#!/usr/bin/env bash
set -euo pipefail

RUN_DIR="${1:-}"

usage() {
  cat <<'USAGE'
Usage:
  tests/compat/verify_run_abi.sh <successful-run-directory>
USAGE
}

if [[ -z "$RUN_DIR" || "$RUN_DIR" == "-h" || "$RUN_DIR" == "--help" ]]; then
  usage >&2
  exit 2
fi
[[ -d "$RUN_DIR" ]] || { echo "missing run directory: $RUN_DIR" >&2; exit 2; }

required_files=(
  run-meta.json
  run-summary.json
  daemon-status.json
  report.json
  input.cir
  result.ccr
  vrps.csv
  vaps.csv
  validation-contract.json
  stage-timing.json
  stdout.log
  stderr.log
  process-time.txt
)
for name in "${required_files[@]}"; do
  [[ -f "$RUN_DIR/$name" ]] || { echo "missing ABI file: $RUN_DIR/$name" >&2; exit 1; }
done

python3 - "$RUN_DIR" <<'PY'
import csv
import json
import pathlib
import sys

run_dir = pathlib.Path(sys.argv[1])
meta = json.loads((run_dir / "run-meta.json").read_text(encoding="utf-8"))
summary = json.loads((run_dir / "run-summary.json").read_text(encoding="utf-8"))
daemon = json.loads((run_dir / "daemon-status.json").read_text(encoding="utf-8"))
contract = json.loads((run_dir / "validation-contract.json").read_text(encoding="utf-8"))
report = json.loads((run_dir / "report.json").read_text(encoding="utf-8"))

checks = {
    "run-meta status": meta.get("status") == "success",
    "run-meta id": meta.get("run_id") == run_dir.name,
    "run-summary status": summary.get("status") == "success",
    "run-summary exit": summary.get("exitCode") == 0,
    "run-summary id": summary.get("runId") == run_dir.name,
    "daemon state": daemon.get("state") == "exited",
    "daemon last run": daemon.get("lastRunId") == run_dir.name,
    "contract schema": contract.get("schemaVersion") == 1,
    "report format": report.get("format_version") == 2,
}
failed = [name for name, passed in checks.items() if not passed]
if failed:
    raise SystemExit("ABI semantic checks failed: " + ", ".join(failed))

expected_headers = {
    "vrps.csv": ["ASN", "IP Prefix", "Max Length", "Trust Anchor"],
    "vaps.csv": ["Customer ASN", "Providers", "Trust Anchor"],
}
for name, expected in expected_headers.items():
    with (run_dir / name).open(newline="", encoding="utf-8") as handle:
        actual = next(csv.reader(handle), [])
    if actual != expected:
        raise SystemExit(f"{name} header changed: expected={expected!r} actual={actual!r}")

print(f"normal run ABI verified: {run_dir}")
PY