import * as THREE from "three";
import { useEffect, useMemo, useRef, useState } from "react";
import { SelectionBox } from "three/examples/jsm/interactive/SelectionBox";
import { SelectionHelper } from "./selectionHelper";
import { useFrame, useThree } from "@react-three/fiber";
import { useFloorItems, useSelectedAssets, useSocketStore, useToggleView } from "../../../../store/store";
import BoundingBox from "./boundingBoxHelper";
import { toast } from "react-toastify";
// import { deleteFloorItem } from '../../../../services/factoryBuilder/assest/floorAsset/deleteFloorItemApi';
import * as Types from "../../../../types/world/worldTypes";

import DuplicationControls from "./duplicationControls";
import CopyPasteControls from "./copyPasteControls";
import MoveControls from "./moveControls";
import RotateControls from "./rotateControls";
import useModuleStore from "../../../../store/useModuleStore";

const SelectionControls: React.FC = () => {
    const { camera, controls, gl, scene, pointer } = useThree();
    const itemsGroupRef = useRef<THREE.Group | undefined>(undefined);
    const selectionGroup = useRef() as Types.RefGroup;
    const { toggleView } = useToggleView();
    const { selectedAssets, setSelectedAssets } = useSelectedAssets();
    const [movedObjects, setMovedObjects] = useState<THREE.Object3D[]>([]);
    const [rotatedObjects, setRotatedObjects] = useState<THREE.Object3D[]>([]);
    const [copiedObjects, setCopiedObjects] = useState<THREE.Object3D[]>([]);
    const [pastedObjects, setpastedObjects] = useState<THREE.Object3D[]>([]);
    const [duplicatedObjects, setDuplicatedObjects] = useState<THREE.Object3D[]>([]);
    const boundingBoxRef = useRef<THREE.Mesh>();
    const { floorItems, setFloorItems } = useFloorItems();
    const { activeModule } = useModuleStore();
    const { socket } = useSocketStore();
    const selectionBox = useMemo(() => new SelectionBox(camera, scene), [camera, scene]);

    useEffect(() => {
        if (!camera || !scene || toggleView) return;

        const canvasElement = gl.domElement;
        canvasElement.tabIndex = 0;

        const itemsGroup: any = scene.getObjectByName("itemsGroup");
        itemsGroupRef.current = itemsGroup;

        let isSelecting = false;
        let isCtrlSelecting = false;

        const helper = new SelectionHelper(gl);

        if (!itemsGroup) {
            toast.warn("itemsGroup not found in the scene.");
            return;
        }

        const onPointerDown = (event: PointerEvent) => {
            if (event.button !== 0) return
            isSelecting = false;
            isCtrlSelecting = event.ctrlKey;
            if (event.ctrlKey && duplicatedObjects.length === 0) {
                if (controls) (controls as any).enabled = false;
                selectionBox.startPoint.set(pointer.x, pointer.y, 0);
            }
        };

        const onPointerMove = (event: PointerEvent) => {
            isSelecting = true;
            if (helper.isDown && event.ctrlKey && duplicatedObjects.length === 0 && isCtrlSelecting) {
                selectionBox.endPoint.set(pointer.x, pointer.y, 0);
            }
        };

        const onPointerUp = (event: PointerEvent) => {
            if (isSelecting && isCtrlSelecting) {
                isCtrlSelecting = false;
                isSelecting = false;
                if (event.ctrlKey && duplicatedObjects.length === 0) {
                    selectAssets();
                }
            } else if (!isSelecting && selectedAssets.length > 0 && ((pastedObjects.length === 0 && duplicatedObjects.length === 0 && movedObjects.length === 0 && rotatedObjects.length === 0) || event.button !== 0)) {
                clearSelection();
                helper.enabled = true;
                isCtrlSelecting = false;
            }
        };

        const onKeyDown = (event: KeyboardEvent) => {
            if (movedObjects.length > 0 || rotatedObjects.length > 0) return;
            if (event.key.toLowerCase() === "escape") {
                event.preventDefault();
                clearSelection();
            }
            if (event.key.toLowerCase() === "delete") {
                event.preventDefault();
                deleteSelection();
            }
        };

        const onContextMenu = (event: MouseEvent) => {
            event.preventDefault();
            clearSelection();
        }

        if (!toggleView && activeModule === "builder") {
            helper.enabled = true;
            canvasElement.addEventListener("pointerdown", onPointerDown);
            canvasElement.addEventListener("pointermove", onPointerMove);
            canvasElement.addEventListener("contextmenu", onContextMenu);
            canvasElement.addEventListener("pointerup", onPointerUp);
            canvasElement.addEventListener("keydown", onKeyDown);
        } else {
            helper.enabled = false;
            helper.dispose();
        }

        return () => {
            canvasElement.removeEventListener("pointerdown", onPointerDown);
            canvasElement.removeEventListener("pointermove", onPointerMove);
            canvasElement.removeEventListener("contextmenu", onContextMenu);
            canvasElement.removeEventListener("pointerup", onPointerUp);
            canvasElement.removeEventListener("keydown", onKeyDown);
            helper.enabled = false;
            helper.dispose();
        };
    }, [camera, controls, scene, toggleView, selectedAssets, copiedObjects, pastedObjects, duplicatedObjects, movedObjects, socket, floorItems, rotatedObjects, activeModule]);

    useEffect(() => {
        if (activeModule !== "builder") {
            clearSelection();
        }
    }, [activeModule]);

