package mongodb

import (
	"context"
	"git.aiterp.net/rpdata/api/internal/generate"
	"git.aiterp.net/rpdata/api/models"
	"git.aiterp.net/rpdata/api/repositories"
	"github.com/globalsign/mgo"
	"github.com/globalsign/mgo/bson"
)

type keyRepository struct {
	restoreIDs bool
	keys       *mgo.Collection
}

func newKeyRepository(db *mgo.Database, restoreIDs bool) (repositories.KeyRepository, error) {
	collection := db.C("auth.keys")

	err := collection.EnsureIndexKey("user")
	if err != nil {
		return nil, err
	}

	return &keyRepository{
		keys:       collection,
		restoreIDs: restoreIDs,
	}, nil
}

func (r *keyRepository) Find(ctx context.Context, id string) (*models.Key, error) {
	key := models.Key{}
	err := r.keys.FindId(id).One(&key)
	if err != nil {
		return nil, err
	}

	return &key, err
}

func (r *keyRepository) List(ctx context.Context, filter models.KeyFilter) ([]*models.Key, error) {
	query := bson.M{}
	if filter.UserID != nil {
		query["user"] = *filter.UserID
	}

	keys := make([]*models.Key, 0, 4)
	err := r.keys.Find(query).All(&keys)
	if err != nil {
		if err == mgo.ErrNotFound {
			return nil, nil
		}

		return nil, err
	}

	return keys, nil
}

func (r *keyRepository) Insert(ctx context.Context, key models.Key) (*models.Key, error) {
	if !r.restoreIDs {
		key.ID = generate.KeyID()
	}

	err := r.keys.Insert(&key)
	if err != nil {
		return nil, err
	}

	return &key, nil
}

func (r *keyRepository) Delete(ctx context.Context, key models.Key) error {
	return r.keys.RemoveId(key.ID)
}