import os
import json
import time

HISTORY_FILE = "aethas_history.json"

def load_history():
    if not os.path.exists(HISTORY_FILE):
        with open(HISTORY_FILE, 'w', encoding='utf-8') as f: 
            json.dump({}, f)
    with open(HISTORY_FILE, 'r', encoding='utf-8') as f: 
        return json.load(f)

def save_history(history):
    with open(HISTORY_FILE, 'w', encoding='utf-8') as f: 
        json.dump(history, f, indent=4)

def nettoyer_vieilles_discussions():
    history = load_history()
    now = time.time()
    un_an_en_secondes = 365 * 24 * 60 * 60
    a_supprimer = [cid for cid, data in history.items() if not data.get('pinned', False) and now - data.get('timestamp', now) > un_an_en_secondes]
    if a_supprimer:
        for cid in a_supprimer: 
            del history[cid]
        save_history(history)
        print(f"🧹 AETHAS CORE : Nettoyage auto terminé. {len(a_supprimer)} discussion(s) supprimée(s).")