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

root=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd -P)
if [[ $# -gt 0 ]]; then
  [[ $# -eq 2 && $1 == --root && -d $2 ]] || { echo 'usage: verify-dwh-auth-docs.sh [--root DIRECTORY]' >&2; exit 2; }
  root=$(cd "$2" && pwd -P)
fi

python3 - "$root" <<'PY'
import pathlib, re, sys

root = pathlib.Path(sys.argv[1])
docs = {
    "server": "docs/install/dwh-auth-server.md",
    "client": "docs/install/dwh-auth-client-enrollment.md",
    "tls": "docs/install/dwh-auth-tls.md",
    "rollout": "docs/operations/psd-dwh-auth-rollout.md",
    "manual": "docs/testing/dwh-auth-manual-acceptance.md",
    "evidence": "docs/testing/evidence/psd-dwh-auth-rollout-report-template.md",
    "local": "docs/install/local-workspace-registry.md",
    "server_registry": "docs/install/server-workspace-registry.md",
    "psd": "docs/install/psd-workspace-setup.md",
    "guide": "docs/guida-utente.md",
    "index": "docs/index.md",
    "nav": "mkdocs.yml",
}
text = {}
for label, relative in docs.items():
    path = root / relative
    if not path.is_file():
        raise SystemExit(f"dwh-auth docs: missing {relative}")
    text[label] = path.read_text(encoding="utf-8")

requirements = {
    "server": ["/var/lib/dwh-auth", "root:dwh-auth", "2750", ".writer.lock", "0640", "/run/dwh-auth/verify.sock", "0660", "systemd", "key create", "key list", "key status", "key revoke", "check", "backup", "rollback", "disinstallazione", "rest_api", "postgres_direct", "ssh_tunnel"],
    "client": ["Workspace management", "Save runtime secrets", "API_KEY_FILE", "THT_WS_PSD_CLINICAL_DWH_API_KEY_FILE", "TLS_CA_FILE", "/rpc/ping", "rest_api", "postgres_direct", "ssh_tunnel", "401", "503", "rotazione", "revoca"],
    "tls": ["self-issued", ".it", ".com", "SAN", "TLS_CA_FILE", "openssl x509 -noout -fingerprint -sha256", "fuori banda", "rinnovo", "curl -k"],
    "rollout": ["Task 9", "Task 10", "IN_DISCUSSION", "postgres_direct", "rest_api", "legacy-shared", "nginx -t", "204", "401", "503", "Qdrant", "Ollama", "rollback"],
    "manual": ["204", "401", "503", "TLS", "registry", "postgres_direct", "ssh_tunnel"],
    "evidence": ["ID pubblici", "owner", "mode", "timestamp", "checksum", "approvazione"],
}
for label, tokens in requirements.items():
    lowered = text[label].lower()
    for token in tokens:
        if token.lower() not in lowered:
            raise SystemExit(f"dwh-auth docs: {docs[label]} lacks required topic: {token}")

for path in [root / docs[k] for k in ("server", "client", "tls", "rollout", "manual", "evidence", "local", "server_registry", "psd", "guide", "index")]:
    source = path.read_text(encoding="utf-8")
    for target in re.findall(r"(?<!!)\[[^]]*\]\(([^)#]+)(?:#[^)]+)?\)", source):
        if "://" in target or target.startswith("mailto:"):
            continue
        candidate = (path.parent / target).resolve()
        if not candidate.is_file() or root.resolve() not in candidate.parents:
            raise SystemExit(f"dwh-auth docs: broken local link {path.relative_to(root)} -> {target}")

nav = text["nav"]
for relative in (docs["server"], docs["client"], docs["tls"], docs["rollout"], docs["manual"], docs["evidence"]):
    nav_relative = relative.removeprefix("docs/")
    if nav.count(nav_relative) != 1:
        raise SystemExit(f"dwh-auth docs: navigation must include once: {nav_relative}")

corpus = "\n".join(text.values())
for pattern, label in [
    (r"thtdwh_v1\.[A-Za-z0-9_-]{16}\.[A-Za-z0-9_-]{43}", "credential literal"),
    (r"(?mi)^\s*secret_sha256\s*[:=]\s*[A-Za-z0-9_-]{16,}", "credential digest literal"),
    (r"(?mi)^\s*[A-Z][A-Z0-9_]*(?:API_KEY|SECRET|TOKEN|PASSWORD)\s*=\s*(?!/|<)[^\s#]+", "secret in environment"),
    (r"(?i)(?:curl|dwh-auth)[^\n]{0,240}(?:-H\s+['\"][^'\"]*X-API-Key\s*:|--(?:api-key|token|password)\b)", "secret in argv"),
    (r"(?im)^(?!.*(?:non usare|mai usare)).*curl\s+(?:[^\n]*\s)?(?:-k|--insecure)\b|verify_tls\s*=\s*false|insecure_skip_verify", "TLS bypass"),
    (r"(?i)chmod\s+0?[0-7][0-7][4-7]\s+[^\n]*(?:\.key|secret|provision)", "world-readable secret"),
    (r"(?m)^\s*nginx\s+-T\b", "raw Nginx capture"),
    (r"(?i)docker\s+compose[^\n]*\bdwh-auth\b", "Compose coupling"),
]:
    if re.search(pattern, corpus):
        raise SystemExit(f"dwh-auth docs: forbidden {label}")

print("dwh-auth documentation contract passed")
PY