromProtobuf(t.FixedFee, fee)
	case *services.CustomFee_FractionalFee:
		return _CustomFractionalFeeFromProtobuf(t.FractionalFee, fee)
	case *services.CustomFee_RoyaltyFee:
		return _CustomRoyaltyFeeFromProtobuf(t.RoyaltyFee, fee)
	}

	return nil
}

// SetFeeCollectorAccountID sets the account ID that will receive the custom fee
func (fee *CustomFee) SetFeeCollectorAccountID(id AccountID) *CustomFee {
	fee.FeeCollectorAccountID = &id
	return fee
}

// GetFeeCollectorAccountID returns the account ID that will receive the custom fee
func (fee *CustomFee) GetFeeCollectorAccountID() AccountID {
	return *fee.FeeCollectorAccountID
}

// SetAllCollectorsAreExempt sets whether or not all collectors are exempt from the custom fee
func (fee *CustomFee) SetAllCollectorsAreExempt(exempt bool) *CustomFee {
	fee.AllCollectorsAreExempt = exempt
	return fee
}

// GetAllCollectorsAreExempt returns whether or not all collectors are exempt from the custom fee
func (fee *CustomFee) GetAllCollectorsAreExempt() bool {
	return fee.AllCollectorsAreExempt
}

// CustomFeeFromBytes returns a CustomFee from a raw protobuf byte array
func CustomFeeFromBytes(data []byte) (Fee, error) {
	if data == nil {
		return nil, errByteArrayNull
	}
	pb := services.CustomFee{}
	err := protobuf.Unmarshal(data, &pb)
	if err != nil {
		return nil, err
	}

	return _CustomFeeFromProtobuf(&pb), nil
}