import { ActivityLogSidebar } from '@/components/activity-log/ActivityLogSidebar';
import { useModelActivityLog } from '@/components/activity-log/useModelActivityLog';
import { DataTable } from '@/components/datatable';
import { FilterConfig } from '@/components/datatable-toolbar';
import { BulkStatusEditModal } from '@/components/modals/bulk-status-edit-modal';
import { BulkExportModal } from '@/components/modals/bulkExportModal';
import { Button } from '@/components/ui/button';
import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from '@/components/ui/dropdown-menu';
import { useModal } from '@/components/ui/modal';
import AppLayout from '@/layouts/app-layout';
import { fetchDatatable } from '@/lib/datatable-fetch';
import { type PaginatedData } from '@/types';
import { Head, Link, router, usePage } from '@inertiajs/react';
import { ColumnDef } from '@tanstack/react-table';

import StatusSelector from '@/components/status-selector';
import {
    AlertDialog,
    AlertDialogAction,
    AlertDialogCancel,
    AlertDialogContent,
    AlertDialogDescription,
    AlertDialogFooter,
    AlertDialogHeader,
    AlertDialogTitle,
    AlertDialogTrigger,
} from '@/components/ui/alert-dialog';
import { Activity, CheckCircle, Download, Eye, List, MoreHorizontal, Pencil, Plus, Trash2, Upload, XCircle } from 'lucide-react';
import { ReactNode, useEffect, useState } from 'react';

// Project globals (Ziggy / Inertia route helper)
declare const route: (...args: any[]) => string;

interface SummaryItem {
    title: string;
    value: number;
}

interface $STUDLY_NAME$Data {
    id: number;
    title: string;
    description: string;
    status: number;
    created_at: string;
    updated_at: string;
}

type $STUDLY_NAME$IndexData = PaginatedData<$STUDLY_NAME$Data> & { summary?: SummaryItem[] };
type $STUDLY_NAME$IndexProps = { data: $STUDLY_NAME$IndexData };

function Index() {
    const { data } = usePage<$STUDLY_NAME$IndexProps>().props;
    const [selectedItemsForStatus, setSelectedItemsForStatus] = useState<$STUDLY_NAME$Data[]>([]);

    const [selectedItemsForExport, setSelectedItemsForExport] = useState<$STUDLY_NAME$Data[]>([]);

    const [selectAllAcrossPages, setSelectAllAcrossPages] = useState(false);
    const [selectedColumns, setSelectedColumns] = useState<string[]>([]);

    // Removed CSV inline import modal in favor of redirect to import index

    const { isOpen: isStatusModalOpen, openModal: openStatusModal, closeModal: closeStatusModal } = useModal();
    const { isOpen: isBulkExportModalOpen, openModal: openBulkExportModal, closeModal: closeBulkExportModal } = useModal();

    const handleColumnChange = (columnValue: string, checked: boolean) => {
        if (checked) {
            setSelectedColumns((prev) => [...prev, columnValue]);

        } else {
            setSelectedColumns((prev) => prev.filter((col) => col !== columnValue));
        }
    };

    // Local client-side datatable state to avoid exposing query params in URL
    const [clientData, setClientData] = useState<any>(data);
    const [summary, setSummary] = useState<SummaryItem[]>(data.summary ?? []);


    const tableFilters: FilterConfig[] = [
        {
            type: 'searchable-multiselect',
            label: 'Status',
            name: 'status',
            value: clientData.queryParams.status || '',
            options: [
                { label: 'Active', value: 1},
                { label: 'Inactive', value: 0 },
            ],
        },
        {
            type: 'date-range',
            label: 'Created At',
            name: 'created_at',
            value: '',
        },
    ];

    // bulk actions config
    const bulkActions = [
        {
            label: 'Export Data',
            icon: Download,
            confirm: false,
            className: '',
            onClick: (items: $STUDLY_NAME$Data[]) => {
                // If user opted to use full fetched set override items
                setSelectedItemsForExport(items);
                openBulkExportModal();
            },
        },
        {
            label: 'Status Update',
            icon: List,
            confirm: false,
            className: '',
            onClick: (items: $STUDLY_NAME$Data[]) => {
                setSelectedItemsForStatus(items);
                openStatusModal();
            },
        },
    ].filter(Boolean); // ⬅ removes false

    const activityLogCtl = useModelActivityLog();

