from django.db import models
from main.models import Tag, Activity
from django.db.models.signals import post_save, post_delete

class Language(models.Model):
    name = models.CharField(max_length=100)

    def __unicode__(self):
        return self.name

class Screenshot(models.Model):
    url = models.URLField(max_length=255)
    description = models.CharField(max_length=300)

    def __unicode__(self):
        return self.description

class Project(models.Model):
    STATUS_CHOICES = (
        ('active', "Active"),
        ('onhold', "On Hold"),
        ('dropped', "Dropped"),
    )

    slug = models.SlugField(max_length=255, primary_key=True)
    name = models.CharField(max_length=300)
    status = models.CharField(max_length=8, choices=STATUS_CHOICES)
    tagline = models.CharField(max_length=140, null=True, blank=True)
    languages = models.ManyToManyField(Language, null=True, blank=True)
    source_url = models.URLField(max_length=255, null=True, blank=True)
    bugtracker_url = models.URLField(max_length=255, null=True, blank=True)
    wiki_url = models.URLField(max_length=255, null=True, blank=True)
    description = models.TextField()
    screenshots = models.ForeignKey(Screenshot, null=True, blank=True)
#    tags = models.ManyToManyField(Tag, null=True, blank=True)

    def __unicode__(self):
        return self.name

def project_saved_callback(sender, **kwargs):
    if kwargs['created']:
        acttype = 'add'
    else:
        acttype = 'edit'

    a = Activity(actcategory='project',
                 actdescription=kwargs["instance"].name,
                 acttype = acttype,
                 objpk = kwargs["instance"].pk)
    a.save()

def project_deleted_callback(sender, **kwargs):
    a = Activity(actcategory='project',
                 actdescription=kwargs["instance"].name,
                 acttype = 'delete')
    a.save()

post_save.connect(project_saved_callback, sender=Project)
post_delete.connect(project_deleted_callback, sender=Project)