From c4868a040f19c061deda257e844233928ba9e234 Mon Sep 17 00:00:00 2001
From: Prozilla <business@prozilla.dev>
Date: Sun, 10 Dec 2023 20:33:14 +0100
Subject: [PATCH] Updated terminal app

---
 .../file-explorer/FileExplorer.jsx            |   2 +-
 .../settings/AppearanceSettings.jsx           |   5 +-
 .../applications/terminal/OutputLine.jsx      |   2 +-
 .../applications/terminal/Terminal.jsx        |  65 ++++--
 .../applications/terminal/Terminal.module.css |   3 +-
 .../applications/text-editor/TextEditor.jsx   |   4 +-
 .../modals/dialog-box/DialogBox.jsx           |   5 +-
 src/constants/applications/settings.js        |   1 +
 src/constants/applications/terminal.js        |   3 +
 src/constants/applications/textEditor.js      |   2 +
 src/constants/modals.js                       |   7 +
 src/constants/windows.js                      |   2 +
 src/features/applications/terminal/command.js |  67 +++++++
 .../applications/terminal/commands.js         | 188 ++++--------------
 .../applications/terminal/commands/blow.js    |   5 +
 .../applications/terminal/commands/cat.js     |  24 +++
 .../applications/terminal/commands/cd.js      |  13 ++
 .../applications/terminal/commands/clear.js   |  10 +
 .../applications/terminal/commands/cowsay.js  |  99 +++++++++
 .../applications/terminal/commands/dir.js     |  10 +
 .../applications/terminal/commands/echo.js    |   5 +
 .../applications/terminal/commands/fortune.js |  99 +++++++++
 .../terminal/commands/hostname.js             |   5 +
 .../applications/terminal/commands/ls.js      |  29 +++
 .../applications/terminal/commands/make.js    |   6 +
 .../applications/terminal/commands/man.js     |  54 +++++
 .../applications/terminal/commands/mkdir.js   |  11 +
 .../terminal/commands/neofetch.js             |  56 ++++++
 .../applications/terminal/commands/nice.js    |   6 +
 .../applications/terminal/commands/pwd.js     |   9 +
 .../applications/terminal/commands/reboot.js  |   7 +
 .../applications/terminal/commands/rm.js      |  12 ++
 .../applications/terminal/commands/rmdir.js   |  12 ++
 .../applications/terminal/commands/touch.js   |  22 ++
 .../applications/terminal/commands/world.js   |   5 +
 src/features/utils/array.js                   |   8 +
 src/features/windows/windowsManager.js        |   4 +-
 src/hooks/modals/dialogBox.js                 |   5 +-
 38 files changed, 688 insertions(+), 184 deletions(-)
 create mode 100644 src/constants/applications/settings.js
 create mode 100644 src/constants/applications/terminal.js
 create mode 100644 src/constants/applications/textEditor.js
 create mode 100644 src/constants/modals.js
 create mode 100644 src/constants/windows.js
 create mode 100644 src/features/applications/terminal/command.js
 create mode 100644 src/features/applications/terminal/commands/blow.js
 create mode 100644 src/features/applications/terminal/commands/cat.js
 create mode 100644 src/features/applications/terminal/commands/cd.js
 create mode 100644 src/features/applications/terminal/commands/clear.js
 create mode 100644 src/features/applications/terminal/commands/cowsay.js
 create mode 100644 src/features/applications/terminal/commands/dir.js
 create mode 100644 src/features/applications/terminal/commands/echo.js
 create mode 100644 src/features/applications/terminal/commands/fortune.js
 create mode 100644 src/features/applications/terminal/commands/hostname.js
 create mode 100644 src/features/applications/terminal/commands/ls.js
 create mode 100644 src/features/applications/terminal/commands/make.js
 create mode 100644 src/features/applications/terminal/commands/man.js
 create mode 100644 src/features/applications/terminal/commands/mkdir.js
 create mode 100644 src/features/applications/terminal/commands/neofetch.js
 create mode 100644 src/features/applications/terminal/commands/nice.js
 create mode 100644 src/features/applications/terminal/commands/pwd.js
 create mode 100644 src/features/applications/terminal/commands/reboot.js
 create mode 100644 src/features/applications/terminal/commands/rm.js
 create mode 100644 src/features/applications/terminal/commands/rmdir.js
 create mode 100644 src/features/applications/terminal/commands/touch.js
 create mode 100644 src/features/applications/terminal/commands/world.js

diff --git a/src/components/applications/file-explorer/FileExplorer.jsx b/src/components/applications/file-explorer/FileExplorer.jsx
index 9c5c17b..f8e1f16 100644
--- a/src/components/applications/file-explorer/FileExplorer.jsx
+++ b/src/components/applications/file-explorer/FileExplorer.jsx
@@ -11,7 +11,7 @@ import { ModalsView } from "../../modals/ModalsView.jsx";
 import { QuickAccessButton } from "./QuickAccessButton.jsx";
 import { useDialogBox } from "../../../hooks/modals/dialogBox.js";
 import Vector2 from "../../../features/math/vector2.js";
-import { DIALOG_CONTENT_TYPES } from "../../modals/dialog-box/DialogBox.jsx";
+import { DIALOG_CONTENT_TYPES } from "../../../constants/modals.js";
 
