"""Export the deliverable notebooks as LLM-readable report sources.

Executes each notebook fresh (widget defaults — or whatever defaults you edit in),
then writes both formats to exports/:

  exports/<notebook>.html  — human-reviewable, tables render
  exports/<notebook>.md    — leanest LLM input

Plotly figures export as JavaScript an LLM cannot read; each notebook's
machine-readable appendix section carries every number behind them.

Run from the project root:  python scripts/export_report.py [name-filter]
An optional argument exports only notebooks whose filename contains it,
e.g.  python scripts/export_report.py migration
"""
from __future__ import annotations

import subprocess
import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parent.parent
NOTEBOOKS = [
    ROOT / "notebooks" / "ctm_business_case_corrected.ipynb",
    ROOT / "notebooks" / "ctm_migration_wfm.ipynb",
]
EXPORTS = ROOT / "exports"


def main() -> None:
    picked = [nb for nb in NOTEBOOKS
              if len(sys.argv) < 2 or sys.argv[1] in nb.name]
    if not picked:
        sys.exit(f"no notebook matches {sys.argv[1]!r}")
    EXPORTS.mkdir(exist_ok=True)
    for nb in picked:
        for fmt in ("html", "markdown"):
            subprocess.run(
                [sys.executable, "-m", "nbconvert", "--execute",
                 "--to", fmt, "--output-dir", str(EXPORTS), str(nb)],
                check=True, cwd=ROOT,
            )
    for p in sorted(EXPORTS.iterdir()):
        if p.suffix in (".html", ".md"):
            print(f"wrote {p.relative_to(ROOT)} ({p.stat().st_size / 1024:,.0f} KB)")


if __name__ == "__main__":
    main()