"""835 SVC-level parser with member_id at SVC scope."""
from pathlib import Path
from decimal import Decimal
from cyclone.rebill.parse_835_svc import parse_835_svc

FIX = Path(__file__).parent / "fixtures" / "835_sample_svc_with_member.txt"

def test_parse_835_svc_extracts_member_id():
    """NM1*QC NM109 at the CLP scope must propagate to every SVC row."""
    rows = list(parse_835_svc(FIX))
    assert len(rows) >= 1
    for r in rows:
        assert r.member_id == "J813715"
        assert r.procedure  # non-empty
        assert r.svc_date   # non-empty
        assert r.charge > 0

def test_parse_835_svc_extracts_cas_reasons():
    """CAS segments after DTM*472 must be captured (post-DTM*472 ordering)."""
    rows = list(parse_835_svc(FIX))
    # at least one row should have an OA-18 reason
    assert any("OA-18" in r.cas_reasons for r in rows)

def test_parse_835_svc_picks_up_status_22_reversals():
    """Status 22 (reversal of previous payment) must be preserved."""
    rows = list(parse_835_svc(FIX))
    statuses = {r.status for r in rows}
    assert statuses & {"1", "4", "22"}  # at least one of each present