"""BMW Group ePaaS (Enterprise Privacy as a Service).

URL: /epaas/prod/policypage/<tenant>/<config>/<locale>.epaas.json
Schema: policyPageMetadata + categories + providers
"""

import re

MATCHER = re.compile(r"/epaas/prod/policypage/.+\.epaas\.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;", "&")
               .replace("&lt;", "<").replace("&gt;", ">")
               .replace("&quot;", '"').replace("&#39;", "'"))
    return _WS_RE.sub(" ", no_tags).strip()


def reconstruct(d: dict) -> str:
    meta = d.get("policyPageMetadata", {}) or {}
    parts: list[str] = ["# Cookie-Richtlinie"]

    for key in ("heading", "subHeading", "prologue", "dataController", "epilogue"):
        val = meta.get(key)
        if val:
            parts.append("")
            parts.append(_clean(str(val)))

    cats = d.get("categories", []) or []
    if cats:
        parts.append("")
        parts.append("## Cookie-Kategorien")
        for c in cats:
            name = c.get("name") or c.get("id") or ""
            desc = c.get("description") or c.get("descriptionHtml") or ""
            parts.append("")
            parts.append(f"### {name}")
            parts.append(_clean(str(desc)))

    providers = d.get("providers", []) or []
    if providers:
        parts.append("")
        parts.append(f"## Anbieter ({len(providers)})")
        for p in providers:
            name = p.get("name") or p.get("id") or ""
            purpose = (p.get("purpose") or "").strip()
            country = (p.get("country") or "").strip()
            persistence = (p.get("persistencePurposeDescription") or "").strip()
            line = f"- {name}"
            if purpose:
                line += f" — Zweck: {purpose}"
            if country:
                line += f" — Sitz: {country}"
            if persistence:
                line += f" — Speicherdauer: {persistence[:120]}"
            parts.append(line)

    if meta.get("expiresAfter"):
        parts.append("")
        parts.append(f"Speicherdauer: {meta['expiresAfter']}")
    if meta.get("persistencePurposeText"):
        parts.append(_clean(str(meta["persistencePurposeText"])))

    return "\n".join(parts)