using System;
using System.Collections;
using System.Collections.Generic;
using Core;
using Core.Lifecycle;
using Interactions;
using UnityEngine;
using PuzzleS;
using UnityEngine.Audio;

namespace Dialogue
{
    [AddComponentMenu("AppleHills/Dialogue/Dialogue Component")]
    [RequireComponent(typeof(AppleAudioSource))]
    public class DialogueComponent : ManagedBehaviour
    {
        [SerializeField] private RuntimeDialogueGraph dialogueGraph;
        
        private RuntimeDialogueNode currentNode;
        private int currentLineIndex;
        private bool initialized = false;
        private SpeechBubble speechBubble;
        private AppleAudioSource appleAudioSource;
        
        // Flag to track when a condition has been met but dialogue hasn't advanced yet
        private bool _conditionSatisfiedPendingAdvance = false;
        
        // Track the current slot state for WaitOnSlot nodes
        private ItemSlotState _currentSlotState = ItemSlotState.None;
        private PickupItemData _lastSlottedItem;
        
        // Properties
        public bool IsActive { get; private set; }
        public bool IsCompleted { get; private set; }
        public string CurrentSpeakerName => dialogueGraph?.speakerName;
        
        
        public override int ManagedAwakePriority => 150; // Dialogue systems
        
        protected override void OnManagedAwake()
        {
            // Get required components
            appleAudioSource = GetComponent<AppleAudioSource>();
            speechBubble = GetComponentInChildren<SpeechBubble>();

            if (speechBubble == null)
            {
                Debug.LogError("SpeechBubble component is missing on Dialogue Component");
            }
            
            var interactable = GetComponent<InteractableBase>();
            if (interactable != null)
            {
                interactable.characterArrived.AddListener(OnCharacterArrived);
            }

            // Update bubble visibility based on whether we have lines
            if (speechBubble != null)
            {
                speechBubble.UpdatePromptVisibility(HasAnyLines());
            }
            
            // Register for global events
            PuzzleManager.Instance.OnStepCompleted += OnAnyPuzzleStepCompleted;
            ItemManager.Instance.OnItemPickedUp += OnAnyItemPickedUp;
            ItemManager.Instance.OnCorrectItemSlotted += OnAnyItemSlotted;
            ItemManager.Instance.OnIncorrectItemSlotted += OnAnyIncorrectItemSlotted;
            ItemManager.Instance.OnForbiddenItemSlotted += OnAnyForbiddenItemSlotted;
            ItemManager.Instance.OnItemSlotCleared += OnAnyItemSlotCleared;
            ItemManager.Instance.OnItemsCombined += OnAnyItemsCombined;
        }

        private void OnCharacterArrived()
        {
            if (speechBubble == null || !HasAnyLines()) return;
            
            // Advance the dialogue state to move to the next content
            AdvanceDialogueState();
            
            // Check if we have DialogueContent available (prioritizing the new content system)
            DialogueContent content = GetCurrentDialogueContent();
            
            if (content != null)
            {
                // Display the content with the method that handles both text and images
                // and pass whether there are more lines available for prompt display
                speechBubble.DisplayDialogueContent(content, HasAnyLines());
                
                // Play audio if available
                PlayDialogueAudio(content.Audio);
                
                // Log the content type for debugging
                Logging.Debug($"Displaying content type: {content.ContentType} - {(content.ContentType == DialogueContentType.Text ? content.Text : content.Image?.name)}");
            }
            else
            {
                // Fall back to legacy text-only method if no DialogueContent is available
                string line = GetCurrentDialogueLine();
                speechBubble.DisplayDialogueLine(line, HasAnyLines());
                
                // Log for debugging
                Logging.Debug($"Displaying legacy text: {line}");
            }
        }
        
        /// <summary>
        /// Play the audio clip for the current dialogue content
        /// </summary>
        /// <param name="clip">Audio clip to play</param>
        private void PlayDialogueAudio(AudioResource clip)
        {
            // Stop any currently playing audio
            if (appleAudioSource.audioSource.isPlaying)
            {
                appleAudioSource.Stop();
            }
            
            // Play the new clip if it exists
            if (clip != null)
            {
                appleAudioSource.audioSource.resource = clip;
                appleAudioSource.Play(1);
                Logging.Debug($"Playing dialogue audio: {clip.name}");
            }
        }
        
