package models

// List represents a list of items
type List struct {
	ID          int64  `xorm:"int(11) autoincr not null unique pk" json:"id"`
	Title       string `xorm:"varchar(250)" json:"title"`
	Description string `xorm:"varchar(1000)" json:"description"`
	OwnerID     int64  `xorm:"int(11)" json:"-"`
	NamespaceID int64  `xorm:"int(11)" json:"-"`

	Owner User        `xorm:"-" json:"owner"`
	Items []*ListItem `xorm:"-" json:"items"`

	Created int64 `xorm:"created" json:"created"`
	Updated int64 `xorm:"updated" json:"updated"`
}

// GetListByID returns a list by its ID
func GetListByID(id int64) (list List, err error) {
	exists, err := x.ID(id).Get(&list) // tName ist hässlich, geht das nicht auch anders?
	if err != nil {
		return list, err
	}

	if !exists {
		return list, ErrListDoesNotExist{ID: id}
	}

	// Get the list owner
	list.Owner, _, err = GetUserByID(list.OwnerID)
	if err != nil {
		return List{}, err
	}

	items, err := GetItemsByListID(list.ID)
	if err != nil {
		return
	}
	list.Items = items

	return list, nil
}

// GetListsByUser gets all lists a user owns
func GetListsByUser(user *User) (lists []*List, err error) {
	fullUser, _, err := GetUserByID(user.ID)
	if err != nil {
		return
	}

	err = x.Where("owner_id = ?", user.ID).Find(&lists)
	if err != nil {
		return
	}

	for in := range lists {
		lists[in].Owner = fullUser
	}

	return
}

func GetListsByNamespaceID(nID int64) (lists []*List, err error) {
	err = x.Where("namespace_id = ?", nID).Find(&lists)
	return lists, err
}