"""Models for managing competitive races."""

import logging

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


log = logging.getLogger('races.models')


class Race(models.Model):

    """Track a race."""

    key = models.CharField(max_length=16, primary_key=True)
    name = models.CharField(max_length=255)
    description = models.TextField()

    def __str__(self):
        """Text representation of a race."""

        return "{0:s} ({1:s})".format(self.name, self.key)


class Racer(models.Model):

    """Track a racer in a race."""

    nick = models.CharField(max_length=64)
    race = models.ForeignKey(Race, on_delete=models.CASCADE)

    joined = models.BooleanField(default=False)
    started = models.BooleanField(default=False)
    finished = models.BooleanField(default=False)

    class Meta:
        unique_together = ('nick', 'race')

    def __str__(self):
        """Text representation of a race racer."""

        return "{0:s} in {1:s}".format(self.nick, self.race.name)


class RaceUpdate(models.Model):

    """Periodic updates for a racer."""

    race = models.ForeignKey(Race, on_delete=models.CASCADE)
    racer = models.ForeignKey(Racer, on_delete=models.CASCADE)
    update = models.TextField()
    event_time = models.DateTimeField(default=timezone.now)

    class Meta:
        ordering = ['event_time',]

    def __str__(self):
        """Text representation of a race update."""

        local_time = timezone.localtime(self.event_time)
        return "{0:s} in {1:s} @ {2:s}".format(self.racer.nick, self.race.name,
                                               local_time.strftime('%Y-%m-%d %H:%M:%S %Z'))