    // Reset cross-page selection if query (filters, page, per_page) changes to avoid stale 'all selected' state
    useEffect(() => {
        // Whenever the underlying query params change (data refresh), clear select-all-across-pages flag
        setSelectAllAcrossPages(false);
    }, [
        clientData.queryParams.page,
        clientData.queryParams.per_page,
        clientData.queryParams.search,
        clientData.queryParams.category,
        clientData.queryParams.status,
    ]);

    const handleActivitySidebar = () => {
        return activityLogCtl.show({ modelClass: '$STUDLY_NAME$', title: '$STUDLY_NAME$ Model Activity' });
    };



    const handleDelete$STUDLY_NAME$ = (id: number | string) => {
        router.delete(route('$KEBAB_NAME$.destroy', id), {
            onSuccess: () => {
                setTimeout(() => {
                    refetch$STUDLY_NAME$s();
                }, 100);
            },
            onError: (errors) => {
                console.error('Delete failed:', errors);
            }
        });
    };

    const refetch$STUDLY_NAME$s = async () => {
        const url = route('$KEBAB_NAME$.index');
        const json = await fetchDatatable<$STUDLY_NAME$Data>(url, clientData.queryParams);
        setClientData(prevData => ({
            ...prevData,
            data: json.data,
            meta: json.meta,
            queryParams: prevData.queryParams,
            links: {
                prev: json.meta.current_page > 1 ? '' : null,
                next: json.meta.current_page < json.meta.last_page ? '' : null,
            },
        }));
        if ((json as any).summary) {
            setSummary((json as any).summary as any);
        }
    };

    const handle$STUDLY_NAME$Status = (id: number, status: string) => {
        router.put(route('$KEBAB_NAME$.status', id), { status: status }, {
            onSuccess: () => {
                refetch$STUDLY_NAME$s();
            },
            onError: (errors) => {
                console.error('Status update failed:', errors);
            },
        });
    };

    // Build bulk status options with colors
    const bulkStatusOptions = clientData?.statuses?.map((status: any) => {
        // Map status values to colors
        const getStatusColor = (value: string | number) => {
            switch (value) {
                case 'ACTIVE':
                    return 'border-brand-900 text-green-900';
                case 'INACTIVE':
                    return 'border-gray-500 text-gray-500';
            }
        };

        // Map string status to numeric value for modal compatibility
        const getNumericValue = (value: string) => {
            switch (value) {
                case 'ACTIVE':
                    return 1;
                case 'INACTIVE':
                    return 0;
                default:
                    return 0;
            }
        };

        return {
            value: getNumericValue(status?.value),
            label: status?.label,
            color: getStatusColor(status?.value),
        };
    });

    // $STUDLY_NAME$ columns definition
    const dataColumns: (ColumnDef<$STUDLY_NAME$Data> & { enableSorting?: boolean })[] = [
        {
            accessorKey: 'id',
            header: 'ID',
            enableSorting: true,
        },
        {
            accessorKey: 'title',
            header: 'Title',
            enableSorting: true,
        },
        {
            accessorKey: 'description',
            header: 'Description',
            enableSorting: true,
            cell: ({ row }) => (
                <div className="max-w-xs truncate" title={row.original.description}>
                    {row.original.description}
                </div>
            ),
        },
        {
            accessorKey: 'status',
            header: 'Status',
            enableSorting: true,

            cell: ({ row }) => {
               const status = (row.original.status || 0) as number;
                return (
                    <StatusSelector
                        id={row.original.id}
                        handleStatusUpdate={handle$STUDLY_NAME$Status}
                        status={status}
                        statusOptions={clientData?.statuses}
                    />
                );
            },
        },
        {
            accessorKey: 'created_at',
            header: 'Created At',
            enableSorting: true,
            cell: ({ row }) => (
                <div className="text-sm text-gray-600">
                    {new Date(row.original.created_at).toLocaleDateString()}
                </div>
            ),
        },
        {
            id: 'actions',
            header: 'Actions',
            cell: ({ row }) => (
                <DropdownMenu>
                    <DropdownMenuTrigger asChild>
                        <Button variant="ghost" size="icon" className="h-8 w-8 p-0">
                            <span className="sr-only">Open menu</span>
                            <MoreHorizontal className="h-4 w-4" />
                        </Button>
                    </DropdownMenuTrigger>

