Files
EnhancedTerminal/TerminalSession.swift
2026-01-31 23:01:54 +00:00

446 lines
16 KiB
Swift

import Cocoa
// MARK: - Terminal Session
class TerminalSession: NSObject, NSTextViewDelegate, NSMenuDelegate {
var textView: NSTextView!
var scrollView: NSScrollView! // Store scroll view as property
var shellTask: Process?
var inputPipe: Pipe?
var outputPipe: Pipe?
var promptPosition = 0
var sessionID: UUID
var title: String
private var suggestionLabel: NSTextField?
private var currentSuggestion: String?
init(title: String = "Terminal") {
self.sessionID = UUID()
self.title = title
super.init()
}
func setupTextView(frame: NSRect) {
scrollView = NSScrollView(frame: frame)
scrollView.autoresizingMask = [.width, .height]
scrollView.hasVerticalScroller = true
scrollView.hasHorizontalScroller = false
textView = NSTextView(frame: scrollView.bounds)
textView.autoresizingMask = [.width, .height]
textView.isEditable = true
textView.delegate = self
textView.isRichText = true
textView.allowsUndo = true
textView.usesFindBar = true
applyTheme()
scrollView.documentView = textView
// Setup context menu
setupContextMenu()
// Setup suggestion label
setupSuggestionLabel()
}
private func setupContextMenu() {
let menu = NSMenu()
menu.delegate = self
let copyItem = NSMenuItem(title: "Copy", action: #selector(NSText.copy(_:)), keyEquivalent: "")
let pasteItem = NSMenuItem(title: "Paste", action: #selector(NSText.paste(_:)), keyEquivalent: "")
let selectAllItem = NSMenuItem(title: "Select All", action: #selector(NSText.selectAll(_:)), keyEquivalent: "")
menu.addItem(copyItem)
menu.addItem(pasteItem)
menu.addItem(selectAllItem)
menu.addItem(NSMenuItem.separator())
let saveSnippetItem = NSMenuItem(title: "Save as Snippet", action: #selector(saveSelectionAsSnippet), keyEquivalent: "")
saveSnippetItem.target = self
menu.addItem(saveSnippetItem)
textView.menu = menu
}
@objc private func saveSelectionAsSnippet() {
let selectedRange = textView.selectedRange()
guard selectedRange.length > 0 else { return }
let selectedText = (textView.string as NSString).substring(with: selectedRange).trimmingCharacters(in: .whitespacesAndNewlines)
guard !selectedText.isEmpty else { return }
let alert = NSAlert()
alert.messageText = "Save as Snippet"
alert.informativeText = "Enter details for this snippet:"
let nameField = NSTextField(frame: NSRect(x: 0, y: 60, width: 300, height: 24))
nameField.placeholderString = "Snippet name"
let categoryField = NSTextField(frame: NSRect(x: 0, y: 30, width: 300, height: 24))
categoryField.placeholderString = "Category (optional)"
let descField = NSTextField(frame: NSRect(x: 0, y: 0, width: 300, height: 24))
descField.placeholderString = "Description (optional)"
let commandLabel = NSTextField(labelWithString: "Command: \(selectedText)")
commandLabel.frame = NSRect(x: 0, y: 90, width: 300, height: 20)
commandLabel.font = NSFont.systemFont(ofSize: 11)
commandLabel.textColor = .secondaryLabelColor
commandLabel.lineBreakMode = .byTruncatingTail
let view = NSView(frame: NSRect(x: 0, y: 0, width: 300, height: 115))
view.addSubview(commandLabel)
view.addSubview(nameField)
view.addSubview(categoryField)
view.addSubview(descField)
alert.accessoryView = view
alert.addButton(withTitle: "Save")
alert.addButton(withTitle: "Cancel")
if alert.runModal() == .alertFirstButtonReturn {
let snippet = SnippetManager.Snippet(
name: nameField.stringValue.isEmpty ? "Untitled" : nameField.stringValue,
command: selectedText,
description: descField.stringValue,
category: categoryField.stringValue.isEmpty ? "General" : categoryField.stringValue
)
SnippetManager.shared.addSnippet(snippet)
// Show confirmation
let confirmation = NSAlert()
confirmation.messageText = "Snippet Saved"
confirmation.informativeText = "Your snippet has been saved. Access it with Cmd+P."
