package com.oconeco

import grails.gorm.services.Service
import grails.gorm.transactions.Transactional

interface ITagService {

    Tag get(Serializable id)

    List<Tag> list(Map args)

    Long count()

    void delete(Serializable id)

    Tag save(Tag tag)

    Tag findByLabel(String label)

    Tag findOrCreateByLabel(String label)

//    Tag findOrSaveByLabel(String label)

}

@Transactional
@Service(Tag)
abstract class TagService implements ITagService {
    // a couple of 'special' tags
    public static final String UPVOTE = 'upvote'
    public static final String DOWNVOTE = 'downvote'

    @Transactional
    Tag save(tag){
        log.info "Tag($tag) "
        if(tag.validate()){
            def foo = tag.save(flush:true, failOnError:true)
            log.info "Saved foo: $foo"
        }
        return tag
    }

    abstract Tag findOrSaveByLabel(String label)
}