//////////  Three and React Three Fiber Imports  //////////

import * as THREE from "three";
import { useEffect, useRef, useState } from "react";
import { useThree, useFrame } from "@react-three/fiber";

//////////  Component Imports  //////////

import DistanceText from "../../builder/geomentries/lines/distanceText";
import ReferenceDistanceText from "../../builder/geomentries/lines/referenceDistanceText";

//////////  Assests Imports  //////////

import arch from "../../../assets/gltf-glb/arch.glb";
import door from "../../../assets/gltf-glb/door.glb";
import Window from "../../../assets/gltf-glb/window.glb";

//////////  Zustand State Imports  //////////

import {
  useToggleView,
  useDeletePointOrLine,
  useMovePoint,
  useActiveLayer,
  useSocketStore,
  useWallVisibility,
  useRoofVisibility,
  useShadows,
  useUpdateScene,
  useWalls,
  useToolMode
} from "../../../store/store";

//////////  3D Function Imports  //////////

import loadWalls from "../../builder/geomentries/walls/loadWalls";

import * as Types from "../../../types/world/worldTypes";

import SocketResponses from "../../collaboration/socketResponses.dev";
import FloorItemsGroup from "../../builder/groups/floorItemsGroup";
import FloorPlanGroup from "../../builder/groups/floorPlanGroup";
import FloorGroup from "../../builder/groups/floorGroup";
import FloorGroupAilse from "../../builder/groups/floorGroupAisle";
import Draw from "../../builder/functions/draw";
import WallsAndWallItems from "../../builder/groups/wallsAndWallItems";
import Ground from "../environment/ground";
// import ZoneGroup from "../groups/zoneGroup1";
import { findEnvironment } from "../../../services/factoryBuilder/environment/findEnvironment";
import Layer2DVisibility from "../../builder/geomentries/layers/layer2DVisibility";
import DrieHtmlTemp from "../mqttTemp/drieHtmlTemp";
import ZoneGroup from "../../builder/groups/zoneGroup";

export default function World() {
  const state = useThree<Types.ThreeState>();                           // Importing the state from the useThree hook, which contains the scene, camera, and other Three.js elements.
  const csg = useRef();                                                 // Reference for CSG object, used for 3D modeling.
  const CSGGroup = useRef() as Types.RefMesh;                           // Reference to a group of CSG objects.
  const scene = useRef() as Types.RefScene;                             // Reference to the scene.
  const camera = useRef() as Types.RefCamera;                           // Reference to the camera object.
  const controls = useRef<any>();                                       // Reference to the controls object.
  const raycaster = useRef() as Types.RefRaycaster;                     // Reference for raycaster used for detecting objects being pointed at in the scene.
  const dragPointControls = useRef() as Types.RefDragControl;          // Reference for drag point controls, an array for drag control.

  // Assigning the scene and camera from the Three.js state to the references.

  scene.current = state.scene;
  camera.current = state.camera;
  controls.current = state.controls;
  raycaster.current = state.raycaster;

