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<template>
	<view style="width: 300px;height: 225px;">
		<slot />
	</view>
</template>
<script lang="uts">
	import { UniVideoPlayerConfig, UniVideoPlayerViewPresent } from "DCUniVideo"  assert { type: "implementationOnly" };
	import { URL, NSDictionary, CGFloat } from "Foundation";
	import { UIImage, UIInterfaceOrientationMask, UIInterfaceOrientation, UIView } from 'UIKit';
	import { Bool, Int } from 'Swift';
	import { Danmu } from "../interface.uts"
	
	export default {
		name: "video",
		data() {
			return {
			  present: null as UniVideoPlayerViewPresent | null,
			  delegate: null as DCloudUniVideoComponentDelegate | null,
			};
		},
		emits: ["play", "pause", "ended", "timeupdate", "fullscreenchange", "waiting", "error", "progress", "fullscreenclick", "controlstoggle"],
		props: {
			"src": { // 要播放视频的资源地址
				type: String,
				default: ""
			},
			"autoplay": { // 是否自动播放
				type: Boolean,
				default: false
			},
			"loop": { // 是否循环播放
				type: Boolean,
				default: false
			},
			"muted": { // 是否静音播放
				type: Boolean,
				default: false
			},
			"initialTime": { // 指定视频初始播放位置,单位为秒(s)
				type: Number,
				default: 0
			},
			"duration": { // 指定视频时长,单位为秒(s)
				type: Number,
				default: 0
			},
			"controls": { // 是否显示默认播放控件(播放/暂停按钮、播放进度、时间)
				type: Boolean,
				default: true
			},
			"danmuList": { // 弹幕列表
				type: Array as NSDictionary[],
				default: []
			},
			"danmuBtn": { // 是否显示弹幕按钮,只在初始化时有效,不能动态变更
				type: Boolean,
				default: false
			},
			"enableDanmu": { // 是否展示弹幕,只在初始化时有效,不能动态变更
				type: Boolean,
				default: false
			},
			"pageGesture": { // 在非全屏模式下,是否开启亮度与音量调节手势
				type: Boolean,
				default: false
			},
			"direction": { // 设置全屏时视频的方向,不指定则根据宽高比自动判断。有效值为 0(正常竖向), 90(屏幕逆时针90度), -90(屏幕顺时针90度)
				type: Number,
				default: -90
			},
			"showProgress": { // 是否展示进度条,若不设置,宽度大于240时才会显示
				type: Boolean,
				default: true
			},
			"showFullscreenBtn": { // 是否显示全屏按钮
				type: Boolean,
				default: true
			},
			"showPlayBtn": { // 是否显示视频底部控制栏的播放按钮
				type: Boolean,
				default: true
			},
			"showCenterPlayBtn": { // 是否显示视频中间的播放按钮
				type: Boolean,
				default: true
			},
			"showLoading": { // 是否显示loading控件
				type: Boolean,
				default: true
			},
			"enableProgressGesture": { // 是否开启控制进度的手势
				type: Boolean,
				default: true
			},
			"objectFit": { // 当视频大小与 video 容器大小不一致时,视频的表现形式。contain:包含,fill:填充,cover:覆盖
				type: String,
				default: "contain"
			},
			"poster": { // 视频封面的图片网络资源地址,如果 controls 属性值为 false 则设置 poster 无效	
				type: String,
				default: ""
			},
			"showMuteBtn": { // 是否显示静音按钮
				type: Boolean,
				default: false
			},
			"title": { // 视频的标题,全屏时在顶部展示
				type: String,
				default: ""
			},
			"enablePlayGesture": { // 是否开启播放手势,即双击切换播放/暂停
				type: Boolean,
				default: false
			},
			"vslideGesture": { // 在非全屏模式下,是否开启亮度与音量调节手势(同 page-gesture)
				type: Boolean,
				default: false
			},
			"vslideGestureInFullscreen": { // 在全屏模式下,是否开启亮度与音量调节手势
				type: Boolean,
				default: true
			},
			"codec": { // 解码器选择,hardware:硬解码(硬解码可以增加解码算力,提高视频清晰度。少部分老旧硬件可能存在兼容性问题);software:ffmpeg 软解码;
				type: String,
				default: "hardware"
			},
			"httpCache": { // 是否对 http、https 视频源开启本地缓存。缓存策略:开启了此开关的视频源,在视频播放时会在本地保存缓存文件,如果本地缓存池已超过100M,在进行缓存前会清空之前的缓存(不适用于m3u8等流媒体协议)
				type: Boolean,
				default: false
			},
			"playStrategy": { // 播放策略,0:普通模式,适合绝大部分视频播放场景;1:平滑播放模式(降级),增加缓冲区大小,采用open sl解码音频,避免音视频脱轨的问题,可能会降低首屏展现速度、视频帧率,出现开屏音频延迟等。 适用于高码率视频的极端场景;2: M3U8优化模式,增加缓冲区大小,提升视频加载速度和流畅度,可能会降低首屏展现速度。 适用于M3U8在线播放的场景
				type: Number,
				default: 0
			},
			"header": { // HTTP 请求 Header
				type: Map<string, string>,
				default: new Map<string, string>()
			},
		},
		watch: {
			"src": {
				handler(newValue : String, oldValue : String) {
					"[weak self]"
					this?.updateProp("src", newValue);
				},
				immediate: false
			},
			"autoplay": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("autoplay", newValue);
				},
				immediate: false
			},
			"loop": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("loop", newValue);