        /// <summary>
        /// Get the current dialogue content (text or image)
        /// </summary>
        /// <returns>DialogueContent or null if only legacy text content is available</returns>
        private DialogueContent GetCurrentDialogueContent()
        {
            // Initialize if needed
            if (!initialized)
            {
                StartDialogue();
            }
            
            if (!IsActive || IsCompleted || currentNode == null)
                return null;
            
            // Check if we have DialogueContent available
            if (currentNode.dialogueContent != null && currentNode.dialogueContent.Count > 0)
            {
                // For WaitOnSlot nodes, use the appropriate content based on slot state
                if (currentNode.nodeType == RuntimeDialogueNodeType.WaitOnSlot)
                {
                    // Choose the appropriate content collection based on the current slot state
                    List<DialogueContent> contentForState = currentNode.dialogueContent; // Default content
                    
                    switch (_currentSlotState)
                    {
                        case ItemSlotState.Incorrect:
                            // Use incorrect item content if available
                            if (currentNode.incorrectItemContent != null && currentNode.incorrectItemContent.Count > 0)
                                contentForState = currentNode.incorrectItemContent;
                            break;
                            
                        case ItemSlotState.Forbidden:
                            // Use forbidden item content if available
                            if (currentNode.forbiddenItemContent != null && currentNode.forbiddenItemContent.Count > 0)
                                contentForState = currentNode.forbiddenItemContent;
                            break;
                    }
                    
                    // If we have content for this state, return the current one
                    if (contentForState != null && contentForState.Count > 0)
                    {
                        // Make sure index is within bounds
                        int index = Mathf.Clamp(currentLineIndex, 0, contentForState.Count - 1);
                        return contentForState[index];
                    }
                    return null; // No content for this slot state
                }
                else
                {
                    // For other node types, use the default dialogueContent
                    if (currentLineIndex >= 0 && currentLineIndex < currentNode.dialogueContent.Count)
                    {
                        return currentNode.dialogueContent[currentLineIndex];
                    }
                }
            }
            
            // No DialogueContent available, will fall back to legacy text handling
            return null;
        }
        
        private void OnDestroy()
        {
            // Unregister from events
            if (PuzzleManager.Instance != null)
                PuzzleManager.Instance.OnStepCompleted -= OnAnyPuzzleStepCompleted;
                
            if (ItemManager.Instance != null)
            {
                ItemManager.Instance.OnItemPickedUp -= OnAnyItemPickedUp;
                ItemManager.Instance.OnCorrectItemSlotted -= OnAnyItemSlotted;
                ItemManager.Instance.OnIncorrectItemSlotted -= OnAnyIncorrectItemSlotted;
                ItemManager.Instance.OnForbiddenItemSlotted -= OnAnyForbiddenItemSlotted;
                ItemManager.Instance.OnItemSlotCleared -= OnAnyItemSlotCleared;
                ItemManager.Instance.OnItemsCombined -= OnAnyItemsCombined;
            }
        }
        
        /// <summary>
        /// Start the dialogue from the beginning
        /// </summary>
        public void StartDialogue()
        {
            if (dialogueGraph == null)
            {
                Debug.LogError("DialogueComponent: No dialogue graph assigned!");
                return;
            }
            
            // Reset state
            IsActive = true;
            IsCompleted = false;
            currentLineIndex = 0;
            initialized = true;
            
            // Set to entry node
            currentNode = dialogueGraph.GetNodeByID(dialogueGraph.entryNodeID);
            
            // Process the node
            ProcessCurrentNode();
            
            // Update bubble visibility based on whether we have lines
            if (speechBubble != null)
            {
                speechBubble.UpdatePromptVisibility(HasAnyLines());
            }
        }
        
        /// <summary>
        /// Get the current dialogue line and advance to the next line or node if appropriate
        /// Each call represents one interaction with the NPC
        /// </summary>
        public string GetCurrentDialogueLine()
        {
            // Initialize if needed
            if (!initialized)
            {
                StartDialogue();
            }
            
            if (!IsActive || IsCompleted || currentNode == null)
                return string.Empty;
            
            // For WaitOnSlot nodes, use the appropriate line type based on slot state
            if (currentNode.nodeType == RuntimeDialogueNodeType.WaitOnSlot)
            {
                // Choose the appropriate line collection based on the current slot state
                List<string> linesForState = currentNode.dialogueLines; // Default lines
                
                switch (_currentSlotState)
                {
                    case ItemSlotState.Incorrect:
                        // Use incorrect item lines if available, otherwise fall back to default lines
                        if (currentNode.incorrectItemLines != null && currentNode.incorrectItemLines.Count > 0)
                            linesForState = currentNode.incorrectItemLines;
                        break;
                        
                    case ItemSlotState.Forbidden:
                        // Use forbidden item lines if available, otherwise fall back to default lines
                        if (currentNode.forbiddenItemLines != null && currentNode.forbiddenItemLines.Count > 0)
                            linesForState = currentNode.forbiddenItemLines;
                        break;
                        
