using UnityEngine;
using UnityEngine.UIElements;

/// <summary>
/// Helper script to automatically set up the Map Location Names and Legend system.
/// Add this to a GameObject in MapScene2 to automatically configure all components.
/// </summary>
public class MapLocationSystemSetup : MonoBehaviour
{
    [Header("Auto Setup Configuration")]
    public bool setupOnStart = true;
    public bool findExistingComponents = true;

    [Header("Feature Generation Settings")]
    public bool enableAutoGeneration = true;
    public bool enableDebugMode = false;

    [Header("Legend Settings")]
    public bool legendStartVisible = true;
    public KeyCode legendToggleKey = KeyCode.L;

    [Header("Name Display Settings")]
    public bool showSettlements = true;
    public bool showForests = true;
    public bool showLakes = true;
    public bool showPlains = true;
    public bool showMountains = true;
    public bool showRivers = true;

    [Header("References (Optional - will auto-find if not set)")]
    public UIDocument mapUIDocument;

    private void Start()
    {
        if (setupOnStart)
        {
            SetupMapLocationSystem();
        }
    }

    [ContextMenu("Setup Map Location System")]
    public void SetupMapLocationSystem()
    {
        Debug.Log("🚀 Setting up Map Location Names and Legend System...");

        SetupGeographicFeatureManager();
        SetupMapLocationNameDisplay();
        SetupMapLegendUI();
        ConnectLegendToNameDisplay();
        SetupClickManager();

        Debug.Log("✅ Map Location System setup complete!");
    }

    [ContextMenu("Force Refresh All Components")]
    public void ForceRefreshAllComponents()
    {
        Debug.Log("🔄 Force refreshing all map location components...");

        // Force setup even for existing components
        bool originalFindExisting = findExistingComponents;
        findExistingComponents = false;

        SetupMapLocationSystem();

        findExistingComponents = originalFindExisting;

        // Force refresh names
        RefreshLocationNames();

        Debug.Log("✅ Force refresh complete!");
    }

    private void ConnectLegendToNameDisplay()
    {
        var legendUI = FindFirstObjectByType<MapSceneLegendUI>();
        if (legendUI != null)
        {
            legendUI.RefreshNameDisplayConnection();
            Debug.Log("🔗 Connected legend to name display");
        }
    }

    private void SetupGeographicFeatureManager()
    {
        var existing = FindFirstObjectByType<GeographicFeatureManager>();
        if (existing != null && findExistingComponents)
        {
            Debug.Log("📍 Found existing GeographicFeatureManager");
            ConfigureFeatureManager(existing);
            return;
        }

        // Create GeographicFeatureManager
        GameObject featureManagerGO = new GameObject("GeographicFeatureManager");
        var featureManager = featureManagerGO.AddComponent<GeographicFeatureManager>();
        ConfigureFeatureManager(featureManager);

        Debug.Log("📍 Created GeographicFeatureManager");
    }

    private void ConfigureFeatureManager(GeographicFeatureManager manager)
    {
        manager.autoGenerateFeatures = enableAutoGeneration;
        manager.debugMode = enableDebugMode;
    }

    private void SetupMapLocationNameDisplay()
    {
        var existing = FindFirstObjectByType<MapLocationNameDisplay>();
        if (existing != null && findExistingComponents)
        {
            Debug.Log("🏷️ Found existing MapLocationNameDisplay");
            ConfigureNameDisplay(existing);

            // Ensure existing component has proper UIDocument setup
            var existingUIDocument = existing.GetComponent<UIDocument>();
            if (existingUIDocument != null)
            {
                SetupUIDocumentForNameDisplay(existingUIDocument);
            }
            return;
        }

        // Create MapLocationNameDisplay
        GameObject nameDisplayGO = new GameObject("MapLocationNameDisplay");
        var nameDisplay = nameDisplayGO.AddComponent<MapLocationNameDisplay>();

        // Add UIDocument component for the name display
        var nameUIDocument = nameDisplayGO.AddComponent<UIDocument>();
        SetupUIDocumentForNameDisplay(nameUIDocument);

        ConfigureNameDisplay(nameDisplay);

        Debug.Log("🏷️ Created MapLocationNameDisplay");
    }

    private void SetupUIDocumentForNameDisplay(UIDocument uiDocument)
    {
        uiDocument.sortingOrder = 1; // Above map terrain, below UI panels

        // Set PanelSettings using fallback approach
        SetupPanelSettings(uiDocument, "Name Display");

        // Load the UXML template
        var nameDisplayUXML = Resources.Load<VisualTreeAsset>("UI/MapLocationNameDisplay");
        if (nameDisplayUXML != null)
        {
            uiDocument.visualTreeAsset = nameDisplayUXML;
            Debug.Log("✅ Loaded UXML template for Name Display");
        }
        else
        {
            Debug.LogWarning("Could not find MapLocationNameDisplay.uxml template in Resources/UI/");
        }
    }

    private void ConfigureNameDisplay(MapLocationNameDisplay display)
    {
        // Configure the display settings
        display.showSettlementNames = showSettlements;
        display.showForestNames = showForests;
        display.showLakeNames = showLakes;
        display.showPlainNames = showPlains;
        display.showMountainNames = showMountains;
        display.showRiverNames = showRivers;
    }

    private void SetupMapLegendUI()
    {
        var existing = FindFirstObjectByType<MapSceneLegendUI>();
        if (existing != null && findExistingComponents)
        {
            Debug.Log("🗺️ Found existing MapSceneLegendUI");
            ConfigureLegendUI(existing);

