daedalOS/components/apps/Terminal/useCommandInterpreter.ts

import { basename, dirname, extname, isAbsolute, join } from "path";
import { type Terminal } from "xterm";
import { useTheme } from "styled-components";
import { useCallback, useEffect, useRef } from "react";
import type UAParser from "ua-parser-js";
import { runJs } from "components/apps/Terminal/js";
import { colorAttributes, rgbAnsi } from "components/apps/Terminal/color";
import {
  BACKUP_NAME_SERVER,
  LINUX_IMAGE_PATH,
  PI_ASCII,
  PRIMARY_NAME_SERVER,
  config,
} from "components/apps/Terminal/config";
import {
  aliases,
  autoComplete,
  commands,
  formatToExtension,
  getFreeSpace,
  getUptime,
  help,
  parseCommand,
  printColor,
  printTable,
  unknownCommand,
} from "components/apps/Terminal/functions";
import loadWapm from "components/apps/Terminal/loadWapm";
import processGit from "components/apps/Terminal/processGit";
import { runPython } from "components/apps/Terminal/python";
import {
  type CommandInterpreter,
  type LocalEcho,
  type NsEntry,
  type NsResponse,
} from "components/apps/Terminal/types";
import {
  displayLicense,
  displayVersion,
} from "components/apps/Terminal/useTerminal";
import { resourceAliasMap } from "components/system/Dialogs/Run";
import extensions from "components/system/Files/FileEntry/extensions";
import {
  getModifiedTime,
  getProcessByFileExtension,
  getShortcutInfo,
} from "components/system/Files/FileEntry/functions";
import { useFileSystem } from "contexts/fileSystem";
import { requestPermission, resetStorage } from "contexts/fileSystem/functions";
import { useProcesses } from "contexts/process";
import processDirectory from "contexts/process/directory";
import { useSession } from "contexts/session";
import { useProcessesRef } from "hooks/useProcessesRef";
import {
  DEFAULT_LOCALE,
  DESKTOP_PATH,
  HIGH_PRIORITY_REQUEST,
  MILLISECONDS_IN_SECOND,
  PACKAGE_DATA,
  SHORTCUT_EXTENSION,
  SYSTEM_PATH,
} from "utils/constants";
import { transcode } from "utils/ffmpeg";
import {
  getExtension,
  getTZOffsetISOString,
  isFileSystemMappingSupported,
  loadFiles,
} from "utils/functions";
import { convert } from "utils/imagemagick";
import { getIpfsFileName, getIpfsResource } from "utils/ipfs";
import { fullSearch } from "utils/search";
import { convertSheet } from "utils/sheetjs";
import { analyzeFileToText } from "utils/mediainfo";

const COMMAND_NOT_SUPPORTED = "The system does not support the command.";
const FILE_NOT_FILE = "The system cannot find the file specified.";
const PATH_NOT_FOUND = "The system cannot find the path specified.";
const SYNTAX_ERROR = "The syntax of the command is incorrect.";

const { alias } = PACKAGE_DATA;

type WindowPerformance = Performance & {
  memory: {
    jsHeapSizeLimit: number;
    totalJSHeapSize: number;
  };
};

type IResultWithGPU = UAParser.IResult & { gpu: UAParser.IDevice };

declare global {
  interface Window {
    UAParser: UAParser;
  }
}

const useCommandInterpreter = (
  id: string,
  cd: React.RefObject<string>,
  terminal?: Terminal,
  localEcho?: LocalEcho
): React.RefObject<CommandInterpreter> => {
  const {
    createPath,
    deletePath,
    exists,
    fs,
    lstat,
    mapFs,
    mkdirRecursive,
    readdir,
    readFile,
    rename,
    rootFs,
    stat,
    updateFolder,
    writeFile,
  } = useFileSystem();
  const { closeWithTransition, open, title: changeTitle } = useProcesses();
  const { updateRecentFiles } = useSession();
  const processesRef = useProcessesRef();
  const { name: themeName } = useTheme();
  const getFullPath = useCallback(
    async (file: string, writePath?: string): Promise<string> => {
      if (!file) return "";

      if (file.startsWith("ipfs://")) {
        const ipfsData = await getIpfsResource(file);
        const ipfsFile = join(
          DESKTOP_PATH,
          await createPath(
            await getIpfsFileName(file, ipfsData),
            writePath || DESKTOP_PATH,
            ipfsData
          )
        );

