using System.Collections.Generic;
using UnityEngine;

public static class ShopUnlocks
{
    static string Key(string shop) => $"ShopUnlocks_{shop}";

    public static bool IsUnlocked(string id, string shop)
    {
        if (string.IsNullOrEmpty(id)) return false;
        var data = PlayerPrefs.GetString(Key(shop), "");
        if (string.IsNullOrEmpty(data)) return false;
        var parts = data.Split(',');
        for (int i = 0; i < parts.Length; i++) if (parts[i] == id) return true;
        return false;
    }

    public static void Unlock(string id, string shop)
    {
        if (string.IsNullOrEmpty(id)) return;
        var list = new List<string>();
        var data = PlayerPrefs.GetString(Key(shop), "");
        if (!string.IsNullOrEmpty(data)) list.AddRange(data.Split(','));
        if (!list.Contains(id)) list.Add(id);
        PlayerPrefs.SetString(Key(shop), string.Join(",", list));
        PlayerPrefs.Save();
    }

    public static void EnsureUnlocked(string id, string shop)
    {
        if (!IsUnlocked(id, shop)) Unlock(id, shop);
    }

    public static void Reset(string shop)
    {
        PlayerPrefs.DeleteKey(Key(shop));
    }
}