import * as THREE from "three";
import * as Types from "../../../../../types/world/worldTypes";
import { useParams } from "react-router-dom";
import { useFrame, useThree } from "@react-three/fiber";
import { useCallback, useEffect, useMemo, useRef, useState } from "react";
import { useSceneContext } from "../../../sceneContext";
import useModuleStore from "../../../../../store/ui/useModuleStore";
import { useSocketStore } from "../../../../../store/socket/useSocketStore";
import { useContextActionStore, useToggleView, useToolMode } from "../../../../../store/builder/store";
import { handleAssetPositionSnap } from "./functions/handleAssetPositionSnap";
import DistanceFindingControls from "./distanceFindingControls";
import { detectModifierKeys } from "../../../../../utils/shortcutkeys/detectModifierKeys";
import { getUserData } from "../../../../../functions/getUserData";
import useAssetResponseHandler from "../../../../collaboration/responseHandler/useAssetResponseHandler";

import { upsertProductOrEventApi } from "../../../../../services/simulation/products/UpsertProductOrEventApi";
import { setAssetsApi } from "../../../../../services/factoryBuilder/asset/floorAsset/setAssetsApi";

function MoveControls3D({ boundingBoxRef }: any) {
    const { camera, controls, gl, scene, pointer, raycaster } = useThree();
    const plane = useMemo(() => new THREE.Plane(new THREE.Vector3(0, 1, 0), 0), []);

    const { toggleView } = useToggleView();
    const { toolMode } = useToolMode();
    const { activeModule } = useModuleStore();
    const { builderSocket } = useSocketStore();
    const { userId, organization } = getUserData();
    const { projectId } = useParams();
    const { assetStore, eventStore, productStore, undoRedo3DStore, versionStore } = useSceneContext();
    const { push3D } = undoRedo3DStore();
    const {
        updateAsset,
        getAssetById,
        selectedAssets,
        setSelectedAssets,
        movedObjects,
        setMovedObjects,
        pastedObjects,
        setPastedObjects,
        duplicatedObjects,
        setDuplicatedObjects,
        rotatedObjects,
        setRotatedObjects,
        initialStates,
        setInitialState,
    } = assetStore();
    const { updateAssetInScene } = useAssetResponseHandler();
    const { selectedVersion } = versionStore();

    const [keyEvent, setKeyEvent] = useState<"Ctrl" | "Shift" | "Ctrl+Shift" | "">("");
    const [axisConstraint, setAxisConstraint] = useState<"x" | "z" | null>(null);
    const [dragOffset, setDragOffset] = useState<THREE.Vector3 | null>(null);
    const [isMoving, setIsMoving] = useState(false);
    const mouseButtonsDown = useRef<{ left: boolean; right: boolean }>({ left: false, right: false });
    const { contextAction, setContextAction } = useContextActionStore();
    const fineMoveBaseRef = useRef<THREE.Vector3 | null>(null);
    const lastPointerPositionRef = useRef<THREE.Vector3 | null>(null);
    const wasShiftHeldRef = useRef(false);

    const updateBackend = (productName: string, productUuid: string, projectId: string, eventData: EventsSchema) => {
        upsertProductOrEventApi({
            productName: productName,
            productUuid: productUuid,
            projectId: projectId,
            eventDatas: eventData,
            versionId: selectedVersion?.versionId || "",
        });
    };

    useEffect(() => {
        if (contextAction === "moveAsset") {
            setContextAction(null);
            moveAssets();
        }
        // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [contextAction]);

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

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

        let isPointerMoving = false;

        const onPointerMove = () => {
            isPointerMoving = true;
        };

        const onKeyUp = (event: KeyboardEvent) => {
            const keyCombination = detectModifierKeys(event);

            if (keyCombination === "") {
                setKeyEvent("");
            } else if (keyCombination === "Ctrl" || keyCombination === "Ctrl+Shift" || keyCombination === "Shift") {
                setKeyEvent(keyCombination);
            }
            if (movedObjects[0]) {
                const intersectionPoint = new THREE.Vector3();
                raycaster.setFromCamera(pointer, camera);
                const hit = raycaster.ray.intersectPlane(plane, intersectionPoint);
                if (hit) {
                    const newOffset = calculateDragOffset(movedObjects[0], intersectionPoint);
                    setDragOffset(newOffset);
                }
            }
        };

        const onPointerDown = (event: PointerEvent) => {
            isPointerMoving = false;

            if (event.button === 0) mouseButtonsDown.current.left = true;
            if (event.button === 2) mouseButtonsDown.current.right = true;
        };

        const onPointerUp = (event: PointerEvent) => {
            if (event.button === 0) mouseButtonsDown.current.left = false;
            if (event.button === 2) mouseButtonsDown.current.right = false;

