import { useEffect, Fragment, useState, useCallback } from 'react';
import { useDispatch } from 'react-redux';
import 'mantine-datatable/styles.css';
import { Dialog, Transition } from '@headlessui/react';
import { setPageTitle } from '../../store/themeConfigSlice';
import Link from 'next/link';
import ProtectedRoute from '@/components/ProtectedRoute';
import { coloredToast } from '@/lib/toast';
import { logActivity } from '@/utils/activityLogger';
import { DataTable } from '@/components/Shared/DataTable';

interface Categories {
    id: string;
    coupon: string;
    total: number;
}
const CouponCategories = () => {
    const dispatch = useDispatch();

    useEffect(() => {
        setIsMounted(true);
    }, []);

    useEffect(() => {
        dispatch(setPageTitle('Coupon'));
    }, []);

    const [addCategoryModal, setAddCategoryModal] = useState<any>(false);

    const defaultCategory = {
        category_name: '',
        category_name_updated: '',
    };
    const [couponCategory, setCouponCategory] = useState(defaultCategory);

    const [isLoading, setIsLoading] = useState(true); // Add isLoading state
    const [isMounted, setIsMounted] = useState(false);

    const [page, setPage] = useState(1);
    const PAGE_SIZES = [5, 10, 20, 30, 50, 100];
    const [pageSize, setPageSize] = useState(PAGE_SIZES[0]);
    const [records, setRecords] = useState<Categories[]>([]);
    const [totalRecords, setTotalRecords] = useState(0);
    const [search, setSearch] = useState('');
    const [initialCategory, setInitialCategory] = useState<{ category_name: string } | null>(null);



    // Fetch data from API
    const fetchData = useCallback(async () => {
        setIsLoading(true); // Set isLoading to true before fetching data
        try {
            const api_url = process.env.API_URL;
            const response = await fetch(`${api_url}api/coupons/categories?page=${page}&per_page=${pageSize}&q=${search}`, {
                method: 'GET',
                headers: {
                    'Content-Type': 'application/json',
                },
                credentials: 'include', // Include this option
            });
            const data = await response.json();

            setPage(data.currentPage);
            setTotalRecords(data.totalData);
            setRecords(data.data);

            setIsLoading(false); // Set isLoading to false after data is fetched
        } catch (error) {
            console.error('Error fetching data:', error);
            setIsLoading(false); // Set isLoading to false even if there's an error
        }
    }, [page, pageSize, search]);

    useEffect(() => {
        fetchData();
    }, [page, pageSize, fetchData]);

    const handleKeypress = (event: React.KeyboardEvent<HTMLInputElement>) => {
        if (event.keyCode === 13) {
            if (page !== 1) {
                setPage(1);
            } else {
                fetchData();
            }
        }
    };

    const editCategory = (category: string | null = null) => {
        if (category) {
            setInitialCategory({ category_name: category }); // simpan nilai awal
            setCouponCategory({
                category_name: category,
                category_name_updated: category,
            });
        } else {
            setInitialCategory(null);
            setCouponCategory(defaultCategory);
        }
        setAddCategoryModal(true);
    };
    

    const changeValue = (e: any) => {
        setCouponCategory((prev) => {
            return {
                ...prev,
                category_name: e.target.value,
            };
        });
    };

    const getCategoryChangeDescription = () => {
        if (!initialCategory) return `Created new category: ${couponCategory.category_name}`;
        if (initialCategory.category_name !== couponCategory.category_name) {
            return `Category name: ${initialCategory.category_name} -> ${couponCategory.category_name}`;
        }
        return 'No changes made.';
    };
    
    

    const saveCouponCategory = async () => {
        try {
            const api_url = process.env.API_URL;
            const action = couponCategory.category_name_updated ? 'update' : 'add';
            const method = action === 'update' ? '/update' : '/add';
            const fetchUrl = `${api_url}api/setting/coupon-categories${method}`;
            const payload = {
                category: couponCategory.category_name,
                category_updated: couponCategory.category_name_updated,
            };
            const response = await fetch(fetchUrl, {
                method: 'PATCH',
                headers: {
                    'Content-Type': 'application/json',
                },
                credentials: 'include', // Include this option
                body: JSON.stringify(payload),
            });
            if (!response.ok) {
                const res = await response.json();
                throw new Error(res.message);
            }
            coloredToast('success', `coupon category ${action === 'update' ? 'updated' : 'created'} successfully`);
            const changeDescription = getCategoryChangeDescription();
            await logActivity({
                location: 'Coupon Category',
                description: `Coupon category ${couponCategory.category_name_updated ? 'edited' : 'added'}: ${changeDescription}`,
            });
            fetchData();
        } catch (error: any) {
            console.error(error);
            await logActivity({
                location: 'Coupon Category',
                description: `Coupon category gagal di update: ${error.message}`,
            });
            coloredToast('warning', `${error.message || 'something went wrong'}`);
        }
        setAddCategoryModal(false);
    };

