package mongodb

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

type userRepository struct {
	users *mgo.Collection
}

func newUserRepository(db *mgo.Database) (repositories.UserRepository, error) {
	collection := db.C("core.users")

	return &userRepository{users: collection}, nil
}

func (r *userRepository) Find(ctx context.Context, id string) (*models.User, error) {
	user := new(models.User)
	err := r.users.FindId(id).One(user)
	if err != nil {
		if err == mgo.ErrNotFound {
			return nil, repositories.ErrNotFound
		}

		return nil, err
	}

	return user, nil
}

func (r *userRepository) List(ctx context.Context) ([]*models.User, error) {
	users := make([]*models.User, 0, 8)
	err := r.users.Find(bson.M{}).All(&users)
	if err != nil && err != mgo.ErrNotFound {
		return nil, err
	}

	return users, nil
}

func (r *userRepository) Insert(ctx context.Context, user models.User) (*models.User, error) {
	err := r.users.Insert(user)
	if err != nil {
		return nil, err
	}

	return &user, nil
}