import {
  _decorator,
  isValid,
  Node,
  VideoClip,
  UITransform,
  Vec3,
  VideoPlayer,
  Size,
} from "cc";
import Utils from "../../Main/Common/Utils";
import li_BaseView from "../../Main/Common/li_BaseView";
import ResManager from "../../Main/Manager/ResManager";
import { DataManager, DataId } from "../../chat18x/data/DataManager";
import { EnvData } from "../../chat18x/data/EnvData";
import { logger } from "db://assets/Scripts/Main/Common/Logger";

const { ccclass, property } = _decorator;

//场景背景层 - 视频模式
@ccclass("SceneBgVideoLayer")
export class SceneBgVideoLayer extends li_BaseView {
  private _nodeTab: any = {};
  private _data;

  static handle: SceneBgVideoLayer | null = null;

  private videoPlayer: VideoPlayer = null;
  private isPlaying: boolean = false;
  private currentVideoData: any = null;

  // 待处理的视频配置（用于在视频准备好后应用）
  private pendingVideoConfig: {
    size?: { width: number; height: number } | Size;
    position?: { x: number; y: number; z?: number } | Vec3;
    scale?: number | Vec3;
  } | null = null;

  //----重写父类接口---------------------------------------
  onLoadCT() {
    Utils.parseNode(this.node, this._nodeTab);
    this.videoPlayer = this._nodeTab.videoPlayer.getComponent(VideoPlayer);
    if (!this.videoPlayer) {
      logger.error("SceneBgVideoLayer: video节点未找到或没有VideoPlayer组件");
    }
    this.initVideoEvents();
    SceneBgVideoLayer.handle = this;
  }
  openUIDataCT(data: any): void {
    this._data = data;
  }
  getVideoClone() {
    return this.videoPlayer;
  }
  /**初始化视频事件监听 */
  private initVideoEvents() {
    if (!this.videoPlayer) return;

    // 移除之前的事件监听器，避免重复绑定
    this.videoPlayer.node.off(
      VideoPlayer.EventType.READY_TO_PLAY,
      this.onVideoReadyToPlay,
      this
    );
    //this.videoPlayer.node.off(VideoPlayer.EventType.VIDEO_PLAYER_EVENT, this.onVideoEvent, this);

    // 添加新的事件监听
    this.videoPlayer.node.on(
      VideoPlayer.EventType.READY_TO_PLAY,
      this.onVideoReadyToPlay,
      this
    );
    // this.videoPlayer.node.on(VideoPlayer.EventType.VIDEO_PLAYER_EVENT, this.onVideoEvent, this);
  }

  //================== 公共 API 方法 ==================

  /**
   * 播放视频 - 统一的视频播放接口
   * @param path 视频路径
   * @param options 可选配置项
   * @param options.loop 是否循环播放，默认true
   * @param options.size 视频尺寸 {width, height}
   * @param options.position 视频位置 {x, y, z}
   * @param options.scale 视频缩放值
   * @param options.autoFill 是否自动填充到指定尺寸
   */
  playVideo(
    path: string,
    options?: {
      loop?: boolean;
      size?: { width: number; height: number } | Size;
      position?: { x: number; y: number; z?: number } | Vec3;
      scale?: number | Vec3;
    }
  ) {
    if (!this.videoPlayer) {
      logger.error("SceneBgVideoLayer: VideoPlayer未初始化");
      return;
    }

    // 默认参数
    const config = {
      loop: options?.loop ?? true,
      size: options?.size,
      position: options?.position,
    };

    // 先停止当前视频并清理状态
    if (this.isPlaying) {
      this.stop();
    }

    // 存储待处理的配置，在视频准备好后应用
    this.pendingVideoConfig = {
      size: config.size,
      position: config.position,
      scale: options?.scale,
    };

    const envData = DataManager.I.getDataById<EnvData>(DataId.Env);
    let newPath = envData.cdn + "/" + "Girls/" + path + ".mp4";
    // 加载远程资源
    ResManager.I.loadRemoteVideo(
      this.videoPlayer,
      newPath,
      (res: VideoClip) => {
        this.videoPlayer.loop = config.loop;

