using UnityEditor;
using UnityEngine;
using AppleHills.Data.CardSystem;
using Data.CardSystem;
using Core;
using UI.CardSystem;
using UnityEngine.UI;
using System.Collections.Generic;

namespace Editor.CardSystem
{
    /// <summary>
    /// Editor window for testing the Card System in play mode.
    /// Provides buttons to test core functionalities like adding booster packs, opening packs, and generating cards.
    /// </summary>
    public class CardSystemTesterWindow : EditorWindow
    {
        // Test Settings
        private int boosterPacksToAdd = 3;
        private int cardsToGenerate = 10;
        
        // Auto-add toggles (always editable)
        private bool autoAddBoosters = false;
        private bool autoAddCards = false;
        
        // Scheduling for delayed auto-add after entering play mode
        private double scheduledAddTime = -1.0;
        private bool scheduledBoosters = false;
        private bool scheduledCards = false;
        
        // Debug Info
        private int currentBoosterCount;
        private int totalCardsInCollection;
        private string lastActionMessage = "";
        
        // UI State
        private Vector2 scrollPosition;
        
        [MenuItem("AppleHills/Cards/Card System Tester")]
        public static void ShowWindow()
        {
            var window = GetWindow<CardSystemTesterWindow>(false, "Card System Tester", true);
            window.minSize = new Vector2(400, 500);
        }
        
        private void OnEnable()
        {
            EditorApplication.playModeStateChanged += OnPlayModeStateChanged;
            EditorApplication.update += EditorUpdate;
        }
        
        private void OnDisable()
        {
            EditorApplication.playModeStateChanged -= OnPlayModeStateChanged;
            EditorApplication.update -= EditorUpdate;
        }
        
        private void OnPlayModeStateChanged(PlayModeStateChange state)
        {
            if (state == PlayModeStateChange.EnteredPlayMode)
            {
                RefreshDebugInfo();
                
                // Schedule auto-adds after 1 second if toggles are enabled
                if (autoAddBoosters || autoAddCards)
                {
                    scheduledAddTime = EditorApplication.timeSinceStartup + 1.0;
                    scheduledBoosters = autoAddBoosters;
                    scheduledCards = autoAddCards;
                }
            }
            else if (state == PlayModeStateChange.ExitingPlayMode)
            {
                lastActionMessage = "";
                // clear any scheduled actions when leaving play mode
                scheduledAddTime = -1.0;
                scheduledBoosters = false;
                scheduledCards = false;
            }
            
            Repaint();
        }
        
        // Polling update used to execute scheduled actions after a delay
        private void EditorUpdate()
        {
            if (scheduledAddTime > 0 && EditorApplication.timeSinceStartup >= scheduledAddTime)
            {
                // perform scheduled actions
                if (scheduledBoosters)
                {
                    AddBoosterPacks();
                }
                
                if (scheduledCards)
                {
                    GenerateRandomCards();
                }
                
                // clear schedule
                scheduledAddTime = -1.0;
                scheduledBoosters = false;
                scheduledCards = false;
                
                Repaint();
            }
        }
        
        private void OnGUI()
        {
            scrollPosition = EditorGUILayout.BeginScrollView(scrollPosition);
            
            // Header
            EditorGUILayout.Space(10);
            EditorGUILayout.LabelField("Card System Tester", EditorStyles.boldLabel);
            EditorGUILayout.HelpBox("This tool allows you to test the card system in play mode. " +
                                   "Enter play mode to enable the testing functions.", MessageType.Info);
            
            EditorGUILayout.Space(10);
            
            // Test Settings Section
            DrawTestSettings();
            
            EditorGUILayout.Space(10);
            
            // Debug Info Section
            DrawDebugInfo();
            
            EditorGUILayout.Space(10);
            
            // Test Actions Section
            DrawTestActions();
            
            EditorGUILayout.EndScrollView();
        }
        
        private void DrawTestSettings()
        {
            EditorGUILayout.LabelField("Test Settings", EditorStyles.boldLabel);
            