            // Ensure existing component has proper UIDocument setup
            var existingUIDocument = existing.GetComponent<UIDocument>();
            if (existingUIDocument != null)
            {
                SetupUIDocumentForLegend(existingUIDocument);
            }
            return;
        }

        // Create MapSceneLegendUI
        GameObject legendGO = new GameObject("MapSceneLegendUI");
        var uiDocument = legendGO.AddComponent<UIDocument>();
        var legendUI = legendGO.AddComponent<MapSceneLegendUI>();

        SetupUIDocumentForLegend(uiDocument);
        legendUI.uiDocument = uiDocument;
        ConfigureLegendUI(legendUI);

        Debug.Log("🗺️ Created MapSceneLegendUI");
    }

    private void SetupUIDocumentForLegend(UIDocument uiDocument)
    {
        // Set sorting order to be above name display but below modal UIs
        uiDocument.sortingOrder = 2; // Above name display (1), below other UI panels (3+)

        // Set PanelSettings using fallback approach
        SetupPanelSettings(uiDocument, "Legend UI");

        // Load the UXML template for the legend
        var legendUXML = Resources.Load<VisualTreeAsset>("UI/MapLegend");
        if (legendUXML != null)
        {
            uiDocument.visualTreeAsset = legendUXML;
            Debug.Log("✅ Loaded UXML template for Legend UI");
        }
        else
        {
            Debug.LogWarning("Could not find MapLegend.uxml template in Resources/UI/");
        }
    }

    private void ConfigureLegendUI(MapSceneLegendUI legendUI)
    {
        legendUI.startVisible = legendStartVisible;
        legendUI.toggleKey = legendToggleKey;
    }

    private void SetupClickManager()
    {
        // ClickManager is a singleton that creates itself, just ensure it exists
        var clickManager = ClickManager.Instance;
        if (clickManager != null)
        {
            Debug.Log("🖱️ ClickManager ready");
        }
        else
        {
            Debug.LogWarning("⚠️ ClickManager could not be initialized");
        }
    }

    private void SetupPanelSettings(UIDocument uiDocument, string componentName)
    {
        // Try multiple fallback approaches to find PanelSettings
        UnityEngine.UIElements.PanelSettings panelSettings = null;

        // 1. Try loading from Resources (original approach)
        panelSettings = Resources.Load<UnityEngine.UIElements.PanelSettings>("MainSettings");
        if (panelSettings != null)
        {
            uiDocument.panelSettings = panelSettings;
            Debug.Log($"✅ Set Panel Settings for {componentName} from Resources");
            return;
        }

        // 2. Try getting from TravelUI GameObject
        var travelUI = FindFirstObjectByType<TravelUI>();
        if (travelUI != null && travelUI.uiDocument != null && travelUI.uiDocument.panelSettings != null)
        {
            uiDocument.panelSettings = travelUI.uiDocument.panelSettings;
            Debug.Log($"✅ Set Panel Settings for {componentName} from TravelUI");
            return;
        }

        // 3. Try getting from any existing UIDocument with valid PanelSettings
        var allUIDocuments = FindObjectsByType<UIDocument>(FindObjectsSortMode.None);
        foreach (var existingUIDoc in allUIDocuments)
        {
            if (existingUIDoc.panelSettings != null)
            {
                uiDocument.panelSettings = existingUIDoc.panelSettings;
                Debug.Log($"✅ Set Panel Settings for {componentName} from existing UIDocument");
                return;
            }
        }

        Debug.LogWarning($"⚠️ Could not find any PanelSettings for {componentName}");
    }

    [ContextMenu("Find Map UI Document")]
    public void FindMapUIDocument()
    {
        var uiDocs = FindObjectsByType<UIDocument>(FindObjectsSortMode.None);
        foreach (var doc in uiDocs)
        {
            if (doc.rootVisualElement != null)
            {
                mapUIDocument = doc;
                Debug.Log($"📄 Found UIDocument on {doc.gameObject.name}");
                break;
            }
        }

        if (mapUIDocument == null)
        {
            Debug.LogWarning("⚠️ No suitable UIDocument found in scene");
        }
    }

    [ContextMenu("Regenerate All Features")]
    public void RegenerateAllFeatures()
    {
        var featureManager = FindFirstObjectByType<GeographicFeatureManager>();
        if (featureManager != null)
        {
            featureManager.RegenerateFeatures();
            Debug.Log("🔄 Regenerated geographic features");
        }
        else
        {
            Debug.LogWarning("⚠️ GeographicFeatureManager not found");
        }
    }

    [ContextMenu("Refresh Location Names")]
    public void RefreshLocationNames()
    {
        var nameDisplay = FindFirstObjectByType<MapLocationNameDisplay>();
        if (nameDisplay != null)
        {
            nameDisplay.RefreshLocationNames();
            Debug.Log("🔄 Refreshed location names");
        }
        else
        {
            Debug.LogWarning("⚠️ MapLocationNameDisplay not found");
        }
    }

    [ContextMenu("Test Click Blocking")]
    public void TestClickBlocking()
    {
        var clickManager = ClickManager.Instance;
        if (clickManager != null)
        {
            bool isBlocked = clickManager.IsClickBlocked(Input.mousePosition);
            Debug.Log($"🖱️ Click at mouse position {Input.mousePosition} is {(isBlocked ? "BLOCKED" : "ALLOWED")}");
            Debug.Log($"📊 Active blockers: {clickManager.GetRegisteredBlockersCount()}");
        }
        else
        {
            Debug.LogWarning("⚠️ ClickManager not available");
        }
    }
}