import { useLocalSearchParams } from "expo-router";import { useMemo } from "react";import { EnvironmentId, ThreadId, type ScopedProjectRef } from "@t3tools/contracts"; import { useProject, useThreadShell } from "../state/entities";import {  useRemoteEnvironmentRuntime,  useSavedRemoteConnection,} from "./use-remote-environment-registry"; function firstRouteParam(value: string | string[] | undefined): string | null {  if (Array.isArray(value)) {    return value[0] ?? null;  }   return value ?? null;} export function useThreadSelection() {  const params = useLocalSearchParams<{    environmentId?: string | string[];    threadId?: string | string[];  }>();  const selectedThreadRef = useMemo(() => {    const environmentId = firstRouteParam(params.environmentId);    const threadId = firstRouteParam(params.threadId);    if (!environmentId || !threadId) {      return null;    }     return {      environmentId: EnvironmentId.make(environmentId),      threadId: ThreadId.make(threadId),    };  }, [params.environmentId, params.threadId]);  const selectedThread = useThreadShell(selectedThreadRef);  const selectedProjectRef = useMemo<ScopedProjectRef | null>(    () =>      selectedThread === null        ? null        : {            environmentId: selectedThread.environmentId,            projectId: selectedThread.projectId,          },    [selectedThread],  );  const selectedThreadProject = useProject(selectedProjectRef);  const selectedEnvironmentId = selectedThread?.environmentId ?? null;  const selectedEnvironmentConnection = useSavedRemoteConnection(selectedEnvironmentId);  const selectedEnvironmentRuntime = useRemoteEnvironmentRuntime(selectedEnvironmentId);   return {    selectedThreadRef,    selectedThread,    selectedThreadProject,    selectedEnvironmentConnection,    selectedEnvironmentRuntime,  };}