    return (
        <>
            {isMounted && (
                    <>
                        <div className="mb-3">
                            <ul className="flex space-x-2 rtl:space-x-reverse">
                                <li>
                                    <Link href="/coupons" className="text-primary hover:underline">
                                        Coupons
                                    </Link>
                                </li>
                                <li className="before:content-['/'] ltr:before:mr-2 rtl:before:ml-2">
                                    <span>categories</span>
                                </li>
                            </ul>
                        </div>
                        <div className="panel border-white-light px-0 dark:border-[#1b2e4b]">
                            <div className="invoice-table">
                                <div className="mb-4.5 flex flex-col gap-5 px-5 md:flex-row md:items-center">
                                    <div className="flex items-center gap-2">
                                        <button onClick={() => editCategory()} className="btn btn-outline-primary gap-2">
                                            <svg className="h-5 w-5" viewBox="0 0 24 24" stroke="currentColor" strokeWidth="1.5" fill="none" strokeLinecap="round" strokeLinejoin="round">
                                                <line x1="12" y1="5" x2="12" y2="19"></line>
                                                <line x1="5" y1="12" x2="19" y2="12"></line>
                                            </svg>
                                            Add New Category
                                        </button>
                                    </div>
                                    <div className="flex ltr:ml-auto rtl:mr-auto">
                                        <input
                                            type="text"
                                            className="form-input w-auto"
                                            placeholder="Search Coupon Name"
                                            value={search}
                                            onChange={(e) => setSearch(e.target.value)}
                                            onKeyDown={handleKeypress}
                                        />
                                    </div>
                                </div>
                                <div className="datatables pagination-padding">
                                    {isLoading ? (
                                        // Show loading indicator here
                                        <div className="flex justify-center py-4 text-center">
                                            <svg
                                                viewBox="0 0 24 24"
                                                width="24"
                                                height="24"
                                                stroke="currentColor"
                                                strokeWidth="1.5"
                                                fill="none"
                                                strokeLinecap="round"
                                                strokeLinejoin="round"
                                                className="h-5 w-5 animate-spin text-white-dark"
                                            >
                                                <line x1="12" y1="2" x2="12" y2="6"></line>
                                                <line x1="12" y1="18" x2="12" y2="22"></line>
                                                <line x1="4.93" y1="4.93" x2="7.76" y2="7.76"></line>
                                                <line x1="16.24" y1="16.24" x2="19.07" y2="19.07"></line>
                                                <line x1="2" y1="12" x2="6" y2="12"></line>
                                                <line x1="18" y1="12" x2="22" y2="12"></line>
                                                <line x1="4.93" y1="19.07" x2="7.76" y2="16.24"></line>
                                                <line x1="16.24" y1="7.76" x2="19.07" y2="4.93"></line>
                                            </svg>
                                            <span className="ms-3">Please wait, we&apos;re still working to load the data...</span>
                                        </div>
                                    ) : (
                                        <DataTable
                                            className="table-hover whitespace-nowrap"
                                            records={records}
                                            minHeight={250}
                                            noRecordsText="No data found"
                                            columns={[
                                                {
                                                    accessor: 'coupon',
                                                    title: 'Category name',
                                                },

                                                {
                                                    accessor: 'total',
                                                    title: 'Total coupon',
                                                    render: ({ total }) => (
                                                        <>
                                                            {total} coupon{total > 1 ? "'s" : ''}
                                                        </>
                                                    ),
                                                },

                                                {
                                                    accessor: 'action',
                                                    title: 'Actions',
                                                    textAlign: 'center',
                                                    render: ({ coupon }) => (
                                                        <div className="mx-auto flex w-max items-center gap-4">
                                                            <button onClick={() => editCategory(coupon)}>
                                                                <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg" className="h-4.5 w-4.5">
                                                                    <path
                                                                        opacity="0.5"
                                                                        d="M22 10.5V12C22 16.714 22 19.0711 20.5355 20.5355C19.0711 22 16.714 22 12 22C7.28595 22 4.92893 22 3.46447 20.5355C2 19.0711 2 16.714 2 12C2 7.28595 2 4.92893 3.46447 3.46447C4.92893 2 7.28595 2 12 2H13.5"
                                                                        stroke="currentColor"
                                                                        strokeWidth="1.5"
                                                                        strokeLinecap="round"
                                                                    ></path>
                                                                    <path
                                                                        d="M17.3009 2.80624L16.652 3.45506L10.6872 9.41993C10.2832 9.82394 10.0812 10.0259 9.90743 10.2487C9.70249 10.5114 9.52679 10.7957 9.38344 11.0965C9.26191 11.3515 9.17157 11.6225 8.99089 12.1646L8.41242 13.9L8.03811 15.0229C7.9492 15.2897 8.01862 15.5837 8.21744 15.7826C8.41626 15.9814 8.71035 16.0508 8.97709 15.9619L10.1 15.5876L11.8354 15.0091C12.3775 14.8284 12.6485 14.7381 12.9035 14.6166C13.2043 14.4732 13.4886 14.2975 13.7513 14.0926C13.9741 13.9188 14.1761 13.7168 14.5801 13.3128L20.5449 7.34795L21.1938 6.69914C22.2687 5.62415 22.2687 3.88124 21.1938 2.80624C20.1188 1.73125 18.3759 1.73125 17.3009 2.80624Z"
                                                                        stroke="currentColor"
                                                                        strokeWidth="1.5"
                                                                    ></path>
                                                                    <path
                                                                        opacity="0.5"
                                                                        d="M16.6522 3.45508C16.6522 3.45508 16.7333 4.83381 17.9499 6.05034C19.1664 7.26687 20.5451 7.34797 20.5451 7.34797M10.1002 15.5876L8.4126 13.9"
                                                                        stroke="currentColor"
                                                                        strokeWidth="1.5"
                                                                    ></path>
                                                                </svg>
                                                            </button>
                                                        </div>
                                                    ),
                                                },
                                            ]}
                                            highlightOnHover
                                            totalRecords={totalRecords}
                                            recordsPerPage={pageSize}
                                            page={page}
                                            onPageChange={(p) => setPage(p)}
                                            recordsPerPageOptions={PAGE_SIZES}
                                            onRecordsPerPageChange={setPageSize}
                                            paginationText={({ from, to, totalRecords }) => `Showing  ${from} to ${to} of ${totalRecords} categories`}
                                        />
                                    )}
                                </div>
                            </div>
                        </div>

