#
#   floof/floof/model/art.py
#
#   Copyright (c) 2009 Scribblr
#

# from elixir import Entity, Field, Integer, Unicode
from elixir import *
import elixir

from pylons import config

from floof.lib.file_storage import get_path, save_file
from floof.lib.dbhelpers import find_or_create, update_or_create
import floof.model.comments

class Art(Entity):
    title = Field(Unicode(120))
    original_filename = Field(Unicode(120))
    hash = Field(String, unique=True, required=True)

    uploader = ManyToOne('User', required=True)
    tags = OneToMany('Tag')
    discussion = ManyToOne('Discussion')

    def set_file(self, file):
        self.hash = save_file("art", file)
        self.original_filename = file.filename

    file = property(get_path, set_file)

    def get_path(self):
        if self.hash:
            return get_path("art", self.hash)


    def add_tags(self, tags, user):
        for text in tags.split():
            if text[0] == '-':
                # Nega-tags
                tagtext = TagText.get_by(text=text[1:])
                if tagtext:
                    tag = Tag.get_by(art=self, tagger=user, tagtext=tagtext)
                    if tag:
                        elixir.session.delete(tag)

            else:
                if len(text) > 50:
                    raise "Long Tag!" # can we handle this more gracefully?
                # sqlite seems happy to store strings much longer than the supplied limit...

                # elixir should really have its own find_or_create.
                tagtext = find_or_create(TagText, text=text)
                tag     = find_or_create(Tag, art=self, tagger=user, tagtext=tagtext)




    def rate(self, score, user):
        return update_or_create(Rating, {"rater":user, "art":self}, {"score":score})

    def user_score(self, user):
        rating = Rating.get_by(rater=user, art=self)
        if rating:
            return rating.score
        return Rating.default

    def __unicode__(self):
        return self.get_path()


class Tag(Entity):
    # look into how ondelete works.  This just sets a database property.
    art = ManyToOne('Art', ondelete='cascade')
    tagger = ManyToOne('User', ondelete='cascade')
    tagtext = ManyToOne('TagText')

    def __unicode__(self):
        if not self.tagtext:
            return "(broken)"
        return unicode(self.tagtext)


class TagText(Entity):
    text = Field(Unicode(50)) # gotta enforce this somehow
    tags = OneToMany('Tag')

    def __unicode__(self):
        return self.text


class Rating(Entity):
    art = ManyToOne('Art', ondelete='cascade')
    rater = ManyToOne('User', ondelete='cascade')
    score = Field(Integer)

    options = {-1:"sucks", 0:"undecided", 1:"good", 2:"great"}
    default = 0


Rating.reverse_options = dict (zip(Rating.options.values(), Rating.options.keys()))