using UnityEditor;
using UnityEngine;
using TriInspector.Editors;
using UnityEngine.UIElements;

namespace R0bbie.Timeline
{
    /// <summary>
    /// Editor class to update the GameObject name based on the shortName of the step and child position
    /// </summary>
    [CustomEditor(typeof(Step),true)]
    public class StepEditor : TriEditor
    {
        private TriEditorCore _core;
        
        /// <summary>
        /// Unity OnEnable function - called here when object is selected to be viewed in inspector
        /// </summary>
        void OnEnable()
        {
            Rename();
            
            // Re-implement base TriEditor.OnEnable logic (not overridable sadly as its private)
            _core = new TriEditorCore(this);
        }
        

        /// <summary>
        /// Unity OnDisable function - called here when object selection in inspector view is cleared
        /// </summary>
        void OnDisable()
        {
            Rename();
            
            // Re-implement base TriEditor.OnDisable logic
            _core.Dispose();
        }

        
        /// <summary>
        /// Rename the Step GameObject to reflect latest settings
        /// </summary>
        void Rename()
        {
            // If the object has been destroyed avoid changing the name
            if (!target)
                return;
            
            // Get target as Step
            Step step = target as Step;
            if (!step)
                return;

            step.UpdateStepName();
        }
        
        
        /// <summary>
        /// Function from base TriEditor class which frustratingly we have to re-implement here due to accessibility issues in the base class
        /// </summary>
        /// <returns></returns>
        public override VisualElement CreateInspectorGUI()
        {
            return _core.CreateVisualElement();
        }
        
        
    }
}