            if (!isPointerMoving && movedObjects.length > 0 && event.button === 0) {
                event.preventDefault();
                placeMovedAssets();
            }
            if (!isPointerMoving && movedObjects.length > 0 && event.button === 2) {
                event.preventDefault();
                resetToInitialPositions();
                clearSelection();
                setMovedObjects([]);
            }
        };

        const onKeyDown = (event: KeyboardEvent) => {
            const keyCombination = detectModifierKeys(event);

            if (pastedObjects.length > 0 || duplicatedObjects.length > 0 || rotatedObjects.length > 0) return;

            if (isMoving && movedObjects.length > 0) {
                if (event.key.toLowerCase() === "x") {
                    setAxisConstraint((prev) => (prev === "x" ? null : "x"));
                    event.preventDefault();
                    return;
                }
                if (event.key.toLowerCase() === "z") {
                    setAxisConstraint((prev) => (prev === "z" ? null : "z"));
                    event.preventDefault();
                    return;
                }
            }

            if (keyCombination !== keyEvent) {
                if (keyCombination === "Ctrl" || keyCombination === "Ctrl+Shift" || keyCombination === "Shift") {
                    setKeyEvent(keyCombination);
                } else {
                    setKeyEvent("");
                }
            }

            if (keyCombination === "G") {
                if (selectedAssets.length > 0) {
                    moveAssets();
                }
            }

            if (keyCombination === "ESCAPE") {
                event.preventDefault();
                resetToInitialPositions();
                clearSelection();
                setMovedObjects([]);
            }
        };

        if (!toggleView && toolMode === "cursor") {
            canvasElement.addEventListener("pointerdown", onPointerDown);
            canvasElement.addEventListener("pointermove", onPointerMove);
            canvasElement.addEventListener("pointerup", onPointerUp);
            canvasElement.addEventListener("keydown", onKeyDown);
            canvasElement?.addEventListener("keyup", onKeyUp);
        }

        return () => {
            canvasElement.removeEventListener("pointerdown", onPointerDown);
            canvasElement.removeEventListener("pointermove", onPointerMove);
            canvasElement.removeEventListener("pointerup", onPointerUp);
            canvasElement.removeEventListener("keydown", onKeyDown);
            canvasElement?.removeEventListener("keyup", onKeyUp);
        };
        // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [camera, controls, scene, toggleView, toolMode, selectedAssets, builderSocket, pastedObjects, duplicatedObjects, movedObjects, rotatedObjects, keyEvent, initialStates, productStore]);

    useEffect(() => {
        if (activeModule !== "builder" || toolMode !== "cursor" || toggleView) {
            resetToInitialPositions();
            setMovedObjects([]);
        }
    }, [activeModule, toolMode, toggleView]);

    const calculateDragOffset = useCallback((point: THREE.Object3D, hitPoint: THREE.Vector3) => {
        const pointPosition = new THREE.Vector3().copy(point.position);
        return new THREE.Vector3().subVectors(pointPosition, hitPoint);
    }, []);

    const resetToInitialPositions = useCallback(() => {
        setTimeout(() => {
            movedObjects.forEach((movedObject: THREE.Object3D) => {
                if (movedObject.userData.modelUuid && initialStates[movedObject.uuid]) {
                    const initialState = initialStates[movedObject.uuid];

                    updateAsset(movedObject.userData.modelUuid, {
                        position: initialState.position,
                        rotation: initialState.rotation,
                    });

                    movedObject.position.set(initialState.position[0], initialState.position[1], initialState.position[2]);
                    if (initialState.rotation) {
                        movedObject.rotation.set(initialState.rotation[0], initialState.rotation[1], initialState.rotation[2]);
                    }
                }
            });
            setAxisConstraint(null);
        }, 50);
    }, [movedObjects, initialStates, updateAsset]);

    const resetToInitialPosition = useCallback(
        (modelUuid: string, callBack?: () => void) => {
            setTimeout(() => {
                const movedObject = movedObjects.find((obj: THREE.Object3D) => obj.userData.modelUuid === modelUuid);

                if (!movedObject) return;

                const initialState = initialStates[movedObject.uuid];
                if (!initialState) return;

                updateAsset(modelUuid, {
                    position: initialState.position,
                    rotation: initialState.rotation,
                });

                movedObject.position.set(initialState.position[0], initialState.position[1], initialState.position[2]);
                if (initialState.rotation) {
                    movedObject.rotation.set(initialState.rotation[0], initialState.rotation[1], initialState.rotation[2]);
                }

                setAxisConstraint(null);

                if (callBack) callBack();
            }, 50);
        },
        [movedObjects, initialStates, updateAsset]
    );