 /**
  * @param {object} props
diff --git a/src/components/applications/settings/AppearanceSettings.jsx b/src/components/applications/settings/AppearanceSettings.jsx
index f10c95d..10edc68 100644
--- a/src/components/applications/settings/AppearanceSettings.jsx
+++ b/src/components/applications/settings/AppearanceSettings.jsx
@@ -3,8 +3,7 @@ import { SettingsManager } from "../../../features/settings/settingsManager.js";
 import styles from "./Settings.module.css";
 import { useVirtualRoot } from "../../../hooks/virtual-drive/virtualRootContext.js";
 import { useSettingsManager } from "../../../hooks/settings/settingsManagerContext.js";
-
-const wallpapersPath = "~/Images/Wallpapers";
+import { WALLPAPERS_PATH } from "../../../constants/applications/settings.js";
 
 export function AppearanceSettings() {
 	const virtualRoot = useVirtualRoot();
@@ -25,7 +24,7 @@ export function AppearanceSettings() {
 		<div className={styles["Option"]}>
 			<p className={styles["Label"]}>Wallpaper</p>
 			<div className={styles["Input"]}>
-				{virtualRoot.navigate(wallpapersPath)?.getFiles()?.toReversed().map(({ id, source }) =>
+				{virtualRoot.navigate(WALLPAPERS_PATH)?.getFiles()?.toReversed().map(({ id, source }) =>
 					<label className={styles["Image-select"]} key={id}>
 						<input
 							type="radio"
diff --git a/src/components/applications/terminal/OutputLine.jsx b/src/components/applications/terminal/OutputLine.jsx
index 08d78fe..36086cb 100644
--- a/src/components/applications/terminal/OutputLine.jsx
+++ b/src/components/applications/terminal/OutputLine.jsx
@@ -9,7 +9,7 @@ export function OutputLine({ text }) {
 
 	return (<>
 		{lines.map((line, index) =>
-			<p key={index} className={styles.Output}>{line}</p>
+			<pre key={index} className={styles.Output}>{line === "" ? " " : line}</pre>
 		)}
 	</>);
 }
\ No newline at end of file
diff --git a/src/components/applications/terminal/Terminal.jsx b/src/components/applications/terminal/Terminal.jsx
index 5d4c443..a585459 100644
--- a/src/components/applications/terminal/Terminal.jsx
+++ b/src/components/applications/terminal/Terminal.jsx
@@ -1,13 +1,11 @@
 import { useEffect, useRef, useState } from "react";
 import styles from "./Terminal.module.css";
 import { useVirtualRoot } from "../../../hooks/virtual-drive/virtualRootContext.js";
-import { Command } from "../../../features/applications/terminal/commands.js";
 import { clamp } from "../../../features/math/clamp.js";
 import { OutputLine } from "./OutputLine.jsx";
 import { InputLine } from "./InputLine.jsx";
-
-const USERNAME = "user";
-const HOSTNAME = "prozilla-os";
+import { HOSTNAME, USERNAME } from "../../../constants/applications/terminal.js";
+import CommandsManager from "../../../features/applications/terminal/commands.js";
 
 export function Terminal({ setTitle }) {
 	const [inputKey, setInputKey] = useState(0);
@@ -37,28 +35,29 @@ export function Terminal({ setTitle }) {
 		});
 	};
 
-	const submitInput = (value) => {
-		pushHistory({
-			text: prefix + value,
-			isInput: true,
-			value
-		});
-
-		setInputValue("");
-
+	const handleInput = (value) => {
+		const rawInputValueStart = value.indexOf(" ") + 1;
+		const rawInputValue = rawInputValueStart <= 0 ? "" : value.substr(rawInputValueStart);
 		value = value.trim();
 
 		if (value === "")
 			return;
 
 		const args = value.split(/ +/);
+
+		if (args[0].toLowerCase() === "sudo" && args.length > 1) {
+			args.shift();
+		}
+
 		const commandName = args.shift().toLowerCase();
 
-		const command = Command.find(commandName);
+		const command = CommandsManager.find(commandName);
 
-		if (!command) {
-			return promptOutput(`${commandName}: Command not found`);
-		}
+		if (!command)
+			return `${commandName}: Command not found`;
+
+		if (command.requireArgs && args.length === 0)
+			return `${commandName}: Incorrect syntax: ${commandName} requires at least 1 argument`;
 		
 		let response = null;
 
@@ -71,19 +70,43 @@ export function Terminal({ setTitle }) {
 				setCurrentDirectory,
 				username: USERNAME,
 				hostname: HOSTNAME,
+				rawInputValue
 			});
 
 			if (response == null)
-				return promptOutput(`${commandName}: Command failed`);
+				return `${commandName}: Command failed`;
 			
 			if (!response.blank)
-				promptOutput(response);
+				return response;
 		} catch (error) {
 			console.error(error);
-			promptOutput(`${commandName}: Command failed`);
+			return `${commandName}: Command failed`;
 		}
 	};
 
+	const submitInput = (value) => {
+		pushHistory({
+			text: prefix + value,
+			isInput: true,
+			value
+		});
+
+		setInputValue("");
+		setHistoryIndex(0);
+
+		// Piping is used to chain commands
+		const segments = value.split(" | ");
+
+		let output = null;
+		segments.forEach((segment) => {
+			// Output from the previous command gets added as an argument for the next command
+			output = handleInput(output ? `${segment} ${output}` : segment);
+		});
+
+		if (output)
+			promptOutput(output);
+	};
+
 	const updateHistoryIndex = (delta) => {
 		const inputHistory = history.filter(({ isInput }) => isInput);
 		const index = clamp(historyIndex + delta, 0, inputHistory.length);
@@ -142,7 +165,7 @@ export function Terminal({ setTitle }) {
 		if (event.button === 2) {
 			event.preventDefault();
 
-			navigator.clipboard.readText().then((text) => {
+			navigator.clipboard.readText?.().then((text) => {
 				setInputValue(inputValue + text);
 			}).catch((error) => {
 				console.error(error);
diff --git a/src/components/applications/terminal/Terminal.module.css b/src/components/applications/terminal/Terminal.module.css
index d984352..7ce74dd 100644
--- a/src/components/applications/terminal/Terminal.module.css
+++ b/src/components/applications/terminal/Terminal.module.css
@@ -15,8 +15,9 @@
 	letter-spacing: 0.01rem;
 }
 
-.Terminal p {
+.Terminal p, .Terminal pre {
 	margin: 0;
+	min-height: 1.25rem;
 }
 
 .Prefix {
diff --git a/src/components/applications/text-editor/TextEditor.jsx b/src/components/applications/text-editor/TextEditor.jsx
index 98929b4..6fe6af9 100644
--- a/src/components/applications/text-editor/TextEditor.jsx
+++ b/src/components/applications/text-editor/TextEditor.jsx
@@ -4,9 +4,7 @@ import styles from "./TextEditor.module.css";
 import { HeaderMenu } from "../.common/HeaderMenu.jsx";
 import Markdown from "markdown-to-jsx";
 import Application from "../../../features/applications/application.js";
-
-const DEFAULT_ZOOM = 16;
-const ZOOM_FACTOR = 4;
+import { DEFAULT_ZOOM, ZOOM_FACTOR } from "../../../constants/applications/textEditor.js";
 
