Class: Clacky::UI2::UIController

Inherits:
Object
  • Object
show all
Includes:
Clacky::UIInterface
Defined in:
lib/clacky/ui2/ui_controller.rb

Overview

UIController is the MVC controller layer that coordinates UI state and user interactions

Constant Summary collapse

CHORE_PHASE_KINDS =

Phases the user never asked for: post-task chores that run after the answer is already on screen. The web UI folds them into a card; a line-oriented terminal has no folding, so their transcript is swallowed and only a one-line progress indicator remains.

%w[memory_update skill_evolution].freeze
CHORE_DIGEST_MAX_FILES =

Caps for the post-chore digest. A chore is background work the user never asked for, so its recap must stay far shorter than the answer.

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CHORE_DIGEST_MAX_TOOLS = 
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CHORE_DIGEST_MAX_ERRORS = 
3

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Clacky::UIInterface

#emit, #show_feedback_request, #show_subagent_end, #show_subagent_start, #with_phase

Constructor Details

#initialize(config = {}) ⇒ UIController

Returns a new instance of UIController.



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# File 'lib/clacky/ui2/ui_controller.rb', line 23

def initialize(config = {})
  @renderer = ViewRenderer.new

  # Set theme if specified
  ThemeManager.set_theme(config[:theme]) if config[:theme]

  # Store configuration
  @config = {
    working_dir: config[:working_dir],
    mode: config[:mode],
    model: config[:model],
    theme: config[:theme]
  }

  # Initialize layout components
  @input_area = Components::InputArea.new
  @todo_area = Components::TodoArea.new
  @welcome_banner = Components::WelcomeBanner.new
  @inline_input = nil  # Created when needed
  @feedback_countdown = nil  # Active auto-approve feedback countdown session
  @layout = LayoutManager.new(
    input_area: @input_area,
    todo_area: @todo_area
  )

  @running = false
  @input_callback = nil
  @interrupt_callback = nil
  @time_machine_callback = nil
  @model_switch_callback = nil
  @tasks_count = 0
  @total_cost = 0.0
  @session_id = nil
  @last_diff_lines = nil

  # ── Progress subsystem (v2: owned handles, stacked) ──────────────
  # Every progress indicator is an owned ProgressHandle. UiController
  # is the "owner" in the handle protocol: it keeps a stack of live
  # handles, only the top of which is rendered. See ProgressHandle
  # for the full protocol and stack semantics.
  @progress_stack = []
  @progress_mutex = Mutex.new
end

Instance Attribute Details

#available_models ⇒ Object

Returns the value of attribute available_models.



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# File 'lib/clacky/ui2/ui_controller.rb', line 21

def available_models
  @available_models
end

#config ⇒ Object

Returns the value of attribute config.



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# File 'lib/clacky/ui2/ui_controller.rb', line 21

def config
  @config
end

#inline_input ⇒ Object (readonly)

Returns the value of attribute inline_input.



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# File 'lib/clacky/ui2/ui_controller.rb', line 20

def inline_input
  @inline_input
end

#input_area ⇒ Object (readonly)

Returns the value of attribute input_area.



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# File 'lib/clacky/ui2/ui_controller.rb', line 20

def input_area
  @input_area
end

#layout ⇒ Object (readonly)

Returns the value of attribute layout.



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# File 'lib/clacky/ui2/ui_controller.rb', line 20

def layout
  @layout
end

#renderer ⇒ Object (readonly)

Returns the value of attribute renderer.



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# File 'lib/clacky/ui2/ui_controller.rb', line 20

def renderer
  @renderer
end

#running ⇒ Object (readonly)

Returns the value of attribute running.



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# File 'lib/clacky/ui2/ui_controller.rb', line 20

def running
  @running
end

Instance Method Details

#append_output(content) ⇒ Object

Append output to the output area.

If a progress indicator is currently active (somewhere in the buffer), rotate it to the tail after the append: business content ends up above, the spinner stays at the bottom. Without this, every subsequent ticker tick on a non-tail progress entry would trigger a full output repaint (visible flicker) and the visual order would have business messages appearing below the spinner.



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# File 'lib/clacky/ui2/ui_controller.rb', line 229

def append_output(content)
  return nil if Thread.current[:clacky_chore_phase]
  return nil if Thread.current[:clacky_concurrent_phase]

  content = prefix_with_phase_label(content)
  @progress_mutex.synchronize do
    top = @progress_stack.last
    if top && top.entry_id
      @layout.remove_entry(top.entry_id)
      top.__detach_entry!
      new_id = @layout.append_output(content)
      progress_id = @layout.append_output(render_for(top))
      top.__rebind_entry!(progress_id)
      new_id
    else
      @layout.append_output(content)
    end
  end
end