    useEffect(() => {
        if (movedObjects.length > 0) {
            const intersectionPoint = new THREE.Vector3();
            raycaster.setFromCamera(pointer, camera);
            const hit = raycaster.ray.intersectPlane(plane, intersectionPoint);
            if (hit) {
                const newOffset = calculateDragOffset(movedObjects[0], intersectionPoint);
                setDragOffset(newOffset);
            }
        }
        // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [axisConstraint, camera, movedObjects]);

    useFrame(() => {
        if (!isMoving || movedObjects.length === 0) return;

        const intersectionPoint = new THREE.Vector3();
        raycaster.setFromCamera(pointer, camera);
        const hit = raycaster.ray.intersectPlane(plane, intersectionPoint);

        if (hit) {
            if (mouseButtonsDown.current.left || mouseButtonsDown.current.right) {
                if (movedObjects[0]) {
                    const newOffset = calculateDragOffset(movedObjects[0], intersectionPoint);
                    setDragOffset(newOffset);
                }
                return;
            }

            if (dragOffset) {
                const rawBasePosition = new THREE.Vector3().addVectors(intersectionPoint, dragOffset);
                const model = movedObjects[0];
                const baseNewPosition = handleAssetPositionSnap({ rawBasePosition, intersectionPoint, model, axisConstraint, keyEvent, fineMoveBaseRef, lastPointerPositionRef, wasShiftHeldRef });

                movedObjects.forEach((movedAsset: THREE.Object3D) => {
                    if (movedAsset.userData.modelUuid) {
                        const initialState = initialStates[movedAsset.userData.modelUuid];
                        const offsetState = initialStates[movedObjects[0].uuid];

                        if (initialState.position && offsetState.position) {
                            const relativeOffset = new THREE.Vector3().subVectors(
                                new THREE.Vector3(initialState.position[0], initialState.position[1], initialState.position[2]),
                                new THREE.Vector3(offsetState.position[0], offsetState.position[1], offsetState.position[2])
                            );
                            const model = scene.getObjectByProperty("uuid", movedAsset.userData.modelUuid);

                            const newPosition = new THREE.Vector3().addVectors(baseNewPosition, relativeOffset);
                            const positionArray: [number, number, number] = [newPosition.x, newPosition.y, newPosition.z];

                            if (model) {
                                model.position.set(...positionArray);
                            }
                        }
                    }
                });

                const position = new THREE.Vector3();
                if (boundingBoxRef.current) {
                    boundingBoxRef.current.getWorldPosition(position);
                } else {
                    const box = new THREE.Box3();
                    movedObjects.forEach((obj: THREE.Object3D) => box.expandByObject(obj));
                    const center = new THREE.Vector3();
                    box.getCenter(center);
                }
            }
        }
    });

    const moveAssets = () => {
        const states: Record<string, { position: [number, number, number]; rotation: [number, number, number] }> = {};
        const positions: Record<string, THREE.Vector3> = {};

        selectedAssets.forEach((asset: THREE.Object3D) => {
            states[asset.uuid] = {
                position: asset.position.toArray(),
                rotation: [asset.rotation.x, asset.rotation.y, asset.rotation.z],
            };
            positions[asset.uuid] = new THREE.Vector3().copy(asset.position);
        });

        setInitialState(states);

        raycaster.setFromCamera(pointer, camera);
        const intersectionPoint = new THREE.Vector3();
        const hit = raycaster.ray.intersectPlane(plane, intersectionPoint);

        if (hit && selectedAssets[0]) {
            const offset = calculateDragOffset(selectedAssets[0], hit);
            setDragOffset(offset);
        }

        setMovedObjects(selectedAssets);
        setIsMoving(true);
    };

    const placeMovedAssets = () => {
        if (movedObjects.length === 0) return;

        const undoActions: UndoRedo3DAction[] = [];
        const assetsToUpdate: AssetData[] = [];

        movedObjects.forEach(async (movedAsset: THREE.Object3D) => {
            if (movedAsset) {
                const assetUuid = movedAsset.userData.modelUuid;
                const asset = getAssetById(assetUuid);
                const model = scene.getObjectByProperty("uuid", movedAsset.userData.modelUuid);
                if (!asset || !model) return;
                const position = new THREE.Vector3().copy(model.position);
                const initialState = initialStates[assetUuid];

                if (initialState) {
                    assetsToUpdate.push({
                        type: "Asset",
                        assetData: {
                            ...asset,
                            position: initialState.position,
                            rotation: initialState.rotation,
                        },
                        newData: {
                            ...asset,
                            position: [position.x, position.y, position.z],
                            rotation: [movedAsset.rotation.x, movedAsset.rotation.y, movedAsset.rotation.z],
                        },
                        timeStap: new Date().toISOString(),
                    });
                }