  const plane = useRef<THREE.Mesh>(null);                               // Reference for a plane object for raycaster reference.
  const grid = useRef() as any;                                         // Reference for a grid object for raycaster reference.
  const snappedPoint = useRef() as Types.RefVector3;                    // Reference for storing a snapped point at the (end = isSnapped) and (start = ispreSnapped) of the line.
  const isSnapped = useRef(false) as Types.RefBoolean;                  // Boolean reference to indicate if an object is snapped at the (end).
  const anglesnappedPoint = useRef() as Types.RefVector3;               // Reference for storing an angle-snapped point when the line is in 90 degree etc...
  const isAngleSnapped = useRef(false) as Types.RefBoolean;             // Boolean to indicate if angle snapping is active.
  const isSnappedUUID = useRef() as Types.RefString;                    // UUID reference to identify the snapped point.
  const ispreSnapped = useRef(false) as Types.RefBoolean;               // Boolean reference to indicate if an object is snapped at the (start).
  const tempLoader = useRef() as Types.RefMesh;                         // Reference for a temporary loader for the floor items.
  const isTempLoader = useRef() as Types.RefBoolean;                    // Reference to check if a temporary loader is active.
  const Tube = useRef() as Types.RefTubeGeometry;                       // Reference for tubes used for reference line creation and updation.
  const line = useRef([]) as Types.RefLine;                             // Reference for line which stores the current line that is being drawn.
  const lines = useRef([]) as Types.RefLines;                           // Reference for lines which stores all the lines that are ever drawn.
  const onlyFloorline = useRef<Types.OnlyFloorLine>([]);                // Reference for floor lines which does not have walls or roof and have only floor used to store the current line that is being drawn.
  const onlyFloorlines = useRef<Types.OnlyFloorLines>([]);              // Reference for all the floor lines that are ever drawn.
  const ReferenceLineMesh = useRef() as Types.RefMesh;                  // Reference for storing the mesh of the reference line for moving it during draw.
  const LineCreated = useRef(false) as Types.RefBoolean;                // Boolean to track whether the reference line is created or not.
  const referencePole = useRef() as Types.RefMesh;                      // Reference for a pole that is used as the reference for the user to show where it is placed.
  const itemsGroup = useRef() as Types.RefGroup;                        // Reference to the THREE.Group that has the floor items (Gltf).
  const floorGroup = useRef() as Types.RefGroup;                        // Reference to the THREE.Group that has the roofs and the floors.
  const AttachedObject = useRef() as Types.RefMesh;                     // Reference for an object that is attached using dbl click for transform controls rotation.
  const floorPlanGroup = useRef() as Types.RefGroup;                    // Reference for a THREE.Group that has the lines group and the points group.
  const floorPlanGroupLine = useRef() as Types.RefGroup;                // Reference for a THREE.Group that has the lines that are drawn.
  const floorPlanGroupPoint = useRef() as Types.RefGroup;              // Reference for a THREE.Group that has the points that are created.
  const floorGroupAisle = useRef() as Types.RefGroup;
  const zoneGroup = useRef() as Types.RefGroup;
  const currentLayerPoint = useRef([]) as Types.RefMeshArray;          // Reference for points that re in the current layer used to update the points in drag controls.
  const hoveredDeletablePoint = useRef() as Types.RefMesh;              // Reference for the currently hovered point that can be deleted.
  const hoveredDeletableLine = useRef() as Types.RefMesh;               // Reference for the currently hovered line that can be deleted.
  const hoveredDeletableFloorItem = useRef() as Types.RefMesh;          // Reference for the currently hovered floor item that can be deleted.
  const hoveredDeletableWallItem = useRef() as Types.RefMesh;           // Reference for the currently hovered wall item that can be deleted.
  const hoveredDeletablePillar = useRef() as Types.RefMesh;             // Reference for the currently hovered pillar that can be deleted.
  const currentWallItem = useRef() as Types.RefMesh;                    // Reference for the currently selected wall item that can be scaled, dragged etc...

  const cursorPosition = new THREE.Vector3();                           // 3D vector for storing the cursor position.

  const [selectedItemsIndex, setSelectedItemsIndex] = useState<Types.Number | null>(null);      // State for tracking the index of the selected item.
  const { activeLayer, setActiveLayer } = useActiveLayer();                                     // State that changes based on which layer the user chooses in Layers.jsx.
  const { toggleView, setToggleView } = useToggleView();                                        // State for toggling between 2D and 3D.
  const { toolMode, setToolMode } = useToolMode();
  const { movePoint, setMovePoint } = useMovePoint();                                              // State that stores a boolean which represents whether the move mode is active or not.
  const { deletePointOrLine, setDeletePointOrLine } = useDeletePointOrLine();
  const { socket } = useSocketStore();
  const { roofVisibility, setRoofVisibility } = useRoofVisibility();
  const { wallVisibility, setWallVisibility } = useWallVisibility();
  const { shadows, setShadows } = useShadows();
  const { updateScene, setUpdateScene } = useUpdateScene();
  const { walls, setWalls } = useWalls();
  const [RefTextupdate, setRefTextUpdate] = useState(-1000);