                    // For None or Correct state, use the default lines
                    default:
                        linesForState = currentNode.dialogueLines;
                        break;
                }
                
                // If we have lines for this state, return the current one
                if (linesForState != null && linesForState.Count > 0)
                {
                    // Make sure index is within bounds
                    int index = Mathf.Clamp(currentLineIndex, 0, linesForState.Count - 1);
                    return linesForState[index];
                }
            }
            
            // For other node types, use the default dialogueLines
            if (currentNode.dialogueLines == null || currentNode.dialogueLines.Count == 0)
                return string.Empty;
                
            // Get current line
            string currentLine = string.Empty;
            if (currentLineIndex >= 0 && currentLineIndex < currentNode.dialogueLines.Count)
            {
                currentLine = currentNode.dialogueLines[currentLineIndex];
            }
            
            return currentLine;
        }
        
        /// <summary>
        /// Advance dialogue state for the next interaction
        /// </summary>
        private void AdvanceDialogueState()
        {
            if (!IsActive || IsCompleted || currentNode == null)
                return;

            // If the condition was satisfied earlier, move to the next node immediately
            if (_conditionSatisfiedPendingAdvance)
            {
                _conditionSatisfiedPendingAdvance = false; // Reset flag
                MoveToNextNode();
                return;
            }

            // First check if we have any dialogueContent to process
            bool hasDialogueContent = currentNode.dialogueContent != null && currentNode.dialogueContent.Count > 0;
            
            if (hasDialogueContent)
            {
                // If we have dialogueContent and there are more entries, advance to the next one
                if (currentLineIndex < currentNode.dialogueContent.Count - 1)
                {
                    currentLineIndex++;
                    return;
                }

                // If we should loop through content, reset the index
                if (currentNode.loopThroughLines && currentNode.dialogueContent.Count > 0)
                {
                    currentLineIndex = 0;
                    return;
                }
            }
            else
            {
                // Fall back to legacy dialogueLines
                // If we have more lines in the current node, advance to the next line
                if (currentLineIndex < currentNode.dialogueLines.Count - 1)
                {
                    currentLineIndex++;
                    return;
                }

                // If we should loop through lines, reset the index
                if (currentNode.loopThroughLines && currentNode.dialogueLines.Count > 0)
                {
                    currentLineIndex = 0;
                    return;
                }
            }

            // If we're at a node that doesn't have a next node, we're done
            if (string.IsNullOrEmpty(currentNode.nextNodeID))
            {
                IsActive = false;
                IsCompleted = true;
                return;
            }

            // Move to the next node only if no conditions to wait for
            if (!IsWaitingForCondition())
            {
                MoveToNextNode();
            }
        }
        
        private void MoveToNextNode()
        {
            Logging.Debug("MoveToNextNode");
            
            // If there's no next node, complete the dialogue
            if (string.IsNullOrEmpty(currentNode.nextNodeID))
            {
                IsActive = false;
                IsCompleted = true;
                return;
            }
            
            // Move to the next node
            currentNode = dialogueGraph.GetNodeByID(currentNode.nextNodeID);
            currentLineIndex = 0;
            
            // Process the new node
            ProcessCurrentNode();
        }
        
        private void ProcessCurrentNode()
        {
            if (currentNode == null)
            {
                Debug.LogError("DialogueComponent: Current node is null!");
                return;
            }
            
            // Handle different node types
            switch (currentNode.nodeType)
            {
                case RuntimeDialogueNodeType.Dialogue:
                    // Regular dialogue node, nothing special to do
                    break;
                    
                case RuntimeDialogueNodeType.WaitOnPuzzleStep:
                    // Check if the puzzle step is already completed
                    if (IsPuzzleStepComplete(currentNode.puzzleStepID))
                    {
                        // If it's already complete, move past this node automatically
                        MoveToNextNode();
                    }
                    break;
                    
                case RuntimeDialogueNodeType.WaitOnPickup:
                    // Check if the item is already picked up
                    if (IsItemPickedUp(currentNode.pickupItemID))
                    {
                        // If it's already picked up, move past this node automatically
                        MoveToNextNode();
                    }
                    break;
                    