            // Booster pack slider with always-editable auto-add toggle
            EditorGUILayout.BeginHorizontal();
            EditorGUI.BeginDisabledGroup(!Application.isPlaying);
            boosterPacksToAdd = EditorGUILayout.IntSlider("Booster Packs to Add", boosterPacksToAdd, 1, 10);
            EditorGUI.EndDisabledGroup();
            GUILayout.FlexibleSpace();
            autoAddBoosters = EditorGUILayout.ToggleLeft("Auto Add", autoAddBoosters, GUILayout.Width(110));
            EditorGUILayout.EndHorizontal();
            
            // Card generation slider with always-editable auto-add toggle
            EditorGUILayout.BeginHorizontal();
            EditorGUI.BeginDisabledGroup(!Application.isPlaying);
            cardsToGenerate = EditorGUILayout.IntSlider("Cards to Generate", cardsToGenerate, 1, 100);
            EditorGUI.EndDisabledGroup();
            GUILayout.FlexibleSpace();
            autoAddCards = EditorGUILayout.ToggleLeft("Auto Add", autoAddCards, GUILayout.Width(110));
            EditorGUILayout.EndHorizontal();
        }
        
        private void DrawDebugInfo()
        {
            EditorGUILayout.LabelField("Debug Info", EditorStyles.boldLabel);
            
            if (Application.isPlaying)
            {
                EditorGUI.BeginDisabledGroup(true);
                EditorGUILayout.IntField("Current Booster Count", currentBoosterCount);
                EditorGUILayout.IntField("Total Cards in Collection", totalCardsInCollection);
                EditorGUI.EndDisabledGroup();
                
                if (!string.IsNullOrEmpty(lastActionMessage))
                {
                    EditorGUILayout.Space(5);
                    EditorGUILayout.HelpBox(lastActionMessage, MessageType.None);
                }
                
                EditorGUILayout.Space(5);
                if (GUILayout.Button("Refresh Debug Info"))
                {
                    RefreshDebugInfo();
                }
            }
            else
            {
                EditorGUILayout.HelpBox("Debug info available in play mode.", MessageType.Warning);
            }
        }
        
        private void DrawTestActions()
        {
            EditorGUILayout.LabelField("Test Actions", EditorStyles.boldLabel);
            
            if (!Application.isPlaying)
            {
                EditorGUILayout.HelpBox("Enter Play Mode to use these testing functions.", MessageType.Warning);
                return;
            }
            
            // Booster Pack Actions
            EditorGUILayout.Space(5);
            EditorGUILayout.LabelField("Booster Pack Actions", EditorStyles.miniBoldLabel);
            
            if (GUILayout.Button("Add Booster Packs", GUILayout.Height(30)))
            {
                AddBoosterPacks();
            }
            
            // Card Generation Actions
            EditorGUILayout.Space(10);
            EditorGUILayout.LabelField("Card Generation Actions", EditorStyles.miniBoldLabel);
            
            if (GUILayout.Button("Generate Random Cards", GUILayout.Height(30)))
            {
                GenerateRandomCards();
            }
            
            EditorGUILayout.Space(5);
            
            if (GUILayout.Button("Populate Pending (6 Unique Cards)", GUILayout.Height(30)))
            {
                PopulatePendingCards();
            }
            
            EditorGUILayout.Space(5);
            
            // Danger Zone
            EditorGUILayout.Space(10);
            EditorGUILayout.LabelField("Danger Zone", EditorStyles.miniBoldLabel);
            
            GUI.backgroundColor = new Color(1f, 0.6f, 0.6f);
            if (GUILayout.Button("Clear All Cards", GUILayout.Height(30)))
            {
                if (EditorUtility.DisplayDialog("Clear All Cards",
                    "Are you sure you want to clear all cards from the inventory? This cannot be undone in this play session.",
                    "Clear All", "Cancel"))
                {
                    ClearAllCards();
                }
            }
            GUI.backgroundColor = Color.white;
        }
        
        // Refresh the debug information
        private void RefreshDebugInfo()
        {
            if (!Application.isPlaying)
                return;
            
            if (CardSystemManager.Instance != null)
            {
                currentBoosterCount = CardSystemManager.Instance.GetBoosterPackCount();
                totalCardsInCollection = CardSystemManager.Instance.GetCardInventory().GetAllCards().Count;
                Repaint();
            }
        }
        
