// 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 stages

import (
	"fmt"

	"github.com/huandu/xstrings"

	"github.com/erigontech/erigon/db/kv"
	"github.com/erigontech/erigon/diagnostics/metrics"
)

var SyncMetrics = map[SyncStage]metrics.Gauge{}

func init() {
	for _, v := range AllStages {
		SyncMetrics[v] = metrics.GetOrCreateGauge(
			fmt.Sprintf(
				`sync{stage="%s"}`,
				xstrings.ToSnakeCase(string(v)),
			),
		)
	}
}

// UpdateMetrics - need update metrics manually because current "metrics" package doesn't support labels
// need to fix it in future
func UpdateMetrics(tx kv.Tx) error {
	for id, m := range SyncMetrics {
		progress, err := GetStageProgress(tx, id)
		if err != nil {
			return err
		}
		m.SetUint64(progress)
	}
	return nil
}