                case RuntimeDialogueNodeType.WaitOnSlot:
                    // Check if the item is already slotted
                    if (IsItemSlotted(currentNode.slotItemID))
                    {
                        // If it's already slotted, move past this node automatically
                        MoveToNextNode();
                    }
                    break;
                    
                case RuntimeDialogueNodeType.WaitOnCombination:
                    // Check if the result item is already created through combination
                    if (IsResultItemCreated(currentNode.combinationResultItemID))
                    {
                        // If it's already created, move past this node automatically
                        MoveToNextNode();
                    }
                    break;
                    
                case RuntimeDialogueNodeType.End:
                    // End node, complete the dialogue
                    IsActive = false;
                    IsCompleted = true;
                    break;
                    
                default:
                    Debug.LogError($"DialogueComponent: Unknown node type {currentNode.nodeType}");
                    break;
            }
        }
        
        // Global event handlers
        private void OnAnyPuzzleStepCompleted(PuzzleStepSO step)
        {
            // Initialize if needed
            if (!initialized)
            {
                StartDialogue();
            }
            
            // Only react if we're active and waiting on a puzzle step
            if (!IsActive || IsCompleted || currentNode == null || 
                currentNode.nodeType != RuntimeDialogueNodeType.WaitOnPuzzleStep)
                return;
                
            // Check if this is the step we're waiting for
            if (step.stepId == currentNode.puzzleStepID)
            {
                // Set the flag that condition is satisfied
                _conditionSatisfiedPendingAdvance = true;
                
                UpdateDialogueVisibilityOnItemEvent();
            }
        }
        
        private void OnAnyItemPickedUp(PickupItemData item)
        {
            // Initialize if needed
            if (!initialized)
            {
                StartDialogue();
            }
            
            // Only react if we're active and waiting on an item pickup
            if (!IsActive || IsCompleted || currentNode == null || 
                currentNode.nodeType != RuntimeDialogueNodeType.WaitOnPickup)
                return;
                
            // Check if this is the item we're waiting for
            if (item.itemId == currentNode.pickupItemID)
            {
                // Set the flag that condition is satisfied
                _conditionSatisfiedPendingAdvance = true;
                
                UpdateDialogueVisibilityOnItemEvent();
            }
        }
        
        private void OnAnyItemSlotted(PickupItemData slotDefinition, PickupItemData slottedItem)
        {
            Logging.Debug("[DialogueComponent] OnAnyItemSlotted");
            
            // Initialize if needed
            if (!initialized)
            {
                StartDialogue();
            }
            
            // Only react if we're active and waiting on a slot
            if (!IsActive || IsCompleted || currentNode == null || 
                currentNode.nodeType != RuntimeDialogueNodeType.WaitOnSlot)
                return;
                
            // Check if this is the slot we're waiting for
            if (slotDefinition.itemId == currentNode.slotItemID)
            {
                // Set the flag that condition is satisfied
                _conditionSatisfiedPendingAdvance = true;
                
                UpdateDialogueVisibilityOnItemEvent();
            }
        }
        
        private void OnAnyItemsCombined(PickupItemData itemA, PickupItemData itemB, PickupItemData resultItem)
        {
            // Initialize if needed
            if (!initialized)
            {
                StartDialogue();
            }
            
            // Only react if we're active and waiting on a combination
            if (!IsActive || IsCompleted || currentNode == null || 
                currentNode.nodeType != RuntimeDialogueNodeType.WaitOnCombination)
                return;
                
            // Check if this is the result item we're waiting for
            if (resultItem.itemId == currentNode.combinationResultItemID)
            {
                // Set the flag that condition is satisfied
                _conditionSatisfiedPendingAdvance = true;
                
                UpdateDialogueVisibilityOnItemEvent();
            }
        }
        
        private void OnAnyIncorrectItemSlotted(PickupItemData slotDefinition, PickupItemData slottedItem)
        {
            // Initialize if needed
            if (!initialized)
            {
                StartDialogue();
            }
            
            // Update the slot state for displaying the correct dialogue lines
            if (!IsActive || IsCompleted || currentNode == null)
                return;
                
            // Only update state if we're actively waiting on this slot
            if (currentNode.nodeType == RuntimeDialogueNodeType.WaitOnSlot && 
                slotDefinition.itemId == currentNode.slotItemID)
            {
                _currentSlotState = ItemSlotState.Incorrect;
                _lastSlottedItem = slottedItem;
                
