#!/usr/bin/env python3
"""Fail if tracked Agrarian assets include paid or unclear costs."""

from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]
REGISTER = ROOT / "Docs" / "Art" / "AssetLicenses.md"

ALLOWED_COSTS = {"free", "$0", "0", "n/a", "na"}
BLOCKED_WORDS = {
    "paid",
    "purchased",
    "purchase",
    "subscription",
    "unknown",
    "unclear",
    "tbd",
    "marketplace bundle",
}


def parse_markdown_table_rows(text: str) -> list[list[str]]:
    rows: list[list[str]] = []
    for line in text.splitlines():
        stripped = line.strip()
        if not stripped.startswith("|") or "---" in stripped:
            continue
        cells = [cell.strip() for cell in stripped.strip("|").split("|")]
        if cells and cells[0] != "Asset":
            rows.append(cells)
    return rows


def main() -> None:
    if not REGISTER.exists():
        raise SystemExit(f"Missing asset license register: {REGISTER}")

    rows = parse_markdown_table_rows(REGISTER.read_text(encoding="utf-8"))
    failures: list[str] = []

    for row in rows:
        if len(row) < 5:
            failures.append(f"Malformed asset license row: {' | '.join(row)}")
            continue

        asset = row[0]
        cost = row[4].strip().lower()
        full_row = " ".join(row).lower()

        if not cost:
            failures.append(f"{asset}: cost is blank")
        elif cost not in ALLOWED_COSTS:
            failures.append(f"{asset}: cost {row[4]!r} is not free-only")

        for blocked in BLOCKED_WORDS:
            if blocked in full_row:
                failures.append(f"{asset}: blocked free-only word found: {blocked!r}")

    if failures:
        raise SystemExit("\n".join(failures))

    print(f"Asset license free-only verification complete: {len(rows)} entries.")


if __name__ == "__main__":
    main()