 /**
  * @param {object} props
diff --git a/src/components/modals/dialog-box/DialogBox.jsx b/src/components/modals/dialog-box/DialogBox.jsx
index df342f7..6097621 100644
--- a/src/components/modals/dialog-box/DialogBox.jsx
+++ b/src/components/modals/dialog-box/DialogBox.jsx
@@ -6,10 +6,7 @@ import { ReactSVG } from "react-svg";
 import utilStyles from "../../../styles/utils.module.css";
 import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
 import { faXmark } from "@fortawesome/free-solid-svg-icons";
-
-export const DIALOG_CONTENT_TYPES = {
-	CloseButton: 0
-};
+import { DIALOG_CONTENT_TYPES } from "../../../constants/modals.js";
 
 export function DialogBox({ modal, params }) {
 	const { app, title, children } = params;
diff --git a/src/constants/applications/settings.js b/src/constants/applications/settings.js
new file mode 100644
index 0000000..f218aa6
--- /dev/null
+++ b/src/constants/applications/settings.js
@@ -0,0 +1 @@
+export const WALLPAPERS_PATH = "~/Images/Wallpapers";
\ No newline at end of file
diff --git a/src/constants/applications/terminal.js b/src/constants/applications/terminal.js
new file mode 100644
index 0000000..cf98413
--- /dev/null
+++ b/src/constants/applications/terminal.js
@@ -0,0 +1,3 @@
+export const USERNAME = "user";
+export const HOSTNAME = "prozilla-os";
+export const MAX_WIDTH = 50;
\ No newline at end of file
diff --git a/src/constants/applications/textEditor.js b/src/constants/applications/textEditor.js
new file mode 100644
index 0000000..4c985b9
--- /dev/null
+++ b/src/constants/applications/textEditor.js
@@ -0,0 +1,2 @@
+export const DEFAULT_ZOOM = 16;
+export const ZOOM_FACTOR = 4;
\ No newline at end of file
diff --git a/src/constants/modals.js b/src/constants/modals.js
new file mode 100644
index 0000000..e7c8cb2
--- /dev/null
+++ b/src/constants/modals.js
@@ -0,0 +1,7 @@
+import Vector2 from "../features/math/vector2.js";
+
+export const DIALOG_CONTENT_TYPES = {
+	CloseButton: 0
+};
+
+export const DEFAULT_DIALOG_SIZE = new Vector2(400, 200);
\ No newline at end of file
diff --git a/src/constants/windows.js b/src/constants/windows.js
new file mode 100644
index 0000000..3b55066
--- /dev/null
+++ b/src/constants/windows.js
@@ -0,0 +1,2 @@
+export const SCREEN_MARGIN = 32;
+export const TASKBAR_HEIGHT = 48;
\ No newline at end of file
diff --git a/src/features/applications/terminal/command.js b/src/features/applications/terminal/command.js
new file mode 100644
index 0000000..31fa674
--- /dev/null
+++ b/src/features/applications/terminal/command.js
@@ -0,0 +1,67 @@
+import { VirtualFolder } from "../../virtual-drive/virtualFolder.js";
+import { VirtualRoot } from "../../virtual-drive/virtualRoot.js";
+
+export default class Command {
+	/** @type {string} */
+	name;
+
+	/**
+	 * @param {string[]} args 
+	 * @param {object} options
+	 * @param {Function} options.promptOutput
+	 * @param {Function} options.pushHistory 
+	 * @param {VirtualRoot} options.virtualRoot 
+	 * @param {VirtualFolder} options.currentDirectory 
+	 * @param {Function} options.setCurrentDirectory 
+	 * @param {string} options.username 
+	 * @param {string} options.hostname 
+	 * @param {string} options.rawInputValue 
+	 * @returns {string|{ blank: boolean }}
+	 */
+	execute = (args, options) => {};
+
+	/**
+	 * @param {string} name 
+	 * @param {Function} execute 
+	 */
+	constructor(name, execute) {
+		this.name = name;
+		this.execute = execute;
+	}
+
+	/**
+	 * @param {string} name 
+	 * @returns {Command}
+	 */
+	setName(name) {
+		this.name = name;
+		return this;
+	}
+
+	/**
+	 * @param {Function} execute 
+	 * @returns {Command}
+	 */
+	setExecute(execute) {
+		this.execute = execute;
+		return this;
+	}
+
+	/**
+	 * @param {boolean} value 
+	 * @returns {Command}
+	 */
+	setRequireArgs(value) {
+		this.requireArgs = value;
+		return this;
+	}
+
+	/**
+	 * @param {{ purpose: string, usage: string, description: string}} name 
+	 * @returns {Command}
+	 */
+	setManual({ purpose, usage, description }) {
+		this.manual = { purpose, usage, description };
+		return this;
+	}
+}
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands.js b/src/features/applications/terminal/commands.js
index 5259dc7..012b769 100644
--- a/src/features/applications/terminal/commands.js
+++ b/src/features/applications/terminal/commands.js
@@ -1,23 +1,30 @@
-import { ASCII_LOGO } from "../../../constants/branding.js";
-import { START_DATE } from "../../../index.js";
-import { formatRelativeTime } from "../../utils/date.js";
-import ApplicationsManager from "../applications.js";
+import { blow } from "./commands/blow.js";
+import { cat } from "./commands/cat.js";
+import { cd } from "./commands/cd.js";
+import { clear } from "./commands/clear.js";
+import { cowsay } from "./commands/cowsay.js";
+import { dir } from "./commands/dir.js";
+import { echo } from "./commands/echo.js";
+import { fortune } from "./commands/fortune.js";
+import { hostname } from "./commands/hostname.js";
+import { ls } from "./commands/ls.js";
+import { make } from "./commands/make.js";
+import { man } from "./commands/man.js";
+import { mkdir } from "./commands/mkdir.js";
+import { neofetch } from "./commands/neofetch.js";
+import { nice } from "./commands/nice.js";
+import { pwd } from "./commands/pwd.js";
+import { reboot } from "./commands/reboot.js";
+import { rm } from "./commands/rm.js";
+import { rmdir } from "./commands/rmdir.js";
+import { touch } from "./commands/touch.js";
+import { world } from "./commands/world.js";
 
