from django.db import models
from django.conf import settings
from sys import maxsize

# Create your models here.

class Player(models.Model):
    name = models.CharField(max_length=30, unique=True)
    mc_uuid = models.CharField(max_length=36, unique=True)
    discord_uuid = models.CharField(max_length=50, unique=True)

    @property
    def json(self):
        return {"Name": self.name, "MC UUID": self.mc_uuid, "Discord UUID": self.discord_uuid}


class Location(models.Model):
    DIMENSIONS = (
        ('O', 'Overworld'),
        ('N', 'Nether'),
        ('E', 'The End')
    )

    name = models.CharField(max_length=128, unique=True)

    x_coord = models.IntegerField()
    z_coord = models.IntegerField()
    dimension = models.CharField(max_length=1, choices=DIMENSIONS)

    owner = models.ForeignKey(Player, related_name='owner_player', on_delete=models.CASCADE)

    @property
    def json(self):
        return {"Type": str(type(self)), "Name": self.name, "x_coord": self.x_coord, "z_coord": self.z_coord,
                "dimension": self.dimension, "Owner": self.owner.json}


class Shop(Location):
    def __str__(self):
        return "Shop: %s" % self.name


class Base(Location):
    def __str__(self):
        return "Base: %s" % self.name


class ItemListing(models.Model):
    item_name = models.CharField(max_length=128)
    price = models.IntegerField()
    amount = models.IntegerField()

    shop = models.ForeignKey(Shop, related_name="shop_selling", on_delete=models.CASCADE)

    @property
    def normalized_price(self):
        if self.amount == 0:
            return maxsize
        else:
            return self.price/self.amount

    def __str__(self):
        return "Item: %d %s for %d" % (self.amount, self.item_name, self.amount)


class Tunnel(models.Model):
    TUNNEL_NAMES = (
        ('N', getattr(settings, 'NORTH', '')),
        ('E', getattr(settings, 'EAST', '')),
        ('S', getattr(settings, 'SOUTH', '')),
        ('W', getattr(settings, 'WEST', ''))
    )

    tunnel_number = models.IntegerField()
    tunnel_direction = models.CharField(max_length=1, choices=TUNNEL_NAMES)

    location = models.ForeignKey(Location, related_name="tunnel_location", on_delete=models.CASCADE)

    def __str__(self):
        return "Tunnel: %s %d" % (self.tunnel_direction, self.tunnel_number)