using System;
using UnityEngine;

namespace SARD
{
    public static class SardInitializer
    {
        public static bool IsInitialized { get; private set; }
        public static int InitializationResult { get; private set; } = -1;
        public static string InitializationError { get; private set; }

        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
        private static void Initialize()
        {
            Application.quitting += Finalize;
            TryInitialize();
        }

        /// <summary>
        /// Attempt to initialize SARD. Can be called multiple times —
        /// if already initialized, returns true immediately.
        /// </summary>
        public static bool TryInitialize()
        {
            if (IsInitialized) return true;

            Debug.Log("[SARD] SardInitializer starting...");

            try
            {
                string userId = "marita";
                int result = SardIntegration.SardInitialize(null, null);
                InitializationResult = result;

                if (result == 0)
                {
                    IsInitialized = true;
                    InitializationError = null;
                    Debug.Log("[SARD] Anti-Cheat initialized successfully");

                    try
                    {
                        SardIntegration.SardSetUserId(userId);
                        Debug.Log($"[SARD] UserId set: {userId}");
                    }
                    catch (EntryPointNotFoundException)
                    {
                        Debug.LogWarning("[SARD] sardSetUserId not available in this armour.dll version — skipping");
                    }
                    return true;
                }
                else
                {
                    IsInitialized = false;
                    InitializationError = $"Initialization returned code: {result}";
                    Debug.LogWarning($"[SARD] {InitializationError}");
                    return false;
                }
            }
            catch (DllNotFoundException e)
            {
                IsInitialized = false;
                InitializationError = $"SARD DLL not found: {e.Message}";
                Debug.LogError($"[SARD] {InitializationError}");
                return false;
            }
            catch (EntryPointNotFoundException e)
            {
                IsInitialized = false;
                InitializationError = $"Entry point missing in armour.dll: {e.Message}";
                Debug.LogError($"[SARD] {InitializationError}");
                return false;
            }
            catch (Exception e)
            {
                IsInitialized = false;
                InitializationError = $"Initialization failed: {e.Message}";
                Debug.LogError($"[SARD] {InitializationError}");
                return false;
            }
        }

        /// <summary>
        /// Call on application quit to clean up SARD resources.
        /// </summary>
        public static void Finalize()
        {
            if (!IsInitialized) return;

            try
            {
                SardIntegration.SardFinalize();
                Debug.Log("[SARD] Anti-Cheat finalized");
            }
            catch (Exception e)
            {
                Debug.LogError($"[SARD] Finalization error: {e.Message}");
            }
        }

        public static void Relogin(string userId, string sessionId)
        {
            if (!IsInitialized)
            {
                Debug.LogWarning("[SARD] Cannot relogin - not initialized");
                return;
            }

            try
            {
                SardIntegration.SardRelogin(userId, sessionId);
                Debug.Log($"[SARD] Relogin completed for user: {userId}");
            }
            catch (Exception e)
            {
                Debug.LogError($"[SARD] Relogin failed: {e.Message}");
            }
        }

        public static string GetSecureSessionId()
        {
            if (!IsInitialized)
            {
                Debug.LogWarning("[SARD] Cannot get secure session - not initialized");
                return null;
            }

            try
            {
                return SardIntegration.GetSecureSessionId();
            }
            catch (Exception e)
            {
                Debug.LogError($"[SARD] GetSecureSessionId failed: {e.Message}");
                return null;
            }
        }
    }
}