#!/usr/bin/env python3
# -----------------------------------------------------------------------------
# Groupe KA — Annuaire des déménageurs du Québec (module partagé Lou-Ka/Immo-Ka)
# demenageurs.py : sert data/demenageurs.json — 565+ entreprises de déménagement
# couvrant les 17 régions administratives (balayage Google Places via Serper).
# Régénération du dataset : scripts/build_demenageurs.py puis remplacer le JSON
# (identique sur Lou-Ka et Immo-Ka — garder les deux copies synchronisées).
# -----------------------------------------------------------------------------
from __future__ import annotations

import json
import threading
from pathlib import Path

from fastapi import APIRouter

ROOT = Path(__file__).resolve().parent.parent
DATA = ROOT / "data" / "demenageurs.json"

router = APIRouter()
_cache: dict = {"mtime": None, "doc": None}
_lock = threading.Lock()


def load() -> dict:
    """Charge (avec cache par mtime) l'annuaire canonique des déménageurs."""
    try:
        mtime = DATA.stat().st_mtime
    except FileNotFoundError:
        return {"generated": None, "count": 0, "movers": [], "regions": []}
    with _lock:
        if _cache["doc"] is None or mtime != _cache["mtime"]:
            doc = json.loads(DATA.read_text(encoding="utf-8"))
            regs: dict[str, int] = {}
            for m in doc.get("movers", []):
                regs[m["region"]] = regs.get(m["region"], 0) + 1
            doc["regions"] = [{"region": r, "n": n}
                              for r, n in sorted(regs.items(),
                                                 key=lambda x: (-x[1], x[0]))]
            _cache["doc"], _cache["mtime"] = doc, mtime
        return _cache["doc"]


@router.get("/api/demenageurs")
def api_demenageurs(region: str | None = None, q: str | None = None):
    """Annuaire complet des déménageurs du Québec (filtres : région, texte)."""
    doc = load()
    movers = doc.get("movers", [])
    if region:
        movers = [m for m in movers if m["region"] == region]
    if q:
        needle = q.strip().lower()
        movers = [m for m in movers
                  if needle in (m["name"] + " " + m["city"]).lower()]
    return {"generated": doc.get("generated"),
            "total": doc.get("count", 0),
            "count": len(movers),
            "regions": doc.get("regions", []),
            "movers": movers}