import { AVCaptureSession, AVAssetExportPresetHighestQuality, AVCaptureDevice, AVMediaType, AVCaptureVideoDataOutputSampleBufferDelegate, AVCaptureDeviceInput, AVCaptureInput, AVCaptureVideoDataOutput, AVCaptureConnection, AVCaptureVideoPreviewLayer, AVLayerVideoGravity, AVCaptureVideoOrientation, AVCaptureMovieFileOutput, AVCaptureFileOutputRecordingDelegate, AVCaptureOutput, AVCaptureFileOutput, AVAsset, AVAssetExportSession, AVFileType } from 'AVFoundation';
import { PHPhotoLibrary, PHAuthorizationStatus } from 'Photos';
import { CMSampleBuffer, CMSampleBufferGetFormatDescription, CMFormatDescription, CMVideoFormatDescriptionGetDimensions, CMSampleBufferGetImageBuffer } from 'CoreMedia';
import { DispatchQueue } from "Dispatch"
import { UIView, UIImage, UISaveVideoAtPathToSavedPhotosAlbum, UIImageWriteToSavedPhotosAlbum, UIApplication, UIImageView, UILabel, UIViewController, UIFontDescriptor, UIFont, NSTextAlignment, UITapGestureRecognizer, UIAlertController, UIGraphicsImageRenderer, UIGraphicsRendererContext, UIBezierPath, CameraDevice, UIGraphicsGetCurrentContext, UIGraphicsBeginImageContextWithOptions, UIGraphicsGetImageFromCurrentImageContext, UIGraphicsEndImageContext, UIDevice, UIDeviceOrientation } from 'UIKit';
import { CGRect, CGFloat, CGPoint, CGAffineTransform, CGSize } from 'CoreFoundation';

import { NotificationCenter, NSNotification, Notification, FileManager, Data, URL, NSError } from 'Foundation';
import { Selector } from 'ObjectiveC';
import { Alignment } from 'ARKit';
import { CIImage, CIContext } from 'CoreImage';
import { CGPath } from 'CoreGraphics';

type TAKE_CALL_BACK = (path : CMSampleBuffer) => void;


let captureSession : null | AVCaptureSession = null;
// 图像捕捉事件代理。
let captureOutDelegate : CaptureOutSessionBuffer | null = null;
let recorderingDelegate : recorderingDelegateObj | null = null;
let isOpeing : boolean = false;
let taking : boolean = false;
let takingTaron = false
let takePhotoCall = (path : string) => { }
let takvideoRecoderCall = (path : string) => { }
class CaptureOutSessionBuffer implements AVCaptureVideoDataOutputSampleBufferDelegate {
	callback : TAKE_CALL_BACK = (imgBuffer : CMSampleBuffer) => { }
	camrea : xCamrea;
	camreaDevsBuilder : AVCaptureDevice
	constructor(dv : TAKE_CALL_BACK, ca : xCamrea, cdv : AVCaptureDevice) {
		this.callback = dv;
		this.camrea = ca;
		this.camreaDevsBuilder = cdv;
		super()
	}
	captureOutput(output : AVCaptureOutput, @argumentLabel("didOutput") sampleBuffer : CMSampleBuffer, @argumentLabel("from") connection : AVCaptureConnection) {

		if (taking) {

			taking = false
			// this.camrea.pasue()

			takingTaron = false;
			let islock = UTSiOS.try(this.camreaDevsBuilder.lockForConfiguration(), "?")
			if (islock != null) {
				if (this.camreaDevsBuilder.isTorchActive) {
					this.camreaDevsBuilder.torchMode = AVCaptureDevice.TorchMode.off
				}
				this.camreaDevsBuilder.unlockForConfiguration()
			}


			this.callback(sampleBuffer)
		}
	}
}

class recorderingDelegateObj implements AVCaptureFileOutputRecordingDelegate {
	callback : TAKE_CALL_BACK = (imgBuffer : CMSampleBuffer) => { }
	// 保存到相册的回调方法
	@objc video(videoPath : String,
		@argumentLabel("didFinishSavingWithError") error ?: NSError,
		contextInfo ?: UnsafeMutableRawPointer) {
		if (error != null) {
			console.error("tmui4x:Error recording movie: ", error)
			return
		}
		console.log("Video saved successfully")
	}