        updateFolder(writePath || DESKTOP_PATH, basename(ipfsFile));

        return ipfsFile;
      }

      return isAbsolute(file) ? file : join(cd.current, file);
    },
    [cd, createPath, updateFolder]
  );
  const colorOutput = useRef<string[]>([]);
  const updateFile = useCallback(
    (filePath: string, isDeleted = false): void => {
      const dirPath = dirname(filePath);

      if (isDeleted) {
        updateFolder(dirPath, undefined, basename(filePath));
      } else {
        updateFolder(dirPath, basename(filePath));
      }
    },
    [updateFolder]
  );
  const findCommandInSystemPath = useCallback(
    async (baseCommand: string): Promise<string | undefined> =>
      (await readdir(SYSTEM_PATH)).find(
        (entry) =>
          [".exe", ".wasm"].includes(getExtension(entry)) &&
          basename(entry, extname(entry)).toLowerCase() ===
            baseCommand.toLowerCase()
      ),
    [readdir]
  );
  const commandInterpreter = useCallback(
    async (
      command = "",
      printLn = localEcho?.println.bind(localEcho) || console.info,
      print = localEcho?.print.bind(localEcho) || console.info,
      pipedCommand = ""
    ): Promise<string> => {
      const pipeCommands = command.split("|");

      if (!pipedCommand && pipeCommands.length > 1) {
        const output = [] as string[];
        const stdout = (line: string): void => {
          output.push(line);
        };

        return pipeCommands.reduce(async (result, pipeCommand, index) => {
          await result;

          const results = output.join("").replace(/\n$/, "");
          const isLastCommand = index === pipeCommands.length - 1;
          const trimmedPipeCommand = pipeCommand.trim();

          output.length = 0;

          return commandInterpreter(
            `${trimmedPipeCommand}${results ? ` ${results}` : ""}`,
            isLastCommand ? undefined : (line) => stdout(`${line}\n`),
            isLastCommand ? undefined : stdout,
            trimmedPipeCommand
          );
        }, Promise.resolve(""));
      }

      const [baseCommand = "", ...commandArgs] = parseCommand(
        command,
        pipedCommand
      );
      const lcBaseCommand = baseCommand.toLowerCase();

      try {
        // eslint-disable-next-line sonarjs/max-switch-cases
        switch (lcBaseCommand) {
          case "cat":
          case "type": {
            const [file] = commandArgs;

            if (file) {
              const fullPath = await getFullPath(file);

              if (await exists(fullPath)) {
                if ((await lstat(fullPath)).isDirectory()) {
                  printLn("Access is denied.");
                } else {
                  printLn((await readFile(fullPath)).toString());
                }
              } else {
                printLn(PATH_NOT_FOUND);
              }
            } else {
              printLn(SYNTAX_ERROR);
            }
            break;
          }
          case "cd":
          case "cd/":
          case "cd.":
          case "cd..":
          case "chdir":
          case "pwd": {
            const [directory] =
              lcBaseCommand.startsWith("cd") && lcBaseCommand.length > 2
                ? [lcBaseCommand.slice(2)]
                : commandArgs;

            if (directory && lcBaseCommand !== "pwd") {
              const fullPath = await getFullPath(directory);
              const checkNewPath = async (newPath: string): Promise<void> => {
                if (!(await lstat(newPath)).isDirectory()) {
                  printLn("The directory name is invalid.");
                } else if (cd.current !== newPath) {
                  // eslint-disable-next-line no-param-reassign
                  cd.current = newPath;
                }
              };

              if (await exists(fullPath)) {
                await checkNewPath(fullPath);
              } else {
                const lcEntry = (await readdir(cd.current)).find(
                  (entry) =>
                    entry.toLowerCase() === basename(fullPath).toLowerCase()
                );

                if (lcEntry) {
                  await checkNewPath(join(cd.current, lcEntry));
                } else {
                  printLn(PATH_NOT_FOUND);
                }
              }
            } else {
              printLn(cd.current);
            }
            break;
          }
          case "color": {
            const [r, g, b] = commandArgs;

