package Nredis

import (
	l4g "proxy/logger"
)

type BinLogPos struct {
	File string `redis:"file"`
	Position uint32 `redis:"position"`
}

func RdbSetBinLogPos(file string, pos uint32) error {
	err := rdb.HMSet(ctx, "binlogpos", "file", file, "position", pos).Err()
	if err != nil {
		l4g.RedisLog.Errorf("HMSet binlogpos %s %d, err: %v", file, pos, err)
	}

	return err
}

func RdbGetBinLogPos() *BinLogPos {
	// Get the map. The same approach works for HmGet().
	res := rdb.HGetAll(ctx, "binlogpos")
	err := res.Err()
	if err != nil {
		l4g.RedisLog.Errorf("HGetAll binlogpos, err: %v", err)
		return nil
	}

	// Scan the results into the struct.
	var pos BinLogPos
	if err = res.Scan(&pos); err != nil {
		l4g.RedisLog.Errorf("HGetAll Scan binlogpos, err: %v", err)
		return nil
	} else {
		l4g.RedisLog.Debugf("Get binlogpos, [%v]", pos)
		return &pos
	}
}