confirmation.alertStyle = .informational
confirmation.addButton(withTitle: "OK")
confirmation.runModal()
}
}
private func setupSuggestionLabel() {
suggestionLabel = NSTextField(frame: .zero)
suggestionLabel?.isEditable = false
suggestionLabel?.isSelectable = false
suggestionLabel?.isBordered = false
suggestionLabel?.backgroundColor = .clear
suggestionLabel?.isHidden = true
if let label = suggestionLabel {
textView.addSubview(label)
}
}
func applyTheme() {
let theme = TerminalSettings.shared.theme
textView?.backgroundColor = theme.background
textView?.textColor = theme.foreground
textView?.insertionPointColor = theme.cursor
textView?.selectedTextAttributes = [
.backgroundColor: theme.selection
]
textView?.font = NSFont(name: TerminalSettings.shared.fontName, size: TerminalSettings.shared.fontSize) ?? NSFont.monospacedSystemFont(ofSize: TerminalSettings.shared.fontSize, weight: .regular)
suggestionLabel?.textColor = theme.suggestion
suggestionLabel?.font = textView?.font
}
func startShell() {
shellTask = Process()
inputPipe = Pipe()
outputPipe = Pipe()
shellTask?.executableURL = URL(fileURLWithPath: "/bin/zsh")
shellTask?.arguments = ["-l"] // Login shell for proper initialization
// Better environment setup
var env = ProcessInfo.processInfo.environment
env["TERM"] = "xterm-256color"
env["PS1"] = "$ "
env["PROMPT"] = "$ "
env["DISABLE_AUTO_TITLE"] = "true"
shellTask?.environment = env
shellTask?.standardInput = inputPipe
shellTask?.standardOutput = outputPipe
shellTask?.standardError = outputPipe
outputPipe?.fileHandleForReading.readabilityHandler = { [weak self] handle in
let data = handle.availableData
if data.count > 0, let output = String(data: data, encoding: .utf8) {
DispatchQueue.main.async {
self?.appendText(output)
}
}
}
do {
try shellTask?.run()
appendText("Enhanced Terminal v3.0\n")
appendText("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n")
appendText("Features:\n")
appendText(" • Cmd+T: New tab\n")
appendText(" • Cmd+R: Search history (fuzzy search)\n")
appendText(" • Cmd+K: AI command generator\n")
appendText(" • Cmd+P: Command snippets\n")
appendText(" • Tab: Accept auto-suggestion\n")
appendText(" • Type 'help' for more commands\n")
appendText("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n\n")
// Wait a bit for shell to initialize, then show prompt
DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) { [weak self] in
self?.showPrompt()
}
} catch {
appendText("Error starting shell: \(error)\n")
}
}
func showPrompt() {
appendText("$ ")
promptPosition = textView.string.count
}
func appendText(_ text: String) {
let cleaned = cleanANSI(text)
let theme = TerminalSettings.shared.theme
let attr = NSAttributedString(string: cleaned, attributes: [
.foregroundColor: theme.foreground,
.font: NSFont(name: TerminalSettings.shared.fontName, size: TerminalSettings.shared.fontSize) ?? NSFont.monospacedSystemFont(ofSize: TerminalSettings.shared.fontSize, weight: .regular)
])
textView.textStorage?.append(attr)
textView.scrollToEndOfDocument(nil)
}
private func cleanANSI(_ text: String) -> String {
var cleaned = text
// Remove ANSI escape sequences
let patterns = [
"\u{1B}\\[[0-9;]*[a-zA-Z]",
"\u{1B}\\][0-9];[^\u{07}]*\u{07}",
"\\]633;[^\u{07}]*\u{07}",
"\\]697;[^\u{07}]*\u{07}",
"\\]1337;[^\u{07}]*\u{07}",
"\\]1;[^\u{07}]*\u{07}",
"\\]2;[^\u{07}]*\u{07}",
"\\]7;[^\u{07}]*\\\\",
"\u{1B}\\]0;[^\u{07}]*\u{07}"
]
for pattern in patterns {
cleaned = cleaned.replacingOccurrences(of: pattern, with: "", options: .regularExpression)
}
return cleaned
}
func textView(_ textView: NSTextView, shouldChangeTextIn range: NSRange, replacementString: String?) -> Bool {
// Don't allow editing before the prompt
if range.location < promptPosition {
return false
}
// Handle Enter key
if replacementString == "\n" {
let command = getCurrentCommand()
executeCommand(command)
hideSuggestion()
return false
}
// Handle Tab key for accepting suggestions
if replacementString == "\t" {
if let suggestion = currentSuggestion {
acceptSuggestion(suggestion)
return false
}
}
// Update suggestions after text changes
DispatchQueue.main.async { [weak self] in
self?.updateSuggestion()
}
return true
}
private func getCurrentCommand() -> String {
guard promptPosition <= textView.string.count else { return "" }
let startIndex = textView.string.index(textView.string.startIndex, offsetBy: promptPosition)
return String(textView.string[startIndex...])