  // const loader = new GLTFLoader();
  // const dracoLoader = new DRACOLoader();

  // dracoLoader.setDecoderPath('https://cdn.jsdelivr.net/npm/three@0.160.0/examples/jsm/libs/draco/gltf/');
  // loader.setDRACOLoader(dracoLoader);

  //////////  Assest Configuration Values  //////////

  const AssetConfigurations: Types.AssetConfigurations = {
    arch: {
      modelUrl: arch,
      scale: [0.75, 0.75, 0.75],
      csgscale: [2, 4, 0.5],
      csgposition: [0, 2, 0],
      positionY: () => 0,
      type: "Fixed-Move",
    },
    door: {
      modelUrl: door,
      scale: [0.75, 0.75, 0.75],
      csgscale: [2, 4, 0.5],
      csgposition: [0, 2, 0],
      positionY: () => 0,
      type: "Fixed-Move",
    },
    window: {
      modelUrl: Window,
      scale: [0.75, 0.75, 0.75],
      csgscale: [5, 3, 0.5],
      csgposition: [0, 1.5, 0],
      positionY: (intersectionPoint) => intersectionPoint.point.y,
      type: "Free-Move",
    },
  };

  //////////  All Toggle's //////////

  useEffect(() => {
    setRefTextUpdate((prevUpdate) => prevUpdate - 1);
    if (dragPointControls.current) {
      dragPointControls.current.enabled = false;
    }
    if (toggleView) {
      Layer2DVisibility(activeLayer, floorPlanGroup, floorPlanGroupLine, floorPlanGroupPoint, currentLayerPoint, dragPointControls);
    } else {
      setToolMode(null);
      setDeletePointOrLine(false);
      setMovePoint(false);
      loadWalls(lines, setWalls);
      setUpdateScene(true);
      line.current = [];
    }
  }, [toggleView]);

  useEffect(() => {
    THREE.Cache.clear();
    THREE.Cache.enabled = true;
  }, []);

  useEffect(() => {
    const email = localStorage.getItem('email')
    const organization = (email!.split("@")[1]).split(".")[0];

    async function fetchVisibility() {
      const visibility = await findEnvironment(organization, localStorage.getItem('userId')!);
      if (visibility) {
        setRoofVisibility(visibility.roofVisibility);
        setWallVisibility(visibility.wallVisibility);
        setShadows(visibility.shadowVisibility);
      }
    }
    fetchVisibility();
  }, [])

  //////////  UseFrame is Here  //////////

  useFrame(() => {
    if (toolMode) {
      Draw(state, plane, cursorPosition, floorPlanGroupPoint, floorPlanGroupLine, snappedPoint, isSnapped, isSnappedUUID, line, lines, ispreSnapped, floorPlanGroup, ReferenceLineMesh, LineCreated, setRefTextUpdate, Tube, anglesnappedPoint, isAngleSnapped, toolMode)
    }
  });

  //////////  Return  //////////

  return (
    <>
      <Ground grid={grid} plane={plane} />

      <DistanceText key={toggleView} />

      <ReferenceDistanceText
        key={RefTextupdate}
        line={ReferenceLineMesh.current}
      />

      <SocketResponses
        floorPlanGroup={floorPlanGroup}
        lines={lines}
        floorGroup={floorGroup}
        floorGroupAisle={floorGroupAisle}
        scene={scene}
        onlyFloorlines={onlyFloorlines}
        AssetConfigurations={AssetConfigurations}
        itemsGroup={itemsGroup}
        isTempLoader={isTempLoader}
        tempLoader={tempLoader}
        currentLayerPoint={currentLayerPoint}
        floorPlanGroupPoint={floorPlanGroupPoint}
        floorPlanGroupLine={floorPlanGroupLine}
        zoneGroup={zoneGroup}
        dragPointControls={dragPointControls}
      />

