"""OneTrust Cookie Consent.

URL: cdn.cookielaw.org/consent/<id>/<id>.json
     OR cdn.cookielaw.org/consent/<id>/<lang>.json
Schema: Groups[] with GroupName, GroupDescription, Cookies[]
"""

import re

MATCHER = re.compile(r"cdn\.cookielaw\.org/consent/[^/]+/[^/]+\.json", re.I)

_TAG_RE = re.compile(r"<[^>]+>")
_WS_RE = re.compile(r"\s+")


def _clean(text: str) -> str:
    no_tags = _TAG_RE.sub(" ", text)
    no_tags = no_tags.replace("&nbsp;", " ").replace("&amp;", "&")
    return _WS_RE.sub(" ", no_tags).strip()


def reconstruct(d: dict) -> str:
    parts: list[str] = ["# Cookie-Richtlinie (OneTrust)"]

    # Optional preamble fields
    for key in ("Description", "PolicyText", "PolicyDescription"):
        val = d.get(key)
        if val:
            parts.append("")
            parts.append(_clean(str(val)))

    groups = d.get("Groups") or d.get("groups") or []
    for g in groups:
        name = g.get("GroupName") or g.get("name") or ""
        desc = g.get("GroupDescription") or g.get("description") or ""
        parts.append("")
        parts.append(f"## {name}")
        if desc:
            parts.append(_clean(str(desc)))

        cookies = g.get("Cookies") or g.get("cookies") or []
        for c in cookies[:50]:
            cn = c.get("Name") or c.get("name") or ""
            cp = c.get("Provider") or c.get("provider") or ""
            cd = c.get("description") or c.get("Description") or ""
            ce = c.get("Length") or c.get("expires") or ""
            line = f"- {cn}"
            if cp:
                line += f" ({cp})"
            if cd:
                line += f" — {cd[:120]}"
            if ce:
                line += f" — Speicherdauer: {ce}"
            parts.append(line)

    return "\n".join(parts)