import { toRefs, reactive } from 'vue';
import { IStorageContainer, IStorageLocation, IStorageSection, IStoreRoom, ITreeData } from '../models/storage';
const tags = {
    storeRoom: 'store-room',
    storageLocation: 'storage-location',
    storageSection: 'storage-section',
    storageContainer: 'storage-container',
    containerView: 'container-view',
};

const state = reactive<ITreeData>({
    treeData: [],
    activePath: {
        room: undefined,
        location: undefined,
        section: undefined,
        container: undefined,
    },
    activeTree: {} as any,
});

export default function useTreeStateComposable() {
    const setTree = (treeData: IStoreRoom[]): void => {
        state.treeData = treeData;
    };

    const resetActiveTree = () => {
        state.activeTree = {};
        state.activePath = {};
    };

    const setActiveTree = (activeTree: IStoreRoom | IStorageLocation | IStorageSection | IStorageContainer): void => {
        state.activeTree = activeTree;

        if (activeTree.tag === tags.storeRoom) {
            state.activePath = {
                ...state.activePath,
                room: activeTree.uid,
                location: undefined,
                section: undefined,
                container: undefined,
            };
        }
        if (activeTree.tag === tags.storageLocation) {
            state.activePath = {
                ...state.activePath,
                location: activeTree.uid,
                section: undefined,
                container: undefined,
            };
        }
        if (activeTree.tag === tags.storageSection) {
            state.activePath = {
                ...state.activePath,
                section: activeTree.uid,
                container: undefined,
            };
        }
        if (activeTree.tag === tags.storageContainer) {
            state.activePath = { ...state.activePath, container: activeTree.uid };
        }
        _openTree(activeTree);
    };

    const _openTree = (activeTree: IStoreRoom | IStorageLocation | IStorageSection | IStorageContainer): void => {
        if (activeTree.tag === tags.storeRoom) {
            console.log(tags.storeRoom, activeTree.uid, state.treeData);
            state.treeData = [
                ...state.treeData.map(room => {
                    if (room.uid !== activeTree.uid) {
                        room = {
                            ...room,
                            children: room.children?.map(location => {
                                return {
                                    ...location,
                                    children: location.children?.map(section => ({
                                        ...section,
                                        isOpen: false,
                                    })),
                                    isOpen: false,
                                };
                            }),
                            isOpen: false,
                        };
                    } else {
                        room = { ...room, isOpen: !room?.isOpen };
                    }
                    return room;
                }),
            ];
        }
        if (activeTree.tag === tags.storageLocation) {
            console.log(tags.storageLocation, activeTree.uid, state.treeData);
            state.treeData = [
                ...state.treeData.map(room => ({
                    ...room,
                    children: room.children?.map(location => {
                        if (location.uid !== activeTree.uid) {
                            location = {
                                ...location,
                                children: location.children?.map(section => ({
                                    ...section,
                                    isOpen: false,
                                })),
                                isOpen: false,
                            };
                        } else {
                            location = { ...location, isOpen: !location.isOpen };
                        }
                        return location;
                    }),
                })),
            ];
        }
        if (activeTree.tag === tags.storageSection) {
            console.log(tags.storageSection, activeTree.uid, state.treeData);
            state.treeData = [
                ...state.treeData.map(room => ({
                    ...room,
                    children: room.children?.map(location => ({
                        ...location,
                        children: location.children?.map(section => {
                            if (section.uid !== activeTree.uid) {
                                section = { ...section, isOpen: false };
                            } else {
                                section = { ...section, isOpen: !section.isOpen };
                            }
                            return section;
                        }),
                    })),
                })),
            ];
        }
    };

    const newStoreRoom = (room: IStoreRoom): void => {
        state.treeData.push({ ...room, tag: tags.storeRoom });
    };

    const newStorageLocation = (location: IStorageLocation): void => {
        const index = state.treeData.findIndex(x => x.uid == location.storeRoomUid);
        if (index >= -1) {
            state.treeData[index].children = [...(state.treeData[index].children ?? []), { ...location, tag: tags.storageLocation }];
        }
    };

    const newStorageSection = (section: IStorageSection): void => {
        const roomIndex = state.treeData.findIndex(x => x.uid == section.storageLocation?.storeRoomUid);
        if (roomIndex >= -1) {
            const index = state.treeData[roomIndex]?.children?.findIndex(x => x.uid == section.storageLocationUid) ?? -1;
            if (index > -1) {
                state.treeData[roomIndex].children![index].children = [
                    ...(state.treeData[roomIndex].children![index].children ?? []),
                    { ...section, tag: tags.storageSection },
                ];
            }
        }
    };

    const newStorageContainer = (container: IStorageContainer): void => {
        const roomIndex = state.treeData.findIndex(x => x.uid == container.storageSection?.storageLocation?.storeRoomUid);
        if (roomIndex >= -1) {
            const locationIndex =
                state.treeData[roomIndex]!.children?.findIndex(x => x.uid == container.storageSection?.storageLocationUid) ?? -1;
            if (locationIndex > -1) {
                const index =
                    state.treeData[roomIndex].children![locationIndex].children?.findIndex(x => x.uid == container.storageSectionUid) ?? -1;
                if (index > -1) {
                    state.treeData[roomIndex].children![locationIndex].children![index].children = [
                        ...(state.treeData[roomIndex].children![locationIndex].children![index].children ?? []),
                        { ...container, tag: tags.storageContainer },
                    ];
                }
            }
        }
    };

    return {
        ...toRefs(state),
        tags,
        setTree,
        setActiveTree,
        resetActiveTree,
        newStoreRoom,
        newStorageLocation,
        newStorageSection,
        newStorageContainer,
    };
}

const exampleExpectedtree = [
    { uid: 1, name: 'Store Room 1', tag: 'store-room' },
    { uid: 2, name: 'Store Room 2', tag: 'store-room' },
    {
        uid: 3,
        name: 'Store Room 3',
        children: [
            {
                uid: 1,
                name: 'Freezer A',
                children: [
                    { uid: 3, name: 'Rack 1', tag: 'storage-section' },
                    {
                        uid: 5,
                        name: 'Rack 2',
                        children: [
                            { uid: 1, name: 'Container SW', tag: 'storage-container' },
                            { uid: 2, name: 'Container DER', tag: 'storage-container' },
                        ],
                        tag: 'storage-section',
                    },
                ],
                tag: 'storage-location',
            },
            { uid: 2, name: 'Freezer B', tag: 'storage-location' },
            { uid: 3, name: 'CupBoard X', tag: 'storage-location' },
            {
                uid: 4,
                name: 'CupBoard Y',
                children: [
                    { uid: 1, name: 'Shelve 1', tag: 'storage-section' },
                    { uid: 2, name: 'Shelve 2', tag: 'storage-section' },
                ],
                tag: 'storage-location',
            },
        ],
        tag: 'store-room',
    },
];