            if (
              typeof r === "string" &&
              typeof g === "string" &&
              typeof b === "string"
            ) {
              print(rgbAnsi(Number(r), Number(g), Number(b)));
            } else {
              const [[bg, fg] = []] = commandArgs;
              const { rgb: bgRgb, name: bgName } =
                colorAttributes[bg?.toUpperCase()] || {};
              const { rgb: fgRgb, name: fgName } =
                colorAttributes[fg?.toUpperCase()] || {};

              if (bgRgb) {
                const useAsBg = Boolean(fgRgb);
                const bgAnsi = rgbAnsi(...bgRgb, useAsBg);

                print(bgAnsi);
                printLn(`${useAsBg ? "Background" : "Foreground"}: ${bgName}`);
                colorOutput.current[0] = bgAnsi;
              }

              if (fgRgb) {
                const fgAnsi = rgbAnsi(...fgRgb);

                print(fgAnsi);
                printLn(`Foreground: ${fgName}`);
                colorOutput.current[1] = fgAnsi;
              }

              if (!fgRgb && !bgRgb) {
                print("\u001B[0m");
                colorOutput.current = [];
              }
            }
            break;
          }
          case "copy":
          case "cp": {
            const [source, destination] = commandArgs;
            const fullSourcePath = await getFullPath(source);

            if (await exists(fullSourcePath)) {
              if (destination) {
                const fullDestinationPath = await getFullPath(destination);
                const dirName = dirname(fullDestinationPath);

                updateFile(
                  join(
                    dirName,
                    await createPath(
                      basename(fullDestinationPath),
                      dirName,
                      await readFile(fullSourcePath)
                    )
                  )
                );
                printLn("\t1 file(s) copied.");
              } else {
                printLn("The file cannot be copied onto itself.");
                printLn("\t0 file(s) copied.");
              }
            } else {
              printLn(FILE_NOT_FILE);
            }
            break;
          }
          case "clear":
          case "cls":
            terminal?.reset();
            terminal?.write(`\u001Bc${colorOutput.current.join("")}`);
            break;
          case "date":
            printLn(
              `The current date is: ${getTZOffsetISOString().slice(0, 10)}`
            );
            break;
          case "del":
          case "erase":
          case "rd":
          case "rm":
          case "rmdir": {
            const [commandPath] = commandArgs;

            if (commandPath) {
              const fullPath = await getFullPath(commandPath);

              if ((await exists(fullPath)) && (await deletePath(fullPath))) {
                updateFile(fullPath, true);
              }
            }
            break;
          }
          case "dir":
          case "ls": {
            const [directory = ""] = commandArgs;
            const listDir = async (dirPath: string): Promise<void> => {
              let totalSize = 0;
              let fileCount = 0;
              let directoryCount = 0;
              let entries = await readdir(dirPath);

              if (
                entries.length === 0 &&
                rootFs?.mntMap[dirPath]?.getName() === "FileSystemAccess"
              ) {
                await requestPermission(dirPath);
                entries = await readdir(dirPath);
              }

              const timeFormatter = new Intl.DateTimeFormat(DEFAULT_LOCALE, {
                timeStyle: "short",
              });
              const entriesWithStats = await Promise.all(
                entries
                  .filter(
                    (entry) =>
                      (!directory.startsWith("*") ||
                        entry.endsWith(directory.slice(1))) &&
                      (!directory.endsWith("*") ||
                        entry.startsWith(directory.slice(0, -1)))
                  )
                  .map(async (entry) => {
                    const filePath = join(dirPath, entry);
                    const fileStats = await stat(filePath);
                    const mDate = new Date(
                      getModifiedTime(filePath, fileStats)
                    );
                    const date = mDate.toISOString().slice(0, 10);
                    const time = timeFormatter.format(mDate).padStart(8, "0");
                    const isDirectory = fileStats.isDirectory();

                    totalSize += isDirectory ? 0 : fileStats.size;
                    if (isDirectory) {
                      directoryCount += 1;
                    } else {
                      fileCount += 1;
                    }

                    return [
                      `${date}  ${time}`,
                      isDirectory
                        ? "<DIR>        "
                        : fileStats.size.toLocaleString(),
                      entry,
                    ];
                  })
              );
              printLn(` Directory of ${dirPath}`);
              printLn("");

              const fullSizeTerminal =
                !localEcho?._termSize?.cols || localEcho?._termSize?.cols > 52;