        // 设置锚点为中心，确保位置对齐
        const uiTransform = this.videoPlayer.node.getComponent(UITransform);
        if (uiTransform) {
          uiTransform.setAnchorPoint(0.5, 0.5);
          logger.log("SceneBgVideoLayer: 设置视频锚点为 (0.5, 0.5)");
        }

        // 立即开始播放，尺寸和位置将在 READY_TO_PLAY 事件中设置
        this.videoPlayer.play();
        this.isPlaying = true;
        logger.log(`SceneBgVideoLayer: 开始加载视频 ${path}, 配置:`, config);
      }
    );
  }

  /**
   * 暂停视频
   */
  pause() {
    if (this.videoPlayer && this.isPlaying) {
      this.videoPlayer.pause();
      logger.log("SceneBgVideoLayer: 暂停视频");
    }
  }

  /**
   * 继续播放视频
   */
  resume() {
    if (this.videoPlayer && !this.videoPlayer.isPlaying) {
      this.videoPlayer.play();
      logger.log("SceneBgVideoLayer: 继续播放视频");
    }
  }

  /**
   * 停止视频
   */
  stop() {
    if (this.videoPlayer) {
      this.videoPlayer.stop();
      this.clearVideoState();
      logger.log("SceneBgVideoLayer: 停止视频");
    }
  }

  /**
   * 设置视频缩放
   * @param scale 缩放值（数字或Vec3）
   */
  setVideoScale(scale: number | Vec3) {
    if (this.videoPlayer) {
      if (typeof scale === "number") {
        this.videoPlayer.node.setScale(new Vec3(scale, scale, 1));
        logger.log(`SceneBgVideoLayer: 设置视频缩放 ${scale}`);
      } else {
        this.videoPlayer.node.setScale(scale);
        logger.log(
          `SceneBgVideoLayer: 设置视频缩放 (${scale.x}, ${scale.y}, ${scale.z})`
        );
      }
    }
  }

  /**
   * 调整视频以填满指定区域
   * @param targetSize 目标尺寸
   * @param position 可选的位置
   */
  adjustToFillArea(targetSize: Size, position?: Vec3) {
    if (!this.videoPlayer) return;

    // 如果视频正在播放，直接应用配置
    if (this.isPlaying && this.videoPlayer.isPlaying) {
      this.applyVideoConfiguration({
        size: targetSize,
        position: position,
      });
    } else {
      // 如果视频还未准备好，存储配置等待应用
      this.pendingVideoConfig = {
        size: targetSize,
        position: position,
      };
      logger.log("SceneBgVideoLayer: 视频未准备好，配置已存储等待应用");
    }
  }

  /**
   * 清除视频状态和待处理配置
   */
  private clearVideoState() {
    this.isPlaying = false;
    this.pendingVideoConfig = null;
    this.currentVideoData = null;
  }

  //================== 内部辅助方法 ==================

  /**
   * 应用视频配置（位置、尺寸、缩放）
   * @param config 视频配置对象
   */
  private applyVideoConfiguration(config: {
    size?: { width: number; height: number } | Size;
    position?: { x: number; y: number; z?: number } | Vec3;
    scale?: number | Vec3;
  }) {
    if (!this.videoPlayer) return;

    const uiTransform = this.videoPlayer.node.getComponent(UITransform);
    if (!uiTransform) return;

    // 应用位置设置
    if (config.position) {
      const pos = config.position;
      let targetWorldPos: Vec3;
      if (pos instanceof Vec3) {
        targetWorldPos = pos;
      } else {
        targetWorldPos = new Vec3(pos.x, pos.y, pos.z || 0);
      }
      this.videoPlayer.node.setPosition(targetWorldPos);
      logger.log(
        `SceneBgVideoLayer: 设置视频位置 (${targetWorldPos.x}, ${targetWorldPos.y}, ${targetWorldPos.z})`
      );
    }