                        <Transition appear show={addCategoryModal} as={Fragment}>
                            <Dialog as="div" open={addCategoryModal} onClose={() => setAddCategoryModal(false)} className="relative z-50">
                                <Transition.Child
                                    as={Fragment}
                                    enter="ease-out duration-300"
                                    enterFrom="opacity-0"
                                    enterTo="opacity-100"
                                    leave="ease-in duration-200"
                                    leaveFrom="opacity-100"
                                    leaveTo="opacity-0"
                                >
                                    <div className="fixed inset-0 bg-[black]/60" />
                                </Transition.Child>
                                <div className="fixed inset-0 overflow-y-auto">
                                    <div className="flex min-h-full items-center justify-center px-4 py-8">
                                        <Transition.Child
                                            as={Fragment}
                                            enter="ease-out duration-300"
                                            enterFrom="opacity-0 scale-95"
                                            enterTo="opacity-100 scale-100"
                                            leave="ease-in duration-200"
                                            leaveFrom="opacity-100 scale-100"
                                            leaveTo="opacity-0 scale-95"
                                        >
                                            <Dialog.Panel className="panel w-full max-w-lg overflow-hidden rounded-lg border-0 p-0 text-black dark:text-white-dark">
                                                <button
                                                    type="button"
                                                    onClick={() => setAddCategoryModal(false)}
                                                    className="absolute top-4 text-gray-400 outline-none hover:text-gray-800 ltr:right-4 rtl:left-4 dark:hover:text-gray-600"
                                                >
                                                    <svg
                                                        xmlns="http://www.w3.org/2000/svg"
                                                        width="24"
                                                        height="24"
                                                        viewBox="0 0 24 24"
                                                        fill="none"
                                                        stroke="currentColor"
                                                        strokeWidth="1.5"
                                                        strokeLinecap="round"
                                                        strokeLinejoin="round"
                                                    >
                                                        <line x1="18" y1="6" x2="6" y2="18"></line>
                                                        <line x1="6" y1="6" x2="18" y2="18"></line>
                                                    </svg>
                                                </button>
                                                <div className="bg-[#fbfbfb] py-3 text-lg font-medium ltr:pl-5 ltr:pr-[50px] rtl:pl-[50px] rtl:pr-5 dark:bg-[#121c2c]">
                                                    {couponCategory.category_name_updated ? 'Edit Category' : 'Add Category'}
                                                </div>
                                                <div className="p-5">
                                                    <form>
                                                        <div className="mb-5">
                                                            <label htmlFor="name">Category Name</label>
                                                            <input
                                                                id="category_name"
                                                                type="text"
                                                                placeholder="Enter Category Name"
                                                                className="form-input"
                                                                value={couponCategory.category_name}
                                                                onChange={(e) => changeValue(e)}
                                                            />
                                                        </div>
                                                        <div className="mt-8 flex items-center justify-end">
                                                            <button type="button" className="btn btn-outline-danger" onClick={() => setAddCategoryModal(false)}>
                                                                Cancel
                                                            </button>
                                                            <button type="button" className="btn btn-primary ltr:ml-4 rtl:mr-4" onClick={saveCouponCategory}>
                                                                {couponCategory.category_name_updated ? 'Update' : 'Add'}
                                                            </button>
                                                        </div>
                                                    </form>
                                                </div>
                                            </Dialog.Panel>
                                        </Transition.Child>
                                    </div>
                                </div>
                            </Dialog>
                        </Transition>
                    </>
                )}
        </>
    );
};
export default CouponCategories;