import sys
import unittest
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
from core.origins import append_port, csv_values, effective_origins


class OriginTests(unittest.TestCase):
    def test_frontend_port(self):
        self.assertEqual(effective_origins("http://localhost, https://example.com", 1028), ["http://localhost:1028", "https://example.com:1028"])

    def test_backend_port(self):
        self.assertEqual(effective_origins("http://localhost", 1029), ["http://localhost:1029"])

    def test_does_not_duplicate_existing_port(self):
        self.assertEqual(append_port("http://localhost:5000", 1028), "http://localhost:5000")

    def test_multiple_hosts_and_duplicates(self):
        self.assertEqual(csv_values("localhost, 127.0.0.1, localhost"), ["localhost", "127.0.0.1"])

    def test_rejects_paths(self):
        with self.assertRaises(ValueError):
            append_port("http://localhost/path", 1028)

    def test_ipv6(self):
        self.assertEqual(append_port("http://[::1]", 1029), "http://[::1]:1029")


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