	fileOutput(
		output : AVCaptureFileOutput,
		@argumentLabel("didStartRecordingTo") fileURL : URL,
		@argumentLabel("from") connections : AVCaptureConnection[]) {
		// console.log("开始录制")
	}
	fileOutput(
		output : AVCaptureFileOutput,
		@argumentLabel("didFinishRecordingTo") outputFileURL : URL,
		@argumentLabel("from") connections : AVCaptureConnection[],
		@argumentLabel("error") error ?: NSError) {
		if (error != null) {
			console.error("tmui4x:Error recording movie: ", error)
			return
		}
		// UISaveVideoAtPathToSavedPhotosAlbum(
		// 	outputFileURL.path,
		// 	nil,
		// 	#selector(this.video),
		// 	nil
		// )
		// recorderingDelegate = null;
		let mp4FileURL = outputFileURL.deletingPathExtension().appendingPathExtension("mp4") // 转换后的文件路径
		let _this = this;
		convertMovToMp4(outputFileURL, mp4FileURL, (okmp4str : string) => {
			// console.log('end...recodervideo', okmp4str)
			takvideoRecoderCall(okmp4str)
			// 保存到相册
			// UISaveVideoAtPathToSavedPhotosAlbum(
			// 	mp4FileURL.path,
			// 	nil,
			// 	#selector(_this.video),
			// 	nil
			// )
			recorderingDelegate = null;
		})

	}
}

function getUid(rdix = 1, length = 12) : string {
	let ix = "";
	// #ifdef APP
	ix = Math.floor(Math.random() * rdix * Math.floor(Math.random() * Date.now())).toString().substring(0, length as Int);
	// #endif
	return ix;
}
function getDevRation():AVCaptureVideoOrientation{
	// let ration = 0
	let deviceOrientation = UIDevice.current.orientation
	switch (deviceOrientation) {
		case UIDeviceOrientation.portrait:
			console.log("竖屏正向")
			// ration = 90
			return AVCaptureVideoOrientation.portrait
			
		case UIDeviceOrientation.portraitUpsideDown:
			console.log("竖屏倒向")
			return AVCaptureVideoOrientation.portraitUpsideDown
		case UIDeviceOrientation.landscapeLeft:
			console.log("横屏左")
			return AVCaptureVideoOrientation.landscapeRight
		case UIDeviceOrientation.landscapeRight:
			console.log("横屏右")
			return AVCaptureVideoOrientation.landscapeLeft
		case UIDeviceOrientation.faceDown:
			console.log("屏幕朝下")
			break;
		case UIDeviceOrientation.unknown:
			console.log("未知方向")
			break;
		default:
			console.log("其他方向")
	}
	
	return AVCaptureVideoOrientation.portrait
}
function fixImageOrientation(image : UIImage) : UIImage {
	let cgImage = image.cgImage!
	const width = cgImage.width
	const height = cgImage.width

	// let ration = 0
	// 计算绘制尺寸
	let drawRect = CGRect.zero
	let imageSize = image.size
	// 获取设备物理方向
	let deviceOrientation = UIDevice.current.orientation
	if (deviceOrientation == UIDeviceOrientation.portrait) {
		drawRect.size = new CGSize(width = imageSize.height, height = imageSize.width)
	}else{
		drawRect.size = image.size
	}
	// 竖屏正向
	if (deviceOrientation == UIDeviceOrientation.portrait) {
		// ration = 90
		UIGraphicsBeginImageContextWithOptions(drawRect.size, false, image.scale)
		// 获取当前上下文
		let context = UIGraphicsGetCurrentContext()!
		// 逆时针旋转90度
		context.translateBy(x = drawRect.size.width, y = 0)
		context.rotate(by = new CGFloat(Math.PI / 2))
	} else if (deviceOrientation == UIDeviceOrientation.landscapeRight) {
		// ration = 180
		UIGraphicsBeginImageContextWithOptions(drawRect.size, false, image.scale)
		let context = UIGraphicsGetCurrentContext()!
		context.translateBy(x = drawRect.size.width, y = drawRect.size.height)
		context.rotate(by = new CGFloat(Math.PI))
				
