from django.db import models


class Contact(models.Model):
    """Contact model. Person to be called by users"""
    id = models.AutoField(primary_key=True)
    first_name = models.CharField(max_length=64)
    last_name = models.CharField(max_length=64)
    phone = models.CharField(max_length=32)
    twitter = models.CharField(max_length=64, blank=True)
    mail = models.CharField(max_length=255, blank=True)

    def __unicode__(self):
        return '%s %s' % (self.first_name, self.last_name)


class Campaign(models.Model):
    """Campaign model, describe what have to be achieved"""
    id = models.AutoField(primary_key=True)
    title = models.CharField(max_length=255)
    description = models.CharField(max_length=512, blank=True)
    start_date = models.DateField()
    end_date = models.DateField()
    default_lang = models.CharField(max_length=5)

    def __unicode__(self):
        return self.title


class Argumentary(models.Model):
    """Argumentary in a given language for a campaign"""
    id = models.AutoField(primary_key=True)
    campaign = models.ForeignKey(Campaign)
    lang = models.CharField(max_length=255)
    text = models.TextField(null=True)

    def __unicode__(self):
        return 'Argumentary in %s for %s' % (self.lang, self.campaign.title)


class CampaignContact(models.Model):
    """List contact related to a campaign with a given weight"""
    id = models.AutoField(primary_key=True)
    campaign = models.ForeignKey(Campaign)
    contact = models.ForeignKey(Contact)
    weight = models.IntegerField(default=0)

    def __unicode__(self):
        return 'Contact %s on %s' % (self.contact, self.campaign.title)