#
#   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

class Art(Entity):
    title = Field(Unicode(120))
    original_filename = Field(Unicode(120))
    hash = Field(String)

    uploader = ManyToOne('User')
    tags = OneToMany('Tag')

    # def __init__(self, **kwargs):
    #     # I wanted to check for the existence of the file, but...
    #     # for some reason this FieldStorage object always conditions as falsey.
    #     # self.hash = save_file("art", kwargs.pop('file'))
    #     super(Art, self).__init__(**kwargs)
    #     # this is what super is doing, pretty much.
    #     # for key, value in kwargs.items():
    #     #     setattr(self, key, value)
    # left for posterity.

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

    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')

    # this text setter is no longer useful since I changed the way Art#add_tags works
    # but I'll leave it in here just for several minutes nostalgia.
    # def set_text(self, text):
    #     self.tagtext = TagText.get_by(text=text)
    #     if not self.tagtext:
    #         self.tagtext = TagText(text=text)
    #
    # text = property(lambda self: self.tagtext.text, set_text)

    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
    # options = ["sucks","neutral","good","great"]
    

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