              printTable(
                [
                  ["Date", fullSizeTerminal ? 22 : 20],
                  [
                    "Type/Size",
                    fullSizeTerminal ? 15 : 13,
                    true,
                    (size) => (size === "-1" ? "" : size),
                  ],
                  ["Name", terminal?.cols ? terminal.cols - 40 : 30],
                ],
                entriesWithStats,
                printLn,
                true
              );
              printLn(
                `\t\t${fileCount} File(s)\t${totalSize.toLocaleString()} bytes`
              );
              printLn(`\t\t${directoryCount} Dir(s)${await getFreeSpace()}`);
            };

            if (
              directory &&
              !directory.startsWith("*") &&
              !directory.endsWith("*")
            ) {
              const fullPath = await getFullPath(directory);

              if (await exists(fullPath)) {
                if ((await lstat(fullPath)).isDirectory()) {
                  await listDir(fullPath);
                } else {
                  printLn(basename(fullPath));
                }
              } else {
                printLn("File Not Found");
              }
            } else {
              await listDir(cd.current);
            }
            break;
          }
          case "echo":
            printLn(command.slice(command.indexOf(" ") + 1));
            break;
          case "exit":
          case "quit":
            closeWithTransition(id);
            break;
          case "file": {
            const [commandPath] = commandArgs;

            if (commandPath) {
              const fullPath = await getFullPath(commandPath);

              if (await exists(fullPath)) {
                const { fileTypeFromBuffer } = await import("file-type");
                const { mime = "Unknown" } =
                  (await fileTypeFromBuffer(await readFile(fullPath))) || {};

                printLn(`${commandPath}: ${mime}`);
              }
            }
            break;
          }
          case "find":
          case "search": {
            if (commandArgs.length === 0) {
              printLn("FIND: Parameter format not correct");
              break;
            }

            const results = await fullSearch(
              commandArgs.join(" "),
              readFile,
              rootFs
            );
            results?.forEach(({ ref }) => printLn(ref));
            break;
          }
          case "ffmpeg":
          case "imagemagick": {
            const [file, format] = commandArgs;

            if (file && format) {
              const fullPath = await getFullPath(file);
              const ext = formatToExtension(format);

              if (
                (await exists(fullPath)) &&
                !(await lstat(fullPath)).isDirectory()
              ) {
                const convertOrTranscode =
                  lcBaseCommand === "ffmpeg" ? transcode : convert;
                const [[newName, newData] = []] = await convertOrTranscode(
                  [[basename(fullPath), await readFile(fullPath)]],
                  ext,
                  printLn
                );

                if (newName && newData) {
                  const dirName = dirname(fullPath);

                  updateFile(
                    join(dirName, await createPath(newName, dirName, newData))
                  );
                }
              } else {
                printLn(FILE_NOT_FILE);
              }
            } else {
              printLn(SYNTAX_ERROR);
            }
            break;
          }
          case "git":
          case "isogit":
            if (fs) {
              await processGit(
                commandArgs,
                cd.current,
                printLn,
                fs,
                updateFolder
              );
            }
            break;
          case "help": {
            const [commandName] = commandArgs;
            const showAliases = commandName === "-a";

            if (commandName && !showAliases) {
              const helpCommand = commands[commandName]
                ? commandName
                : Object.entries(aliases).find(
                    ([, [baseCommandName]]) => baseCommandName === commandName
                  )?.[0];

              if (helpCommand && commands[helpCommand]) {
                printLn(commands[helpCommand]);
              } else {
                printLn("This command is not supported by the help utility.");
              }
            } else {
              help(printLn, commands, showAliases ? aliases : undefined);
            }
            break;
          }
          case "history":
            localEcho?.history.entries.forEach((entry, index) =>
              printLn(`${(index + 1).toString().padStart(4)} ${entry}`)
            );
            break;
          case "ipfs": {
            const [commandName, cid] = commandArgs;

            if (commandName === "get" && cid) {
              await getFullPath(`ipfs://${cid}`, cd.current);
            }

            break;
          }
          case "ifconfig":
          case "ipconfig":
          case "whatsmyip": {
            const cloudFlareIpTraceText =
              (await (
                await fetch("https://cloudflare.com/cdn-cgi/trace")
              ).text()) || "";
            const { ip = "" } = Object.fromEntries(
              cloudFlareIpTraceText
                .trim()
                .split("\n")
                .map((entry) => entry.split("=")) || []
            ) as Record<string, string>;
            const isValidIp = (possibleIp: string): boolean => {
              const octets = possibleIp.split(".");

