class Item(models.Model):
    """ Data every item has. No matter the shape or size """

    name = models.CharField(max_length=63, unique=True)
    description = models.TextField()
    volume = models.FloatField()

    #class Meta:
        #abstract = True

    def __unicode__(self):
        return self.name



class Equipment(Item):
    """ Items a hero can equip """

    HAND = "hand"
    CHEST = "chest"
    TRINKET = "trinket"
    TRANSPORT = "transport"
    CATEGORIES = (
        (HAND, "Hand"),
        (CHEST, "Chest"),
        (TRINKET, "Trinket"),
        (TRANSPORT, "Transport"),
    )


    category = models.CharField(max_length=15, choices=CATEGORIES)

    hitpoints = models.IntegerField(default=0)
    critical = models.IntegerField(default=0)
    power = models.IntegerField(default=0)
    defense = models.IntegerField(default=0)
    block = models.IntegerField(default=0)
    hit_chance = models.IntegerField(default=0)

    #Trading/Transport Stats
    speed = models.IntegerField(default=0)
    cargo = models.IntegerField(default=0)
    reputation = models.IntegerField(default=0)
    trade_orders = models.IntegerField(default=0)
    tax_reduction = models.IntegerField(default=0)
    contracts = models.IntegerField(default=0)

    #Craftin/Gathering
    crafting = models.IntegerField(default=0)
    efficiency = models.IntegerField(default=0)
    stamina = models.IntegerField(default=0)
    gathering = models.IntegerField(default=0)
    endurance = models.IntegerField(default=0)
    luck = models.IntegerField(default=0)






class Resource(Item):
    """ Basic (gatherable) items """

    TIER_1 = 1
    TIER_2 = 2
    TIER_3 = 3
    TIER_4 = 4
    TIERS = (
        (TIER_1, "Tier 1"),
        (TIER_2, "Tier 2"),
        (TIER_3, "Tier 3"),
        (TIER_4, "Tier 4"),
    )

    METAL = "metal"
    STONE = "stone"
    WOOD = "wood"
    ANIMAL = "animal"
    FOOD = "food"
    CATEGORIES = (
        (METAL, "Metal"),
        (STONE, "Stone"),
        (WOOD, "Wood"),
        (ANIMAL, "Animal"),
        (FOOD, "Food"),
    )

    category = models.CharField(max_length=15, choices=CATEGORIES)
    tier = models.IntegerField(choices=TIERS)
    location = models.CharField(max_length=31, unique=True)
    heroes_min = models.IntegerField()
    heroes_max = models.IntegerField()
    gather_speed = models.FloatField()                              #base speed of gathering this resource per hour
    stamina_cost = models.FloatField()                              #hunger costs per hour of gathering


    def __unicode__(self):
        return "%s(%s)" % (self.location, self.resource.name)


    #get random amount of heroes on 1 resource
    #TODO: maybe add ways to increase
    def random_heroes_on_resource(self):
        amount = random.randint(self.heroes_min, self.heroes_max)
        return amount



class HeroInventory(models.Model):
    """ hero inventory space. has a max volume  """

    hero = models.OneToOneField("heroes.Hero")
    volume_current = models.FloatField()

    def __unicode__(self):
        return "Hero Inventory"




class HeroInventoryItem(models.Model):
    """ items in a heroes inventory """

    heroinventory = models.ForeignKey("heroes.Hero")
    item = models.OneToOneField("elements.Item")
    amount = models.IntegerField()

    def __unicode__(self):
        return "%s. Item: %s" % (self.heroinventory.hero.name, self.item.name)