-export class Command {
+export default class CommandsManager {
 	/**
 	 * @param {string} name 
-	 * @param {Function} execute 
+	 * @returns {CommandsManager}
 	 */
-	constructor(name, execute) {
-		this.name = name;
-		this.execute = execute;
-		this.aliases = [];
-	}
-
-	addAlias(alias) {
-		this.aliases.push(alias);
-	}
-
 	static find(name) {
 		let matchCommand = null;
 
@@ -32,133 +39,26 @@ export class Command {
 	}
 
 	static COMMANDS = [
-		new Command("echo", (args) => {
-			return args.join(" ");
-		}),
-		new Command("clear", (args, { pushHistory }) => {
-			pushHistory({
-				clear: true,
-				isInput: false
-			});
-
-			return { blank: true };
-		}),
-		new Command("ls", (args, { currentDirectory }) => {
-			let directory = currentDirectory;
-
-			if (args.length > 0) {
-				directory = currentDirectory.navigate(args[0]);
-			}
-
-			if (!directory)
-				return `ls: Cannot access '${args[0]}': No such file or directory`;
-
-			const folderNames = directory.subFolders.map((folder) => folder.id);
-			const fileNames = directory.files.map((file) => file.id);
-
-			const contents = folderNames.concat(fileNames);
-
-			if (contents.length === 0)
-				return { blank: true };
-
-			return contents.sort((nameA, nameB) => nameA.localeCompare(nameB)).join(" ");
-		}),
-		new Command("cd", (args, { currentDirectory, setCurrentDirectory }) => {
-			const path = args[0] ?? "~";
-			const destination = currentDirectory.navigate(path);
-
-			if (!destination)
-				return `cd: ${args[0]}: No such file or directory`;
-
-			console.log(destination);
-			setCurrentDirectory(destination);
-			return { blank: true };
-		}),
-		new Command("dir", (args, { currentDirectory }) => {
-			const folderNames = currentDirectory.subFolders.map((folder) => folder.id);
-
-			if (folderNames.length === 0)
-				return { blank: true };
-
-			return folderNames.sort((nameA, nameB) => nameA.localeCompare(nameB)).join(" ");
-		}),
-		new Command("pwd", (args, { currentDirectory }) => {
-			if (currentDirectory.root) {
-				return "/";
-			} else {
-				return currentDirectory.absolutePath;
-			}
-		}),
-		new Command("touch", (args, { currentDirectory }) => {
-			const [name, extension] = args[0].split(".");
-
-			if (currentDirectory.findFile(name, extension))
-				return { blank: true };
-
-			currentDirectory.createFile(name, extension);
-			return { blank: true };
-		}),
-		new Command("mkdir", (args, { currentDirectory }) => {
-			const name = args[0];
-
-			if (currentDirectory.findSubFolder(name))
-				return { blank: true };
-
-			currentDirectory.createFolder(name);
-			return { blank: true };
-		}),
-		new Command("rm", (args, { currentDirectory }) => {
-			const [name, extension] = args[0].split(".");
-			const file = currentDirectory.findFile(name, extension);
-
-			if (!file)
-				return `rm: ${args[0]}: No such file`;
-			
-			file.delete();
-			return { blank: true };
-		}),
-		new Command("rmdir", (args, { currentDirectory }) => {
-			const name = args[0];
-			const folder = currentDirectory.findSubFolder(name);
-
-			if (!folder)
-				return `rm: ${args[0]}: No such directory`;
-			
-			folder.delete();
-			return { blank: true };
-		}),
-		new Command("hostname", (args, { hostname }) => {
-			return hostname;
-		}),
-		new Command("neofetch", (args, { username, hostname }) => {
-			const leftColumn = ASCII_LOGO.split("\n");
-			const rightColumnWidth = username.length + hostname.length + 1;
-			const rightColumn = [
-				`${username}@${hostname}`,
-				"-".repeat(rightColumnWidth),
-				"OS: ProzillaOS",
-				`UPTIME: ${formatRelativeTime(START_DATE, 2, false)}`,
-				`RESOLUTION: ${window.innerWidth}x${window.innerHeight}`,
-				"THEME: default",
-				"ICONS: Font Awesome",
-				`TERMINAL: ${ApplicationsManager.getApplication("terminal")?.name ?? "Unknown"}`,
-			];
-
-			const combined = [];
-			for (let i = 1; i < leftColumn.length; i++) {
-				let line = `${leftColumn[i]}  `;
-
-				if (i <= rightColumn.length) {
-					line += rightColumn[i - 1];
-				} else {
-					// This fixes a weird display bug on Safari mobile
-					line += " ".repeat(rightColumnWidth);
-				}
-
-				combined.push(line);
-			}
-
-			return combined.join("\n");
-		}),
+		echo,
+		clear,
+		ls,
+		cd,
+		dir,
+		pwd,
+		touch,
+		mkdir,
+		rm,
+		rmdir,
+		hostname,
+		neofetch,
+		fortune,
+		cowsay,
+		world,
+		nice,
+		blow,
+		make,
+		cat,
+		man,
+		reboot,
 	];
 }
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/blow.js b/src/features/applications/terminal/commands/blow.js
new file mode 100644
index 0000000..76aeb3c
--- /dev/null
+++ b/src/features/applications/terminal/commands/blow.js
@@ -0,0 +1,5 @@
+import Command from "../command.js";
+
+export const blow = new Command("%blow", () => {
+	return "fg: %blow: No such job";
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/cat.js b/src/features/applications/terminal/commands/cat.js
new file mode 100644
index 0000000..59f6c88
--- /dev/null
+++ b/src/features/applications/terminal/commands/cat.js
@@ -0,0 +1,24 @@
+import Command from "../command.js";
+
+export const cat = new Command("cat")
+	.setRequireArgs(true)
+	.setManual({
+		purpose: "Concetenate files and print on the standard output",
+		usage: "cat [OPTION]... [FILE]...",
+		description: "Concetenate FILE(s) to standard output."
+	})
+	.setExecute((args, { currentDirectory }) => {
+		const [name, extension] = args[0].split(".");
+		const file = currentDirectory.findFile(name, extension);
+	
+		if (!file)
+			return `rm: ${args[0]}: No such file`;
+	
+		if (file.content) {
+			return file.content;
+		} else if (file.source) {
