package mdb

/*
func (db *Database) openPrimary() (err error) {
	wal, err := cwal.Open(db.walRootDir, cwal.Config{
		SegMinCount:  db.conf.WALSegMinCount,
		SegMaxAgeSec: db.conf.WALSegMaxAgeSec,
	})

	pFile, err := pfile.Open(db.pageFilePath,

	pFile, err := openPageFileAndReplayWAL(db.rootDir)
	if err != nil {
		return err
	}
	defer pFile.Close()

	pfHeader, err := pFile.ReadHeader()
	if err != nil {
		return err
	}

	tx := db.Snapshot()
	tx.seqNum = pfHeader.SeqNum
	tx.updatedAt = pfHeader.UpdatedAt

	pIndex, err := pagefile.NewIndex(pFile)
	if err != nil {
		return err
	}

	err = pFile.IterateAllocated(pIndex, func(cID, iID uint64, data []byte) error {
		return db.loadItem(tx, cID, iID, data)
	})
	if err != nil {
		return err
	}

	w, err := cwal.OpenWriter(db.walRootDir, &cwal.WriterConfig{
		SegMinCount:  db.conf.WALSegMinCount,
		SegMaxAgeSec: db.conf.WALSegMaxAgeSec,
	})
	if err != nil {
		return err
	}

	db.done.Add(1)
	go txAggregator{
		Stop:     db.stop,
		Done:     db.done,
		ModChan:  db.modChan,
		W:        w,
		Index:    pIndex,
		Snapshot: db.snapshot,
	}.Run()

	db.done.Add(1)
	go (&fileWriter{
		Stop:         db.stop,
		Done:         db.done,
		PageFilePath: db.pageFilePath,
		WALRootDir:   db.walRootDir,
	}).Run()

	return nil
}
*/