	} else if (deviceOrientation == UIDeviceOrientation.landscapeLeft) {
		
	}

	image.draw(in = new CGRect(origin = CGPoint.zero, size = imageSize))
	let normalizedImage = UIGraphicsGetImageFromCurrentImageContext()
	UIGraphicsEndImageContext()
	return normalizedImage == null ? image : normalizedImage!
}


function convertMovToMp4(movFileURL : URL, mp4FileURL : URL, ok : (str : string) => void) {
	// 加载 AVAsset
	let asset = new AVAsset(url = movFileURL)
	let exportSession = new AVAssetExportSession(asset = asset, presetName = AVAssetExportPresetHighestQuality)
	// 创建 AVAssetExportSession
	if (exportSession == null) {
		ok('')
		return;
	}

	// 配置导出设置
	exportSession!.outputURL = mp4FileURL
	exportSession!.outputFileType = AVFileType.mp4
	exportSession!.shouldOptimizeForNetworkUse = true
	exportSession!.exportAsynchronously(completionHandler = () => {
		switch (exportSession!.status) {
			case AVAssetExportSession.Status.completed:
				// console.log("导出成功", mp4FileURL.path)
				ok(mp4FileURL.path)
				break
			case AVAssetExportSession.Status.failed:
				if (exportSession!.error != null) {
					// console.error("导出失败", mp4FileURL.path)
					ok('')
				}
				break
			case AVAssetExportSession.Status.cancelled:
				// console.error("导出被取消")
				ok('')
				break
			default:
				ok('')
				break
		}
	})

}

export class xCamrea {
	parentView : UIView | null = null;
	camreaViewLayer : UIView | null = null;
	imageUiView : UIImageView | null = null;
	isSaveToPhoto : boolean = false;
	//摄像头朝向,默认是向后置摄像头.
	CamerDeviceDir = AVCaptureDevice.Position.back
	//摄像头的是否开
	flashMode = false
	// 是否拍照 中 
	isTakePhoto = false
	// AVCaptureMovieFileOutput
	movieFileOutput : AVCaptureMovieFileOutput | null = null;
	takeModelType = 'photo'; //photo,video
	isPaused = false
	constructor() {
		super();
	}
	setView(view : UIView) {
		this.parentView = view;
	}
	getIsOpeningCameraing() : boolean {
		return captureSession != null
	}
	openCamrea() {
		this.closeCamrea();
		if (captureSession == null) {
			this._openCamrea()
		}
	}

	startRecoderVideo(call : (path : string) => void) {
		takvideoRecoderCall = call;
		let _this = this;
		if (_this.movieFileOutput?.isRecording == true && _this.isPaused) {
			// if (UTSiOS.available("iOS 18.0, *")) {
			// 	_this.movieFileOutput?.resumeRecording()
			// 	_this.isPaused = false;
			// }
		} else {
			if (isOpeing || _this.movieFileOutput != null) {
				this.stopRecoderVideo()
				this.closeCamrea()
			}
			_this.takeModelType = 'video'
			_this._openCamrea();
		}
	}
	pauseRecoderVideo() {
		let _this = this;
		// if (UTSiOS.available("iOS 18.0, *")) {
		// 	_this.movieFileOutput?.pauseRecording()
		// 	_this.isPaused = true;
		// }

	}
	stopRecoderVideo() {
		let _this = this;
		_this.takeModelType = 'photo'
		_this.movieFileOutput?.stopRecording()
		_this.isPaused = false;
		_this.movieFileOutput = null;