        // Test Action Methods
        
        private void AddBoosterPacks()
        {
            if (CardSystemManager.Instance != null)
            {
                CardSystemManager.Instance.AddBoosterPack(boosterPacksToAdd);
                lastActionMessage = $"Added {boosterPacksToAdd} booster pack(s)";
                Logging.Debug($"[CardSystemTesterWindow] {lastActionMessage}");
                RefreshDebugInfo();
            }
            else
            {
                lastActionMessage = "Error: CardSystemManager instance not found!";
                Debug.LogError("[CardSystemTesterWindow] " + lastActionMessage);
                Repaint();
            }
        }
        
        private void GenerateRandomCards()
        {
            if (CardSystemManager.Instance != null)
            {
                int cardsAdded = 0;
                List<CardDefinition> allDefinitions = CardSystemManager.Instance.GetAllCardDefinitions();
                
                if (allDefinitions.Count == 0)
                {
                    lastActionMessage = "Error: No card definitions available";
                    Logging.Warning($"[CardSystemTesterWindow] {lastActionMessage}");
                    Repaint();
                    return;
                }
                
                for (int i = 0; i < cardsToGenerate; i++)
                {
                    // Get a random card definition
                    CardDefinition randomDef = allDefinitions[Random.Range(0, allDefinitions.Count)];
                    
                    // Create a card data instance and add it to inventory
                    CardData newCard = randomDef.CreateCardData();
                    CardSystemManager.Instance.GetCardInventory().AddCard(newCard);
                    cardsAdded++;
                }
                
                lastActionMessage = $"Generated {cardsAdded} random cards";
                Logging.Debug($"[CardSystemTesterWindow] {lastActionMessage}");
                RefreshDebugInfo();
            }
            else
            {
                lastActionMessage = "Error: CardSystemManager instance not found!";
                Debug.LogError("[CardSystemTesterWindow] " + lastActionMessage);
                Repaint();
            }
        }
        
        private void PopulatePendingCards()
        {
            if (CardSystemManager.Instance != null)
            {
                List<CardDefinition> allDefinitions = CardSystemManager.Instance.GetAllCardDefinitions();
                
                if (allDefinitions.Count == 0)
                {
                    lastActionMessage = "Error: No card definitions available";
                    Logging.Warning($"[CardSystemTesterWindow] {lastActionMessage}");
                    Repaint();
                    return;
                }
                
                // Ensure we have enough definitions to pick 6 unique cards
                int cardsToAdd = Mathf.Min(6, allDefinitions.Count);
                
                // Shuffle definitions to get random unique cards
                List<CardDefinition> shuffledDefs = new List<CardDefinition>(allDefinitions);
                for (int i = 0; i < shuffledDefs.Count; i++)
                {
                    int randomIndex = Random.Range(i, shuffledDefs.Count);
                    (shuffledDefs[i], shuffledDefs[randomIndex]) = (shuffledDefs[randomIndex], shuffledDefs[i]);
                }
                
                // Add first 6 unique cards to pending
                // AddCardToInventoryDelayed automatically routes NEW cards to pending queue
                int cardsAdded = 0;
                for (int i = 0; i < cardsToAdd; i++)
                {
                    CardData newCard = shuffledDefs[i].CreateCardData();
                    CardSystemManager.Instance.AddCardToInventoryDelayed(newCard);
                    cardsAdded++;
                }
                
                lastActionMessage = $"Added {cardsAdded} unique cards to pending reveal queue";
                Logging.Debug($"[CardSystemTesterWindow] {lastActionMessage}");
                RefreshDebugInfo();
            }
            else
            {
                lastActionMessage = "Error: CardSystemManager instance not found!";
                Debug.LogError("[CardSystemTesterWindow] " + lastActionMessage);
                Repaint();
            }
        }
        
        private void ClearAllCards()
        {
            if (CardSystemManager.Instance != null)
            {
                int count = CardSystemManager.Instance.GetCardInventory().GetAllCards().Count;
                CardSystemManager.Instance.GetCardInventory().ClearAllCards();
                lastActionMessage = $"Cleared {count} cards from inventory";
                Logging.Debug($"[CardSystemTesterWindow] {lastActionMessage}");
                RefreshDebugInfo();
            }
            else
            {
                lastActionMessage = "Error: CardSystemManager instance not found!";
                Debug.LogError("[CardSystemTesterWindow] " + lastActionMessage);
                Repaint();
            }
        }
    }
}