// material-ui
import * as React from 'react';
import {
    Button,
} from '@mui/material';
import {
    DataGrid,
    GridActionsCellItem,
    GridRowEditStopReasons,
    GridRowModes,
    GridToolbarContainer
} from "@mui/x-data-grid";
import EditIcon from '@mui/icons-material/Edit';
import DeleteIcon from '@mui/icons-material/DeleteOutlined';
import SaveIcon from '@mui/icons-material/Save';
import CancelIcon from '@mui/icons-material/Close';
import AddIcon from '@mui/icons-material/Add';
import {useContext, useEffect} from "react";
import axios from "axios";
import {apiPath} from "../../auth/utils";
import {
    CHECK_CATEGORY_DUPLICATE,
    GET_CATEGORY_LIST,
    UPDATE_CATEGORY_PATH,
} from "../../utils/ApiPathConst";
import {
    CustomNoRowsOverlay,
    GeneralConfirmWindow,
    notifyDeleteError,
    notifyDeleteSuccess,
    notifySaveSuccess,
    removeObjectWithId
} from "../../utils/CommonFunction";
import UploadContext from "../../components/UploadProvider";
import {LIONER_BUTTON_THEME} from "../../themes/colorConst";
import {ThemeProvider} from "@emotion/react";

let customerCount = -1;
function EditToolbar(props) {
    const {setRows, setRowModesModel} = props;

    const handleClick = (id) => {
        setRows((oldRows) => [
            {
                id,
                isNew:true
            }
            ,...oldRows
        ]);
        setRowModesModel((oldModel) => ({
            ...oldModel,
            [id]: {mode: GridRowModes.Edit, fieldToFocus: 'name'},
        }));
    };

    return (
        <GridToolbarContainer sx={{ml: 1}}>
            <Button color="primary" startIcon={<AddIcon/>}
                    onClick={()=> handleClick(customerCount--)}
            >
                Add Category
            </Button>
        </GridToolbarContainer>
    );
}

// ==============================|| CATEGORY TABLE ||============================== //

export default function CategoryTable({recordList}) {
    const [rows, setRows] = React.useState([]);
    const [rowModesModel, setRowModesModel] = React.useState({});
    const { setIsUploading } = useContext(UploadContext);
// ==============================|| DELETE WINDOW RELATED ||============================== //
    const [isWindowOpen, setIsWindowOpen] = React.useState(false);
    const [selectedId, setSelectedId] = React.useState(null);

    const handleClose = () => {
        setIsWindowOpen(false);
    };

    const [paginationModel, setPaginationModel] = React.useState({
        page: 0,
        pageSize:10
    });
    useEffect(() => {
        setPaginationModel({page:0,pageSize:10});
        setRows(recordList);
    }, [recordList]);

    const handleDeleteClick = (id) => () => {
        setIsWindowOpen(true);
        setSelectedId(id);
    };

    function updateData(){
        setIsUploading(true);
        axios.delete(`${apiPath}${GET_CATEGORY_LIST}/${selectedId}`,
        )
            .then((response) => {
                if (response.status === 204) {
                    notifyDeleteSuccess();
                    const newList =removeObjectWithId(rows,selectedId);
                    setIsWindowOpen(false);
                    setRows(newList);
                }
                setIsUploading(false);
            })
            .catch(error => {
                console.log(error);
                setIsUploading(false);
                return false;
            });
    }
// ==============================|| DELETE WINDOW RELATED ||============================== //

    useEffect(()=>{
        setRows(recordList);
    },[recordList]);

    const handleRowEditStop = (params, event) => {
        if (params.reason === GridRowEditStopReasons.rowFocusOut) {
            event.defaultMuiPrevented = true;
        }
    };

    const handleEditClick = (id) => () => {
        setRowModesModel({...rowModesModel, [id]: {mode: GridRowModes.Edit, fieldToFocus: 'name'}});
    };

    const handleSaveClick = (id) => () => {
        setRowModesModel({...rowModesModel, [id]: {mode: GridRowModes.View, fieldToFocus: 'name'}});
    };

    const handleCancelClick = (id) => () => {
        setRowModesModel({
            ...rowModesModel,
            [id]: {mode: GridRowModes.View, ignoreModifications: true},
        });
        const editedRow = rows.find((row) => row.id === id);
        if (editedRow.isNew) {
            setRows(rows.filter((row) => row.id !== id));
        }
    };

    function updateCategory(data) {
        if(data.name.trim().length === 0){
            notifyDeleteError(`Name cannot be null`);
            handleEditClick(data.id);
        }
        else{
            axios.get(`${apiPath}${CHECK_CATEGORY_DUPLICATE}`,
                {
                    params: {
                        "name": data.name.trim(),
                        "categoryId": data.id
                    },
                })
                .then((response) => {
                    if (response.status === 200) {
                        if(response.data.isTaken){
                            notifyDeleteError(`${data.name} already exists.`)
                            handleEditClick(data.id);
                        }
                        else if(!response.data.isTaken){
                            processUpload(data);
                        }
                    }
                })
                .catch(error => {
                    console.log(error);
                    return true;
                });
        }

    }

    function processUpload(data){
        setIsUploading(true);
        axios.post(`${apiPath}${UPDATE_CATEGORY_PATH}`,
            {
                "id": data.id,
                "name": data.name.trim(),
                "description": data.description,
            },
        )

