using System.Collections;
using UnityEngine;
using UI.Poem;
using System.Collections.Generic;
using ET;
using FairyGUI;
using System.Threading.Tasks;

namespace GFGGame
{
    public class PoemPhotoSaveView : BaseWindow
    {
        private UI_PoemPhotoSaveUI _ui;
        private int curIndex;
        private bool saveFinished;
        private bool captureFinished;
        private byte[] byteArr;

        public override void Dispose()
        {
            if(_ui != null)
            {
                _ui.Dispose();
                _ui = null;
            }

            base.Dispose();
        }

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

            packageName = UI_PoemPhotoSaveUI.PACKAGE_NAME;
            _ui = UI_PoemPhotoSaveUI.Create();
            viewCom = _ui.target;
            isfullScreen = true;
            this.modal = false;
            clickBlankToClose = false;
        }

        protected override void OnShown()
        {
            base.OnShown();

            SavePhotoList savePhoto = (SavePhotoList)viewData;
            _ui.m_c1.selectedIndex = savePhoto.pageIndex;
            UpdateProgress(0, savePhoto.listChoose.Count);
            RefreshUI(savePhoto);
        }

        protected override void OnHide()
        {
            base.OnHide();
            ResetData();
        }

        private void ResetData()
        {
            curIndex = 0;
            byteArr = null;
            saveFinished = false;
            captureFinished = false;
        }

        private async void RefreshUI(SavePhotoList savePhoto)
        {
            for(int i = 0; i < savePhoto.listChoose.Count; i++)
            {
                int index = GetPhotoListIndex(savePhoto.photoInfos, savePhoto.listChoose[i]);

                byte[] bytes = null;
                if (_ui.m_c1.selectedIndex == 0)
                {
                    RefreshPhoto(savePhoto.photoInfos[index]);
                    bytes = savePhoto.photoInfos[index].Bytes;
                }
                else
                {
                    RefreshTravelPhoto(savePhoto.photoInfos[i]);
                    captureFinished = false;
                    Timers.inst.StartCoroutine(CaptureByUI());
                    while (!captureFinished)
                    {
                        await Task.Delay(17);
                    }
                    bytes = byteArr;
                }

                saveFinished = false;
                SavePhoto(bytes);
                while (!saveFinished)
                {
                    await Task.Delay(17);
                }

                ++curIndex;
                UpdateProgress(curIndex, savePhoto.listChoose.Count);
                if (curIndex == savePhoto.listChoose.Count)
                {
                    PromptController.Instance.ShowFloatTextPrompt("已全部保存至相册！");
                    Hide();
                }
            }

        }

        private int GetPhotoListIndex(List<PoemPhotoData> photoInfos, long pictureID)
        {
            for (int i = 0; i < photoInfos.Count; i++)
            {
                if (photoInfos[i].PictureId == pictureID)
                {
                    return i;
                }
            }
            return -1;
        }

        private void UpdateProgress(int cur, int max)
        {
            _ui.m_progress.value = cur;
            _ui.m_progress.max = max;
        }

        private void RefreshPhoto(PoemPhotoData data)
        {
            UI_ListPhotoPreviewItem item = UI_ListPhotoPreviewItem.Proxy(_ui.m_personalPhoto.target);

            item.m_comPhoto.m_loaPhoto.texture = data.Ntexture;
            UI_ListPhotoPreviewItem.ProxyEnd();
        }

        private void RefreshTravelPhoto(PoemPhotoData data)
        {
            UI_ComPostcard item = UI_ComPostcard.Proxy(_ui.m_travelPhoto.target);

            PoemPhotoData photoData = data;
            TravelLoactionCfg loactionCfg = TravelLoactionCfgArray.Instance.GetCfg(photoData.TravelLocationId);

            item.m_comTravel.m_loaBg.url = ResPathUtil.GetTravelBgPath(loactionCfg.res);
            item.m_txtLocationName.text = loactionCfg.name;
            item.m_txtTime.text = TimeUtil.FormattingTimeTo_yyyMMdd1(photoData.CreationTime);
            item.m_comTravel.m_loaRole.url = "";
            if (photoData.TravelSuitId > 0)
            {
                TravelSuitCfg travelSuitCfg = TravelSuitCfgArray.Instance.GetCfg(photoData.TravelSuitId);
                item.m_comTravel.m_loaRole.url = ResPathUtil.GetTravelRolePath(travelSuitCfg.reourcesArr[photoData.SuitResIndex]);
                item.m_comTravel.m_loaRole.SetXY(loactionCfg.positionsArr[photoData.PositionIndex][0], loactionCfg.positionsArr[photoData.PositionIndex][1]);
            }

            UI_ComPostcard.ProxyEnd();
        }

        private IEnumerator CaptureByUI()
        {
            //等待帧画面渲染结束
            yield return new WaitForEndOfFrame();

            int width = (int)(_ui.m_saveImg.width * UIContentScaler.scaleFactor);
            int height = (int)(_ui.m_saveImg.height * UIContentScaler.scaleFactor);

            Vector2 pos = _ui.m_saveImg.LocalToGlobal(Vector2.zero);
            pos.y = Screen.height - pos.y - height;

            Texture2D tex = new Texture2D(width, height, TextureFormat.RGB24, false);
            //从屏幕读取像素, leftBtmX/leftBtnY 是读取的初始位置,width、height是读取像素的宽度和高度
            tex.ReadPixels(new Rect(pos.x, pos.y, width, height), 0, 0);
            //执行读取操作
            tex.Apply();
            byte[] bytes = tex.EncodeToPNG();

            captureFinished = true;
            byteArr = bytes;
        }

        private void SavePhoto(byte[] bytes)
        {
#if UNITY_EDITOR
            // pc端保存
            string path = Application.dataPath + "/StreamingAssets/" + TimeHelper.ServerNowSecs + curIndex + ".png";
            System.IO.File.WriteAllBytes(path, bytes);
            Debug.Log("the photo saved in：" + path);
            saveFinished = true;
#else
            // 手机端
            string fileName = "wsj" + TimeHelper.ServerNowSecs + curIndex + ".jpg";
            NativeGallery.Permission permission = NativeGallery.SaveImageToGallery(bytes, "Wanshijing", fileName, (success, path) =>
            {
                if (success)
                {
                    saveFinished = true;
                }
                else
                {

                }
            });
#endif
        }
    }
}