"""Verify decode_waveform_v2 against BW ASCII truth for all fixtures."""
import sys
sys.path.insert(0, ".")
from analysis.load_bundle import _parse_txt
from minimateplus.waveform_codec import decode_waveform_v2


def main():
    for stem in ("M529LL1A.SP0", "M529LL1A.SS0", "M529LL1A.SV0",
                 "M529LL1L.JQ0", "M529LL1L.V70"):
        path = f"tests/fixtures/5-11-26/{stem}"
        with open(path, "rb") as f:
            body = f.read()[43:-26]
        _, samples = _parse_txt(path + ".TXT")
        decoded = decode_waveform_v2(body)
        if decoded is None:
            print(f"{stem}: decoder returned None")
            continue

        print(f"\n=== {stem} ===")
        for ch in ("Tran", "Vert", "Long"):
            truth = [round(v * 200) for v in samples[ch]]
            pred = decoded[ch]
            n = min(len(pred), len(truth))
            matches = sum(1 for i in range(n) if pred[i] == truth[i])
            div = next((i for i in range(n) if pred[i] != truth[i]), -1)
            print(f"  {ch}: decoded={len(pred):>5}  truth={len(truth):>5}  "
                  f"matches={matches:>5}/{n:<5}  first div={div}")


if __name__ == "__main__":
    main()