import { adminToast } from '@admin/components/ui/admin-toast';
import { CreatePageLayout } from '@admin/components/ui/create-page-layout';
import { DataTable, type DataTableColumn } from '@admin/components/ui/data-table';
import { DeleteConfirmationModal } from '@admin/components/ui/delete-confirmation-modal';
import { formClassName } from '@admin/components/ui/field-styles';
import { useCrudPermissions } from '@admin/hooks/use-crud-permissions';
import { useFormResponse } from '@admin/hooks/use-form-response';
import { dashboardPersistentLayout } from '@admin/layouts/dashboard-page-layout';
import { AdministrativeUnitFormFields } from '@admin/pages/administrative-units/administrative-unit-form-fields';
import EditAdministrativeUnit from '@admin/pages/administrative-units/edit-administrative-unit';
import { Head, useForm } from '@inertiajs/react';
import { FormEvent, useState } from 'react';

type UnitSummary = {
    id: number;
    name: string;
    status: boolean;
};

type UnitRecord = UnitSummary & {
    slug?: string | null;
    address?: string | null;
    sort_order?: number;
};

type CreateAdministrativeUnitProps = {
    units: UnitSummary[];
};

const sidebarColumns: DataTableColumn<UnitSummary>[] = [
    { header: 'Name', key: 'name', truncate: true, className: 'w-[50%]' },
    { header: 'Status', key: 'status', className: 'w-24' },
];

function CreateAdministrativeUnit({ units }: CreateAdministrativeUnitProps) {
    const { canEdit, canDelete } = useCrudPermissions('administrative-unit');
    const [isEditModalOpen, setIsEditModalOpen] = useState(false);
    const [initialData, setInitialData] = useState<UnitRecord | null>(null);
    const [deleteModal, setDeleteModal] = useState<{ show: boolean; unit: UnitSummary | null }>({
        show: false,
        unit: null,
    });

    const { data, setData, post, processing, errors, reset } = useForm({
        name: '',
        slug: '',
        address: '',
        sort_order: 0,
        status: true,
    });

    const action = useFormResponse({ onComplete: reset, loadingMessage: 'Creating unit...' });

    const handleEdit = async (row: UnitSummary) => {
        try {
            const response = await fetch(`/admin/edit_administrative_unit/${row.id}`);
            if (!response.ok) {
                throw new Error('Failed to fetch unit');
            }

            const unitData = (await response.json()) as UnitRecord;
            setInitialData(unitData);
            setIsEditModalOpen(true);
        } catch {
            adminToast.error('Could not load unit details');
        }
    };

    const handleSubmit = (event: FormEvent) => {
        event.preventDefault();

        post('/admin/api/create_administrative_unit', {
            onStart: action.onStart,
            onSuccess: action.onSuccess,
            onError: action.onError,
            preserveScroll: true,
        });
    };

    return (
        <>
            <Head title="Create administrative unit" />

            <CreatePageLayout
                indexHref={route('admin.administrative-units')}
                form={
                    <div className="box">
                        <div className="box-header">
                            <h5 className="box-title">Add administrative unit</h5>
                        </div>
                        <div className="box-body">
                            <form className={formClassName} noValidate onSubmit={handleSubmit}>
                                <AdministrativeUnitFormFields data={data} errors={errors} setData={setData} />
                                <button type="submit" className="ti-btn ti-btn-primary" disabled={processing}>
                                    Save
                                </button>
                            </form>
                        </div>
                    </div>
                }
                sidebar={
                    <DataTable
                        data={units}
                        columns={sidebarColumns}
                        title="Units"
                        compact
                        onEdit={canEdit ? handleEdit : undefined}
                        onDelete={canDelete ? (row) => setDeleteModal({ show: true, unit: row }) : undefined}
                        showEdit={canEdit}
                        showDelete={canDelete}
                        noDataText="No units yet"
                    />
                }
            />

            <DeleteConfirmationModal
                isOpen={deleteModal.show}
                onClose={() => setDeleteModal({ show: false, unit: null })}
                itemName={deleteModal.unit?.name ?? 'this unit'}
                itemType="administrative unit"
                deleteEndpoint={`/admin/api/delete_administrative_unit/${deleteModal.unit?.id ?? ''}`}
                loadingMessage="Deleting unit..."
            />

            <EditAdministrativeUnit
                isOpen={isEditModalOpen}
                onClose={() => setIsEditModalOpen(false)}
                initialData={initialData}
            />
        </>
    );
}

export default Object.assign(CreateAdministrativeUnit, {
    layout: dashboardPersistentLayout('Create administrative unit', 'Add a center that staff and documents belong to'),
});