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 { useCrudPermissions } from '@admin/hooks/use-crud-permissions';
import { DeleteConfirmationModal } from '@admin/components/ui/delete-confirmation-modal';
import { formClassName } from '@admin/components/ui/field-styles';
import type { PermissionSection } from '@admin/components/ui/forms/permission-matrix';
import { useFormResponse } from '@admin/hooks/use-form-response';
import { dashboardPersistentLayout } from '@admin/layouts/dashboard-page-layout';
import EditPermissionGroup from '@admin/pages/permission-groups/edit-permission-group';
import { PermissionGroupFormFields } from '@admin/pages/permission-groups/permission-group-form-fields';
import { Head, useForm } from '@inertiajs/react';
import { FormEvent, useState } from 'react';

type PermissionGroupSummary = {
    id: number | null;
    name: string;
    slug: string;
    description: string | null;
    permissions_count: number;
    is_system: boolean;
};

type CreatePermissionGroupProps = {
    groups: PermissionGroupSummary[];
    permissionSections: PermissionSection[];
};

const sidebarColumns: DataTableColumn<PermissionGroupSummary>[] = [
    { header: 'Name', key: 'name', truncate: true, className: 'w-[40%]' },
    { header: 'Permissions', key: 'permissions_count', className: 'w-24' },
    {
        header: 'Type',
        key: 'is_system',
        className: 'w-20',
        render: (row) => (row.is_system ? 'Module' : 'Custom'),
    },
];

function CreatePermissionGroup({ groups, permissionSections }: CreatePermissionGroupProps) {
    const { canEdit, canDelete } = useCrudPermissions('role');
    const [isEditModalOpen, setIsEditModalOpen] = useState(false);
    const [initialData, setInitialData] = useState<(PermissionGroupSummary & { permissions?: string[] }) | null>(null);
    const [deleteModal, setDeleteModal] = useState<{ show: boolean; group: PermissionGroupSummary | null }>({
        show: false,
        group: null,
    });

    const { data, setData, post, processing, errors, reset } = useForm({
        name: '',
        description: '',
        permissions: [] as string[],
    });

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

    const handleEdit = async (row: PermissionGroupSummary) => {
        if (row.id === null) {
            return;
        }

        try {
            const response = await fetch(`/admin/edit_permission_group/${row.id}`);
            if (!response.ok) {
                throw new Error('Failed to fetch permission group');
            }

            const groupData = (await response.json()) as PermissionGroupSummary & { permissions: string[] };
            setInitialData(groupData);
            setIsEditModalOpen(true);
        } catch {
            adminToast.error('Could not load permission group details');
        }
    };

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

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

    return (
        <>
            <Head title="Create permission group" />

            <CreatePageLayout
                indexHref={route('admin.permission-groups')}
                form={
                    <div className="box">
                        <div className="box-header">
                            <h5 className="box-title">Add custom permission group</h5>
                        </div>
                        <div className="box-body">
                            <form className={formClassName} noValidate onSubmit={handleSubmit}>
                                <PermissionGroupFormFields
                                    name={data.name}
                                    description={data.description}
                                    permissions={data.permissions}
                                    permissionSections={permissionSections}
                                    errors={errors}
                                    onNameChange={(value) => setData('name', value)}
                                    onDescriptionChange={(value) => setData('description', value)}
                                    onPermissionsChange={(permissions) => setData('permissions', permissions)}
                                />
                                <button type="submit" className="ti-btn ti-btn-primary" disabled={processing}>
                                    Save
                                </button>
                            </form>
                        </div>
                    </div>
                }
                sidebar={
                    <DataTable
                        data={groups}
                        columns={sidebarColumns}
                        title="Permission groups"
                        compact
                        onEdit={canEdit ? handleEdit : undefined}
                        onDelete={canDelete ? (row) => setDeleteModal({ show: true, group: row }) : undefined}
                        canEditRow={(row) => !row.is_system}
                        canDeleteRow={(row) => !row.is_system}
                        showEdit={canEdit}
                        showDelete={canDelete}
                        noDataText="No groups yet"
                    />
                }
            />

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

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

export default Object.assign(CreatePermissionGroup, {
    layout: dashboardPersistentLayout('Create permission group', 'Bundle permissions for role assignment'),
});
