import { adminToast } from '@admin/components/ui/admin-toast';
import { CrudCreateLink } from '@admin/components/ui/crud-create-link';
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 { formatRoleName } from '@admin/lib/format-role-name';
import { dashboardPersistentLayout } from '@admin/layouts/dashboard-page-layout';
import EditRole from '@admin/pages/roles/edit-role';
import type { PermissionSection } from '@admin/components/ui/forms/permission-matrix';
import { Head } from '@inertiajs/react';
import { useState } from 'react';

type RoleRow = {
    id: number;
    name: string;
    permissions_count: number;
    users_count: number;
    is_protected: boolean;
};

type RolesIndexProps = {
    roles: RoleRow[];
    permissionSections: PermissionSection[];
};

function RolesIndex({ roles, permissionSections }: RolesIndexProps) {
    const { canEdit, canDelete } = useCrudPermissions('role');
    const [isEditModalOpen, setIsEditModalOpen] = useState(false);
    const [initialData, setInitialData] = useState<RoleRow | null>(null);
    const [deleteModal, setDeleteModal] = useState<{ show: boolean; role: RoleRow | null }>({ show: false, role: null });

    const columns: DataTableColumn<RoleRow>[] = [
        { header: 'Role', key: 'name', render: (row) => formatRoleName(row.name) },
        { header: 'Permissions', key: 'permissions_count' },
        { header: 'Users', key: 'users_count' },
        {
            header: 'Type',
            key: 'is_protected',
            render: (row) => (row.is_protected ? 'System' : 'Custom'),
        },
    ];

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

            const roleData = (await response.json()) as RoleRow & {
                permissions: string[];
                is_protected: boolean;
            };
            setInitialData(roleData);
            setIsEditModalOpen(true);
        } catch {
            adminToast.error('Could not load role details');
        }
    };

    return (
        <>
            <Head title="Roles" />

            <div className="grid grid-cols-12 gap-6">
                <div className="col-span-12">
                    <CrudCreateLink href={route('admin.roles.create')} label="Create role" resource="role" />
                    <DataTable
                        data={roles}
                        columns={columns}
                        title="Roles"
                        itemsPerPage={10}
                        onEdit={canEdit ? handleEdit : undefined}
                        onDelete={canDelete ? (row) => setDeleteModal({ show: true, role: row }) : undefined}
                        canDeleteRow={(row) => !row.is_protected}
                        showEdit={canEdit}
                        showDelete={canDelete}
                        noDataText="No roles found"
                    />
                </div>
            </div>

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

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

export default Object.assign(RolesIndex, {
    layout: dashboardPersistentLayout('Roles', 'Create roles and assign permissions to staff'),
});
