#!/usr/bin/env python3
"""Validate golden corpus case structure."""
from __future__ import annotations

import json
import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parents[2]
CORPUS = ROOT / "bench" / "golden-corpus" / "categories"

REQUIRED = [
    "case-manifest.json",
    "run-manifest.json",
    "input/sbom-cyclonedx.json",
    "input/sbom-spdx.json",
    "input/image.tar.gz",
    "expected/verdict.json",
    "expected/evidence-index.json",
    "expected/unknowns.json",
    "expected/delta-verdict.json",
]


def validate_case(case_dir: Path) -> list[str]:
    missing = []
    for rel in REQUIRED:
        if not (case_dir / rel).exists():
            missing.append(rel)
    return missing


def main() -> int:
    if not CORPUS.exists():
        print(f"Corpus path not found: {CORPUS}")
        return 1

    errors = []
    cases = sorted([p for p in CORPUS.rglob("*") if p.is_dir() and (p / "case-manifest.json").exists()])
    for case in cases:
        missing = validate_case(case)
        if missing:
            errors.append({"case": str(case.relative_to(ROOT)), "missing": missing})

    if errors:
        print(json.dumps({"status": "fail", "errors": errors}, indent=2))
        return 1

    print(json.dumps({"status": "ok", "cases": len(cases)}, indent=2))
    return 0


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