                UpdateDialogueVisibilityOnItemEvent();
            }
        }
        
        private void OnAnyForbiddenItemSlotted(PickupItemData slotDefinition, PickupItemData slottedItem)
        {
            // Initialize if needed
            if (!initialized)
            {
                StartDialogue();
            }
            
            // Update the slot state for displaying the correct dialogue lines
            if (!IsActive || IsCompleted || currentNode == null)
                return;
                
            // Only update state if we're actively waiting on this slot
            if (currentNode.nodeType == RuntimeDialogueNodeType.WaitOnSlot && 
                slotDefinition.itemId == currentNode.slotItemID)
            {
                _currentSlotState = ItemSlotState.Forbidden;
                _lastSlottedItem = slottedItem;
                
                UpdateDialogueVisibilityOnItemEvent();
            }
        }
        
        private void OnAnyItemSlotCleared(PickupItemData removedItem)
        {
            // Initialize if needed
            if (!initialized)
            {
                StartDialogue();
            }
            
            // Update the slot state when an item is removed
            if (!IsActive || IsCompleted || currentNode == null)
                return;
                
            // Reset slot state if we were tracking this item
            if (_lastSlottedItem != null && _lastSlottedItem == removedItem)
            {
                _currentSlotState = ItemSlotState.None;
                _lastSlottedItem = null;

                UpdateDialogueVisibilityOnItemEvent();
            }
        }
        
        private void UpdateDialogueVisibilityOnItemEvent()
        {
            // If auto-play is enabled, immediately display dialogue
            if (currentNode.shouldAutoPlay)
            {
                OnCharacterArrived();
            }
            else
            {
                // Manual mode: just update bubble visibility to show interaction prompt
                if (speechBubble != null)
                {
                    speechBubble.UpdatePromptVisibility(HasAnyLines());
                }
            }
        }
        
        // Helper methods
        private bool IsWaitingForCondition()
        {
            if (currentNode == null) return false;
            
            switch (currentNode.nodeType)
            {
                case RuntimeDialogueNodeType.WaitOnPuzzleStep:
                    return !IsPuzzleStepComplete(currentNode.puzzleStepID);
                case RuntimeDialogueNodeType.WaitOnPickup:
                    return !IsItemPickedUp(currentNode.pickupItemID);
                case RuntimeDialogueNodeType.WaitOnSlot:
                    return !IsItemSlotted(currentNode.slotItemID);
                case RuntimeDialogueNodeType.WaitOnCombination:
                    return !IsResultItemCreated(currentNode.combinationResultItemID);
                default:
                    return false;
            }
        }
        
        private bool IsPuzzleStepComplete(string stepID)
        {
            return PuzzleManager.Instance != null && 
                   PuzzleManager.Instance.IsPuzzleStepCompleted(stepID);
        }
        
        private bool IsItemPickedUp(string itemID)
        {
            if (ItemManager.Instance == null) return false;
            
            // Check all pickups for the given ID
            foreach (var pickup in ItemManager.Instance.Pickups)
            {
                if (pickup.IsPickedUp && pickup.itemData != null && 
                    pickup.itemData.itemId == itemID)
                {
                    return true;
                }
            }
            return false;
        }
        
        private bool IsItemSlotted(string slotID)
        {
            if (ItemManager.Instance == null) return false;
            
            // Check if any slot with this ID has the correct item
            foreach (var slot in ItemManager.Instance.ItemSlots)
            {
                if (slot.itemData != null && slot.itemData.itemId == slotID && 
                    slot.CurrentSlottedState == ItemSlotState.Correct)
                {
                    return true;
                }
            }
            return false;
        }
        
        private bool IsResultItemCreated(string resultItemId)
        {
            if (ItemManager.Instance == null) return false;
            
            // Use the ItemManager's tracking of items created through combination
            return ItemManager.Instance.WasItemCreatedThroughCombination(resultItemId);
        }
        
        /// <summary>
        /// Checks if the dialogue component has any lines available to serve
        /// </summary>
        /// <returns>True if there are lines available, false otherwise</returns>
        public bool HasAnyLines()
        {
            if (!initialized)
            {
                // If not initialized yet but has a dialogue graph, it will have lines when initialized
                return dialogueGraph != null;
            }
            
            // No lines if dialogue is not active or is completed
            if (!IsActive || IsCompleted || currentNode == null)
                return false;
                