              return (
                octets.length === 4 &&
                octets.map(Number).every((octet) => octet > 0 && octet < 256)
              );
            };

            printLn("IP Configuration");
            printLn("");
            printLn(
              `   IPv4 Address. . . . . . . . . . . : ${
                isValidIp(ip) ? ip : "Unknown"
              }`
            );
            break;
          }
          case "kill":
          case "taskkill": {
            const [processId] = commandArgs;
            const processName =
              Number.isNaN(processId) || processesRef.current[processId]
                ? processId
                : Object.keys(processesRef.current)[Number(processId)];

            if (processesRef.current[processName]) {
              closeWithTransition(processName);
              printLn(
                `SUCCESS: Sent termination signal to the process "${processName}".`
              );
            } else {
              printLn(`ERROR: The process "${processName}" not found.`);
            }
            break;
          }
          case "license":
            printLn(displayLicense);
            break;
          case "md":
          case "mkdir": {
            const [directory] = commandArgs;

            if (directory) {
              const fullPath = await getFullPath(directory);

              await mkdirRecursive(fullPath);
              updateFile(fullPath);
            }
            break;
          }
          case "mediainfo":
            {
              const [commandPath] = commandArgs;

              if (commandPath) {
                const fullPath = await getFullPath(commandPath);

                if (await exists(fullPath)) {
                  try {
                    printLn(await analyzeFileToText(await readFile(fullPath)));
                  } catch {
                    printLn("Failed to parse media file");
                  }
                }
              }
            }
            break;
          case "mount":
            if (isFileSystemMappingSupported()) {
              try {
                const mappedFolder = await mapFs(cd.current);

                if (mappedFolder) {
                  const fullPath = join(cd.current, mappedFolder);

                  updateFolder(cd.current, mappedFolder);

                  // eslint-disable-next-line no-param-reassign
                  cd.current = fullPath;
                }
              } catch {
                // Ignore failure to mount
              }
            } else {
              printLn(COMMAND_NOT_SUPPORTED);
            }
            break;
          case "move":
          case "mv":
          case "ren":
          case "rename": {
            const [source, destination] = commandArgs;
            const fullSourcePath = await getFullPath(source);

            if (await exists(fullSourcePath)) {
              if (destination) {
                let fullDestinationPath = await getFullPath(destination);

                if (
                  ["move", "mv"].includes(lcBaseCommand) &&
                  (await exists(fullDestinationPath)) &&
                  (await lstat(fullDestinationPath)).isDirectory()
                ) {
                  fullDestinationPath = join(
                    fullDestinationPath,
                    basename(fullSourcePath)
                  );
                }

                if (await rename(fullSourcePath, fullDestinationPath)) {
                  updateFile(fullSourcePath, true);
                  updateFile(fullDestinationPath);
                }
              } else {
                printLn(SYNTAX_ERROR);
              }
            } else {
              printLn(FILE_NOT_FILE);
            }
            break;
          }
          case "neofetch":
          case "systeminfo": {
            await loadFiles(["/Program Files/Xterm.js/ua-parser.js"]);

            const {
              browser,
              cpu,
              engine,
              gpu,
              os: hostOS,
            } = (new window.UAParser().getResult() || {}) as IResultWithGPU;
            const { cols, options } = terminal || {};
            const userId = `public@${window.location.hostname}`;
            const terminalFont = (options?.fontFamily || config.fontFamily)
              ?.split(", ")
              .find((font) =>
                document.fonts.check(
                  `${options?.fontSize || config.fontSize || 12}px ${font}`
                )
              );
            const { quota = 0, usage = 0 } =
              (await navigator.storage?.estimate?.()) || {};
            const labelColor = 3;
            const labelText = (text: string): string =>
              `${rgbAnsi(...colorAttributes[labelColor].rgb)}${text}${
                colorOutput.current?.[0] || rgbAnsi(...colorAttributes[7].rgb)
              }`;
            const output = [
              userId,
              Array.from({ length: userId.length }).fill("-").join(""),
              `OS: ${alias} ${displayVersion()}`,
            ];

            if (hostOS?.name) {
              output.push(
                `Host: ${hostOS.name}${
                  hostOS?.version ? ` ${hostOS.version}` : ""
                }${cpu?.architecture ? ` ${cpu?.architecture}` : ""}`
              );
            }

