"""Generate independent evaluator vectors only; never rewrite shipping assets."""
import itertools
from pathlib import Path
import random
import struct
import sys

ROOT = Path(__file__).resolve().parents[2]
sys.path.insert(0, str(ROOT/'tools/vendor'))
from treys import Card, Evaluator


def main():
    rng = random.Random(77291)
    hands = [list(hand) for hand in itertools.combinations([8,9,10,11,12,13,25], 5)]
    hands += [rng.sample(range(52), count) for count in (5,6,7) for _ in range(3000)]
    evaluator = Evaluator()
    def native(card):
        return Card.new('23456789TJQKA'[card%13]+'cdhs'[card//13])
    vectors = b''.join(struct.pack('<9I', len(hand), *hand, *([0]*(7-len(hand))),
                                   evaluator.evaluate([], [native(card) for card in hand]))
                       for hand in hands)
    target = ROOT/'build/tables/poker-vectors.bin'
    target.parent.mkdir(parents=True, exist_ok=True)
    target.write_bytes(struct.pack('<I', len(hands))+vectors)
    print(f'Prepared {len(hands)} independent poker vectors')


if __name__ == '__main__':
    main()