using System;
using System.Collections;
using System.IO;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.Formats.Jpeg;
using SixLabors.ImageSharp.Formats.Png;
using SixLabors.ImageSharp.Processing;
using UnityEngine;
using UnityEngine.UI;
using Image = UnityEngine.UI.Image;

namespace HK.FUJIFILM
{
    public class TransparentCaptureSystem_FUJIFILM : TransparentCaptureSystem<TransparentCaptureSystem_FUJIFILM>
    {
        protected override void Init()
        {
            Instance = this;
            base.Init();
        }

        void Update()
        {
            if (Input.GetKeyDown(captureKey))
            {
                CaptureAndCropNow();
            }
        }

        [ContextMenu("立即截图并裁剪1")]
        public override void CaptureAndCropNow(Action<byte[]> callback = null)
        {
            StartCoroutine(WaitCaptureAndCropFinished(callback));
        }

        public void PreviewCaptureAndCropFinished(Action<byte[]> callback = null)
        {
            StartCoroutine(WaitPreviewCaptureAndCropFinished(callback));
        }

        IEnumerator WaitPreviewCaptureAndCropFinished(Action<byte[]> callback = null)
        {
            var mugActualModelRenderFixed = uiRoot.GetComponent<MugActualModelRender_Fixed>();
            var image = mugActualModelRenderFixed.designParent.GetChild(0).GetComponent<Image>();
            image.enabled = true;
            yield return StartCoroutine(CaptureAndCrop(callback));
            Debug.Log("02 finished");
            image.enabled = false;
        }

        public void DesignCaptureAndCropFinished(Action<byte[]> callback = null)
        {
            StartCoroutine(WaitDesignCaptureAndCropFinished(callback));
        }

        public IEnumerator WaitDesignCaptureAndCropFinished(Action<byte[]> callback = null)
        {
            var mugActualModelRenderFixed = uiRoot.GetComponent<MugActualModelRender_Fixed>();
            var image = mugActualModelRenderFixed.designParent.GetChild(0).GetComponent<Image>();
            image.enabled = false;

            var verticalLayoutGroup = mugActualModelRenderFixed.designParent.GetComponent<VerticalLayoutGroup>();
            verticalLayoutGroup.enabled = true;
            // verticalLayoutGroup.childAlignment = TextAnchor.LowerLeft;

            var tmpWidth = cropWidth;
            var tmpHeight = cropHeight;
            var screenshotSize = mugActualModelRenderFixed.productScriptableObject.screenshotSize;
            cropWidth = (int)screenshotSize.x;
            cropHeight = (int)screenshotSize.y;
            cropOffset = new Vector2(0.5f, 0.5f);

            yield return StartCoroutine(CaptureAndCrop(callback));

            // 加载图像
            using (var sImage = SixLabors.ImageSharp.Image.Load(FullPath))
            {
                // 等比缩放至宽度为 200（高度自动计算以保持比例）
                sImage.Mutate(x => x.Resize(new ResizeOptions
                {
                    Size = new Size(324, 204), // 高度设为 0 即自动按比例计算
                    Mode = ResizeMode.Max // 确保图像完全显示，不裁剪
                }));

                var directoryFullName = new FileInfo(FullPath).Directory.FullName;
                // 保存为 JPEG（设置质量）
                sImage.SaveAsPng($"{directoryFullName}/output.png", new PngEncoder());
            }


            // verticalLayoutGroup.childAlignment = TextAnchor.MiddleCenter;
            verticalLayoutGroup.enabled = false;
            cropWidth = tmpWidth;
            cropHeight = tmpHeight;
            cropOffset = new Vector2(0f, 0f);

            Debug.Log("01 finished");
            image.enabled = false;
        }

        IEnumerator WaitCaptureAndCropFinished(Action<byte[]> callback = null)
        {
            var mugActualModelRenderFixed = uiRoot.GetComponent<MugActualModelRender_Fixed>();
            var image = mugActualModelRenderFixed.designParent.GetChild(0).GetComponent<Image>();
            image.enabled = false;
            yield return StartCoroutine(CaptureAndCrop());
            Debug.Log("01 finished");
            image.enabled = true;

            // var tmpWidth = cropWidth;
            // var tmpHeight = cropHeight;
            // var screenshotSize = mugActualModelRenderFixed.productScriptableObject.screenshotSize;
            // cropWidth = (int)screenshotSize.x;
            // cropHeight = (int)screenshotSize.y;

            yield return StartCoroutine(CaptureAndCrop(callback));
            Debug.Log("02 finished");

            // cropWidth = tmpWidth;
            // cropHeight = tmpHeight;

            image.enabled = false;
        }
    }
}