            if (browser?.name) {
              output.push(
                `Kernel: ${browser.name}${
                  browser?.version ? ` ${browser.version}` : ""
                }${engine?.name ? ` (${engine.name})` : ""}`
              );
            }

            output.push(
              `Uptime: ${getUptime(true)}`,
              `Packages: ${
                Object.entries(processDirectory).filter(
                  ([, { dialogProcess }]) => !dialogProcess
                ).length
              }`
            );

            if (window.screen?.width && window.screen?.height) {
              output.push(
                `Resolution: ${window.screen.width}x${window.screen.height}`
              );
            }

            output.push(`Theme: ${themeName}`);

            if (terminalFont) {
              output.push(`Terminal Font: ${terminalFont}`);
            }

            if (gpu?.vendor) {
              output.push(
                `GPU: ${gpu.vendor}${gpu?.model ? ` ${gpu.model}` : ""}`
              );
            } else if (gpu?.model) {
              output.push(`GPU: ${gpu.model}`);
            }

            if (window.performance && "memory" in window.performance) {
              output.push(
                `Memory: ${(
                  (window.performance as WindowPerformance).memory
                    .totalJSHeapSize /
                  1024 /
                  1024
                ).toFixed(0)}MB / ${(
                  (window.performance as WindowPerformance).memory
                    .jsHeapSizeLimit /
                  1024 /
                  1024
                ).toFixed(0)}MB`
              );
            }

            if (quota) {
              output.push(
                `Disk (/): ${(usage / 1024 / 1024 / 1024).toFixed(0)}G / ${(
                  quota /
                  1024 /
                  1024 /
                  1024
                ).toFixed(0)}G (${((usage / quota) * 100).toFixed(2)}%)`
              );
            }

            const longestLineLength = output.reduce(
              (max, line) => Math.max(max, line.length),
              0
            );
            const maxCols = cols || config.cols || 70;
            const longestLine = PI_ASCII[0].length + longestLineLength;
            const imgPadding = Math.max(Math.min(maxCols - longestLine, 3), 1);

            output.push(
              "\n",
              [0, 4, 2, 6, 1, 5, 3, 7]
                .map((color) => printColor(color, colorOutput.current))
                .join(""),
              [8, "C", "A", "E", 9, "D", "B", "F"]
                .map((color) => printColor(color, colorOutput.current))
                .join("")
            );
            PI_ASCII.forEach((imgLine, lineIndex) => {
              let outputLine = output[lineIndex] || "";

              if (lineIndex === 0) {
                const [user, system] = outputLine.split("@");

                outputLine = `${labelText(user)}@${labelText(system)}`;
              } else {
                const [label, info] = outputLine.split(":");

                if (info) {
                  outputLine = `${labelText(label)}:${info}`;
                }
              }

              printLn(
                `${labelText(imgLine)}${
                  outputLine.padStart(outputLine.length + imgPadding, " ") || ""
                }`
              );
            });
            break;
          }
          case "nslookup": {
            const [domainName] = commandArgs;

            if (domainName) {
              const nsLookup = async (
                domain: string,
                server = PRIMARY_NAME_SERVER[0]
              ): Promise<NsEntry[]> => {
                const { Answer = [] } = (await (
                  await fetch(`${server}?name=${domain}`, {
                    headers: { Accept: "application/dns-json" },
                  })
                ).json()) as NsResponse;

                return Answer;
              };
              let answer: NsEntry[] | undefined;
              let primaryFailed = false;

              try {
                answer = await nsLookup(domainName);
              } catch {
                try {
                  primaryFailed = true;
                  answer = await nsLookup(domainName, BACKUP_NAME_SERVER[0]);
                } catch {
                  // Ignore failure on backup name server
                }
              }

              if (answer) {
                const [server, address] = primaryFailed
                  ? BACKUP_NAME_SERVER
                  : PRIMARY_NAME_SERVER;
                const { host } = new URL(server);

                printLn(`Server:  ${host}`);
                printLn(`Address:  ${address}`);
                printLn("");
                printLn("Non-authoritative answer:");
                printLn(`Name:    ${domainName}`);
                printLn(
                  `Addresses:  ${answer
                    .map(({ data }) => data)
                    .join("\n          ")}`
                );
                printLn("");
              } else {
                printLn("Failed to contact name servers.");
              }
            }
            break;
          }
          case "sheep":
          case "esheep": {
            const { countSheep, killSheep, spawnSheep } = await import(
              "utils/spawnSheep"
            );
            let [count = 1, duration = 0] = commandArgs;

            if (!Number.isNaN(count) && !Number.isNaN(duration)) {
              count = Number(count);
              duration = Number(duration);

              if (count > 1) {
                await spawnSheep();
                count -= 1;
              }

              const maxDuration =
                (duration || (count > 1 ? 1 : 0)) * MILLISECONDS_IN_SECOND;