                const newFloorItem: Types.FloorItemType = {
                    modelUuid: movedAsset.userData.modelUuid,
                    modelName: movedAsset.userData.modelName,
                    assetId: movedAsset.userData.assetId,
                    position: [position.x, position.y, position.z],
                    rotation: { x: movedAsset.rotation.x, y: movedAsset.rotation.y, z: movedAsset.rotation.z },
                    isLocked: false,
                    isVisible: true,
                };

                if (movedAsset.userData.eventData) {
                    const eventData = eventStore.getState().getEventByModelUuid(movedAsset.userData.modelUuid);
                    const productData = productStore.getState().getEventByModelUuid(productStore.getState().selectedProduct.productUuid, movedAsset.userData.modelUuid);

                    if (eventData) {
                        eventStore.getState().updateEvent(movedAsset.userData.modelUuid, {
                            position: [position.x, position.y, position.z],
                            rotation: [movedAsset.rotation.x, movedAsset.rotation.y, movedAsset.rotation.z],
                        });
                    }

                    if (productData) {
                        const event = productStore.getState().updateEvent(productStore.getState().selectedProduct.productUuid, movedAsset.userData.modelUuid, {
                            position: [position.x, position.y, position.z],
                            rotation: [movedAsset.rotation.x, movedAsset.rotation.y, movedAsset.rotation.z],
                        });

                        if (event) {
                            updateBackend(productStore.getState().selectedProduct.productName, productStore.getState().selectedProduct.productUuid, projectId || "", event);
                        }

                        newFloorItem.eventData = eventData;
                    }
                }

                const data = {
                    organization,
                    modelUuid: newFloorItem.modelUuid,
                    modelName: newFloorItem.modelName,
                    assetId: newFloorItem.assetId,
                    position: newFloorItem.position,
                    rotation: { x: movedAsset.rotation.x, y: movedAsset.rotation.y, z: movedAsset.rotation.z },
                    isLocked: false,
                    isVisible: true,
                    socketId: builderSocket?.id,
                    versionId: selectedVersion?.versionId || "",
                    projectId,
                    userId,
                };

                if (!builderSocket?.connected) {
                    // REST

                    setAssetsApi({
                        modelUuid: newFloorItem.modelUuid,
                        modelName: newFloorItem.modelName,
                        assetId: newFloorItem.assetId,
                        position: newFloorItem.position,
                        rotation: { x: movedAsset.rotation.x, y: movedAsset.rotation.y, z: movedAsset.rotation.z },
                        isLocked: false,
                        isVisible: true,
                        versionId: selectedVersion?.versionId || "",
                        projectId: projectId,
                    })
                        .then((data) => {
                            if (!data.message || !data.data) {
                                echo.error(`Error moving asset: ${newFloorItem.modelUuid}`);
                                resetToInitialPosition(newFloorItem.modelUuid);
                                clearSelection();
                                return;
                            }
                            if (data.message === "Model updated successfully" && data.data) {
                                const model: Asset = {
                                    modelUuid: data.data.modelUuid,
                                    modelName: data.data.modelName,
                                    assetId: data.data.assetId,
                                    position: data.data.position,
                                    rotation: [data.data.rotation.x, data.data.rotation.y, data.data.rotation.z],
                                    isLocked: data.data.isLocked,
                                    isCollidable: true,
                                    isVisible: data.data.isVisible,
                                    opacity: 1,
                                    eventData: data.data.eventData,
                                };

                                updateAssetInScene(model, () => {
                                    echo.log(`Moved asset: ${model.modelName}`);
                                    clearSelection();
                                });
                            } else {
                                echo.error(`Error moving asset: ${newFloorItem.modelUuid}`);
                                resetToInitialPosition(newFloorItem.modelUuid);
                                clearSelection();
                            }
                        })
                        .catch(() => {
                            echo.error(`Error moving asset: ${newFloorItem.modelUuid}`);
                            resetToInitialPosition(newFloorItem.modelUuid);
                            clearSelection();
                        });
                } else {
                    // SOCKET

                    builderSocket.emit("v1:model-asset:add", data);
                }
            }
        });

        if (assetsToUpdate.length > 0) {
            if (assetsToUpdate.length === 1) {
                undoActions.push({
                    module: "builder",
                    actionType: "Asset-Update",
                    asset: assetsToUpdate[0],
                });
            } else {
                undoActions.push({
                    module: "builder",
                    actionType: "Assets-Update",
                    assets: assetsToUpdate,
                });
            }

            push3D({
                type: "Scene",
                actions: undoActions,
            });
        }

        setIsMoving(false);
        clearSelection();
        setAxisConstraint(null);
    };

    const clearSelection = () => {
        setPastedObjects([]);
        setDuplicatedObjects([]);
        setMovedObjects([]);
        setRotatedObjects([]);
        setSelectedAssets([]);
        setKeyEvent("");
    };

    return <DistanceFindingControls boundingBoxRef={boundingBoxRef} object={movedObjects.length} />;
}

export default MoveControls3D;