from django.db import models
from django.utils import timezone


class SeenNick(models.Model):

    """Track when a nick was seen in any channel."""

    nick = models.CharField(max_length=64)
    channel = models.CharField(max_length=64)

    host = models.CharField(max_length=255)
    seen_time = models.DateTimeField(default=timezone.now)
    what = models.TextField()

    class Meta:
        ordering = ['-seen_time',]
        unique_together = ('nick', 'channel')

    def __unicode__(self):
        """String representation of a seen nick."""

        local_time = timezone.localtime(self.seen_time)
        return u"{0:s} seen in {1:s} at {2:s}".format(self.nick, self.channel,
                                                      local_time.strftime('%Y-%m-%d %H:%M:%S %Z'))

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