import {
  _decorator,
  Node,
  Camera,
  Component,
  director,
  game,
  instantiate,
  Prefab,
  RenderTexture,
  view,
  resources,
  macro,
} from "cc";
import Utils from "../Common/Utils";
import GameRootUI from "../Common/GameRootUI";
import ResManager from "./ResManager";
import { CommonConfig } from "../Config/CommonConfig";

const { ccclass, property } = _decorator;

@ccclass("ViewManager")
export class ViewManager extends Component {
  private static _I: ViewManager = null;
  public static get I(): ViewManager {
    if (!ViewManager._I) {
      ViewManager._I = new ViewManager();
    }
    return ViewManager._I;
  }

  private m_viewList = [];
  private m_viewListData = {};

  start() {}

  update(deltaTime: number) {}

  private openIdx = 0;
  private openViewByPrefab(
    err,
    i_prefab: Prefab | Node,
    i_openInfo,
    callBack = null,
    path,
    type: string = ""
  ) {
    if (err) {
      Utils.Log("打开界面时加载资源出错:" + err, path);
      return;
    }
    let t_node: any = instantiate(i_prefab);
    if (!t_node.isValid) return;

    //界面已打开
    for (let i = this.m_viewList.length - 1; i >= 0; i--) {
      let t_view: Node = this.m_viewList[i];
      if (t_view) {
        if (t_view.isValid && t_node.name == t_view.name) {
          t_node.setSiblingIndex(999);
          Utils.Log("已经打开的相同的界面：" + t_node.name);
          return;
        }
      }
    }

    //截屏纹理
    if (i_openInfo && i_openInfo.blueBg === true) {
      i_openInfo.screenShotTex = this.getScreenShot();
    }

    let viewSP = t_node.getComponent(t_node.name);
    if (!viewSP) {
      for (let index = 0; index < t_node["_components"].length; index++) {
        const element = t_node["_components"][index];
        if (element.isScriptComponent) {
          viewSP = element;
          break;
        }
      }
    }

    this.m_viewList.push(t_node);
    this.m_viewListData[t_node.name] = {
      path: path,
      data: i_openInfo,
      sort: this.openIdx++,
      name: t_node.name,
      uuid: t_node["_prefab"]["asset"]["_uuid"],
    };
    viewSP && viewSP.openUIData && viewSP.openUIData(i_openInfo);
    callBack && callBack(t_node, i_openInfo);
    if (type == "") {
      GameRootUI.I.AddUIToLayer(
        t_node,
        CommonConfig.UILayerGroup.Layer_ui1,
        this.m_viewList.length
      );
    } else if (type == "top") {
      // t_node.sType = "top"
      GameRootUI.I.AddUIToLayer(t_node, CommonConfig.UILayerGroup.Layer_top);
    } else if (type == "tips") {
      GameRootUI.I.AddUIToLayer(t_node, CommonConfig.UILayerGroup.Layer_tips);
    }
  }

  //检查是否有相同的View
  private checkSameView(i_node: Node, path) {
    // let t_com = i_node.getComponent('li_BaseView');
    // if (t_com) {
    //     if (t_com.name == 'li_BaseView') return true;
    //     for (let i = this.m_viewList.length - 1; i >= 0; i--) {
    //         let t_view: Node = this.m_viewList[i];
    //         if (t_view) {
    //             if (t_view.isValid && t_com.node.name == t_view.name) {
    //                 i_node.setSiblingIndex(999)
    //                 return false;
    //             }
    //         }
    //     }
    //     i_node['path'] = path;
    //     this.m_viewList.push(i_node);
    //     return true;
    // }

    return false;
  }

  //获取截屏纹理
  private getScreenShot(): RenderTexture {
    // let texture = new RenderTexture();
    // let winSize = view.getViewportRect()
    // let winSize1 = view.getVisibleSize()
    // texture.reset({
    //     width: winSize.width,
    //     height: winSize.height,
    // });

    // let camera = director.getScene().getComponentInChildren(Camera);
    // let oldTargetTexture = camera.targetTexture
    // camera.targetTexture = texture;
    // camera.render();
    // camera.targetTexture = oldTargetTexture

    // return texture
    return null;
  }

  private getViewIndex(i_view: Node) {
    for (let i = this.m_viewList.length - 1; i >= 0; i--) {
      let t_view = this.m_viewList[i];
      if (t_view == i_view) {
        return i;
      }
    }

    return -1;
  }

  /**打开resources窗体 */
  openMainView(
    i_prefab: string | Prefab,
    i_openData?,
    callBack = null,
    type: string = ""
  ) {
    if (i_prefab instanceof Prefab) {
      this.openViewByPrefab(
        null,
        i_prefab,
        i_openData,
        callBack,
        i_prefab,
        type
      );
    } else {
      resources.load(i_prefab, (err, $prefab: Prefab) => {
        this.openViewByPrefab(
          err,
          $prefab,
          i_openData,
          callBack,
          i_prefab,
          type
        );
      });
    }
  }
  /**打开bundle窗体 */
  openBundlesView(
    i_prefab: string | Prefab,
    i_openData?,
    callBack = null,
    type: string = ""
  ) {
    if (i_prefab instanceof Prefab) {
      this.openViewByPrefab(
        null,
        i_prefab,
        i_openData,
        callBack,
        i_prefab,
        type
      );
    } else {
      console.log("打开界面：", i_prefab);
      ResManager.I.getPrefab(
        i_prefab,
        (pb: Node) => {
          this.openViewByPrefab(null, pb, i_openData, callBack, i_prefab, type);
        },
        null
      );
    }
  }
  /**打开bundle弹窗 */
  openBundlesPopupView(
    i_prefab: string | Prefab,
    i_openData?,
    callBack = null
  ) {
    if (i_prefab instanceof Prefab) {
      this.openViewByPrefab(
        null,
        i_prefab,
        i_openData,
        callBack,
        i_prefab,
        "tips"
      );
    } else {
      console.log("打开界面：", i_prefab);
      ResManager.I.getPrefab(
        i_prefab,
        (pb: Node) => {
          this.openViewByPrefab(
            null,
            pb,
            i_openData,
            callBack,
            i_prefab,
            "tips"
          );
        },
        null
      );
    }
  }

  /**关闭窗体 */
  closeView(i_view: Node) {
    let closeUIName = null;
    let t_index = this.getViewIndex(i_view);
    if (t_index > -1) {
      let t_view = this.m_viewList[t_index];
      if (t_view) {
        closeUIName = t_view.name;
        delete this.m_viewListData[t_view.name];
        t_view.destroy();
        t_view.removeFromParent();
      }
      this.m_viewList.splice(t_index, 1); //删除列表元素  参数1是指定位置，参数2是删除元素个数
    } else {
      if (!this.m_viewList.length) {
        i_view.destroy();
      }
      Utils.Log("试图关闭一个队列中不存在的界面:", i_view.name);
    }
  }

  /**关闭所有窗体 */
  closeAllView(isR = false) {
    for (let i = this.m_viewList.length - 1; i >= 0; i--) {
      let t_view = this.m_viewList[i];
      if (t_view) {
        delete this.m_viewListData[t_view.name];
        t_view.destroy();
        t_view.removeFromParent();
      }
    }

    this.m_viewList = [];
    this.m_viewListData = {};
    this.openIdx = 0;
  }

  //是否在主界面，没有打开任何其他界面。主界面是在打开场景时直接创建的，不走这里的打开接口
  isNotOpenAnyUI() {
    if (this.m_viewList && this.m_viewList.length > 0) {
      return false;
    }
    return true;
  }
}