#clear_input ⇒ Object

Clear the input area



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# File 'lib/clacky/ui2/ui_controller.rb', line 173

def clear_input
  @input_area.clear
end

#display_session_history(user_messages) ⇒ Object

Display recent user messages when loading session

Parameters:

  • user_messages (Array<String>) —

    Array of recent user message texts



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# File 'lib/clacky/ui2/ui_controller.rb', line 1625

def display_session_history(user_messages)
  theme = ThemeManager.current_theme

  # Show logo banner only
  append_output(@welcome_banner.(width: @layout.screen.width))

  # Show simple header
  append_output(theme.format_text("Recent conversation:", :info))

  # Display each user message with numbering
  user_messages.each_with_index do |msg, index|
    # Truncate long messages
    display_msg = if msg.length > 140
      "#{msg[0..137]}..."
    else
      msg
    end

    # Show with number and indentation
    append_output("  #{index + 1}. #{display_msg}")
  end

  # Bottom spacing and continuation prompt
  append_output("")
  append_output(theme.format_text("Session restored. Feel free to continue with your next task.", :success))
end

#display_welcome_banner ⇒ Object

Display welcome banner with logo and agent info



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# File 'lib/clacky/ui2/ui_controller.rb', line 1600

def display_welcome_banner
  content = @welcome_banner.render_full(
    working_dir: @config[:working_dir],
    mode: @config[:mode],
    width: @layout.screen.width
  )
  append_output(content)

  # Check if API key is configured (show warning AFTER banner)
  check_api_key_configuration
end

#filter_thinking_tags(content) ⇒ String

Filter out thinking tags from content Some models (e.g., MiniMax M2.1) wrap their reasoning in ... tags

Parameters:

  • content (String) —

    Raw content from model

Returns:

  • (String) —

    Content with thinking tags removed



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# File 'lib/clacky/ui2/ui_controller.rb', line 464

def filter_thinking_tags(content)
  return content if content.nil?

  # Remove <think>...</think> blocks (multiline, case-insensitive)
  # Also handles variations like <thinking>...</thinking>
  filtered = content.gsub(%r{<think(?:ing)?>[\s\S]*?</think(?:ing)?>}mi, '')

  # Clean up multiple empty lines left behind (max 2 consecutive newlines)
  filtered.gsub!(/\n{3,}/, "\n\n")

  # Remove leading and trailing whitespace
  filtered.strip
end

#format_tool_call(name, args) ⇒ String

Format tool call for display

Parameters:

  • name (String) —

    Tool name

  • args (String, Hash) —

    Tool arguments

Returns:

  • (String) —

    Formatted call string



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# File 'lib/clacky/ui2/ui_controller.rb', line 1562

def format_tool_call(name, args)
  args_hash = args.is_a?(String) ? JSON.parse(args, symbolize_names: true) : args

  # Try to get tool instance for custom formatting
  tool = get_tool_instance(name)
  if tool
    begin
      return tool.format_call(args_hash)
    rescue StandardError
      # Fallback
    end
  end

  # Simple fallback
  "#{name}(...)"
rescue JSON::ParserError
  "#{name}(...)"
end

#get_tool_instance(tool_name) ⇒ Object?

Get tool instance by name

Parameters:

  • tool_name (String) —

    Tool name

Returns:

  • (Object, nil) —

    Tool instance or nil



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# File 'lib/clacky/ui2/ui_controller.rb', line 1584

def get_tool_instance(tool_name)
  # Convert tool_name to class name (e.g., "file_reader" -> "FileReader")
  class_name = tool_name.split('_').map(&:capitalize).join

  # Try to find the class in Clacky::Tools namespace
  if Clacky::Tools.const_defined?(class_name)
    tool_class = Clacky::Tools.const_get(class_name)
    tool_class.new
  else
    nil
  end
rescue NameError
  nil
end

#handle_inline_input_key(key) ⇒ Object

Handle key input for InlineInput



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# File 'lib/clacky/ui2/ui_controller.rb', line 1762

def handle_inline_input_key(key)
  # Get old line count BEFORE modification
  old_line_count = @inline_input.line_count

  result = @inline_input.handle_key(key)

  case result[:action]
  when :update
    # Update the output area with current input (considering wrapped lines)
    @layout.update_last_line(@inline_input.render, old_line_count)
    # Position cursor for inline input
    @layout.position_inline_input_cursor(@inline_input)
  when :submit, :cancel
    # InlineInput is done, will be cleaned up by request_confirmation after collect returns
    # Don't render anything here - let request_confirmation handle cleanup
    return
  when :toggle_expand
    # If there's command output available, show it; otherwise show diff
    if @stdout_lines && !@stdout_lines.empty?
      show_command_output
    else
      redisplay_diff
    end
  when :toggle_mode
    # Update mode and session bar info, but don't render yet
    current_mode = @config[:mode]
    new_mode = case current_mode.to_s
    when /confirm_safes/
      "auto_approve"
    when /auto_approve/
      "confirm_safes"
    else
      "auto_approve"
    end