              Array.from({ length: count === 0 ? countSheep() : count })
                .fill(0)
                .map(() => Math.floor(Math.random() * maxDuration))
                .forEach((delay) =>
                  setTimeout(count === 0 ? killSheep : spawnSheep, delay)
                );
            }
            break;
          }
          case "ps":
          case "tasklist":
            printTable(
              [
                ["Image Name", 25],
                ["PID", 8],
                ["Title", 16],
              ],
              Object.entries(processesRef.current).map(
                ([pid, { title }], index) => [pid, index.toString(), title]
              ),
              printLn
            );
            break;
          case "py":
          case "python":
          case "python3":
            {
              const [file] = commandArgs;
              const fullSourcePath = await getFullPath(file);

              if (await exists(fullSourcePath)) {
                const code = await readFile(fullSourcePath);

                if (code.length > 0) {
                  await runPython(code.toString(), printLn);
                }
              } else {
                const [, code = "version"] = command.split(" ");

                await runPython(code, printLn);
              }
            }
            break;
          case "qjs":
          case "quickjs":
          case "node":
            {
              const [file] = commandArgs;
              const fullSourcePath = await getFullPath(file);

              if (await exists(fullSourcePath)) {
                const code = await readFile(fullSourcePath);

                if (code.length > 0) {
                  await runJs(code.toString(), printLn);
                }
              } else {
                const [, code] = command.split(" ");

                await runJs(code, printLn);
              }
            }
            break;
          case "logout":
          case "restart":
          case "shutdown":
            resetStorage(rootFs).finally(() => window.location.reload());
            break;
          case "time":
            printLn(
              `The current time is: ${getTZOffsetISOString().slice(11, 22)}`
            );
            break;
          case "title":
            changeTitle(id, command.slice(command.indexOf(" ") + 1));
            break;
          case "touch": {
            const [file] = commandArgs;

            if (file) {
              const fullPath = await getFullPath(file);
              const dirName = dirname(fullPath);

              updateFile(
                join(
                  dirName,
                  await createPath(basename(fullPath), dirName, Buffer.from(""))
                )
              );
            }
            break;
          }
          case "uptime":
            printLn(`Uptime: ${getUptime()}`);
            break;
          case "ver":
          case "version":
            printLn(displayVersion());
            break;
          case "wapm":
          case "wasmer":
          case "wax": {
            const [file] = commandArgs;
            const fullSourcePath = await getFullPath(file);

            const [wasmName, wasmFile] = await loadWapm(
              commandArgs,
              print,
              printLn,
              fullSourcePath.endsWith(".wasm") && (await exists(fullSourcePath))
                ? await readFile(fullSourcePath)
                : undefined,
              pipedCommand
            );

            if (wasmName && wasmFile) {
              writeFile(
                join(SYSTEM_PATH, `${wasmName}.wasm`),
                Buffer.from(wasmFile),
                true
              );
            }

            break;
          }
          case "weather":
          case "wttr": {
            const response = await fetch(
              "https://wttr.in/?1nAF",
              HIGH_PRIORITY_REQUEST
            );

            printLn(await response.text());

            const [bgAnsi, fgAnsi] = colorOutput.current;

            if (bgAnsi) print(bgAnsi);
            if (fgAnsi) print(fgAnsi);
            break;
          }
          case "whoami":
            printLn(`${window.location.hostname}\\public`);
            break;
          case "wsl":
          case "linux":
            open("V86", { url: LINUX_IMAGE_PATH });
            updateRecentFiles(LINUX_IMAGE_PATH, "V86");
            break;
          case "xlsx": {
            const [file, format = "xlsx"] = commandArgs;

            if (file && format) {
              const fullPath = await getFullPath(file);
              const ext = formatToExtension(format);

