import random
import json


def load_lists(list_names, base_dir="lists"):
    lists = {}

    for name in list_names:
        with open(f"{base_dir}/{name}.json", "r") as f:
            lists[name] = json.load(f)

    return lists


def rand_hp():
    # Weights from https://bulbapedia.bulbagarden.net/wiki/HP_(TCG)

    hp_range = list(range(30, 340 + 1, 10))

    weights = [156, 542, 1264, 1727, 1477, 1232, 1008, 640, 436, 515, 469, 279, 188,
               131, 132, 132, 56, 66, 97, 74, 23, 24, 25, 7, 15, 6, 0, 12, 18, 35, 18, 3]

    return random.choices(hp_range, weights)[0]


def rand_type(types=['Grass', 'Fire', 'Water', 'Lightning', 'Fighting',
                     'Psychic', 'Colorless', 'Darkness', 'Metal', 'Dragon', 'Fairy'], can_be_none=False):
    if can_be_none:
        return random.choices([random.choices(types)[0], None])[0]
    else:
        return random.choices(types)[0]


def rand_name(energy_type=rand_type()):
    lists = load_lists([energy_type], 'lists/names')

    return random.choices(lists[energy_type])[0]


def rand_species(species):
    random_species = random.choices(species)[0]

    return f'{random_species.capitalize()}'


def rand_length():
    # Weights from https://bulbapedia.bulbagarden.net/wiki/List_of_Pok%C3%A9mon_by_height

    feet_ranges = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '16',
                   '17', '18', '19', '20', '21', '22', '23', '24', '26', '28', '30', '32', '34', '35', '47', '65', '328']

    weights = [30, 220, 230, 176, 130, 109, 63, 27, 17, 17, 5, 5, 6,
               4, 3, 2, 2, 2, 1, 2, 3, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1]

    return {
        "feet": random.choices(feet_ranges, weights)[0],
        "inches": random.randrange(0, 11 + 1, 1)
    }


def rand_weight():
    # Weights from https://bulbapedia.bulbagarden.net/wiki/List_of_Pok%C3%A9mon_by_weight

    weight_ranges = [{"start": 1, "end": 22}, {"start": 22, "end": 44}, {"start": 44, "end": 55}, {"start": 55, "end": 110}, {"start": 110, "end": 132}, {"start": 132, "end": 218}, {"start": 218, "end": 220}, {"start": 221, "end": 226}, {
        "start": 226, "end": 331}, {"start": 331, "end": 441}, {"start": 441, "end": 451}, {"start": 452, "end": 661}, {"start": 661, "end": 677}, {"start": 677, "end": 793}, {"start": 794, "end": 903}, {"start": 903, "end": 2204}]

    # 'weights' as in statistical weightings
    weights = [271, 145, 53, 204, 57, 122, 1, 11, 57, 28, 7, 34, 4, 17, 5, 31]

    start, end = random.choices(weight_ranges, weights)[0].values()

    random_weight = random.randrange(start, end + 1, 1)

    return f'{random_weight} lbs.'


def rand_attack(attacks, name, energy_type=None, colorless_only_allowed=False):
    random_attack = random.choices(attacks)[0]

    # There are no attacks in Pokémon TCG that have Dragon energy costs
    # so this would loop indefinitely if looking for one

    if energy_type is not None and energy_type != 'Dragon' and not colorless_only_allowed:
        while energy_type not in random_attack["cost"]:
            random_attack = random.choices(attacks)[0]
    elif energy_type is not None and energy_type != 'Dragon' and colorless_only_allowed:
        while energy_type not in random_attack["cost"] and 'Colorless' not in random_attack["cost"]:
            random_attack = random.choices(attacks)[0]

    random_attack['text'] = random_attack['text'].replace('<name>', name)

    return random_attack


def rand_attacks(attacks, name, energy_type=None, n=2):
    attack1 = rand_attack(attacks, name, energy_type)

    if n > 1:
        attack2 = rand_attack(attacks, name, energy_type, True)
        while attack1['text'] == attack2['text']:
            attack2 = rand_attack(attacks, name, energy_type, True)
        return [attack1, attack2]
    else:
        return [attack1]


def rand_retreat():
    return random.randrange(0, 4, 1)


def rand_description(descriptions):
    return random.choices(descriptions)[0]


def rand_rarity():
    return random.choices(['●', '◆', '★'], [10, 5, 1])[0]


def rand_details(lists=load_lists(['attacks', 'descriptions', 'species'])):
    energy_type = rand_type()
    name = rand_name(energy_type)

    return {
        "name": name,
        "hp": rand_hp(),
        "energy_type": energy_type,
        "species": rand_species(lists["species"]),
        "length": rand_length(),
        "weight": rand_weight(),
        "attacks": rand_attacks(lists["attacks"], name, energy_type=energy_type),
        "weakness": rand_type(can_be_none=True),
        "resistance": rand_type(can_be_none=True),
        "retreat": rand_retreat(),
        "description": rand_description(lists["descriptions"]),
        "rarity": rand_rarity(),
    }