	}

	recoderVideoCan() {
		if (this.movieFileOutput == null || isOpeing == false) {
			// console.error('no recoder video by tmui4x,')
			return;
		}
		let userDir = FileManager.default.urls(for = FileManager.SearchPathDirectory.cachesDirectory, in = FileManager.SearchPathDomainMask.userDomainMask).first!
		let filename = 'tmui4xCamreaVido' + getUid(1, 12) + '.mov';
		let outputURL = userDir.appendingPathComponent(filename) as URL
		// AVCaptureFileOutputRecordingDelegate
		recorderingDelegate = new recorderingDelegateObj()
		// 开始录制
		this.movieFileOutput!.startRecording(to = outputURL, recordingDelegate = recorderingDelegate!)

		this.isPaused = false
	}
	takePhoto(call : (path : string) => void, savetophoto : boolean) {

		this.isSaveToPhoto = savetophoto
		// isOpeing = false;
		taking = true;
		takePhotoCall = call;

	}
	savePhoto(imageData : UIImage) {
		DispatchQueue.main.asyncAfter(deadline = (DispatchTime.now() + 1) as DispatchTime, execute = () => {
			new UIImageWriteToSavedPhotosAlbum(imageData, nil, nil, nil)
			let alertController = new UIAlertController(title = "提醒", message = "保存成功", preferredStyle = UIAlertController.Style.alert);
			UTSiOS.getCurrentViewController().present(alertController, animated = true, completion = () => {
				alertController.dismiss(animated = true, completion = nil)
			})

		})


	}
	setCameraDir(type : string) {
		this.CamerDeviceDir = type == 'back' ? AVCaptureDevice.Position.back : AVCaptureDevice.Position.front
	}
	setFlash(type : boolean) {
		this.flashMode = type;
	}
	saveCacheDir(imgs : UIImage) {
		let img = fixImageOrientation(imgs)
		if (this.isSaveToPhoto) {
			this.savePhoto(img)
		}
		// 获得当前用户的缓存目录路径主目录。
		let userDir = FileManager.default.urls(for = FileManager.SearchPathDirectory.cachesDirectory, in = FileManager.SearchPathDomainMask.userDomainMask).first!
		let filename = 'tmui4xCamrea' + getUid(1, 12) + '.jpg';
		let destinationURL = userDir.appendingPathComponent(filename)
		let imageData = img.jpegData(compressionQuality = 1);
		if (imageData == null) {
			return;
		}

		let real = UTSiOS.try(imageData!.write(to = destinationURL), "?");

		if (real != null) {
			takePhotoCall(destinationURL.path)
		}

	}
	closeCamrea() {
		this.pasue()
		if (this.camreaViewLayer != null) {
			this.camreaViewLayer!.removeFromSuperview()
		}
		if (this.imageUiView != null) {
			this.imageUiView!.removeFromSuperview()
		}
		this.camreaViewLayer = null
		this.imageUiView = null
		// this.movieFileOutput?.stopRecording()
		this.movieFileOutput = null;
		recorderingDelegate = null;
	}
	pasue() {
		if (captureSession != null) {
			if (captureSession!.isRunning) {
				captureSession!.stopRunning()
			}
			for (input in captureSession!.inputs) {
				captureSession!.removeInput(input)
			}
			for (output in captureSession!.outputs) {
				captureSession!.removeOutput(output)
			}
		}
		captureSession = null;
		captureOutDelegate = null;
		isOpeing = false;
		taking = false

	}
	private _openCamrea() {
		let t = this;
		isOpeing = true;
		captureSession = new AVCaptureSession();
		if (this.flashMode) {
			takingTaron = true;
		} else {
			takingTaron = false
		}
		let captureDevice = AVCaptureDevice.default(AVCaptureDevice.DeviceType.builtInWideAngleCamera, for = AVMediaType.video, position = this.CamerDeviceDir)

		let captureOut = new AVCaptureVideoDataOutput();
		captureSession!.sessionPreset = AVCaptureSession.Preset.photo
		captureOutDelegate = new CaptureOutSessionBuffer((result : CMSampleBuffer) => {

			let pixelBuffer = CMSampleBufferGetImageBuffer(result)
			if (pixelBuffer == null) return;
			let ciImage = new CIImage(cvPixelBuffer = pixelBuffer!)
			let context = new CIContext(options = nil)
			if (context != null) {
				let cgImage = context.createCGImage(ciImage, from = ciImage.extent)
				let image = new UIImage(cgImage = cgImage!)
				// t.rotateImage(image, Math.PI/2)
				t.saveCacheDir(image)
			}

		}, this, captureDevice!)

