from pathlib import Path

from app import _events_from_job_logs


def test_job_log_event_parser_handles_prefix_suffix_and_ansi():
    logs = """
2026-06-02T10:00:00Z stdout: \x1b[32m{"ts":"2026-06-02T10:00:00+00:00","step":"bootstrap","status":"success","message":"ok"}\x1b[0m
INFO prefix {"ts":"2026-06-02T10:01:00+00:00","step":"pi_run","status":"running","message":"Pi"} trailing text
"""
    events = _events_from_job_logs(logs)
    assert [e["step"] for e in events] == ["bootstrap", "pi_run"]


def test_progress_endpoint_fetches_deeper_job_log_window():
    app = Path("app.py").read_text(encoding="utf-8")
    assert "max_lines=1000" in app
    assert "JSONDecoder().raw_decode" not in app  # implementation uses decoder variable
    assert "decoder.raw_decode" in app
    assert "ANSI_RE" in app


def test_frontend_progress_is_monotonic_per_run():
    js = Path("web/static/progress.js").read_text(encoding="utf-8")
    assert "const progressStability" in js
    assert "function stabilizeProgressPayload" in js
    assert "Math.max(rawProgress,progressStability.progress)" in js
    assert "timelineFurthestIndex" in js
    assert "resetProgressStability(runId)" in Path("web/static/app.js").read_text(encoding="utf-8")


def test_light_poll_cannot_reset_timeline_signature_to_earlier_steps():
    js = Path("web/static/progress.js").read_text(encoding="utf-8")
    assert "rawIndex>=progressStability.furthestIndex" in js
    assert "cloneTimeline(progressStability.timeline)" in js


def test_app_version_v67():
    assert '"version": "v74-grouped-timeline-rings"' in Path("app.py").read_text(encoding="utf-8")