              if (
                (await exists(fullPath)) &&
                !(await lstat(fullPath)).isDirectory()
              ) {
                const workBook = await convertSheet(
                  await readFile(fullPath),
                  ext
                );
                const dirName = dirname(fullPath);

                updateFile(
                  join(
                    dirName,
                    await createPath(
                      `${basename(file, extname(file))}.${ext}`,
                      dirName,
                      Buffer.from(workBook)
                    )
                  )
                );
              } else {
                printLn(FILE_NOT_FILE);
              }
            } else {
              printLn(SYNTAX_ERROR);
            }
            break;
          }
          default:
            if (baseCommand) {
              const [pid] = Object.entries(processDirectory)
                .filter(([, { dialogProcess }]) => !dialogProcess)
                .find(
                  ([process]) => process.toLowerCase() === lcBaseCommand
                ) || [resourceAliasMap[lcBaseCommand]];

              if (pid) {
                const [file] = commandArgs;
                const fullPath = await getFullPath(file);
                const openUrl =
                  file && fullPath && (await exists(fullPath)) ? fullPath : "";

                open(pid, { url: openUrl });
                if (openUrl) updateRecentFiles(openUrl, pid);
              } else {
                const baseFileExists = await exists(baseCommand);

                if (
                  baseFileExists ||
                  (await exists(join(cd.current, baseCommand)))
                ) {
                  const fileExtension = getExtension(baseCommand);
                  const { command: extCommand = "" } =
                    extensions[fileExtension] || {};

                  if (extCommand) {
                    const newCommand = `${extCommand} ${
                      baseCommand.includes(" ")
                        ? `"${baseCommand}"`
                        : baseCommand
                    }`;

                    await commandInterpreter(
                      `${newCommand}${
                        commandArgs.length > 0
                          ? ` ${commandArgs.join(" ")}`
                          : ""
                      }`,
                      printLn,
                      print,
                      pipedCommand
                        ? newCommand.replace(baseCommand, pipedCommand)
                        : undefined
                    );
                  } else {
                    const fullFilePath = baseFileExists
                      ? baseCommand
                      : join(cd.current, baseCommand);
                    let basePid = "";
                    let baseUrl = fullFilePath;

                    if (fileExtension === SHORTCUT_EXTENSION) {
                      ({ pid: basePid, url: baseUrl } = getShortcutInfo(
                        await readFile(fullFilePath)
                      ));
                    } else {
                      basePid = getProcessByFileExtension(fileExtension);
                    }

                    if (basePid) {
                      open(basePid, { url: baseUrl });
                      if (baseUrl) updateRecentFiles(baseUrl, basePid);
                    } else {
                      printLn(unknownCommand(baseCommand));
                    }
                  }
                } else {
                  const systemProgram =
                    await findCommandInSystemPath(baseCommand);

                  if (systemProgram) {
                    const newCommand = `${SYSTEM_PATH}/${systemProgram}`;

                    await commandInterpreter(
                      `${newCommand}${
                        commandArgs.length > 0
                          ? ` ${commandArgs.join(" ")}`
                          : ""
                      }`,
                      printLn,
                      print,
                      pipedCommand?.replace(baseCommand, newCommand)
                    );
                  } else {
                    printLn(unknownCommand(baseCommand));
                  }
                }
              }
            }
        }
      } catch {
        printLn("An error occurred while attempting to execute the command");
      }

      if (localEcho) {
        readdir(cd.current).then((files) => autoComplete(files, localEcho));
      }

      return cd.current;
    },
    [
      cd,
      changeTitle,
      closeWithTransition,
      createPath,
      deletePath,
      exists,
      findCommandInSystemPath,
      fs,
      getFullPath,
      id,
      localEcho,
      lstat,
      mapFs,
      mkdirRecursive,
      open,
      processesRef,
      readFile,
      readdir,
      rename,
      rootFs,
      stat,
      terminal,
      themeName,
      updateFile,
      updateFolder,
      updateRecentFiles,
      writeFile,
    ]
  );
  const commandInterpreterRef = useRef<CommandInterpreter>(commandInterpreter);

  useEffect(() => {
    commandInterpreterRef.current = commandInterpreter;
  }, [commandInterpreter]);

  return commandInterpreterRef;
};

export default useCommandInterpreter;