                    <DropdownMenuContent align="end" className="w-48">
                        <DropdownMenuItem asChild>
                            <Link href={route('$KEBAB_NAME$.show', row.original.id)} className="flex items-center">
                                <Eye className="mr-2 h-4 w-4 text-blue-500" />
                                View Details
                            </Link>
                        </DropdownMenuItem>

                        <DropdownMenuItem asChild>
                            <Link href={route('$KEBAB_NAME$.edit', row.original.id)} className="flex items-center">
                                <Pencil className="mr-2 h-4 w-4 text-success" />
                                Edit $STUDLY_NAME$
                            </Link>
                        </DropdownMenuItem>

                        <AlertDialog>
                            <AlertDialogTrigger asChild>
                                <DropdownMenuItem
                                    className="flex items-center text-red-600 focus:bg-red-50 focus:text-red-600"
                                    onSelect={(e: Event) => e.preventDefault()}
                                >
                                    <Trash2 className="mr-2 h-4 w-4" />
                                    Delete $STUDLY_NAME$
                                </DropdownMenuItem>
                            </AlertDialogTrigger>
                            <AlertDialogContent>
                                <AlertDialogHeader>
                                    <AlertDialogTitle>Are you absolutely sure?</AlertDialogTitle>
                                    <AlertDialogDescription>
                                        This action cannot be undone. This will permanently delete this $LOWER_NAME$.
                                    </AlertDialogDescription>
                                </AlertDialogHeader>
                                <AlertDialogFooter>
                                    <AlertDialogCancel>Cancel</AlertDialogCancel>
                                    <AlertDialogAction onClick={() => handleDelete$STUDLY_NAME$(row.original.id)} className="bg-red-600 hover:bg-red-700">
                                        Delete
                                    </AlertDialogAction>
                                </AlertDialogFooter>
                            </AlertDialogContent>
                        </AlertDialog>
                    </DropdownMenuContent>
                </DropdownMenu>
            ),
        },
    ];
    return (
        <>
            <Head title="$STUDLY_NAME$ List" />
            <div className="no-scrollbar rounded-xl p-2">
                <div className="">
                    {/* Custom Section Header matching the design */}
                    <div className="mb-6 flex flex-col items-start justify-between gap-4 sm:flex-row sm:items-center">
                        <div className="grid grid-cols-1 gap-1">
                            <h2 className="text-xl font-bold sm:text-2xl">$STUDLY_NAME$ List</h2>
                            <div className="flex items-center text-sm text-gray-600">
                                <span>$STUDLY_NAME$ Management</span>
                                <span className="mx-2">›</span>
                                <span>$STUDLY_NAME$ List</span>
                            </div>
                        </div>
                        <div className="flex flex-wrap gap-2 sm:gap-4">
                            <Link href={route('$KEBAB_NAME$.create')} >
                                <Button className="bg-success text-white hover:bg-brand-800" size="sm">
                                    <div className="flex items-center gap-2">
                                        <Plus className="size-4" />
                                        <span className="hidden sm:inline">Add $STUDLY_NAME$</span>
                                    </div>
                                </Button>
                            </Link>


                            {/* Import Items */}
                            <Link href={route('$KEBAB_NAME$.import')}>
                                <Button variant="outline" size="sm">
                                    <div className="flex items-center gap-2">
                                        <Upload className="size-4" />
                                        <span className="hidden sm:inline">Import</span>
                                    </div>
                                </Button>
                            </Link>
                        </div>
                    </div>

