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;

        [SerializeField]
        DShowClip clip;
        DShowMoviePlayer player;

        [SerializeField]
        KinectOpticalFlowMath kinect;

        [SerializeField]
        float triggerRadius = 1.5f;

        [SerializeField]
        float cooldown = 2.0f;

        [SerializeField]
        float offset = 1.5f;
        Vector3 root;

        Coroutine flow = null;

        private void Start()
        {
            root = transform.position;

            //StartCoroutine(Flow());
        }

        private void OnEnable()
        {
            if (material == null)
                material = GetComponent<MeshRenderer>().material;

            if (player == null)
            {
                player = gameObject.AddComponent<DShowMoviePlayer>();
                player.VideoAsset = clip;
                player.Load();
            }

            if (flow != null)
                StopCoroutine(flow);

            flow = 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);

            material.mainTexture = player.Texture;

            if (flow == null)
                flow = StartCoroutine(Flow());
        }

        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;


            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);

            transform.position = root + new Vector3(Random.Range(-offset, offset), 0, 0);
            yield return null;
            //Debug.Log("Flow done");
        }
    }

}