import json
import logging
import os
from typing import Optional, Tuple


logger = logging.getLogger(__name__)

ORIGIN_CODES_PATH = "static/files/origin-codes.json"


def load_origin_codes() -> list[dict]:
    try:
        with open(ORIGIN_CODES_PATH, "r", encoding="utf-8") as file:
            return json.load(file)
    except (FileNotFoundError, json.JSONDecodeError):
        logger.error(f"Error loading origin codes from {ORIGIN_CODES_PATH}")
        return []


def get_city_id_and_code(origin_name: str) -> Tuple[Optional[int], Optional[str]]:
    """
    Truy xuất province_id và province_code từ file JSON tĩnh theo tên tỉnh/thành phố.

    Args:
        origin_name (str): Tên thành phố gốc

    Returns:
        Tuple[province_id, province_code] hoặc (None, None) nếu không tìm thấy
    """
    origin_name = origin_name.strip().lower()
    for entry in load_origin_codes():
        name = entry.get("name", "").lower()
        if name == origin_name:
            return entry.get("id"), entry.get("code")
    logger.warning(f"ID and Code not found for name: {origin_name}")
    return None, None