+			return `Src: ${file.source}`;
+		} else {
+			return { blank: true };
+		}
+	});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/cd.js b/src/features/applications/terminal/commands/cd.js
new file mode 100644
index 0000000..8064670
--- /dev/null
+++ b/src/features/applications/terminal/commands/cd.js
@@ -0,0 +1,13 @@
+import Command from "../command.js";
+
+export const cd = new Command("cd", (args, { currentDirectory, setCurrentDirectory }) => {
+	const path = args[0] ?? "~";
+	const destination = currentDirectory.navigate(path);
+
+	if (!destination)
+		return `cd: ${args[0]}: No such file or directory`;
+
+	console.log(destination);
+	setCurrentDirectory(destination);
+	return { blank: true };
+}).setRequireArgs(true);
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/clear.js b/src/features/applications/terminal/commands/clear.js
new file mode 100644
index 0000000..e6c1de8
--- /dev/null
+++ b/src/features/applications/terminal/commands/clear.js
@@ -0,0 +1,10 @@
+import Command from "../command.js";
+
+export const clear = new Command("clear", (args, { pushHistory }) => {
+	pushHistory({
+		clear: true,
+		isInput: false
+	});
+
+	return { blank: true };
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/cowsay.js b/src/features/applications/terminal/commands/cowsay.js
new file mode 100644
index 0000000..1f00ba9
--- /dev/null
+++ b/src/features/applications/terminal/commands/cowsay.js
@@ -0,0 +1,99 @@
+import { MAX_WIDTH } from "../../../../constants/applications/terminal.js";
+import Command from "../command.js";
+
+const COW = `
+        \\   ^__^
+         \\  (oo)\\_______
+            (__)\\       )\\/\\
+                ||----w |
+                ||     ||`;
+
+export const cowsay = new Command("cowsay", (args, { rawInputValue }) => {
+	// Separate input value into lines
+	const segments = rawInputValue.split(" ");
+	const lines = [];
+	let currentLine = "";
+	let maxLineWidth = 0;
+
+	const addLine = (line) => {
+		line = line.trimEnd();
+		lines.push(line);
+		if (line.length > maxLineWidth)
+			maxLineWidth = line.length;
+	};
+
+	const nextLine = (word) => {
+		addLine(currentLine);
+
+		if (word) {
+			currentLine = word + " ";
+		} else {
+			currentLine = "";
+		}
+	};
+
+	segments.forEach((segment) => {
+		// Add empty spaces preceding lines
+		if (segment === "") {
+			currentLine += " ";
+			return;
+		}
+
+		const words = segment.split("\n");
+		for (let i = 0; i < words.length; i++) {
+			const word = words[i];
+			
+			// Handle next lines
+			if (i > 0)
+				nextLine();
+
+			// Fit word on current line
+			if ((currentLine + word).length <= MAX_WIDTH) {
+				currentLine += word + " ";
+			} else if (word.length > MAX_WIDTH) {
+				const remainingSpaces = MAX_WIDTH - currentLine.length;
+
+				if (remainingSpaces >= 2) {
+					addLine(currentLine + word.substring(0, remainingSpaces - 1) + "-");
+					currentLine = word.substring(remainingSpaces - 1) + " ";
+				} else {
+					nextLine(word);
+				}
+			} else {
+				nextLine(word);
+			}
+		}
+	});
+
+	if (currentLine.length > 0)
+		addLine(currentLine);
+
+	// Turn lines into speech bubble
+	const speechBubble = [` ${"_".repeat(maxLineWidth + 2)} `];
+
+	for (let i = 0; i < lines.length; i++) {
+		let line = lines[i];
+		const missingSpaces = maxLineWidth - line.length;
+
+		if (missingSpaces > 0)
+			line += " ".repeat(missingSpaces);
+
+		if (lines.length > 1) {
+			if (i === 0) {
+				line = `/ ${line} \\`;
+			} else if (i === lines.length - 1) {
+				line = `\\ ${line} /`;
+			} else {
+				line = `| ${line} |`;
+			}
+		} else {
+			line = `< ${line} >`;
+		}
+
+		speechBubble.push(line);
+	}
+
+	speechBubble.push(` ${"-".repeat(maxLineWidth + 2)} `);
+
+	return speechBubble.join("\n") + COW;
+}).setRequireArgs(true);
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/dir.js b/src/features/applications/terminal/commands/dir.js
new file mode 100644
index 0000000..e2db95c
--- /dev/null
+++ b/src/features/applications/terminal/commands/dir.js
@@ -0,0 +1,10 @@
+import Command from "../command.js";
+
+export const dir = new Command("dir", (args, { currentDirectory }) => {
+	const folderNames = currentDirectory.subFolders.map((folder) => folder.id);
+
+	if (folderNames.length === 0)
+		return { blank: true };
+
+	return folderNames.sort((nameA, nameB) => nameA.localeCompare(nameB)).join(" ");
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/echo.js b/src/features/applications/terminal/commands/echo.js
new file mode 100644
index 0000000..b8b8bce
--- /dev/null
+++ b/src/features/applications/terminal/commands/echo.js
@@ -0,0 +1,5 @@
+import Command from "../command.js";
+
+export const echo = new Command("echo", (args, { rawInputValue }) => {
+	return rawInputValue;
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/fortune.js b/src/features/applications/terminal/commands/fortune.js
new file mode 100644
index 0000000..723a482
--- /dev/null
+++ b/src/features/applications/terminal/commands/fortune.js
@@ -0,0 +1,99 @@
+import { randomFromArray } from "../../../utils/array.js";
+import Command from "../command.js";
+
+/**
+ * Source: https://github.com/shlomif/fortune-mod/blob/master/fortune-mod/datfiles/fortunes
+ */
+const FORTUNES = [
+	"A day for firm decisions!!!!! Or is it?",
+	"Just to have it is enough.",
+	"Keep emotionally active. Cater to your favorite neurosis.",
+	"Keep it short for pithy sake.",
+	"Lady Luck brings added income today. Lady friend takes it away tonight.",
+	"Learn to pause -- or nothing worthwhile can catch up to you.",
+	"Let me put it this way: today is going to be a learning experience.",