				},
				immediate: false
			},
			"muted": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("muted", newValue);
				},
				immediate: false
			},
			"initialTime": {
				handler(newValue: Number, oldValue: Number) {
					"[weak self]"
					this?.updateProp("initialTime", newValue);
				},
				immediate: false
			},
			"duration": {
				handler(newValue: Number, oldValue: Number) {
					"[weak self]"
					this?.updateProp("duration", newValue);
				},
				immediate: false
			},
			"controls": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("controls", newValue);
				},
				immediate: false
			},
			"danmuList": {
				handler(newValue : NSDictionary[], oldValue : NSDictionary[]) {
					"[weak self]"
					this?.updateProp("danmuList", newValue);
				},
				immediate: false
			},
			"danmuBtn": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("danmuBtn", newValue);
				},
				immediate: false
			},
			"enableDanmu": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("enableDanmu", newValue);
				},
				immediate: false
			},
			"pageGesture": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("pageGesture", newValue);
				},
				immediate: false
			},
			"direction": {
				handler(newValue: Number, oldValue: Number) {
					"[weak self]"
					this?.updateProp("direction", newValue);
				},
				immediate: false
			},
			"showProgress": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("showProgress", newValue);
				},
				immediate: false
			},
			"showFullscreenBtn": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("showFullscreenBtn", newValue);
				},
				immediate: false
			},
			"showPlayBtn": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("showPlayBtn", newValue);
				},
				immediate: false
			},
			"showCenterPlayBtn": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("showCenterPlayBtn", newValue);
				},
				immediate: false
			},
			"showLoading": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("showLoading", newValue);
				},
				immediate: false
			},
			"enableProgressGesture": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("enableProgressGesture", newValue);
				},
				immediate: false
			},
			"objectFit": {
				handler(newValue: String, oldValue: String) {
					"[weak self]"
					this?.updateProp("objectFit", newValue);
				},
				immediate: false
			},
			"poster": {
				handler(newValue: String, oldValue: String) {
					"[weak self]"
					this?.updateProp("poster", newValue);
				},
				immediate: false
			},
			"showMuteBtn": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("showMuteBtn", newValue);
				},
				immediate: false
			},
			"title": {
				handler(newValue: String, oldValue: String) {
					"[weak self]"
					this?.updateProp("title", newValue);
				},
				immediate: false
			},
			"enablePlayGesture": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("enablePlayGesture", newValue);
				},
				immediate: false
			},
			"vslideGesture": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("vslideGesture", newValue);
				},
				immediate: false
			},
			"vslideGestureInFullscreen": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("vslideGestureInFullscreen", newValue);
				},
				immediate: false
			},
			"httpCache": {
				handler(newValue: Boolean, oldValue: Boolean) {
					"[weak self]"
					this?.updateProp("httpCache", newValue);
				},
				immediate: false
			},
			"codec": {
				handler(newValue: string, oldValue: string) {
					"[weak self]"
					this?.updateProp("codec", newValue);
				},
				immediate: false
			},
			"playStrategy": {
				handler(newValue: number, oldValue: number) {
					"[weak self]"
					this?.updateProp("playStrategy", newValue);
				},
				immediate: false
			},
			"header": {
				handler(newValue : Map<string, any>, oldValue : Map<string, any>) {
					"[weak self]"
					let newStr = JSON.stringify(newValue)
					let oldStr = JSON.stringify(oldValue)
					if (newStr != oldStr) {
						this?.updateProp("header", newValue);
					}
				},
				immediate: false
			}
		},
		
