package commitquery

import (
	"codeberg.org/lindenii/furgit/internal/peel"
	objectid "codeberg.org/lindenii/furgit/object/id"
)

func (query *query) resolveOID(id objectid.ObjectID) (nodeIndex, error) {
	idx, ok := query.byOID[id]
	if ok {
		err := query.ensureLoaded(idx)
		if err != nil {
			return 0, err
		}

		return idx, nil
	}

	idx = query.newNode(id)
	query.byOID[id] = idx

	err := query.loadByOID(idx)
	if err != nil {
		delete(query.byOID, id)

		return 0, err
	}

	return idx, nil
}

func (query *query) resolveCommitish(id objectid.ObjectID) (nodeIndex, error) {
	commitID, err := peel.ToCommit(query.store, id)
	if err != nil {
		return 0, err
	}

	return query.resolveOID(commitID)
}