using TriInspector;
using UnityEngine;
using UnityEngine.Events;

namespace R0bbie.Timeline
{
    /// <summary>
    /// Command for simply invoking a Unity event
    /// </summary>
    [AddComponentMenu("Timeline/Commands/Invoke Unity Event (Step Command)")]
    [RequireComponent(typeof(Step))]
    public class InvokeEventCmd : StepCmd
    {
        // Exposed Variables

        [Title("Event")] 
        [SerializeField] UnityEvent commandEvent;
        
        
        /// <summary>
        /// Initialise the command
        /// </summary>
        protected override void Init()
        {
            init = true;
        }
        

        /// <summary>
        /// Do whatever this command is designed to do
        /// </summary>
        /// <param name="_parentStep"></param>
        public override void Activate(Step _parentStep)
        {
            base.Activate(_parentStep);

            // Play the event
            commandEvent?.Invoke();
            
            // Immediately complete command now event invoked
            Complete();
        }
        

        /// <summary>
        /// Do any cleanup stuff here, resetting command state, clearing garbage, etc. Called by parent StepCmd after Complete, should never be called within child command itself
        /// </summary>
        protected override void Cleanup()
        {
            active = false;
        }
        
        
    }
}