import * as THREE from "three";

import FloorplanControls from "../controls/FloorplanControls.js";
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js";
import { TrackballControls } from "three/examples/jsm/controls/TrackballControls.js";
import Line from "../box/object/Line";
import LinePoints from "../box/object/LinePoints.js";
import Marker from "../box/object/marker.js";
import { LineMaterial } from "three/examples/jsm/lines/LineMaterial.js";

const convertScreenToNDC = function (event, domElement) {
  let x = (event.offsetX / domElement.clientWidth) * 2 - 1;
  let y = -(event.offsetY / domElement.clientHeight) * 2 + 1;
  return new THREE.Vector2(x, y);
};
export default class Player {
  constructor(scene) {
    this.scene = scene;
    this.orthCamera = scene.orthCamera;

    this.floorplanControls = null;
    this.raycaster = null;

    this.position = new THREE.Vector3();

    this.pointerdown = new THREE.Vector2();
    this.pointerup = new THREE.Vector2();
    this.pointer = new THREE.Vector2();
    this.markPosition = new THREE.Vector3();

    this.touchImg = null;
    this.activeEdge = null;
    this.drawLine = null;
    this.startObj = null;
    this.marker = null;
    this.allowDrawing = false;

    this.drawing = false;
    this.inited = false;
    this.renderLines = [];
    this.renderMarkers = [];
    this.activeEdges = [];
    this.matLine = null;
    this.lineColor = 0xe44d54;
    // 1是画线，2是标方向
    this.mode = 0;
    this.init();
  }

  setMode(mode) {
    this.mode = mode;
    if (mode === 1 || mode === 2) {
      this.reset();
      this.setEditMode();
    }
    if (mode === 0) {
      this.setFreeMode();
    }
    this.scene.emit("mode", this.mode);
  }

  // removeMarker() {
  //   if (this.marker) {
  //     this.scene.scene.remove(this.marker);
  //     this.marker = null;
  //   }
  // }
  setFreeMode() {
    this.floorplanControls.enablePan = true;
    this.floorplanControls.mouseButtons = {
      LEFT: THREE.MOUSE.PAN,
      MIDDLE: THREE.MOUSE.DOLLY,
      RIGHT: THREE.MOUSE.PAN,
    };
    this.reset();
  }

  setEditMode() {
    this.floorplanControls.enablePan = true;
    this.floorplanControls.mouseButtons = {
      LEFT: THREE.MOUSE.ROTATE,
      MIDDLE: THREE.MOUSE.DOLLY,
      RIGHT: THREE.MOUSE.PAN,
    };
  }

  init = () => {
    // //floorplanControls
    // this.floorplanControls = new FloorplanControls(
    //   this.orthCamera,
    //   this.scene.domElement,
    //   this
    // );
    this.floorplanControls = new OrbitControls(
      this.orthCamera,
      this.scene.domElement
    );

    this.floorplanControls.enablePan = true;
    // this.floorplanControls.target.set(0, 1, 0);
    // this.floorplanControls.rotateSpeed = 0.5;
    // this.floorplanControls.panSpeed = 0.75

    this.floorplanControls.maxDistance = 100;
    this.floorplanControls.minDistance = 3.5;
    this.floorplanControls.maxZoom = 500;
    this.floorplanControls.minZoom = 100;

    // this.floorplanControls.mouseButtons = {
    //   LEFT: THREE.MOUSE.PAN,
    //   MIDDLE: THREE.MOUSE.DOLLY,
    //   RIGHT: THREE.MOUSE.PAN
    // }
    this.setMode(0);
    this.floorplanControls.enableRotate = false;
    this.raycaster = new THREE.Raycaster();
    this.onBindEvent();
    this.inited = true;
    this.matLine = new LineMaterial({
      color: this.lineColor,
      linewidth: 3, // in world units with size attenuation, pixels otherwise
      dashed: false,
      alphaToCoverage: true,
    });
    this.matLine.resolution = new THREE.Vector2(
      this.scene.width,
      this.scene.height
    );
  };

  onPointerMove = (e) => {
    if (!this.drawing) return;
    this.pointermove = convertScreenToNDC(e, this.scene.domElement);
    if (this.mode === 1) {
      this.raycaster.setFromCamera(this.pointermove, this.orthCamera);
      let intersectArr = this.scene.boxManager.imgList;
      // if(this.startObj) {
      //   let i = intersectArr.indexOf(this.startObj)
      //   intersectArr.splice(i, 1)
      // }
      const intersects = this.raycaster.intersectObjects(intersectArr, false);
      if (intersects[0] && intersects[0].object !== this.startObj) {
        this.touchImg = intersects[0];
        this.setActiveLine(this.touchImg);
      }
    }
    if (this.mode === 2) {
      if (this.marker) {
        let pos = new THREE.Vector3(this.pointermove.x, this.pointermove.y, -1);
        pos.unproject(this.orthCamera);
        pos.y = 5;
        // console.log("pos", pos);
        this.marker.position.copy(pos);
      }
    }
  };