    // 应用尺寸和缩放设置
    if (config.size) {
      // 获取视频的原始尺寸（此时应该是准确的）
      const videoSize = uiTransform.contentSize;

      if (videoSize.width > 0 && videoSize.height > 0) {
        const targetWidth =
          config.size instanceof Size ? config.size.width : config.size.width;
        const targetHeight =
          config.size instanceof Size ? config.size.height : config.size.height;

        // 计算缩放比例（填满整个区域）
        const scaleX = targetWidth / videoSize.width;
        const scaleY = targetHeight / videoSize.height;
        const scale = Math.max(scaleX, scaleY);

        this.videoPlayer.node.setScale(new Vec3(scale, scale, 1));
        logger.log(
          `SceneBgVideoLayer: 设置视频缩放 ${scale} (原始尺寸: ${videoSize.width}x${videoSize.height}, 目标尺寸: ${targetWidth}x${targetHeight})`
        );
      } else {
        logger.warn("SceneBgVideoLayer: 无法获取视频尺寸，跳过缩放设置");
      }
    } else if (config.scale) {
      // 如果显式传入了 scale 参数，直接应用
      if (typeof config.scale === "number") {
        this.videoPlayer.node.setScale(new Vec3(config.scale, config.scale, 1));
        logger.log(`SceneBgVideoLayer: 设置显式缩放 ${config.scale}`);
      } else {
        this.videoPlayer.node.setScale(config.scale);
        logger.log(
          `SceneBgVideoLayer: 设置显式缩放 (${config.scale.x}, ${config.scale.y}, ${config.scale.z})`
        );
      }
    } else {
      // 没有指定尺寸或缩放，保持原始缩放
      this.videoPlayer.node.setScale(Vec3.ONE);
      logger.log("SceneBgVideoLayer: 保持默认缩放 (1, 1, 1)");
    }
  }

  //================== 事件回调 ==================

  private onVideoReadyToPlay = () => {
    logger.log("SceneBgVideoLayer: 视频准备完成");

    // 应用待处理的视频配置
    if (this.pendingVideoConfig) {
      this.applyVideoConfiguration(this.pendingVideoConfig);
      // 清空待处理配置
      this.pendingVideoConfig = null;
    }

    this.onVideoReady();
  };

  private onVideoEvent = (event: any, eventType: string) => {
    switch (eventType) {
      case "completed":
        logger.log("SceneBgVideoLayer: 视频播放完成");
        this.clearVideoState();
        this.onVideoEnd();
        break;
      case "error":
        logger.error("SceneBgVideoLayer: 视频播放错误");
        this.clearVideoState();
        this.onVideoError();
        break;
    }
  };

  /**
   * 视频准备完成回调（可重写）
   */
  protected onVideoReady() {
    // 由子类重写或外部监听
  }

  /**
   * 视频播放完成回调（可重写）
   */
  protected onVideoEnd() {
    // 由子类重写或外部监听
  }

  /**
   * 视频播放错误回调（可重写）
   */
  protected onVideoError() {
    // 由子类重写或外部监听
  }

  //================== 其他方法 ==================

  /**
   * 获取当前播放状态
   */
  getIsPlaying(): boolean {
    return this.isPlaying;
  }

  /**
   * 获取VideoPlayer组件引用
   */
  getVideoPlayer(): VideoPlayer | null {
    return this.videoPlayer;
  }

  /**
   * 销毁时清理资源
   */
  onDestroy() {
    if (this.videoPlayer) {
      this.videoPlayer.stop();
      this.videoPlayer.node.off(
        VideoPlayer.EventType.READY_TO_PLAY,
        this.onVideoReadyToPlay,
        this
      );
      //this.videoPlayer.node.off(VideoPlayer.EventType.VIDEO_PLAYER_EVENT, this.onVideoEvent, this);
    }
    this.clearVideoState();
    SceneBgVideoLayer.handle = null;
  }
}