// Copyright 2024 The Erigon Authors
// This file is part of Erigon.
//
// Erigon 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.
//
// Erigon is 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 Erigon. If not, see <http://www.gnu.org/licenses/>.

package cltypes

import (
	"github.com/erigontech/erigon/cl/merkle_tree"
	ssz2 "github.com/erigontech/erigon/cl/ssz"
	"github.com/erigontech/erigon/common/clonable"
)

// SyncAggregatorSelectionData data, contains if we were on bellatrix/alteir/phase0 and transition epoch.
type SyncAggregatorSelectionData struct {
	Slot              uint64 `json:"slot,string"`
	SubcommitteeIndex uint64 `json:"subcommittee_index,string"`
}

func (*SyncAggregatorSelectionData) Static() bool {
	return true
}

func (f *SyncAggregatorSelectionData) Copy() *SyncAggregatorSelectionData {
	return &SyncAggregatorSelectionData{
		Slot:              f.Slot,
		SubcommitteeIndex: f.SubcommitteeIndex,
	}
}

func (f *SyncAggregatorSelectionData) EncodeSSZ(dst []byte) ([]byte, error) {
	return ssz2.MarshalSSZ(dst, f.Slot, f.SubcommitteeIndex)
}

func (f *SyncAggregatorSelectionData) DecodeSSZ(buf []byte, _ int) error {
	return ssz2.UnmarshalSSZ(buf, 0, &f.Slot, &f.SubcommitteeIndex)

}

func (f *SyncAggregatorSelectionData) EncodingSizeSSZ() int {
	return 16
}

func (f *SyncAggregatorSelectionData) HashSSZ() ([32]byte, error) {
	return merkle_tree.HashTreeRoot(f.Slot, f.SubcommitteeIndex)
}

func (f *SyncAggregatorSelectionData) Clone() clonable.Clonable {
	return &SyncAggregatorSelectionData{
		Slot:              f.Slot,
		SubcommitteeIndex: f.SubcommitteeIndex,
	}
}