            // Special case: if condition has been satisfied but not yet advanced, we should show lines
            if (_conditionSatisfiedPendingAdvance && !string.IsNullOrEmpty(currentNode.nextNodeID))
            {
                // Check if the next node would have lines or content
                RuntimeDialogueNode nextNode = dialogueGraph.GetNodeByID(currentNode.nextNodeID);
                return nextNode != null && 
                       ((nextNode.dialogueLines != null && nextNode.dialogueLines.Count > 0) || 
                        (nextNode.dialogueContent != null && nextNode.dialogueContent.Count > 0) || 
                        nextNode.nodeType != RuntimeDialogueNodeType.End);
            }
                
            // For WaitOnSlot nodes, check for lines or content based on current slot state
            if (currentNode.nodeType == RuntimeDialogueNodeType.WaitOnSlot)
            {
                // First check for DialogueContent
                if (currentNode.dialogueContent != null && currentNode.dialogueContent.Count > 0)
                {
                    // Choose the appropriate content collection based on the current slot state
                    List<DialogueContent> contentForState = currentNode.dialogueContent;
                    
                    switch (_currentSlotState)
                    {
                        case ItemSlotState.Incorrect:
                            if (currentNode.incorrectItemContent != null && currentNode.incorrectItemContent.Count > 0)
                                contentForState = currentNode.incorrectItemContent;
                            break;
                            
                        case ItemSlotState.Forbidden:
                            if (currentNode.forbiddenItemContent != null && currentNode.forbiddenItemContent.Count > 0)
                                contentForState = currentNode.forbiddenItemContent;
                            break;
                    }
                    
                    if (contentForState.Count > 0)
                    {
                        if (currentLineIndex < contentForState.Count - 1 || currentNode.loopThroughLines)
                        {
                            return true;
                        }
                    }
                }
                
                // Fall back to legacy text lines
                List<string> linesForState = currentNode.dialogueLines; 
                
                switch (_currentSlotState)
                {
                    case ItemSlotState.Incorrect:
                        if (currentNode.incorrectItemLines != null && currentNode.incorrectItemLines.Count > 0)
                            linesForState = currentNode.incorrectItemLines;
                        break;
                        
                    case ItemSlotState.Forbidden:
                        if (currentNode.forbiddenItemLines != null && currentNode.forbiddenItemLines.Count > 0)
                            linesForState = currentNode.forbiddenItemLines;
                        break;
                }
                
                if (linesForState != null && linesForState.Count > 0)
                {
                    if (currentLineIndex < linesForState.Count - 1 || currentNode.loopThroughLines)
                    {
                        return true;
                    }
                }
            }
            // For other node types, check for DialogueContent first, then fall back to legacy text
            else 
            {
                // Check for DialogueContent
                if (currentNode.dialogueContent != null && currentNode.dialogueContent.Count > 0)
                {
                    if (currentLineIndex < currentNode.dialogueContent.Count - 1 || currentNode.loopThroughLines)
                    {
                        return true;
                    }
                    
                    // If we're at the end of content but not waiting for a condition and have a next node
                    if (!IsWaitingForCondition() && !string.IsNullOrEmpty(currentNode.nextNodeID))
                    {
                        RuntimeDialogueNode nextNode = dialogueGraph.GetNodeByID(currentNode.nextNodeID);
                        return nextNode != null && 
                               ((nextNode.dialogueContent != null && nextNode.dialogueContent.Count > 0) || 
                                (nextNode.dialogueLines != null && nextNode.dialogueLines.Count > 0) || 
                                nextNode.nodeType != RuntimeDialogueNodeType.End);
                    }
                }
                
                // Fall back to legacy text lines
                if (currentNode.dialogueLines != null && currentNode.dialogueLines.Count > 0)
                {
                    if (currentLineIndex < currentNode.dialogueLines.Count - 1 || currentNode.loopThroughLines)
                    {
                        return true;
                    }
                    
                    // If we're at the end of lines but not waiting for a condition and have a next node
                    if (!IsWaitingForCondition() && !string.IsNullOrEmpty(currentNode.nextNodeID))
                    {
                        RuntimeDialogueNode nextNode = dialogueGraph.GetNodeByID(currentNode.nextNodeID);
                        return nextNode != null && 
                               ((nextNode.dialogueContent != null && nextNode.dialogueContent.Count > 0) || 
                                (nextNode.dialogueLines != null && nextNode.dialogueLines.Count > 0) || 
                                nextNode.nodeType != RuntimeDialogueNodeType.End);
                    }
                }
            }

            return false;
        }
        
        // Editor functionality
        public void SetDialogueGraph(RuntimeDialogueGraph graph)
        {
            dialogueGraph = graph;
        }
    }
}