            .then((response) => {
                if (response.status === 200) {
                    const updatedRow = { ...data };
                    updatedRow.id = response.data.id;
                    setIsUploading(false);
                    if(data.id === -1){
                        setRows(rows.map((row) => (row.id === -1 ? updatedRow : row)));
                    }
                    else{
                        setRows(rows.map((row) => (row.id === data.id ? updatedRow : row)));
                    }
                    notifySaveSuccess();
                }
            })
            .catch(error => {
                console.log(error);
                setIsUploading(false);
                return false;
            });
    }

    const processRowUpdate = (newRow) => {
        return new Promise((resolve, reject) => {
            const updatedRow = { ...newRow, isNew: false };
            if (updatedRow.name.trim().length === 0) {
                const error = new Error('Name cannot be null');
                reject(error);
                return;
            }
            setRows(rows.map((row) => (row.id === newRow.id ? updatedRow : row)));
            updateCategory(updatedRow);
            resolve(updatedRow); // Resolve the Promise with the updated row
        });
    };

    const handleRowModesModelChange = (newRowModesModel) => {
        setRowModesModel(newRowModesModel);
    };
    const columns = [
        {
            field: 'actions',
            type: 'actions',
            headerName: 'Actions',
            width: 100,
            cellClassName: 'actions',
            getActions: ({id}) => {
                const isInEditMode = rowModesModel[id]?.mode === GridRowModes.Edit;

                if (isInEditMode) {
                    return [
                        <ThemeProvider key="OutSave" theme={LIONER_BUTTON_THEME}>
                        <GridActionsCellItem
                            key="InCancel"
                            icon={<CancelIcon sx={{fontSize: 25}}/>}
                            label="Cancel"
                            className="textPrimary"
                            onClick={handleCancelClick(id)}
                            color="error"
                        />
                        </ThemeProvider>,
                        <ThemeProvider key="OutSave" theme={LIONER_BUTTON_THEME}>
                        <GridActionsCellItem
                            key="InSave"
                            icon={<SaveIcon sx={{fontSize: 25}}/>}
                            label="Save"
                            // sx={{
                            //     color: 'primary.main',
                            // }}
                            color="save"
                            onClick={handleSaveClick(id)}
                        />
                        </ThemeProvider>,
                    ];
                }

                return [
                    <ThemeProvider key="OutSave" theme={LIONER_BUTTON_THEME}>
                    <GridActionsCellItem
                        key="OutDelete"
                        icon={<DeleteIcon sx={{fontSize: 25}}/>}
                        label="Delete"
                        onClick={handleDeleteClick(id)}
                        color="delete"
                    />
                    </ThemeProvider>
                    ,
                    <ThemeProvider key="OutSave" theme={LIONER_BUTTON_THEME}>
                    <GridActionsCellItem
                        key="OutSave"
                        icon={<EditIcon sx={{fontSize: 25}}/>}
                        label="Edit"
                        className="textPrimary"
                        onClick={handleEditClick(id)}
                        color="edit"
                    />
                    </ThemeProvider>,
                ];
            },
        },
        {
            id: 'categoryName',
            field: 'name',
            headerName: 'Category Name',
            flex: 1,
            editable: true,
            preProcessEditCellProps: (params) => {
                if(params.props.value !== undefined){
                    const hasError = params.props.value.length > 50;
                    if (hasError) {
                        notifyDeleteError("Input has reached the length limit (50)");
                    }
                    return { ...params.props, error: hasError };
                }
            },
        },
        {
            id: 'categoryDescription',
            field: 'description',
            headerName: 'Category Description',
            flex: 1,
            editable: true,
            preProcessEditCellProps: (params) => {
                if(params.props.value !== undefined){
                    const hasError = params.props.value.length > 255;
                    if (hasError) {
                        notifyDeleteError("Input has reached the length limit (255)");
                    }
                    return { ...params.props, error: hasError };
                }
            },
        },
    ];

    return (
        <div style={{/*height: '66vh',*/ width: '100%'}}>

            <DataGrid
                rows={rows}
                columns={columns}
                columnHeaderHeight={45}
                editMode="row"
                rowModesModel={rowModesModel}
                onRowModesModelChange={handleRowModesModelChange}
                onRowEditStop={handleRowEditStop}
                onProcessRowUpdateError={(error) => {
                    console.log(error);
                    notifyDeleteError(`Name cannot be null`);
                }}
                getRowHeight={() => 'auto'}
                processRowUpdate={processRowUpdate}
            paginationModel={paginationModel}
            onPaginationModelChange={setPaginationModel}
                slots={{
                    toolbar: EditToolbar,
                    noRowsOverlay: () => (
                        CustomNoRowsOverlay()
                    )
                }}
                pageSizeOptions={[15]}
                slotProps={{
                    toolbar: {setRows, setRowModesModel},
                }}
                autoHeight
            />
            <GeneralConfirmWindow
                isWindowOpen={isWindowOpen}
                title={"Attention"}
                //content={`Confirm to delete Category ${getObjectById(rows,selectedId) === null? "" : '"' + getObjectById(rows,selectedId).name + '"'} ?`}
                content={`Are you sure to delete this category?`}
                onNormalClose={handleClose}
                onConfirmClose={updateData}
            />
        </div>
    );
}