using Core;
using UnityEngine;

namespace Interactions
{
    /// <summary>
    /// Triggers an animation when an interactable interaction completes successfully.
    /// Auto-discovers Interactable and Animator components on the same GameObject or children.
    /// </summary>
    public class TriggerAnimationOnInteraction : MonoBehaviour
    {
        [Header("Component References (Optional)")]
        [Tooltip("Interactable to listen to. Leave empty to auto-discover on this GameObject or children.")]
        [SerializeField] private InteractableBase interactable;
        
        [Tooltip("Animator to trigger. Leave empty to auto-discover on this GameObject or children.")]
        [SerializeField] private Animator animator;
        
        [Header("Animation Settings")]
        [Tooltip("Name of the animation trigger to fire when interaction completes")]
        [SerializeField] private string triggerName;

        private InteractableBase _interactable;
        private Animator _animator;
        private bool _isInitialized;

        private void Awake()
        {
            DiscoverComponents();
        }

        private void OnEnable()
        {
            if (_isInitialized && _interactable != null)
            {
                _interactable.interactionComplete.AddListener(OnInteractionComplete);
            }
        }

        private void OnDisable()
        {
            if (_interactable != null)
            {
                _interactable.interactionComplete.RemoveListener(OnInteractionComplete);
            }
        }

        /// <summary>
        /// Auto-discover Interactable and Animator components if not manually assigned
        /// </summary>
        private void DiscoverComponents()
        {
            // Use assigned Interactable or try to find it
            _interactable = interactable;
            if (_interactable == null)
            {
                _interactable = GetComponent<InteractableBase>();
            }
            if (_interactable == null)
            {
                _interactable = GetComponentInChildren<InteractableBase>();
            }

            if (_interactable == null)
            {
                Debug.LogError($"[TriggerAnimationOnInteraction] No InteractableBase found on {gameObject.name} or its children!");
                return;
            }

            // Use assigned Animator or try to find it
            _animator = animator;
            if (_animator == null)
            {
                _animator = GetComponent<Animator>();
            }
            if (_animator == null)
            {
                _animator = GetComponentInChildren<Animator>();
            }

            if (_animator == null)
            {
                Debug.LogError($"[TriggerAnimationOnInteraction] No Animator found on {gameObject.name} or its children!");
                return;
            }

            if (string.IsNullOrEmpty(triggerName))
            {
                Debug.LogWarning($"[TriggerAnimationOnInteraction] Trigger name is empty on {gameObject.name}!");
            }

            _isInitialized = true;
            
            string interactableSource = interactable != null ? "assigned" : "auto-discovered";
            string animatorSource = animator != null ? "assigned" : "auto-discovered";
            Logging.Debug($"[TriggerAnimationOnInteraction] Initialized on {gameObject.name} - Interactable: {_interactable.gameObject.name} ({interactableSource}), Animator: {_animator.gameObject.name} ({animatorSource})");
        }

        /// <summary>
        /// Called when interaction completes
        /// </summary>
        /// <param name="success">Whether the interaction was successful</param>
        private void OnInteractionComplete(bool success)
        {
            if (!success)
            {
                Logging.Debug($"[TriggerAnimationOnInteraction] Interaction failed, not triggering animation");
                return;
            }

            if (_animator == null || string.IsNullOrEmpty(triggerName))
            {
                return;
            }

            _animator.SetTrigger(triggerName);
            Logging.Debug($"[TriggerAnimationOnInteraction] Triggered animation: {triggerName}");
        }

#if UNITY_EDITOR
        private void OnValidate()
        {
            // Validate in editor
            if (string.IsNullOrEmpty(triggerName))
            {
                name = "TriggerAnimationOnInteraction (NO TRIGGER)";
            }
            else
            {
                name = $"TriggerAnimationOnInteraction ({triggerName})";
            }
        }
#endif
    }
}