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, useSimulationStates, 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 * as SimulationTypes from "../../../../types/simulationTypes";

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 { simulationStates, setSimulationStates } = useSimulationStates();
    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 isRightClick = false;
        let rightClickMoved = 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 === 2) {
                isRightClick = true;
                rightClickMoved = false;
            } else if (event.button === 0) {
                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) => {
            if (isRightClick) {
                rightClickMoved = true;
            }
            isSelecting = true;
            if (helper.isDown && event.ctrlKey && duplicatedObjects.length === 0 && isCtrlSelecting) {
                selectionBox.endPoint.set(pointer.x, pointer.y, 0);
            }
        };

        const onPointerUp = (event: PointerEvent) => {
            if (event.button === 2) {
                isRightClick = false;
                if (!rightClickMoved) {
                    clearSelection();
                }
                return;
            }

            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();
            if (!rightClickMoved) {
                clearSelection();
            }
        };

        if (!toggleView && activeModule === "builder") {
            helper.enabled = true;
            if (duplicatedObjects.length === 0 && pastedObjects.length === 0) {
                canvasElement.addEventListener("pointerdown", onPointerDown);
                canvasElement.addEventListener("pointermove", onPointerMove);
                canvasElement.addEventListener("pointerup", onPointerUp);
            } else {
                helper.enabled = false;
                helper.dispose();
            }
            canvasElement.addEventListener("contextmenu", onContextMenu);
            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 updateBackend = async (updatedPaths: (SimulationTypes.ConveyorEventsSchema | SimulationTypes.VehicleEventsSchema | SimulationTypes.StaticMachineEventsSchema | SimulationTypes.ArmBotEventsSchema)[]) => {
        if (updatedPaths.length === 0) return;
        const email = localStorage.getItem("email");
        const organization = email ? email.split("@")[1].split(".")[0] : "";

        updatedPaths.forEach(async (updatedPath) => {
            if (updatedPath.type === "Conveyor") {
                // await setEventApi(
                //   organization,
                //   updatedPath.modeluuid,
                //   { type: "Conveyor", points: updatedPath.points, speed: updatedPath.speed }
                // );

                const data = {
                    organization: organization,
                    modeluuid: updatedPath.modeluuid,
                    eventData: {
                        type: "Conveyor",
                        points: updatedPath.points,
                        speed: updatedPath.speed,
                    },
                };

                socket.emit("v2:model-asset:updateEventData", data);
            } else if (updatedPath.type === "Vehicle") {
                // await setEventApi(
                //     organization,
                //     updatedPath.modeluuid,
                //     { type: "Vehicle", points: updatedPath.points }
                // );

                const data = {
                    organization: organization,
                    modeluuid: updatedPath.modeluuid,
                    eventData: { type: "Vehicle", points: updatedPath.points },
                };

                socket.emit("v2:model-asset:updateEventData", data);
            } else if (updatedPath.type === "StaticMachine") {
                // await setEventApi(
                //     organization,
                //     updatedPath.modeluuid,
                //     { type: "StaticMachine", points: updatedPath.points }
                // );

                const data = {
                    organization: organization,
                    modeluuid: updatedPath.modeluuid,
                    eventData: { type: "StaticMachine", points: updatedPath.points },
                };

                socket.emit("v2:model-asset:updateEventData", data);
            } else if (updatedPath.type === "ArmBot") {
                // await setEventApi(
                //     organization,
                //     updatedPath.modeluuid,
                //     { type: "ArmBot", points: updatedPath.points }
                // );

                const data = {
                    organization: organization,
                    modeluuid: updatedPath.modeluuid,
                    eventData: { type: "ArmBot", points: updatedPath.points },
                };

                socket.emit("v2:model-asset:updateEventData", data);
            }
        });
    };

    const removeConnections = (deletedModelUUIDs: string[]) => {
        const updatedStates = simulationStates.map((state) => {
            // Handle Conveyor
            if (state.type === "Conveyor") {
                const updatedConveyor: SimulationTypes.ConveyorEventsSchema = {
                    ...state,
                    points: state.points.map((point) => {
                        return {
                            ...point,
                            connections: {
                                ...point.connections,
                                targets: point.connections.targets.filter(
                                    (target) => !deletedModelUUIDs.includes(target.modelUUID)
                                ),
                            },
                        };
                    }),
                };
                return updatedConveyor;
            }

            // Handle Vehicle
            else if (state.type === "Vehicle") {
                const updatedVehicle: SimulationTypes.VehicleEventsSchema = {
                    ...state,
                    points: {
                        ...state.points,
                        connections: {
                            ...state.points.connections,
                            targets: state.points.connections.targets.filter(
                                (target) => !deletedModelUUIDs.includes(target.modelUUID)
                            ),
                        },
                    },
                };
                return updatedVehicle;
            }

            // Handle StaticMachine
            else if (state.type === "StaticMachine") {
                const updatedStaticMachine: SimulationTypes.StaticMachineEventsSchema =
                {
                    ...state,
                    points: {
                        ...state.points,
                        connections: {
                            ...state.points.connections,
                            targets: state.points.connections.targets.filter(
                                (target) => !deletedModelUUIDs.includes(target.modelUUID)
                            ),
                        },
                    },
                };
                return updatedStaticMachine;
            }

            // Handle ArmBot
            else if (state.type === "ArmBot") {
                const updatedArmBot: SimulationTypes.ArmBotEventsSchema = {
                    ...state,
                    points: {
                        ...state.points,
                        connections: {
                            ...state.points.connections,

                            targets: state.points.connections.targets.filter(
                                (target: any) => !deletedModelUUIDs.includes(target.modelUUID)
                            ),
                        },
                        actions: {
                            ...state.points.actions,
                            processes: (state.points.actions.processes =
                                state.points.actions.processes?.filter((process) => {
                                    const matchedStates = simulationStates.filter((s) => deletedModelUUIDs.includes(s.modeluuid));

                                    if (matchedStates.length > 0) {
                                        if (matchedStates[0]?.type === "StaticMachine") {
                                            const trigPoints = matchedStates[0]?.points;

                                            return !(
                                                process.triggerId === trigPoints?.triggers?.uuid
                                            );
                                        } else if (matchedStates[0]?.type === "Conveyor") {
                                            const trigPoints = matchedStates[0]?.points;

                                            if (Array.isArray(trigPoints)) {
                                                const nonEmptyTriggers = trigPoints.filter((point) => point && point.triggers && point.triggers.length > 0);

                                                const allTriggerUUIDs = nonEmptyTriggers.flatMap((point) => point.triggers).map((trigger) => trigger.uuid);

                                                return !allTriggerUUIDs.includes(process.triggerId);
                                            }
                                        }
                                    }
                                    return true;
                                })),
                        },
                    },
                };
                return updatedArmBot;
            }

            return state;
        });

        const filteredStates = updatedStates.filter((state) => !deletedModelUUIDs.includes(state.modeluuid));

        updateBackend(filteredStates);
        setSimulationStates(filteredStates);
    };

    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("v2:model-asset: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();
                        }
                    }
                });

                setSimulationStates((prevEvents: (| SimulationTypes.ConveyorEventsSchema | SimulationTypes.VehicleEventsSchema | SimulationTypes.StaticMachineEventsSchema | SimulationTypes.ArmBotEventsSchema)[]) => {
                    const updatedEvents = (prevEvents || []).filter((event) => event.modeluuid !== selectedMesh.uuid);
                    return updatedEvents;
                });

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

            const allUUIDs = selectedAssets.map((val: any) => val.uuid);
            removeConnections(allUUIDs);

            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;