+	"Life is to you a dashing and bold adventure.",
+	"\"Life, loathe it or ignore it, you can't like it.\"\n\n 		-- Marvin, \"Hitchhiker's Guide to the Galaxy\"",
+	"Live in a world of your own, but always welcome visitors.",
+	"Living your life is a task so difficult, it has never been attempted before.",
+	"Long life is in store for you.",
+	"Look afar and see the end from the beginning.",
+	"Love is in the offing. Be affectionate to one who adores you.",
+	"Make a wish, it might come true.",
+	"Many changes of mind and mood; do not hesitate too long.",
+	"Never be led astray onto the path of virtue.",
+	"Never commit yourself!  Let someone else commit you.",
+	"Never give an inch!",
+	"Never look up when dragons fly overhead.",
+	"Never reveal your best argument.",
+	"Next Friday will not be your lucky day. As a matter of fact, you don't have a lucky day this year.",
+	"Of course you have a purpose -- to find a purpose.",
+	"People are beginning to notice you. Try dressing before you leave the house.",
+	"Perfect day for scrubbing the floor and other exciting things.",
+	"Questionable day.\n\nAsk somebody something.",
+	"Reply hazy, ask again later.",
+	"Save energy: be apathetic.",
+	"Ships are safe in harbor, but they were never meant to stay there.",
+	"Slow day. Practice crawling.",
+	"Snow Day -- stay home.",
+	"So this is it. We're going to die.",
+	"So you're back... about time...",
+	"Someone is speaking well of you.",
+	"Someone is speaking well of you.\n\nHow unusual!",
+	"Someone whom you reject today, will reject you tomorrow.",
+	"Stay away from flying saucers today.",
+	"Stay away from hurricanes for a while.",
+	"Stay the curse.",
+	"That secret you've been guarding, isn't.",
+	"The time is right to make new friends.",
+	"The whole world is a tuxedo and you are a pair of brown shoes.\n\n		-- George Gobel",
+	"There is a 20% chance of tomorrow.",
+	"There is a fly on your nose.",
+	"There was a phone call for you.",
+	"You're not my type. For that matter, you're not even my species!!!",
+	"You're ugly and your mother dresses you funny.",
+	"You're working under a slight handicap. You happen to be human.",
+	"You've been leading a dog's life. Stay off the furniture.",
+	"Your aim is high and to the right.",
+	"Your aims are high, and you are capable of much.",
+	"Your analyst has you mixed up with another patient. Don't believe a thing he tells you.",
+	"Your best consolation is the hope that the things you failed to get weren't really worth having.",
+	"Your boss climbed the corporate ladder, wrong by wrong.",
+	"Your boss is a few sandwiches short of a picnic.",
+	"Your boyfriend takes chocolate from strangers.",
+	"Your business will assume vast proportions.",
+	"Your business will go through a period of considerable expansion.",
+	"Your depth of comprehension may tend to make you lax in worldly ways.",
+	"Your domestic life may be harmonious.",
+	"Your fly might be open (but don't check it just now).",
+	"Your goose is cooked. (Your current chick is burned up too!)",
+	"Your heart is pure, and your mind clear, and your soul devout.",
+	"Your ignorance cramps my conversation.",
+	"Your life would be very empty if you had nothing to regret.",
+	"Your love life will be happy and harmonious.",
+	"Your love life will be... interesting.",
+	"Your lover will never wish to leave you.",
+	"Your lucky color has faded.",
+	"Your lucky number has been disconnected.",
+	"Your lucky number is 3552664958674928. Watch for it everywhere.",
+	"Your mode of life will be changed for the better because of good news soon.",
+	"Your mode of life will be changed for the better because of new developments.",
+	"Your motives for doing whatever good deed you may have in mind will be misinterpreted by somebody.",
+	"Your nature demands love and your happiness depends on it.",
+	"Your object is to save the world, while still leading a pleasant life.",
+	"Your own qualities will help prevent your advancement in the world.",
+	"Your present plans will be successful.",
+	"Your reasoning is excellent -- it's only your basic assumptions that are wrong.",
+	"Your reasoning powers are good, and you are a fairly good planner.",
+	"Your sister swims out to meet troop ships.",
+	"Your society will be sought by people of taste and refinement.",
+	"Your step will soil many countries.",
+	"Your supervisor is thinking about you.",
+	"Your talents will be recognized and suitably rewarded.",
+	"Your temporary financial embarrassment will be relieved in a surprising manner.",
+	"Your true value depends entirely on what you are compared with.",
+];
+
+export const fortune = new Command("fortune", () => {
+	return randomFromArray(FORTUNES);
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/hostname.js b/src/features/applications/terminal/commands/hostname.js
new file mode 100644
index 0000000..d0d516a
--- /dev/null
+++ b/src/features/applications/terminal/commands/hostname.js
@@ -0,0 +1,5 @@
+import Command from "../command.js";
+
+export const hostname = new Command("hostname", (args, { hostname }) => {
+	return hostname;
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/ls.js b/src/features/applications/terminal/commands/ls.js
new file mode 100644
index 0000000..cf03910
--- /dev/null
+++ b/src/features/applications/terminal/commands/ls.js
@@ -0,0 +1,29 @@
+import Command from "../command.js";
+
+export const ls = new Command("ls")
+	.setManual({
+		purpose: "list directory contents",
+		usage: "ls [OPTION]... [FILE]...",
+		description: "List information about the FILEs (the current directory by default).\n"
+			+ "Sort entries alphabetically if none of -cftuvSUX nor --sort is specified."
