import datetime as dt
import pathlib
import tempfile
import unittest

from tools import gb32960_e2e_smoke as smoke


class Gb32960E2ESmokeTest(unittest.TestCase):
    def test_parse_frame_info_reads_vin_and_collect_time(self):
        frame = bytes.fromhex(
            "232302fe4c544553543230323630363239303030310100081a061d10060f"
            "02002a"
        )

        info = smoke.parse_frame_info(frame)

        self.assertEqual(info.vin, "LTEST202606290001")
        self.assertEqual(info.command, 0x02)
        self.assertEqual(info.event_time, dt.datetime(2026, 6, 29, 16, 6, 15, tzinfo=smoke.SHANGHAI))

    def test_query_range_surrounds_event_time_with_offset(self):
        date_from, date_to = smoke.query_range(
            dt.datetime(2026, 6, 29, 8, 6, 15, tzinfo=smoke.SHANGHAI),
            minutes=5,
        )

        self.assertEqual(date_from, "2026-06-29T08:01:15+08:00")
        self.assertEqual(date_to, "2026-06-29T08:11:15+08:00")

    def test_valid_ack_requires_frame_marker(self):
        self.assertTrue(smoke.valid_ack(b"##\x02\x01"))
        self.assertTrue(smoke.valid_ack(b"$$\x02\x01"))
        self.assertFalse(smoke.valid_ack(b""))
        self.assertFalse(smoke.valid_ack(b"\x7e\x80"))

    def test_archive_path_maps_archive_uri_to_root(self):
        path = smoke.archive_path(
            pathlib.Path("/tmp/archive"),
            "archive://2026/06/29/GB32960/LTEST202606290001/frame.bin",
        )

        self.assertEqual(
            path,
            pathlib.Path("/tmp/archive/2026/06/29/GB32960/LTEST202606290001/frame.bin"),
        )

    def test_parse_field_keys_trims_blank_items(self):
        keys = smoke.parse_field_keys("speed_kmh, total_mileage_km, ,longitude")

        self.assertEqual(keys, ["speed_kmh", "total_mileage_km", "longitude"])

    def test_first_raw_uri_reads_record_archive_uri(self):
        uri = smoke.first_raw_uri([
            {"rawArchiveUri": ""},
            {"rawArchiveUri": "archive://2026/06/29/GB32960/LTEST/frame.bin"},
        ])

        self.assertEqual(uri, "archive://2026/06/29/GB32960/LTEST/frame.bin")

    def test_check_archive_ignores_duplicate_uris(self):
        with tempfile.TemporaryDirectory() as temp_dir:
            root = pathlib.Path(temp_dir)
            archive_file = root / "2026/06/29/GB32960/LTEST/frame.bin"
            archive_file.parent.mkdir(parents=True)
            archive_file.write_bytes(b"raw")

            checked = smoke.check_archive(
                root,
                [
                    {"rawArchiveUri": "archive://2026/06/29/GB32960/LTEST/frame.bin"},
                    {"rawArchiveUri": "archive://2026/06/29/GB32960/LTEST/frame.bin"},
                ],
                limit=3,
            )

        self.assertEqual(checked, 1)


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