# standard imports
import os
import random
import tempfile
import unittest

from cic.contract.components.attachment import Attachment
from cic.contract.components.proof import Proof
from cic.contract.processor import ContractProcessor

# local imports
from cic.writers import KVWriter

# external imports
from hexathon import add_0x

test_base_dir = os.path.dirname(os.path.realpath(__file__))
test_data_dir = os.path.join(test_base_dir, "testdata")

proof_hash = "0f6fc017f29caf512c0feaaf83bc10614b488311cace2973dc248dc24b01e04f"
foo_hash = "2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae"
bar_hash = "fcde2b2edba56bf408601fb721fe9b5c338d10ee429ea04fae5511b68fbf8fb9"
root_merged_hash = "2a27a488377c753fffea58ad535cfdacc2fcb5cf0ae495ec71d88e31757ec0c3"
root_unmerged_hash = "14dc271290eca763e99c2e7c21c541bded86fb803c6b01bac28cd367db34399c"


class TestCICBase(unittest.TestCase):
    def setUp(self):
        super(TestCICBase, self).setUp()
        random.seed(42)

        f = open("/dev/urandom", "rb")
        addresses = []
        for _i in range(3):
            address_bytes = f.read(32)
            addresses.append(add_0x(address_bytes.hex()))

        self.token_symbol = "FOO"

        token_address_bytes = f.read(20)
        token_index_address_bytes = f.read(20)
        address_declarator_address_bytes = f.read(20)

        self.token_address = add_0x(token_address_bytes.hex())
        self.token_index_address = add_0x(token_index_address_bytes.hex())
        self.address_declarator_address = add_0x(address_declarator_address_bytes.hex())

        f.close()

        self.outputs_dir = tempfile.mkdtemp()
        self.outputs_writer = KVWriter(self.outputs_dir)
        self.core_processor = ContractProcessor(outputs_writer=self.outputs_writer)

        self.resources = {
            "token": {
                "reference": self.token_address,
                "key_address": addresses[0],
            },
            "token_index": {
                "reference": self.token_index_address,
                "key_address": addresses[1],
            },
            "address_declarator": {
                "reference": self.address_declarator_address,
                "key_address": addresses[2],
            },
        }
        proof_dir = os.path.join(test_data_dir, "proof")
        attach = Attachment(path=proof_dir)
        attach.load()
        self.proofs = Proof(proof_dir, attachments=attach)
        self.proofs.load()