// Lumarcade SDK for Unity WebGL (MIT). Attach to a GameObject named "Lumarcade" in your first scene.
// In the Editor and non-WebGL builds every call is a safe no-op so you can test normally.
using System;
using System.Runtime.InteropServices;
using UnityEngine;

public class Lumarcade : MonoBehaviour
{
    public string gameId = "your-game-id";
    public static Lumarcade Instance { get; private set; }
    public static bool IsReady { get; private set; }

    public event Action<string> Ready;            // JSON: user, platform, inventory, equipped
    public event Action<bool> RewardedResult;     // true → give the reward
    public event Action AdFinished;               // interstitial closed (or skipped for Pass players)
    public event Action<string> LevelReward;      // JSON: { granted: [{id, name}] }
    public event Action<string> SaveLoaded;       // JSON: { key, value }

#if UNITY_WEBGL && !UNITY_EDITOR
    [DllImport("__Internal")] static extern void PF_Init(string gameId, string objectName);
    [DllImport("__Internal")] static extern void PF_GameplayStart();
    [DllImport("__Internal")] static extern void PF_GameplayStop();
    [DllImport("__Internal")] static extern void PF_LoadingProgress(float p);
    [DllImport("__Internal")] static extern void PF_Loaded();
    [DllImport("__Internal")] static extern void PF_LevelComplete(int level, int score);
    [DllImport("__Internal")] static extern void PF_ShowInterstitial();
    [DllImport("__Internal")] static extern void PF_ShowRewarded();
    [DllImport("__Internal")] static extern void PF_SaveSet(string key, string json);
    [DllImport("__Internal")] static extern void PF_SaveGet(string key);
    [DllImport("__Internal")] static extern int PF_IsSubscriber();
    [DllImport("__Internal")] static extern string PF_Equipped(string type);
    [DllImport("__Internal")] static extern void PF_SubmitScore(int score);
#else
    static void PF_Init(string g, string o) { Instance?.OnLumarcadeReady("{\"standalone\":true}"); }
    static void PF_GameplayStart() { }
    static void PF_GameplayStop() { }
    static void PF_LoadingProgress(float p) { }
    static void PF_Loaded() { }
    static void PF_LevelComplete(int level, int score) { }
    static void PF_ShowInterstitial() { Instance?.OnAdFinished("interstitial"); }
    static void PF_ShowRewarded() { Instance?.OnRewardedResult("1"); }
    static void PF_SaveSet(string key, string json) { PlayerPrefs.SetString("pf_" + key, json); }
    static void PF_SaveGet(string key) { Instance?.OnSaveLoaded("{\"key\":\"" + key + "\",\"value\":" + PlayerPrefs.GetString("pf_" + key, "null") + "}"); }
    static int PF_IsSubscriber() { return 0; }
    static string PF_Equipped(string type) { return ""; }
    static void PF_SubmitScore(int score) { }
#endif

    void Awake()
    {
        if (Instance != null) { Destroy(gameObject); return; }
        Instance = this;
        DontDestroyOnLoad(gameObject);
        PF_Init(gameId, gameObject.name);
    }

    public void GameplayStart() => PF_GameplayStart();
    public void GameplayStop() => PF_GameplayStop();
    public void LoadingProgress(float p) => PF_LoadingProgress(p);
    public void Loaded() => PF_Loaded();
    public void LevelComplete(int level, int score) => PF_LevelComplete(level, score);
    public void ShowInterstitial() => PF_ShowInterstitial();
    public void ShowRewarded() => PF_ShowRewarded();
    public void Save(string key, string json) => PF_SaveSet(key, json);
    public void Load(string key) => PF_SaveGet(key);
    public bool IsSubscriber => PF_IsSubscriber() == 1;
    /// <summary>Equipped item id for a slot type such as "car_skin" or "launcher" (empty if none).</summary>
    public string Equipped(string type) => PF_Equipped(type) ?? "";
    public void SubmitScore(int score) => PF_SubmitScore(score);

    // ---- callbacks from the .jslib (names must match) ----
    void OnLumarcadeReady(string json) { IsReady = true; Ready?.Invoke(json); }
    void OnLumarcadeError(string message) { Debug.LogWarning("Lumarcade: " + message); IsReady = true; Ready?.Invoke("{}"); }
    void OnRewardedResult(string ok) => RewardedResult?.Invoke(ok == "1");
    void OnAdFinished(string kind) => AdFinished?.Invoke();
    void OnLevelReward(string json) => LevelReward?.Invoke(json);
    void OnSaveLoaded(string json) => SaveLoaded?.Invoke(json);
}