      <WallsAndWallItems
        CSGGroup={CSGGroup}
        AssetConfigurations={AssetConfigurations}
        setSelectedItemsIndex={setSelectedItemsIndex}
        selectedItemsIndex={selectedItemsIndex}
        currentWallItem={currentWallItem}
        csg={csg}
        lines={lines}
        hoveredDeletableWallItem={hoveredDeletableWallItem}
      />

      <FloorItemsGroup
        itemsGroup={itemsGroup}
        hoveredDeletableFloorItem={hoveredDeletableFloorItem}
        AttachedObject={AttachedObject}
        floorGroup={floorGroup}
        tempLoader={tempLoader}
        isTempLoader={isTempLoader}
        plane={plane}
      />

      <FloorGroup
        floorGroup={floorGroup}
        lines={lines}
        referencePole={referencePole}
        hoveredDeletablePillar={hoveredDeletablePillar}
      />

      <FloorPlanGroup
        floorPlanGroup={floorPlanGroup}
        floorPlanGroupLine={floorPlanGroupLine}
        floorPlanGroupPoint={floorPlanGroupPoint}
        floorGroup={floorGroup}
        currentLayerPoint={currentLayerPoint}
        dragPointControls={dragPointControls}
        hoveredDeletablePoint={hoveredDeletablePoint}
        hoveredDeletableLine={hoveredDeletableLine}
        plane={plane}
        line={line}
        lines={lines}
        onlyFloorline={onlyFloorline}
        onlyFloorlines={onlyFloorlines}
        ReferenceLineMesh={ReferenceLineMesh}
        LineCreated={LineCreated}
        isSnapped={isSnapped}
        ispreSnapped={ispreSnapped}
        snappedPoint={snappedPoint}
        isSnappedUUID={isSnappedUUID}
        isAngleSnapped={isAngleSnapped}
        anglesnappedPoint={anglesnappedPoint}
      />

      {/* <ZoneGroup
        zoneGroup={zoneGroup}
        plane={plane}
        floorPlanGroupLine={floorPlanGroupLine}
        floorPlanGroupPoint={floorPlanGroupPoint}
        line={line}
        lines={lines}
        currentLayerPoint={currentLayerPoint}
        dragPointControls={dragPointControls}
        floorPlanGroup={floorPlanGroup}
        ReferenceLineMesh={ReferenceLineMesh}
        LineCreated={LineCreated}
        isSnapped={isSnapped}
        ispreSnapped={ispreSnapped}
        snappedPoint={snappedPoint}
        isSnappedUUID={isSnappedUUID}
        isAngleSnapped={isAngleSnapped}
        anglesnappedPoint={anglesnappedPoint}
      /> */}


      <ZoneGroup />

      <FloorGroupAilse
        floorGroupAisle={floorGroupAisle}
        plane={plane}
        floorPlanGroupLine={floorPlanGroupLine}
        floorPlanGroupPoint={floorPlanGroupPoint}
        line={line}
        lines={lines}
        currentLayerPoint={currentLayerPoint}
        dragPointControls={dragPointControls}
        floorPlanGroup={floorPlanGroup}
        ReferenceLineMesh={ReferenceLineMesh}
        LineCreated={LineCreated}
        isSnapped={isSnapped}
        ispreSnapped={ispreSnapped}
        snappedPoint={snappedPoint}
        isSnappedUUID={isSnappedUUID}
        isAngleSnapped={isAngleSnapped}
        anglesnappedPoint={anglesnappedPoint}
      />

      <DrieHtmlTemp
        itemsGroup={itemsGroup}
      />

    </>
  );
}