  onPointerDown = (e) => {
    console.log("start draw");
    this.pointerdown = convertScreenToNDC(e, this.scene.domElement);
    if (this.mode === 1) {
      this.raycaster.setFromCamera(this.pointerdown, this.orthCamera);
      let intersectArr = this.scene.boxManager.imgList;
      const intersects = this.raycaster.intersectObjects(intersectArr, false);
      console.log("intersects", intersects);
      if (intersects[0]) {
        this.startObj = intersects[0].object;
        this.drawing = true;
      } else {
        this.startObj = null;
        this.drawing = false;
      }
    }

    if (this.mode === 2) {
      if (!this.marker) {
        let pos = new THREE.Vector3(this.pointerdown.x, this.pointerdown.y, -1);
        pos.unproject(this.orthCamera);
        pos.y = 5;
        this.marker = new Marker(pos);
        this.scene.scene.add(this.marker);
        this.drawing = true;
      } else {
        // this.drawing = false;
        this.raycaster.setFromCamera(this.pointerdown, this.orthCamera);
        let intersectArr = this.scene.boxManager.imgList;
        const intersects = this.raycaster.intersectObjects(intersectArr, false);
        console.log("intersects", intersects);
        if (intersects[0]) {
          // this.drawing = false;
          const imageId = intersects[0].object.userData;

          let lasPos = new THREE.Vector3(
            this.pointerdown.x,
            this.pointerdown.y,
            -1
          );
          lasPos.unproject(this.orthCamera);
          lasPos.y = 5;
          const marker = new Marker(lasPos);

          const activeMarkeritem = {
            id: imageId,
            point: lasPos.toArray(),
          };
          const exist = this.renderMarkers.find((item) => item.id === imageId);

          if (!exist) {
            this.scene.scene.add(marker);
            this.renderMarkers.push(activeMarkeritem);
            this.scene.scene.remove(this.marker);
            this.marker = null;
          } else {
            this.scene.emit("markerExist");
          }

          console.log("activeMarkeritem", activeMarkeritem);
        }
      }
    }
    // this.floorplanControls.enabled = false;
  };
  onPointerUp = (e) => {
    this.pointerup = convertScreenToNDC(e, this.scene.domElement);
    console.log("onPointerUp", this.pointerup);

    if (this.mode === 1) {
      this.drawing = false;
      this.floorplanControls.enabled = true;
      this.startObj = null;
      if (this.drawLine) {
        const points = this.drawLine.userData.points;
        const dir = this.drawLine.userData.dir;
        const finishLine = new LinePoints(points, 0, this.matLine);
        this.renderLines.push(points);
        this.scene.scene.add(finishLine);
        const imageId = this.touchImg.object.userData;
        const activeLineItem = {
          id: imageId,
          dir: [dir],
        };
        console.log("this.touchImg", activeLineItem, points);
        this.insertActiveEdge(activeLineItem);
        this.drawLine = null;
      }
    }
    if (this.mode === 2) {
      // this.drawing = false;
    }
    this.syncDrawData();
  };

  Listener = {
    onPointerDown: this.onPointerDown.bind(this),
    onPointerMove: this.onPointerMove.bind(this),
    onPointerUp: this.onPointerUp.bind(this),
  };

  onBindEvent = () => {
    this.scene.domElement.addEventListener(
      "pointerdown",
      this.Listener.onPointerDown
    );
    this.scene.domElement.addEventListener(
      "pointermove",
      this.Listener.onPointerMove,
      false
    );
    this.scene.domElement.addEventListener(
      "pointerup",
      this.Listener.onPointerUp
    );
  };
  unbindEvent = () => {
    this.scene.domElement.removeEventListener(
      "pointerdown",
      this.Listener.onPointerDown
    );
    this.scene.domElement.removeEventListener(
      "pointermove",
      this.Listener.onPointerMove
    );
    this.scene.domElement.removeEventListener(
      "pointerup",
      this.Listener.onPointerUp
    );
  };

  buildLine = () => {
    if (this.drawLine) {
      this.drawLine.removeFromParent();
    }
    let s = new THREE.Vector3(this.pointerdown.x, this.pointerdown.y, -1);
    let e = new THREE.Vector3(this.pointermove.x, this.pointermove.y, -1);
    s.unproject(this.orthCamera);
    e.unproject(this.orthCamera);
    s.y = 5;
    e.y = 5;
    const matLine = new LineMaterial({
      color: this.lineColor,
      linewidth: 3, // in world units with size attenuation, pixels otherwise
      dashed: false,
      alphaToCoverage: true,
    });
    matLine.resolution = new THREE.Vector2(this.scene.width, this.scene.height);
    this.drawLine = new Line(s, e, this.activeEdge, matLine);
    this.scene.scene.add(this.drawLine);
  };

