"""python3 -m unittest discover tests"""
import importlib.machinery
import importlib.util
import subprocess
import unittest
from pathlib import Path

_chargeur = importlib.machinery.SourceFileLoader(
    "li_gen", str(Path(__file__).resolve().parent.parent / "bin" / "li-gen"))
_spec = importlib.util.spec_from_loader("li_gen", _chargeur)
li_gen = importlib.util.module_from_spec(_spec)
_chargeur.exec_module(li_gen)


class Signature(unittest.TestCase):
    def test_identique_a_openssl(self):
        # Ce que calcule li-user, donc ce que verifie secure_link_md5.
        chemin, secret = "/library/movies/Été à Paris/The Janitor’s Boy.mkv", "abc123"
        brut = f"2145916800{chemin}{secret}"
        attendu = subprocess.run(
            ["sh", "-c", "printf '%s' \"$1\" | openssl md5 -binary | openssl base64 "
                         "| tr '+/' '-_' | tr -d '='", "sh", brut],
            check=True, capture_output=True, text=True).stdout.strip()
        self.assertEqual(li_gen.signe(chemin, 2145916800, secret), attendu)

    def test_signe_le_chemin_decode(self):
        cfg = li_gen.Config({"LI_BASE_URL": "https://li.example.org/"})
        u = li_gen.url(cfg, "/library/a b’c.mkv", "alice", "s3cret")
        self.assertTrue(u.startswith("https://li.example.org/library/a%20b%E2%80%99c.mkv?"))
        self.assertTrue(u.endswith("&s=" + li_gen.signe("/library/a b’c.mkv", 2145916800, "s3cret")))


class Configuration(unittest.TestCase):
    def test_base_obligatoire(self):
        with self.assertRaises(SystemExit):
            li_gen.Config({})


if __name__ == "__main__":
    unittest.main()