import time
import uuid
import 数据库连接 as db

def add_notification(target_account: str, notif_data: dict):
    from_user = notif_data.get("from_user")
    if target_account == from_user or not target_account: 
        return # 不给自己发通知
    
    users_db = db.load_data("users.json", default_data={})
    user_info = users_db.get(from_user, {})
    
    notif = {
        "id": f"msg_{int(time.time())}_{uuid.uuid4().hex[:6]}",
        "type": notif_data.get("type"), 
        "from_user": from_user,
        "from_name": user_info.get("name", from_user),
        "from_avatar": user_info.get("avatarDataUrl", "https://via.placeholder.com/150"),
        "target_item_id": notif_data.get("target_item_id", ""),
        "target_item_title": notif_data.get("target_item_title", ""),
        "content": notif_data.get("content", ""),
        "is_read": False,
        "created_at": int(time.time())
    }
    
    msgs_db = db.load_data("messages.json", default_data={})
    if target_account not in msgs_db: msgs_db[target_account] = []
    msgs_db[target_account].insert(0, notif)
    db.save_data("messages.json", msgs_db)