# -*- coding: utf-8 -*-2

from django.db import models

class Project(models.Model):
    """ Model representing a citavi project. """
    name = models.CharField(max_length=255)
    description = models.TextField()
    associated_filename = models.CharField(max_length=255, blank=True, null=True)

    def __unicode__(self):
        temp = unicode(self.name)
        if self.associated_filename:
            temp += u" (" + unicode(self.associated_filename) + u")"
        else:
            temp += u" (No project file)"
        return temp

class Presentation(models.Model):
    """ Presention Model for PresentationForm"""
    title = models.CharField(max_length=255)
    type = models.CharField(max_length=255)
    abstract = models.CharField(max_length=255)

class PresentationEvent(models.Model):
    """Veranstaltung"""
    date = models.DateField()
    name = models.CharField(max_length=255)
    workshop = models.BooleanField()
    place = models.CharField(max_length=255)
    start_date = models.DateField()
    end_date = models.DateField()
    presentatiom = models.ForeignKey(Presentation, blank=False, null=False, db_index=True)
    
class PresentationPerson(models.Model):
    """ Person Model for PresentationForm"""
    given_name = models.CharField(max_length=255)
    additional_name = models.CharField(max_length=255)
    family_name = models.CharField(max_length=255)
    hshmembership = models.CharField(max_length=255)
    presentation = models.ForeignKey(Presentation, blank=False, null=False, db_index=True)


class PersonGlobalIdentity(models.Model):
    """ Model representing a global person identity in django. Can be used to link any foreign identity to it. """
    type = models.CharField(max_length=255)
    # TODO: Extend this for further stuff - maybe vivo external  url or something?

    def __unicode__(self):
        from service.Mapper import person_mapper
        return person_mapper.get_representation_for_global_identity(self) + u" [" u"ID=" + unicode(self.id) + u", Type=" + unicode(self.type) + u"]"


class CitaviProjectIdentity(models.Model):
    """ Model representing an identity from a citavi project. """
    global_identity = models.ForeignKey(PersonGlobalIdentity, blank=True, null=True, db_index=True)
    project = models.ForeignKey(Project, blank=False, null=False, db_index=True)
    citavi_uuid = models.CharField(max_length=255, blank=False, null=False, db_index=True)
    preferred = models.BooleanField()

    def __unicode__(self):
        from service.Mapper import person_mapper
        citavi_repr = person_mapper.get_representation_for_citavi_identity(self)
        if self.preferred == True:
            citavi_repr = citavi_repr + u" <preferred>"
        return citavi_repr

#  TODO: Figure out how to realize this step by step. PROPERLY!

class HSHIdentity(models.Model):
    """ Model representing existing HSH identities. """
    global_identity = models.ForeignKey(PersonGlobalIdentity, blank=True, null=True, db_index=True)
    preferred = models.BooleanField()


class VIVOIdentity(models.Model):
    """ Model representing existing VIVO identities. """
    global_identity = models.ForeignKey(PersonGlobalIdentity, blank=True, null=True, db_index=True)
    preferred = models.BooleanField()