using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine.UI;
using TMPro;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.Video;

namespace HK
{
    public class HomeUI : UIBase
    {
        [SerializeField] private RawImage rawVideo;
        [SerializeField] private Button btnNext;
        [SerializeField] private Button btnENG;
        [SerializeField] private Button btnChin;
        [SerializeField] private Button btnSetting;
        [SerializeField] private Button btnClose;
        [SerializeField] private List<string> videoClips;

        VideoPlayer player;
        bool isPlaying = false;

        public override void OnInit()
        {
            base.OnInit();

            #region AutoGen_Init

            rawVideo = GetValue<RawImage>("rawVideo");
            btnNext = GetValue<Button>("btnNext");
            btnENG = GetValue<Button>("btnENG");
            btnChin = GetValue<Button>("btnChin");
            btnSetting = GetValue<Button>("btnSetting");
            btnClose = GetValue<Button>("btnClose");

            btnNext.onClick.AddListener(OnClickbtnNext);
            btnENG.onClick.AddListener(OnClickbtnENG);
            btnChin.onClick.AddListener(OnClickbtnChin);
            btnSetting.onClick.AddListener(OnClickbtnSetting);
            btnClose.onClick.AddListener(OnClickbtnClose);

            #endregion

            player = rawVideo.GetComponent<VideoPlayer>();
        }

        public override void OnOpen()
        {
            isPlaying = true;
            StartCoroutine(LoopPlayVideo());
            base.OnOpen();
        }

        public override void OnClose()
        {
            base.OnClose();
            isPlaying = false;
            StopAllCoroutines();
            player.Stop();
        }

        IEnumerator LoopPlayVideo()
        {
            while (isPlaying)
            {
                foreach (var clip in videoClips)
                {
                    var path = Path.Combine(Application.streamingAssetsPath, clip);
                    UnityWebRequest www = UnityWebRequest.Get(path);
                    yield return www.SendWebRequest();

                    if (!www.isDone)
                    {
                        Debug.LogError("Failed to load video: " + www.error);
                    }

                    player.url = path;
                    // player.url = Path.Combine(Environment.CurrentDirectory, clip);
                    player.Prepare();

                    // Wait until the video is prepared
                    while (!player.isPrepared)
                    {
                        yield return null;
                    }

                    player.Play();

                    // Wait until the video is done playing
                    while (player.isPlaying)
                    {
                        yield return null;
                    }

                    // Release memory
                    player.Stop();
                    Resources.UnloadUnusedAssets();
                    System.GC.Collect();

                    // Optional delay between clips
                    yield return new WaitForSeconds(1);
                }
            }
        }

        #region AutoGen_Method

        private void OnClickbtnNext()
        {
            UIManager.Instance.ShowUIOnly(nameof(AgreementUI));
        }

        private void OnClickbtnENG()
        {
            LanguageManager.Instance.ChangeLanguageType(LanguageManager.LanguageType.English);
        }

        private void OnClickbtnChin()
        {
            LanguageManager.Instance.ChangeLanguageType(LanguageManager.LanguageType.Chinese);
        }

        private void OnClickbtnSetting()
        {
            UIManager.Instance.ShowUI(nameof(SettingUI));
        }

        private void OnClickbtnClose()
        {
        }

        #endregion

        public override void OnDispose()
        {
            base.OnDispose();

            #region AutoGen_Dispose

            btnNext.onClick.RemoveListener(OnClickbtnNext);
            btnENG.onClick.RemoveListener(OnClickbtnENG);
            btnChin.onClick.RemoveListener(OnClickbtnChin);
            btnSetting.onClick.RemoveListener(OnClickbtnSetting);
            btnClose.onClick.RemoveListener(OnClickbtnClose);

            rawVideo = null;
            btnNext = null;
            btnENG = null;
            btnChin = null;
            btnSetting = null;
            btnClose = null;

            #endregion
        }
    }
}