}
private func updateSuggestion() {
guard TerminalSettings.shared.enableAutoSuggestions else {
hideSuggestion()
return
}
let partial = getCurrentCommand()
guard !partial.isEmpty else {
hideSuggestion()
return
}
if let suggestion = HistoryManager.shared.getSuggestion(for: partial) {
showSuggestion(suggestion, for: partial)
} else {
hideSuggestion()
}
}
private func showSuggestion(_ fullCommand: String, for partial: String) {
guard let label = suggestionLabel else { return }
currentSuggestion = fullCommand
// Get the remaining part of the suggestion
let remaining = String(fullCommand.dropFirst(partial.count))
label.stringValue = remaining
// Position the label at the cursor
if let layoutManager = textView.layoutManager,
let textContainer = textView.textContainer {
let glyphRange = layoutManager.glyphRange(for: textContainer)
let lastGlyphIndex = layoutManager.glyphIndexForCharacter(at: textView.string.count)
if lastGlyphIndex < glyphRange.upperBound {
let rect = layoutManager.boundingRect(forGlyphRange: NSRange(location: lastGlyphIndex, length: 0), in: textContainer)
label.frame = NSRect(x: rect.maxX, y: rect.minY, width: 400, height: rect.height)
label.isHidden = false
}
}
}
private func hideSuggestion() {
currentSuggestion = nil
suggestionLabel?.isHidden = true
}
private func acceptSuggestion(_ suggestion: String) {
let partial = getCurrentCommand()
let remaining = String(suggestion.dropFirst(partial.count))
textView.insertText(remaining, replacementRange: NSRange(location: textView.string.count, length: 0))
hideSuggestion()
}
func executeCommand(_ command: String) {
appendText("\n")
let trimmed = command.trimmingCharacters(in: .whitespacesAndNewlines)
// Handle built-in commands
if trimmed == "exit" {
NSApp.terminate(nil)
return
}
if trimmed == "clear" {
textView.string = ""
showPrompt()
return
}
if trimmed == "help" {
showHelp()
showPrompt()
return
}
// Add to history
if !trimmed.isEmpty {
HistoryManager.shared.addCommand(trimmed)
// Send to shell
if let data = (trimmed + "\n").data(using: .utf8) {
inputPipe?.fileHandleForWriting.write(data)
}
}
// Show prompt after a delay
DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) { [weak self] in
self?.showPrompt()
}
}
private func showHelp() {
appendText("""
Enhanced Terminal Commands:
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Keyboard Shortcuts:
• Cmd+T - New tab
• Cmd+W - Close tab
• Cmd+R - Search command history (fuzzy search)
• Cmd+K - AI command generator
• Cmd+P - Command snippets
• Cmd+, - Settings
• Tab - Accept auto-suggestion
• Cmd+Plus - Increase font size
• Cmd+Minus - Decrease font size
Built-in Commands:
• clear - Clear screen
• help - Show this help
• exit - Quit application
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
""")
}
func insertCommand(_ command: String) {
textView.insertText(command, replacementRange: NSRange(location: textView.string.count, length: 0))
textView.window?.makeFirstResponder(textView)
}
func cleanup() {
shellTask?.terminate()
outputPipe?.fileHandleForReading.readabilityHandler = nil
}
// MARK: - NSMenuDelegate
func menuNeedsUpdate(_ menu: NSMenu) {
// Enable "Save as Snippet" only if there's selected text
if let saveSnippetItem = menu.items.first(where: { $0.action == #selector(saveSelectionAsSnippet) }) {
let hasSelection = textView.selectedRange().length > 0
saveSnippetItem.isEnabled = hasSelection
}
}
deinit {
cleanup()
}
}
// MARK: - Tab Manager
class TabManager {
var tabs: [TerminalSession] = []
var currentIndex: Int = 0
func addTab(title: String = "Terminal") -> TerminalSession {
let session = TerminalSession(title: "\(title) \(tabs.count + 1)")
tabs.append(session)
currentIndex = tabs.count - 1
return session
}
func removeTab(at index: Int) {
guard index < tabs.count else { return }
tabs[index].cleanup()
tabs.remove(at: index)
if currentIndex >= tabs.count {
currentIndex = max(0, tabs.count - 1)
}
}
func selectTab(at index: Int) {
guard index < tabs.count else { return }
currentIndex = index
}
func getCurrentSession() -> TerminalSession? {
guard currentIndex < tabs.count else { return nil }
return tabs[currentIndex]
}
}