# -----------------------------------------------------------------------------
# Lou-Ka — Location court terme
# connectors/rezerve.py : Rëzerve / reserver.ca (Charlevoix, Laurentides,
# Estrie, Lanaudière, Mauricie, Outaouais…)
#
# Gestionnaire québécois (~85 chalets) sur moteur Guesty. Le site reserver.ca
# est un Next.js (App Router) : le catalogue /chalets est RENDU SERVEUR et le
# payload React Flight (`self.__next_f.push([1,"…"])`) contient l'objet
# {"listings":[…]} complet — id Guesty, slug, nom, description fr, photos,
# chambres, sdb, lits, capacité, prix « à partir de » CAD, ville, adresse,
# lat/lng, commodités, numéro CITQ, heures d'arrivée/départ. UNE SEULE requête
# suffit, aucune page détail à visiter.
#   External_id = id Guesty (stable). URL publique : /chalets/<slug>.
# -----------------------------------------------------------------------------
from __future__ import annotations

import json
import re

from ..schema import StListing
from .base import StConnector

SITE = "https://reserver.ca"


def _num(v) -> float | None:
    try:
        return float(v) if v not in (None, "") else None
    except (TypeError, ValueError):
        return None


def _flight_blob(html: str) -> str:
    """Reconstitue le payload React Flight (chunks __next_f concaténés)."""
    parts = []
    for c in re.findall(r'self\.__next_f\.push\(\[1,"((?:[^"\\]|\\.)*)"\]\)',
                        html):
        try:
            parts.append(json.loads(f'"{c}"'))
        except ValueError:
            continue
    return "".join(parts)


class Rezerve(StConnector):
    source_id = "rezerve"

    def _catalog(self) -> list[dict]:
        html = self.get(f"{SITE}/chalets").text
        blob = _flight_blob(html)
        i = blob.find('{"listings":[')
        if i < 0:
            return []
        obj, _ = json.JSONDecoder().raw_decode(blob[i:])
        return obj.get("listings") or []

    @staticmethod
    def _description(it: dict) -> str:
        desc = str(it.get("description") or "")
        if not desc or desc.startswith("$"):     # référence Flight non résolue
            desc = str((it.get("descriptions") or {}).get("fr") or "")
        if desc.startswith("$"):
            desc = ""
        return re.sub(r"\s+", " ", desc).strip()[:4000]

    # -- contrat ----------------------------------------------------------
    def fetch(self) -> list[StListing]:
        listings: list[StListing] = []
        for it in self._catalog():
            lid = str(it.get("id") or "").strip()
            slug = (it.get("slug") or "").strip()
            title = (it.get("name") or "").strip()
            if not lid or not slug or not title:
                continue

            geo = it.get("geo") or {}
            citq = str((it.get("citq") or {}).get("number") or "").strip()
            street = (it.get("addressStreet") or "").strip()
            postal = (it.get("addressPostal") or "").strip()
            price = _num(it.get("priceFromCAD"))

            details = {k: v for k, v in {
                "guesty_id": lid,
                "area_sqft": it.get("areaSquareFeet"),
                "check_in": it.get("checkInTime"),
                "check_out": it.get("checkOutTime"),
                "tags": it.get("tags") or None,
            }.items() if v}

            listings.append(StListing(
                source=self.source_id,
                external_id=lid,
                url=f"{SITE}/chalets/{slug}",
                title=title,
                property_type="Chalet",
                address=" ".join(p for p in (street, postal) if p),
                city=(it.get("city") or "").strip(),
                region="",                # ville + lat/lng font foi
                price_night=price,
                price_label=(f"à partir de {price:.0f} $ / nuit"
                             if price else ""),
                capacity=_num(it.get("maxGuests")),
                bedrooms=_num(it.get("bedrooms")),
                beds=_num(it.get("beds")),
                bathrooms=_num(it.get("bathrooms")),
                citq=citq if re.fullmatch(r"\d{6}", citq) else "",
                description=self._description(it),
                amenities=[a for a in (it.get("amenities") or [])
                           if isinstance(a, str)][:80],
                details=details,
                images=[u for u in (it.get("images") or [])
                        if isinstance(u, str)][:20],
                lat=_num(geo.get("lat")),
                lng=_num(geo.get("lng")),
            ))
        return listings