    useFrame(() => {
        if (pastedObjects.length === 0 && duplicatedObjects.length === 0 && movedObjects.length === 0 && rotatedObjects.length === 0) {
            selectionGroup.current.position.set(0, 0, 0);
        }
    });

    const selectAssets = () => {
        selectionBox.endPoint.set(pointer.x, pointer.y, 0);
        if (controls) (controls as any).enabled = true;

        let selectedObjects = selectionBox.select();
        let Objects = new Set<THREE.Object3D>();

        selectedObjects.map((object) => {
            let currentObject: THREE.Object3D | null = object;
            while (currentObject) {
                if (currentObject.userData.modelId) {
                    Objects.add(currentObject);
                    break;
                }
                currentObject = currentObject.parent || null;
            }
        })

        if (Objects.size === 0) {
            clearSelection();
            return;
        }

        const updatedSelections = new Set(selectedAssets);
        Objects.forEach((obj) => {
            updatedSelections.has(obj) ? updatedSelections.delete(obj) : updatedSelections.add(obj);
        });

        const selected = Array.from(updatedSelections);

        setSelectedAssets(selected);
    };

    const clearSelection = () => {
        selectionGroup.current.children = [];
        selectionGroup.current.position.set(0, 0, 0);
        selectionGroup.current.rotation.set(0, 0, 0);
        setpastedObjects([]);
        setDuplicatedObjects([]);
        setSelectedAssets([]);
    }

    const deleteSelection = () => {
        if (selectedAssets.length > 0 && duplicatedObjects.length === 0) {
            const email = localStorage.getItem('email');
            const organization = (email!.split("@")[1]).split(".")[0];

            const storedItems = JSON.parse(localStorage.getItem("FloorItems") || '[]');
            const selectedUUIDs = selectedAssets.map((mesh: THREE.Object3D) => mesh.uuid);

            const updatedStoredItems = storedItems.filter((item: { modeluuid: string }) => !selectedUUIDs.includes(item.modeluuid));
            localStorage.setItem("FloorItems", JSON.stringify(updatedStoredItems));

            selectedAssets.forEach((selectedMesh: THREE.Object3D) => {

                //REST

                // const response = await deleteFloorItem(organization, selectedMesh.uuid, selectedMesh.userData.name);

                //SOCKET

                const data = {
                    organization: organization,
                    modeluuid: selectedMesh.uuid,
                    modelname: selectedMesh.userData.name,
                    socketId: socket.id
                };

                socket.emit('v1:FloorItems:delete', data);

                selectedMesh.traverse((child: THREE.Object3D) => {
                    if (child instanceof THREE.Mesh) {
                        if (child.geometry) child.geometry.dispose();
                        if (Array.isArray(child.material)) {
                            child.material.forEach((material) => {
                                if (material.map) material.map.dispose();
                                material.dispose();
                            });
                        } else if (child.material) {
                            if (child.material.map) child.material.map.dispose();
                            child.material.dispose();
                        }
                    }
                });

                itemsGroupRef.current?.remove(selectedMesh);
            });

            const updatedItems = floorItems.filter((item: { modeluuid: string }) => !selectedUUIDs.includes(item.modeluuid));
            setFloorItems(updatedItems);

        }
        toast.success("Selected models removed!");
        clearSelection();
    };

    return (
        <>
            <group name="SelectionGroup" >
                <group ref={selectionGroup} name="selectionAssetGroup" >
                    <BoundingBox boundingBoxRef={boundingBoxRef} />
                </group>
            </group>
            <MoveControls movedObjects={movedObjects} setMovedObjects={setMovedObjects} itemsGroupRef={itemsGroupRef} copiedObjects={copiedObjects} setCopiedObjects={setCopiedObjects} pastedObjects={pastedObjects} setpastedObjects={setpastedObjects} duplicatedObjects={duplicatedObjects} setDuplicatedObjects={setDuplicatedObjects} rotatedObjects={rotatedObjects} setRotatedObjects={setRotatedObjects} selectionGroup={selectionGroup} boundingBoxRef={boundingBoxRef} />
            <RotateControls rotatedObjects={rotatedObjects} setRotatedObjects={setRotatedObjects} movedObjects={movedObjects} setMovedObjects={setMovedObjects} itemsGroupRef={itemsGroupRef} copiedObjects={copiedObjects} setCopiedObjects={setCopiedObjects} pastedObjects={pastedObjects} setpastedObjects={setpastedObjects} duplicatedObjects={duplicatedObjects} setDuplicatedObjects={setDuplicatedObjects} selectionGroup={selectionGroup} boundingBoxRef={boundingBoxRef} />
            <DuplicationControls itemsGroupRef={itemsGroupRef} duplicatedObjects={duplicatedObjects} setDuplicatedObjects={setDuplicatedObjects} setpastedObjects={setpastedObjects} selectionGroup={selectionGroup} movedObjects={movedObjects} setMovedObjects={setMovedObjects} rotatedObjects={rotatedObjects} setRotatedObjects={setRotatedObjects} boundingBoxRef={boundingBoxRef} />
            <CopyPasteControls itemsGroupRef={itemsGroupRef} copiedObjects={copiedObjects} setCopiedObjects={setCopiedObjects} pastedObjects={pastedObjects} setpastedObjects={setpastedObjects} selectionGroup={selectionGroup} setDuplicatedObjects={setDuplicatedObjects} movedObjects={movedObjects} setMovedObjects={setMovedObjects} rotatedObjects={rotatedObjects} setRotatedObjects={setRotatedObjects} boundingBoxRef={boundingBoxRef} />
        </>
    );
};

export default SelectionControls;