+	})
+	.setExecute((args, { currentDirectory }) => {
+		let directory = currentDirectory;
+	
+		if (args.length > 0) {
+			directory = currentDirectory.navigate(args[0]);
+		}
+	
+		if (!directory)
+			return `ls: Cannot access '${args[0]}': No such file or directory`;
+	
+		const folderNames = directory.subFolders.map((folder) => folder.id);
+		const fileNames = directory.files.map((file) => file.id);
+	
+		const contents = folderNames.concat(fileNames);
+	
+		if (contents.length === 0)
+			return { blank: true };
+	
+		return contents.sort((nameA, nameB) => nameA.localeCompare(nameB)).join(" ");
+	});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/make.js b/src/features/applications/terminal/commands/make.js
new file mode 100644
index 0000000..8b79b80
--- /dev/null
+++ b/src/features/applications/terminal/commands/make.js
@@ -0,0 +1,6 @@
+import Command from "../command.js";
+
+export const make = new Command("make", (args) => {
+	if (args[0] === "love")
+		return "make: *** No rule to make target `love'.  Stop.";
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/man.js b/src/features/applications/terminal/commands/man.js
new file mode 100644
index 0000000..ff525be
--- /dev/null
+++ b/src/features/applications/terminal/commands/man.js
@@ -0,0 +1,54 @@
+import Command from "../command.js";
+import CommandsManager from "../commands.js";
+
+const MARGIN = 5;
+
+export const man = new Command("man")
+	.setRequireArgs(true)
+	.setManual({
+		purpose: "show system reference manuals",
+		usage: "man [OPTION]... page",
+		description: "Each page arguments given to man is normally the name of a command.\n"
+			+ "The manual page associated with this command is then found and displayed."
+	})
+	.setExecute((args) => {
+		const commandName = args[0].toLowerCase();
+		const command = CommandsManager.find(commandName);
+
+		if (!command)
+			return `man: ${commandName}: Command not found`;
+
+		const manual = command.manual;
+
+		if (!manual)
+			return `man: ${commandName}: No manual found`;
+
+		const formatText = (text) => {
+			const lines = text.split("\n").map((line) => " ".repeat(MARGIN) + line);
+			return lines.join("\n");
+		};
+
+		const sections = [["NAME"]];
+
+		if (manual.purpose) {
+			sections[0].push(formatText(`${commandName} - ${command.manual.purpose}`));
+		} else {
+			sections[0].push(formatText(commandName));
+		}
+
+		if (manual.usage) {
+			sections.push([
+				"SYNOPSIS",
+				formatText(manual.usage)
+			]);
+		}
+		
+		if (manual.description) {
+			sections.push([
+				"DESCRIPTION",
+				formatText(manual.description)
+			]);
+		}
+
+		return sections.map((section) => section.join("\n")).join("\n\n");
+	});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/mkdir.js b/src/features/applications/terminal/commands/mkdir.js
new file mode 100644
index 0000000..4df7881
--- /dev/null
+++ b/src/features/applications/terminal/commands/mkdir.js
@@ -0,0 +1,11 @@
+import Command from "../command.js";
+
+export const mkdir = new Command("mkdir", (args, { currentDirectory }) => {
+	const name = args[0];
+
+	if (currentDirectory.findSubFolder(name))
+		return { blank: true };
+
+	currentDirectory.createFolder(name);
+	return { blank: true };
+}).setRequireArgs(true);
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/neofetch.js b/src/features/applications/terminal/commands/neofetch.js
new file mode 100644
index 0000000..5f50d27
--- /dev/null
+++ b/src/features/applications/terminal/commands/neofetch.js
@@ -0,0 +1,56 @@
+import { ASCII_LOGO, NAME } from "../../../../constants/branding.js";
+import { START_DATE } from "../../../../index.js";
+import { formatRelativeTime } from "../../../utils/date.js";
+import ApplicationsManager from "../../applications.js";
+import Command from "../command.js";
+
+export const neofetch = new Command("neofetch", (args, { username, hostname }) => {
+	const leftColumn = ASCII_LOGO.split("\n");
+	const rightColumnWidth = username.length + hostname.length + 1;
+
+	const userAgent = navigator.userAgent;
+
+	// Check for the browser name using regular expressions
+	let browserName;
+	if (userAgent.match(/Firefox\//)) {
+		browserName = "Mozilla Firefox";
+	} else if (userAgent.match(/Edg\//)) {
+		browserName = "Microsoft Edge";
+	} else if (userAgent.match(/Chrome\//)) {
+		browserName = "Google Chrome";
+	} else if (userAgent.match(/Safari\//)) {
+		browserName = "Apple Safari";
+	} else {
+		browserName = "Unknown";
+	}
+
+	const rightColumn = [
+		`${username}@${hostname}`,
+		"-".repeat(rightColumnWidth),
+		`OS: ${NAME}`,
+		`UPTIME: ${formatRelativeTime(START_DATE, 2, false)}`,
+		`RESOLUTION: ${window.innerWidth}x${window.innerHeight}`,
+		"THEME: default",
+		"ICONS: Font Awesome",
+		`TERMINAL: ${ApplicationsManager.getApplication("terminal")?.name ?? "Unknown"}`,
+		`BROWSER: ${browserName}`,
+		`PLATFORM: ${navigator.platform}`,
+		`LANGUAGE: ${navigator.language}`,
+	];
+
+	const combined = [];
+	for (let i = 1; i < leftColumn.length; i++) {
+		let line = `${leftColumn[i]}  `;
+
+		if (i <= rightColumn.length) {
+			line += rightColumn[i - 1];
+		} else {
+			// This fixes a weird display bug on Safari mobile
+			line += " ".repeat(rightColumnWidth);
+		}
+
+		combined.push(line);
+	}
+
+	return combined.join("\n");
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/nice.js b/src/features/applications/terminal/commands/nice.js
new file mode 100644
index 0000000..2f82ebc
--- /dev/null
+++ b/src/features/applications/terminal/commands/nice.js
@@ -0,0 +1,6 @@
+import Command from "../command.js";
+
+export const nice = new Command("nice", (args) => {
