using UnityEngine;
using UnityEngine.Video;
using OctoCore.Transitions;
using Unheimlich.Transitions;

namespace Unheimlich.Features.Hallucination
{
    /// <summary>
    /// Scene-local trigger for a double-blink hallucination sequence. Delegates all
    /// visual work to the persistent OctoEyelidBlink singleton.
    /// </summary>
    public class HallucinationFlash : MonoBehaviour
    {
        [SerializeField] private VideoClip _clip;
        [SerializeField] private Material _material;

        [Header("Timings")]
        [SerializeField, Min(0f)] private float _closeDuration = 0.1f;
        [SerializeField, Min(0f)] private float _holdClosed = 0.05f;
        [SerializeField, Min(0f)] private float _openDuration = 0.15f;
        [SerializeField, Min(0f)] private float _visibleHold = 0.5f;
        [SerializeField, Range(0f, 1f)] private float _showVideoAtCloseProgress = 0.25f;

        /// <summary>Triggers the hallucination sequence. No-op if the singleton is missing or busy.</summary>
        public void Play()
        {
            OctoEyelidBlink blink = OctoEyelidBlink.Instance;

            if (blink == null)
            {
                Debug.LogWarning("[HallucinationFlash] OctoEyelidBlink singleton not found in scene.");
                return;
            }

            if (blink.IsBusy)
                return;

            blink.SetClip(_clip, _material);

            blink.CloseEyes(_closeDuration, () =>
            {
                blink.Hold(_holdClosed, () =>
                {
                    blink.OpenEyes(_openDuration, () =>
                    {
                        blink.Hold(_visibleHold, () =>
                        {
                            blink.CloseEyes(_closeDuration, () =>
                            {
                                blink.HideVideo();
                                blink.Hold(_holdClosed, () =>
                                {
                                    blink.OpenEyes(_openDuration, null);
                                });
                            });
                        });
                    });
                });
            });

            blink.ShowVideoAfterDelay(_closeDuration * _showVideoAtCloseProgress);
        }
    }
}