                    {/* $STUDLY_NAME$ Statistics Cards */}
                    {summary && summary.length > 0 && (
                        <div className="mb-4 grid gap-4 grid-cols-1 sm:grid-cols-2 lg:grid-cols-3">
                            {summary.map((s: SummaryItem, idx: number) => (
                                <div key={idx} className="rounded-lg border bg-card p-4">
                                    <div className="flex items-center justify-between">
                                        <div>
                                            <p className="text-sm font-medium text-gray-600">{s?.title || ''}</p>
                                            <p className="text-2xl font-bold text-gray-900">{s.value}</p>
                                        </div>
                                        <div className="rounded-full bg-blue-100 p-3">
                                            <div className="h-6 w-6 text-blue-600">📊</div>
                                        </div>
                                    </div>
                                </div>
                            ))}
                        </div>
                    )}
                    <div className="w-96 sm:w-full">
                        <DataTable
                            columns={dataColumns}
                            data={clientData.data}
                            paginatedData={clientData}
                            bulkActions={bulkActions}
                            tableKey="items-table"
                            filters={tableFilters}
                            enableRowClick={false} // disable whole-row navigation
                            fullHeight={false}
                            selectAllActive={selectAllAcrossPages}
                            onSelectAllAcrossPages={() => setSelectAllAcrossPages(true)}
                            onClearSelectAllAcrossPages={() => setSelectAllAcrossPages(false)}
                            handleActivitySidebar={handleActivitySidebar}
                            onNavigate={async (params) => {
                                const url = route('$KEBAB_NAME$.index');
                                const json = await fetchDatatable<$STUDLY_NAME$Data>(url, params);
                                setClientData((prevData) => ({
                                    ...prevData,
                                    data: json.data,
                                    meta: json.meta,
                                    queryParams: params,
                                    links: {
                                        prev: json.meta.current_page > 1 ? '' : null,
                                        next: json.meta.current_page < json.meta.last_page ? '' : null,
                                    },
                                }));
                                if ((json as any).summary) {
                                    setSummary((json as any).summary as any);
                                }
                            }}
                                // Navigate to the same page with new query parameters
                            }}
                        />
                    </div>
                </div>
            </div>
            {/* Bulk Status Edit Modal */}
            <BulkStatusEditModal
                open={isStatusModalOpen}
                onOpenChange={closeStatusModal}
                selectedUsers={selectedItemsForStatus}
                selectAll={selectAllAcrossPages}
                totalCount={clientData?.meta?.total}
                currentFilters={clientData.queryParams}
                statusOptions={bulkStatusOptions}
                apiRoute="$PLURAL_LOWER_NAME$.bulk-action"
                onSuccess={() => {
                    setSelectedItemsForStatus([]);
                    refetch$STUDLY_NAME$s();
                }}
            />
            {/* CSV Import modal removed: navigation now goes to $KEBAB_NAME$.import route */}

            {/* Bulk Export Modal */}
            <BulkExportModal
                open={isBulkExportModalOpen}
                onOpenChange={closeBulkExportModal}
                selectedUsers={selectedItemsForExport}
                selectAll={selectAllAcrossPages}
                totalCount={clientData?.meta?.total}
                currentFilters={clientData.queryParams}
                onSuccess={() => {
                    setSelectedItemsForExport([]);

                    // Optionally show a success message
                }}
                config={{
                    route: '$KEBAB_NAME$.export',
                    payload: {
                        type: 'export',
                        ids: selectedItemsForExport.map((item) => item.id),
                        data: {
                            columns: selectedColumns,
                        },
                    },
                }}
                handleColumnChange={handleColumnChange}
                selectedColumns={selectedColumns}
                title="Export $STUDLY_NAME$s"
                itemName="$LOWER_NAME$"
            />
            <ActivityLogSidebar
                open={activityLogCtl.open}
                onOpenChange={activityLogCtl.setOpen}
                modelClass={activityLogCtl.modelClass}
                modelId={activityLogCtl.modelId}
                title={activityLogCtl.title}
            />
        </>
    );
}

Index.layout = (page: ReactNode) => (
    <AppLayout
        breadcrumbs={[
            { title: 'Home', href: '/' },
            { title: 'Items', href: '#' },
        ]}
        title="Items"
    >
        {page}
    </AppLayout>
);

export default Index;