"""Render the figures for every run in data/ into figures/<subject>/<session>/ (flat: overview.png,
data-*.png as recorded, derived-*.png computed).

    python scripts/make_figures.py              # only runs that have no figures yet
    python scripts/make_figures.py --force      # re-render everything (bloats the repo history -- rarely)

Doubles as the dataset's smoke test: it loads and plots every run, so if it finishes clean the data and
the lvl_running package agree. Exit code 1 if any run fails to load or plot.
"""
from __future__ import annotations

import argparse
import os
import sys
import traceback

from lvl_running import iter_sessions, plot_session

HERE = os.path.dirname(os.path.abspath(__file__))
ROOT = os.path.dirname(HERE)                     # the dataset folder (scripts/ lives inside it)


def main(argv=None) -> int:
    ap = argparse.ArgumentParser(description=__doc__.splitlines()[0])
    ap.add_argument("--data", default=os.path.join(ROOT, "data"))
    ap.add_argument("--figures", default=os.path.join(ROOT, "figures"))
    ap.add_argument("--force", action="store_true", help="re-render runs that already have figures")
    a = ap.parse_args(argv)

    done = skipped = failed = 0
    for run_dir in iter_sessions(a.data):
        rel = os.path.dirname(os.path.relpath(run_dir, a.data))      # S01/R01 (the level/ folder is dropped)
        out = os.path.join(a.figures, rel)
        if not a.force and os.path.isdir(out) and os.listdir(out):
            skipped += 1
            continue
        try:
            made = [k for k, p in plot_session(run_dir, out).items() if p]
            print(f"  {rel}: {', '.join(made) or 'no figures'}")
            done += 1
        except Exception:
            print(f"  FAIL {rel}\n{traceback.format_exc()}", file=sys.stderr)
            failed += 1
    print(f"{done} rendered, {skipped} already had figures, {failed} failed -> {a.figures}")
    return 1 if failed else 0


if __name__ == "__main__":
    raise SystemExit(main())