		created() {
			let config = UniVideoPlayerConfig.init(options = this.attributes)
			this.delegate = new DCloudUniVideoComponentDelegate(this)
			this.present = new UniVideoPlayerViewPresent.init(config, this.delegate)
			if (this.delegate != null) {
				this.present!.delegate = this.delegate
			}
		},
		
		NVLoad() : UIView {
			if (this.present != null) {
				return this.present!.contentView;
			} else{
				return new UIView()
			}
		},
		
		NVLayouted() {
			if (!UTSiOS.isScreenLocked()) {
				this.present?.updateViewFrame(this.calculatedFrame);
			}
		},
		
		unmounted() { //释放播放器
			this.present?.destroy();
		},
		
		expose: ['play', 'pause', 'seek', 'stop', 'sendDanmu',  'playbackRate', 'requestFullScreen', 'exitFullScreen', 'showStatusBar', 'hideStatusBar'],
		
		methods: {
			/**
			 * 播放视频
			 */
			play: function () {
				this.present?.play() 
			},
			/**
			 * 暂停视频
			 */
			pause: function () {
				this.present?.pause() 
			},
			/**
			 * 跳转到指定位置
			 * @param pos 跳转到的位置,单位:秒(s)
			 */
			seek: function (pos : number) {
				this.present?.seek(pos.floatValue)
			},
			/**
			 * 切换到全屏
			 * @param direction 视频方向,0(正常竖向), 90(屏幕逆时针90度), -90(屏幕顺时针90度)
			 */
			requestFullScreen: function (direction : number) {
				let dir = UniVideoPlayerConfig.direction(direction)
				this.present?.requestFullScreen(dir)
			},
			/**
			 * 退出全屏
			 */
			exitFullScreen: function () {
				this.present?.exitFullScreenForJS()
			},
			/**
			 * 停止播放视频
			 */
			stop: function () {
				this.present?.stop() 
			},
			/** 
			 * 显示状态栏,仅在iOS全屏下有效
			 */
			showStatusBar: function () {
				this.present?.showStatusBar()
			},
			/**
			 * 隐藏状态栏,仅在iOS全屏下有效
			 */
			hideStatusBar: function () {
				this.present?.hideStatusBar()
			},

			/**
			 * 发送弹幕
			 * @param data 弹幕数据
			 */
			sendDanmu: function (data : Map<string, any>) {
				this.present?.sendDanmu(data)
			},
			/**
			 * 设置倍速播放
			 * @param rate 播放的倍率
			 */
			playbackRate: function (rate : string) {
				this.present?.palybackRate(rate);
			},
			
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			updateProp: function (key: string, value: any | null) {
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				DispatchQueue.main.async(execute=():void => {
					this.present?.setControlValue(value, key)
				})
				
			}
		}
	}
	@UTSiOS.keyword("private")
	class DCloudUniVideoComponentDelegate implements UniVideoPlayerProtocol {
		@UTSiOS.keyword("weak")
		private component: VideoComponent | null = null
		
		constructor(component: VideoComponent) {
			this.component = component
			super.init()
		}
		
		getCookieString(url: URL): string | null {
			return UTSiOS.getCookieString(url)
		}
		
		getCurrentUA(): string {
			return UTSiOS.getUserAgent()
		}
		
		sendEvent(name: string, params: Dictionary<string,any> | null) {
			switch (name){
				case "play":
				case "pause": 
				case "waiting":
				case "ended": 
				case "error": 
				case "click":
					this.component?.__$$emit(name);
					break;
				case "timeupdate": 
				case "fullscreenclick": 
				case "fullscreenchange": 
				case "controlstoggle":
					this.component?.__$$emit(name, params);
					break;
				default:
					break;
			}
		}
		
		loadImage(url: string, complete: (image: UIImage) => void) {
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			UTSiOS.loadImage(url,(image,data) => {
				if(image != null){
					complete(image!);
				}
			});
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		}
		
		lockScreen() {
			UTSiOS.lockScreen()
		}
		
		unlockScreen() {
		    UTSiOS.unlockScreen()
		}
		
		setFullScreen(yesOrNo: boolean) {
		    UTSiOS.setFullScreen(yesOrNo)
		}
		
		setHomeIndicatorAutoHidden(yesOrNo: boolean) {
		    UTSiOS.setHomeIndicatorAutoHidden(yesOrNo)
		}
		
		setTempOrientation(temp: UIInterfaceOrientationMask) {
		    UTSiOS.setTempOrientation(temp)
		}
		
		configSupportOrientation(orientation: UIInterfaceOrientation): boolean {
		    return UTSiOS.configSupportOrientation(orientation)
		}
		
		setDeviceInterfaceOrientation(orientation: UIInterfaceOrientation) {
		     UTSiOS.setDeviceInterfaceOrientation(orientation)
		}
		
		h5Path2SysPath(path: string, basePath: string | null) : string {
		    return UTSiOS.getResourceAbsolutePath(path, basePath)   
		}
		
		workRootPath() : string {
		    return UTSiOS.getWorkRootPath()
		}
		
		videoPlayerExitFullScreen(orientation: UIInterfaceOrientation) {
			
		}
		
		videoPlayerEnterFullScreen(orientation: UIInterfaceOrientation) {
			
		}
		
		videoCacheDir(): string {
			return UTSiOS.getVideoCacheDir()
		}
	}
</script>