import * as OS from "node:os"; import { Effect, FileSystem } from "effect"; import { runProcess } from "../../processRunner.ts"; interface ResolveServerEnvironmentLabelInput {  readonly cwdBaseName: string;  readonly platform?: NodeJS.Platform;  readonly hostname?: string | null;} function normalizeLabel(value: string | null | undefined): string | null {  const trimmed = value?.trim();  return trimmed && trimmed.length > 0 ? trimmed : null;} function parseMachineInfoValue(raw: string, key: string): string | null {  for (const line of raw.split(/\r?\n/g)) {    const trimmed = line.trim();    if (trimmed.length === 0 || trimmed.startsWith("#") || !trimmed.startsWith(`${key}=`)) {      continue;    }    const value = trimmed.slice(key.length + 1).trim();    if (      (value.startsWith('"') && value.endsWith('"')) ||      (value.startsWith("'") && value.endsWith("'"))    ) {      return normalizeLabel(value.slice(1, -1));    }    return normalizeLabel(value);  }  return null;} const readLinuxMachineInfo = Effect.fn("readLinuxMachineInfo")(function* () {  const fileSystem = yield* FileSystem.FileSystem;  const exists = yield* fileSystem    .exists("/etc/machine-info")    .pipe(Effect.orElseSucceed(() => false));  if (!exists) {    return null;  }   return yield* fileSystem    .readFileString("/etc/machine-info")    .pipe(Effect.orElseSucceed(() => null));}); const runFriendlyLabelCommand = Effect.fn("runFriendlyLabelCommand")(function* (  command: string,  args: readonly string[],) {  const result = yield* Effect.tryPromise({    try: () =>      runProcess(command, args, {        allowNonZeroExit: true,      }),    catch: () => null,  }).pipe(Effect.orElseSucceed(() => null));   if (!result || result.code !== 0) {    return null;  }   return normalizeLabel(result.stdout);}); const resolveFriendlyHostLabel = Effect.fn("resolveFriendlyHostLabel")(function* (  platform: NodeJS.Platform,) {  if (platform === "darwin") {    return yield* runFriendlyLabelCommand("scutil", ["--get", "ComputerName"]);  }   if (platform === "linux") {    const machineInfo = normalizeLabel(yield* readLinuxMachineInfo());    if (machineInfo) {      const prettyHostname = parseMachineInfoValue(machineInfo, "PRETTY_HOSTNAME");      if (prettyHostname) {        return prettyHostname;      }    }     return yield* runFriendlyLabelCommand("hostnamectl", ["--pretty"]);  }   return null;}); export const resolveServerEnvironmentLabel = Effect.fn("resolveServerEnvironmentLabel")(function* (  input: ResolveServerEnvironmentLabelInput,) {  const platform = input.platform ?? process.platform;  const friendlyHostLabel = yield* resolveFriendlyHostLabel(platform);  if (friendlyHostLabel) {    return friendlyHostLabel;  }   const hostname = normalizeLabel(input.hostname ?? OS.hostname());  if (hostname) {    return hostname;  }   return normalizeLabel(input.cwdBaseName) ?? "T3 environment";});