+	if (args[0] === "man" && args[1] === "woman")
+		return "nice: No manual entry for woman";
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/pwd.js b/src/features/applications/terminal/commands/pwd.js
new file mode 100644
index 0000000..094aceb
--- /dev/null
+++ b/src/features/applications/terminal/commands/pwd.js
@@ -0,0 +1,9 @@
+import Command from "../command.js";
+
+export const pwd = new Command("pwd", (args, { currentDirectory }) => {
+	if (currentDirectory.root) {
+		return "/";
+	} else {
+		return currentDirectory.absolutePath;
+	}
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/reboot.js b/src/features/applications/terminal/commands/reboot.js
new file mode 100644
index 0000000..865312e
--- /dev/null
+++ b/src/features/applications/terminal/commands/reboot.js
@@ -0,0 +1,7 @@
+import { reloadViewport } from "../../../utils/browser.js";
+import Command from "../command.js";
+
+export const reboot = new Command("reboot", () => {
+	reloadViewport();
+	return { blank: true };
+});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/rm.js b/src/features/applications/terminal/commands/rm.js
new file mode 100644
index 0000000..ea3a5d9
--- /dev/null
+++ b/src/features/applications/terminal/commands/rm.js
@@ -0,0 +1,12 @@
+import Command from "../command.js";
+
+export const rm = new Command("rm", (args, { currentDirectory }) => {
+	const [name, extension] = args[0].split(".");
+	const file = currentDirectory.findFile(name, extension);
+
+	if (!file)
+		return `rm: ${args[0]}: No such file`;
+	
+	file.delete();
+	return { blank: true };
+}).setRequireArgs(true);
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/rmdir.js b/src/features/applications/terminal/commands/rmdir.js
new file mode 100644
index 0000000..2cedd17
--- /dev/null
+++ b/src/features/applications/terminal/commands/rmdir.js
@@ -0,0 +1,12 @@
+import Command from "../command.js";
+
+export const rmdir = new Command("rmdir", (args, { currentDirectory }) => {
+	const name = args[0];
+	const folder = currentDirectory.findSubFolder(name);
+
+	if (!folder)
+		return `rmdir: ${args[0]}: No such directory`;
+	
+	folder.delete();
+	return { blank: true };
+}).setRequireArgs(true);
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/touch.js b/src/features/applications/terminal/commands/touch.js
new file mode 100644
index 0000000..9b405c3
--- /dev/null
+++ b/src/features/applications/terminal/commands/touch.js
@@ -0,0 +1,22 @@
+import Command from "../command.js";
+
+export const touch = new Command("touch")
+	.setRequireArgs(true)
+	.setManual({
+		purpose: "change file timestamps",
+		usage: "touch [OPTION]... FILE...",
+		description: "Update the access and modification times of each FILE to the current time.\n\n"
+			+ "A FILE argument that does not exist is created empty."
+	})
+	.setExecute((args, { currentDirectory }) => {
+		if (args[0] === "girls\\" && args[1] === "boo**")
+			return "touch: Cannot touch 'girls boo**': Permission denied";
+	
+		const [name, extension] = args[0].split(".");
+	
+		if (currentDirectory.findFile(name, extension))
+			return { blank: true };
+	
+		currentDirectory.createFile(name, extension);
+		return { blank: true };
+	});
\ No newline at end of file
diff --git a/src/features/applications/terminal/commands/world.js b/src/features/applications/terminal/commands/world.js
new file mode 100644
index 0000000..6a46490
--- /dev/null
+++ b/src/features/applications/terminal/commands/world.js
@@ -0,0 +1,5 @@
+import Command from "../command.js";
+
+export const world = new Command("world", () => {
+	return "world: Not found";
+});
\ No newline at end of file
diff --git a/src/features/utils/array.js b/src/features/utils/array.js
index fbc90a1..7af3bef 100644
--- a/src/features/utils/array.js
+++ b/src/features/utils/array.js
@@ -7,4 +7,12 @@ export function removeFromArray(item, array) {
 	if (index !== -1) {
 		array.splice(index, 1);
 	}
+}
+
+/**
+ * @param {*[]} array 
+ * @returns {*}
+ */
+export function randomFromArray(array) {
+	return array[Math.floor(Math.random() * array.length)];
 }
\ No newline at end of file
diff --git a/src/features/windows/windowsManager.js b/src/features/windows/windowsManager.js
index f9763e0..0334126 100644
--- a/src/features/windows/windowsManager.js
+++ b/src/features/windows/windowsManager.js
@@ -1,11 +1,9 @@
+import { SCREEN_MARGIN, TASKBAR_HEIGHT } from "../../constants/windows.js";
 import ApplicationsManager from "../applications/applications.js";
 import { randomRange } from "../math/random.js";
 import Vector2 from "../math/vector2.js";
 import { VirtualFile } from "../virtual-drive/virtualFile.js";
 
-export const SCREEN_MARGIN = 32;
-export const TASKBAR_HEIGHT = 48;
-
 export default class WindowsManager {
 	constructor() {
 		this.windows = {};
diff --git a/src/hooks/modals/dialogBox.js b/src/hooks/modals/dialogBox.js
index 15a0504..48bcee4 100644
--- a/src/hooks/modals/dialogBox.js
+++ b/src/hooks/modals/dialogBox.js
@@ -2,12 +2,11 @@ import { useCallback } from "react";
 import Modal from "../../features/modals/modal.js";
 import { DialogBox } from "../../components/modals/dialog-box/DialogBox.jsx";
 import Vector2 from "../../features/math/vector2.js";
-
-const DEFAULT_SIZE = new Vector2(400, 200);
+import { DEFAULT_DIALOG_SIZE } from "../../constants/modals.js";
 
 export function useDialogBox({ modalsManager }) {
 	const onDialogBox = useCallback((event, params = {}) => {
-		const size = params.size ?? DEFAULT_SIZE;
+		const size = params.size ?? DEFAULT_DIALOG_SIZE;
 		let positionX = (window.innerWidth - size.x) / 4;
 		let positionY = (window.innerHeight - size.y) / 4;