using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace UltraCombos.Frozen
{
    public class GiantSnowflake : MonoBehaviour
    {
        Material material;
        float alpha = 0.0f;
        float smooth = 0.025f;

        DShowMoviePlayer player;

        [SerializeField]
        KinectOpticalFlowMath kinect;

        [SerializeField]
        float triggerRadius = 1.5f;

        [SerializeField]
        float cooldown = 2.0f;

        private void Start()
        {
            material = GetComponent<MeshRenderer>().sharedMaterial;
            player = GetComponent<DShowMoviePlayer>();

            StartCoroutine(Flow());
        }

        private void FixedUpdate()
        {
            if (SceneController.Instance.rate < 0.5f)
            {
                alpha = Mathf.Lerp(alpha, 1.0f, smooth);
            }
            else
            {
                alpha = Mathf.Lerp(alpha, 0.0f, smooth);
            }

            material.color = new Color(1.0f, 1.0f, 1.0f, alpha);

            
        }

        private void OnDrawGizmosSelected()
        {
            var pos = kinect.averagePositinon;
            Gizmos.DrawWireSphere(pos, 0.5f);
            if (new Vector2(pos.x - transform.position.x, pos.z - transform.position.z).magnitude < triggerRadius)
            {
                Gizmos.color = Color.red;
            }
            Gizmos.DrawWireSphere(transform.position, triggerRadius);

            Gizmos.color = Color.white;
        }

        [SerializeField, Range(0, 1)]
        float breakProgress = 0.1f;

        IEnumerator Flow()
        {
            float video_stamp = 0.0f;
            float progress = 0.0f;
            while (true)
            {
                video_stamp = Time.time;
                progress = 0.0f;
                player.Pause();
                player.Frame = 0;
                Debug.Log("Begin");
                while (progress < breakProgress)
                {
                    var pos = kinect.averagePositinon;
                    float dist = new Vector2(pos.x - transform.position.x, pos.z - transform.position.z).magnitude;

                    if (dist < triggerRadius)
                    {
                        //Debug.Log("OK");
                        progress += 0.001f;
                    }
                    else
                    {
                        progress = Mathf.Max(progress - 0.001f, 0.0f);
                    }

                    player.Frame = (uint)(player.TotalNumFrames * progress);
                    yield return null;
                }
                Debug.Log("Play the rest");
                player.Play();
                while (player.IsFinished == false)
                {
                    yield return null;
                }

                yield return new WaitForSeconds(cooldown);
                Debug.Log("Flow done");
            }            
        }
    }

}