		// 新建设备的输入设备
		let inputDevice = UTSiOS.try(new AVCaptureDeviceInput(device = captureDevice!), "?")
		if (inputDevice != null) {
			// 添加输入到会话中。
			captureSession!.addInput(inputDevice!)
		}

		captureOut.alwaysDiscardsLateVideoFrames = true;
		// 设置输出会话
		captureOut.setSampleBufferDelegate(captureOutDelegate!, queue = DispatchQueue.global())
		if (captureSession!.canAddOutput(captureOut)) {
			captureSession!.addOutput(captureOut)
			console.log("绑定输出层正确！")
		}

		this.xCamreaInit(captureDevice!);
	}

	xCamreaInit(cdv : AVCaptureDevice) {
		let camreaDevsBuilder : AVCaptureDevice = cdv


		let t = this;

		let parentView = this.parentView!


		// 绘制界面
		// 创建一张图片预览层。

		// 	imageUiView!.frame = this.parentView!.frame
		// 	imageUiView!.alpha = new CGFloat(0)

		// 	parentView!.addSubview(imageUiView!);

		// 创建视频预览层。
		let camelayer = new UIView()
		let parentCGrect = parentView.layer.bounds
		let width = Int(parentCGrect.width)
		let height = Int(parentCGrect.height)
		camelayer.frame = new CGRect(x = 0, y = 0, width = width, height = height)
		this.camreaViewLayer = camelayer;

		let isopenRecoderVideo = true;

		if (this.takeModelType == 'video') {
			console.log('开始录制视频')
			this.movieFileOutput = new AVCaptureMovieFileOutput();
			let audioDevice = AVCaptureDevice.default(for = AVMediaType.audio)
			let audioInput = UTSiOS.try(new AVCaptureDeviceInput(device = audioDevice!), '?')
			console.log('配置声音', audioInput)
			if (audioInput != null && captureSession!.canAddInput(audioInput!)) {
				captureSession!.addInput(audioInput!)
			}
			console.log('配置输出视频文件', this.movieFileOutput)
			if (captureSession!.canAddOutput(this.movieFileOutput!)) {
				captureSession!.addOutput(this.movieFileOutput!)
			} else {
				isopenRecoderVideo = false
			}



		}

		let cameraView = new AVCaptureVideoPreviewLayer(session = captureSession!)

		cameraView.videoGravity = AVLayerVideoGravity.resizeAspectFill
		// AVCaptureVideoOrientation.portrait
		cameraView.connection!.videoOrientation = getDevRation()
		cameraView.frame = new CGRect(x = 0, y = 0, width = width, height = height)
		
		

		DispatchQueue.main.async(execute = () : void => {
			parentView.addSubview(camelayer);
			// 绑定渲染层。
			camelayer.layer.addSublayer(cameraView)
			captureSession!.startRunning()

			t.isPaused = false

			if (t.takeModelType == 'video') {
				if (isopenRecoderVideo) {
					setTimeout(function () {
						t.recoderVideoCan()
					}, 500);
				} else {
					takvideoRecoderCall('')
				}
			}

			if (takingTaron && !camreaDevsBuilder.isTorchActive) {
				let islock = UTSiOS.try(camreaDevsBuilder.lockForConfiguration(), "?")
				if (islock != null) {
					camreaDevsBuilder.torchMode = AVCaptureDevice.TorchMode.on
					camreaDevsBuilder.unlockForConfiguration()
				}

			}
		})

	}
}