  setActiveLine = (obj) => {
    function getTouchLine(x, y) {
      // [0 - 1]
      x -= 0.5;
      y -= 0.5;
      // console.log(x, y);
      if (x >= 0 && y >= 0) {
        if (x > y) {
          return 3;
        } else {
          return 0;
        }
      } else if (x >= 0 && y <= 0) {
        if (x > Math.abs(y)) {
          return 3;
        } else {
          return 2;
        }
      } else if (x <= 0 && y >= 0) {
        if (Math.abs(x) > y) {
          return 1;
        } else {
          return 0;
        }
      } else if (x <= 0 && y <= 0) {
        if (-x > -y) {
          return 1;
        } else {
          return 2;
        }
      }
    }

    if (this.activeEdge) {
      this.activeEdge.visible = false;
      this.activeEdge = null;
    }

    let num = getTouchLine(obj.uv.x, obj.uv.y);
    this.activeEdge = obj.object.touchLines.getObjectByName(num);
    this.activeEdge.visible = true;
    this.buildLine();
  };

  insertActiveEdge(item) {
    const exist = this.activeEdges.find((s) => item.id === s.id);
    if (exist) {
      exist.dir = [...new Set([...exist.dir, ...item.dir])];
    } else {
      this.activeEdges.push(item);
    }
  }

  insertActiveMarker(item) {
    const exist = this.activeEdges.find((s) => item.id === s.id);
    if (exist) {
      exist.dir = [...new Set([...exist.dir, ...item.dir])];
    } else {
      this.activeEdges.push(item);
    }
  }
  showAllActiveEdges() {
    if (this.inited) {
      let imgList = this.scene.boxManager.imgList;
      this.activeEdges.forEach((edge) => {
        const exist = imgList.find((item) => item.userData === edge.id);
        // console.log("exist", exist);
        if (exist) {
          edge.dir.forEach((dir) => {
            exist.touchLines.children[dir].visible = true;
          });
        }
      });
    }
  }
  getDrawData() {
    let data;
    if (this.scene.sceneType === 1) {
      data = {
        hor_lines: this.renderLines,
        activeEdges: this.activeEdges,
        vir_lines: [],
        hor_markers: this.renderMarkers,
        vir_markers: [],
      };
    } else {
      data = {
        hor_lines: [],
        vir_lines: this.renderLines,
        activeEdges: this.activeEdges,
        vir_markers: this.renderMarkers,
        hor_markers: [],
      };
    }

    // console.log("sceneType", this.scene.sceneType);
    return data;
  }

  syncDrawData() {
    const data = this.getDrawData();
    this.scene.emit("data", data);
  }
  load(type, data) {
    if (type === 1) {
      console.log("data1", data);
      const { activeEdges, hor_lines, hor_markers } = data;
      activeEdges && (this.activeEdges = activeEdges);
      if (hor_lines && Array.isArray(hor_lines)) {
        this.renderLines = hor_lines;
        hor_lines.forEach((line) => {
          const finishLine = new LinePoints(line, 0, this.matLine);
          this.scene.scene.add(finishLine);
        });
      }
      if (hor_markers && Array.isArray(hor_markers)) {
        this.renderMarkers = hor_markers;
        hor_markers.forEach((pos) => {
          console.log("pos");
          const p = new THREE.Vector3().fromArray(pos.point);
          const marker = new Marker(p);
          this.scene.scene.add(marker);
        });
      }
    }

    if (type === 2) {
      const { activeEdges, vir_lines, vir_markers } = data;
      activeEdges && (this.activeEdges = activeEdges);
      if (vir_lines && Array.isArray(vir_lines)) {
        this.renderLines = vir_lines;
        vir_lines.forEach((line) => {
          const finishLine = new LinePoints(line, 0, this.matLine);
          this.scene.scene.add(finishLine);
        });
      }
      if (vir_markers && Array.isArray(vir_markers)) {
        this.renderMarkers = vir_markers;
        vir_markers.forEach((pos) => {
          const p = new THREE.Vector3().fromArray(pos.point);
          const marker = new Marker(p);
          this.scene.scene.add(marker);
        });
      }
    }
  }
  reset() {
    if (this.marker) {
      this.scene.scene.remove(this.marker);
      this.marker = null;
    }
    if (this.drawLine) {
      this.scene.scene.remove(this.drawLine);
      this.drawLine = null;
    }
    if (this.touchImg) {
      this.touchImg = null;
    }
    if (this.activeEdge) {
      this.activeEdge = null;
    }
    this.drawing = false;
  }

  update = () => {
    if (this.floorplanControls.enabled) {
      this.floorplanControls && this.floorplanControls.update();
      this.scene.boxManager && this.showAllActiveEdges();
    }
  };
}