from binascii import a2b_hex
from onionrblocks.generators import anonvdf
import unittest
import kasten
from onionrblocks.blockcreator import create_anonvdf_block

def get_rounds_for_ttl_seconds(seconds: int, size_bytes: int):
    second_cost = 4
    byte_cost = 10
    return (seconds * second_cost) + (size_bytes * byte_cost)

class TestBlockCreator(unittest.TestCase):
    """
    def test_create_anonvdf(self):
        seconds = 3600
        bl = create_anonvdf_block(b"Test", "txt", seconds)
        byte_cost = 10
        second_cost = 4
        # (rounds - (size_bytes * cls.byte_cost)) // cls.second_cost
        expected_rounds = (seconds * second_cost) + (len(bl.get_packed()) * byte_cost)
        self.assertTrue(abs(expected_rounds - bl.get_metadata()['rds']) < 91)

    def test_create_anonvdf_half_hour(self):
        bl = create_anonvdf_block(b"Test", "txt", 1800)
        expected_rounds = (len(bl.get_packed()) * anonvdf.AnonVDFGenerator.byte_cost) + (1800 * anonvdf.AnonVDFGenerator.second_cost)
        self.assertTrue(abs(expected_rounds - bl.get_metadata()['rds']) < 91)

    def test_create_anonvdf_odd(self):
        #(rounds - (size_bytes * cls.byte_cost)) // cls.second_cost
        bl = create_anonvdf_block(b"Test", "txt", 1303)
        expected_rounds = (len(bl.get_packed()) * anonvdf.AnonVDFGenerator.byte_cost) + (1303 * anonvdf.AnonVDFGenerator.second_cost)
        self.assertTrue(abs(expected_rounds - bl.get_metadata()['rds']) < 91)
    """

    def test_create_anonvdf_verify(self):
        bl = create_anonvdf_block(b"Test", "txt", 3600)

        packed = bl.raw

        kasten.Kasten(bl.id, packed, anonvdf.AnonVDFGenerator, auto_check_generator=True)
        print(bl.id)
        fake_id = b'01' + bl.id[2:]

        self.assertRaises(kasten.exceptions.InvalidID, kasten.Kasten, fake_id, packed, anonvdf.AnonVDFGenerator, auto_check_generator=True)

        fake_id = bytearray(bl.id)
        fake_id[32] = 13
        fake_id[34] = 13
        fake_id[120] = 13
        fake_id = bytes(fake_id).replace(b'\r', b'')
        print(fake_id.replace(b'\r', b''))

        kasten.Kasten(fake_id, packed, anonvdf.AnonVDFGenerator, auto_check_generator=True)


unittest.main()