import csv
import importlib.util
import io
import types
import unittest
from pathlib import Path


PROVISION_PATH = Path(__file__).resolve().parents[1] / "provision.py"
SPEC = importlib.util.spec_from_file_location("provision", PROVISION_PATH)
provision = importlib.util.module_from_spec(SPEC)
SPEC.loader.exec_module(provision)


def make_args(**overrides):
    values = {name: None for name, _ in provision.CONFIG_VALUE_CHECKS}
    values["hop_dwell"] = 200
    values.update(overrides)
    return types.SimpleNamespace(**values)


def csv_rows(content):
    return list(csv.DictReader(io.StringIO(content)))


class ProvisionConfigValueTests(unittest.TestCase):
    def test_swarm_and_hopping_flags_count_as_config_values(self):
        cases = [
            {"hop_channels": "1,6,11"},
            {"seed_token": "token-123"},
            {"swarm_hb": 15},
            {"swarm_ingest": 3},
        ]

        for values in cases:
            with self.subTest(values=values):
                self.assertTrue(provision.has_config_value(make_args(**values)))

    def test_operational_flags_alone_do_not_count_as_config_values(self):
        self.assertFalse(provision.has_config_value(make_args()))

    def test_swarm_and_hopping_values_are_written_to_csv(self):
        args = make_args(
            hop_channels="1,6,11",
            hop_dwell=250,
            seed_token="token-123",
            swarm_hb=15,
            swarm_ingest=3,
        )

        rows = csv_rows(provision.build_nvs_csv(args))
        values_by_key = {row["key"]: row["value"] for row in rows}

        self.assertEqual(values_by_key["hop_count"], "3")
        self.assertEqual(values_by_key["chan_list"], "01060b")
        self.assertEqual(values_by_key["dwell_ms"], "250")
        self.assertEqual(values_by_key["seed_token"], "token-123")
        self.assertEqual(values_by_key["swarm_hb"], "15")
        self.assertEqual(values_by_key["swarm_ingest"], "3")


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