Function build_savings_summary

src/semble/stats.py:107–142

Read savings.jsonl and return a SavingsSummary.

(path: Path | None = None)

def build_savings_summary(path: Path | None = None) -> SavingsSummary:
    """Read savings.jsonl and return a SavingsSummary."""
    if path is None:
        path = _get_stats_file()
    now = datetime.now(timezone.utc)
    today = now.date()
    seven_days_ago = (now - timedelta(days=7)).date()

    buckets = {
        "Today": BucketStats(),
        "Last 7 days": BucketStats(),
        "All time": BucketStats(),
    }
    call_type_counts: defaultdict[str, int] = defaultdict(int)

    with path.open() as f:
        for line in f:
            try:
                record = json.loads(line)
            except json.JSONDecodeError:
                logger.warning("Skipping malformed JSON line in stats file")
                continue
            snippet_chars = record["snippet_chars"]
            file_chars = record["file_chars"]
            call_type = record["call"]
            call_type_counts[call_type] += 1
            dt = datetime.fromtimestamp(record["ts"], tz=timezone.utc)
            in_today = dt.date() == today
            in_last_7 = dt.date() > seven_days_ago
            buckets["All time"].add(snippet_chars, file_chars)
            if in_last_7:
                buckets["Last 7 days"].add(snippet_chars, file_chars)
            if in_today:
                buckets["Today"].add(snippet_chars, file_chars)

    return SavingsSummary(buckets=buckets, call_type_counts=dict(call_type_counts))


def _format_token_count(tokens: int) -> str: