from oms_tui.parser import parse_line

DLL = (
    "(telegram) DLL L=2a C=44 (from meter SND_NR) M=2c2d (KAM) A=76348799 "
    "VER=1b TYPE=16 (Cold water meter) (driver kamwater) DEV=rtlwmbus[] RSSI=97"
)
JSON = (
    '{"_":"telegram","media":"cold water","meter":"kamwater","name":"Vatten",'
    '"id":"76348799","total_m3":6.408,"target_m3":6.408,"status":"DRY",'
    '"timestamp":"2020-01-23T10:25:13Z","device":"rtlwmbus[]","rssi_dbm":97}'
)


def test_parse_dll():
    ev = parse_line(DLL)
    assert ev["type"] == "dll"
    assert ev["id"] == "76348799"
    assert ev["manufacturer"] == "KAM"
    assert ev["version"] == "1b"
    assert ev["media"] == "Cold water meter"
    assert ev["driver"] == "kamwater"
    assert ev["rssi"] == 97


def test_parse_json():
    ev = parse_line(JSON)
    assert ev["type"] == "json"
    assert ev["id"] == "76348799"
    assert ev["driver"] == "kamwater"
    assert ev["fields"]["total_m3"] == 6.408
    # metadata keys are excluded from measurement fields
    assert "timestamp" not in ev["fields"]
    assert "rssi_dbm" not in ev["fields"]


def test_parse_ell_encryption():
    line = (
        "(telegram) ELL CI=8d CC=20 (slow_resp sync) ACC=91 SN=d37cac21 "
        "(AES_CTR session=3 time=1755085) CRC=576c"
    )
    ev = parse_line(line)
    assert ev["type"] == "ell"
    assert ev["enc"] == "AES-CTR"
    assert ev["session"] == "3"


def test_parse_tpl_security_mode():
    line = "(telegram) TPL CI=7a ACC=85 STS=00 CFG=8560 (bidirectional AES_CBC_IV nb=6 cntn=0 ra=0 hc=0)"
    ev = parse_line(line)
    assert ev["type"] == "tpl"
    assert ev["sec_mode"] == 5
    assert ev["enc"] == "AES-CBC"
    assert ev["nb"] == "6"


def test_parse_tpl_no_security():
    ev = parse_line("(telegram) TPL CI=78")
    assert ev["type"] == "tpl"
    assert ev["sec_mode"] == 0


def test_parse_noise_returns_none():
    assert parse_line("(config) number of meters: 0") is None
    assert parse_line("") is None