from __future__ import annotations

import json
import os
from typing import List

from logic import Medication

STORE_PATH = os.environ.get("PILLPAL_STORE", "meds.json")


def load_meds() -> List[Medication]:
    if not os.path.exists(STORE_PATH):
        return []
    try:
        with open(STORE_PATH, "r", encoding="utf-8") as f:
            raw = json.load(f)
    except (json.JSONDecodeError, OSError):
        return []
    return [Medication(**item) for item in raw]


def save_meds(meds: List[Medication]) -> None:
    with open(STORE_PATH, "w", encoding="utf-8") as f:
        json.dump([m.to_dict() for m in meds], f, indent=2)