    @config[:mode] = new_mode
    @mode_toggle_callback&.call(new_mode)

    # Update session bar data (will be rendered by request_confirmation's render_all)
    @input_area.update_sessionbar(
      session_id: @session_id,
      working_dir: @config[:working_dir],
      mode: @config[:mode],
      model: @config[:model],
      tasks: @tasks_count,
      cost: @total_cost
    )
  end
end

#handle_key(key) ⇒ Object

Handle keyboard input - delegate to InputArea or InlineInput

Parameters:

  • key (Symbol, String, Hash) —

    Key input or rapid input hash



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# File 'lib/clacky/ui2/ui_controller.rb', line 1679

def handle_key(key)
  # If in fullscreen mode, only handle Ctrl+O to exit
  if @layout.fullscreen_mode?
    if key == :ctrl_o
      # Signal the real-time refresh thread to stop gracefully, then join it.
      # Avoid Thread#kill which can interrupt the thread mid-render and
      # leave @render_mutex permanently locked.
      stop_fullscreen_refresh_thread
      @layout.exit_fullscreen
      # Restore main screen content after returning from alternate buffer
      @layout.rerender_all
    end
    return
  end

  # If InlineInput is active, delegate to it
  if @inline_input&.active?
    handle_inline_input_key(key)
    return
  end

  # During an auto-approve feedback countdown the normal input box stays
  # live; the first meaningful keystroke cancels the auto-timeout so the
  # user can finish typing their answer without being rushed.
  if @feedback_countdown && !@feedback_countdown[:intervened] && countdown_intervening_key?(key)
    intervene_feedback_countdown
  end

  result = @input_area.handle_key(key)

  # Handle height change first
  if result[:height_changed]
    @layout.recalculate_layout
  end

  # Handle actions
  case result[:action]
  when :submit
    handle_submit(result[:data])
  when :exit
    stop
    exit(0)
  when :interrupt
    # Stop all active progress indicators (ticker threads + entries).
    # An interrupt may happen at any point in a nested flow (e.g.
    # idle compression during a task); finish the whole stack from
    # top to bottom so nothing is left running.
    interrupt_all_progress

    # Check if input area has content
    input_was_empty = @input_area.empty?

    # Notify CLI to handle interrupt (stop agent or exit)
    @interrupt_callback&.call(input_was_empty: input_was_empty)
  when :clear_output
    # Pass to callback with data for display
    @input_callback&.call("/clear", [], display: result[:data][:display])
  when :scroll_up
    @layout.scroll_output_up
  when :scroll_down
    @layout.scroll_output_down
  when :help
    # Pass to callback with data for display
    @input_callback&.call("/help", [], display: result[:data][:display])
  when :toggle_mode
    toggle_mode
  when :toggle_expand
    # If there's command output available, show it; otherwise show diff
    if @stdout_lines && !@stdout_lines.empty?
      show_command_output
    else
      redisplay_diff
    end
  when :time_machine
    # Trigger time machine callback
    @time_machine_callback&.call
  end

  # Always re-render input area after key handling
  @layout.render_input
end

#initialize_and_show_banner(recent_user_messages: nil) ⇒ Object

Initialize screen and show banner (separate from input loop)

Parameters:

  • recent_user_messages (Array<String>, nil) (defaults to: nil) —

    Recent user messages when loading session



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# File 'lib/clacky/ui2/ui_controller.rb', line 75

def initialize_and_show_banner(recent_user_messages: nil)
  @running = true

  # Set session bar data before initializing screen
  @input_area.update_sessionbar(
    session_id: @session_id,
    working_dir: @config[:working_dir],
    mode: @config[:mode],
    model: @config[:model],
    tasks: @tasks_count,
    cost: @total_cost
  )

  @layout.initialize_screen

  # Display welcome banner or session history
  if recent_user_messages && !recent_user_messages.empty?
    display_session_history(recent_user_messages)
  else
    display_welcome_banner
  end
end

#input_loop ⇒ Object

Main input loop



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# File 'lib/clacky/ui2/ui_controller.rb', line 1653

def input_loop
  @layout.screen.enable_raw_mode

  while @running
    # Process any pending resize events
    @layout.process_pending_resize

    key = @layout.screen.read_key(timeout: 0.1)
    next unless key

    handle_key(key)
  end
rescue Clacky::AgentInterrupted
  # Signal.trap("INT") raised AgentInterrupted on the main thread.
  # Route through the normal Ctrl+C path so on_interrupt callback fires
  # (interrupt task thread if running, or exit if idle) instead of quitting blindly.
  handle_key(:ctrl_c)
rescue => e
  stop
  raise e
ensure
  @layout.screen.disable_raw_mode
end

#interrupt_all_progress ⇒ Object

Finish every active progress handle, top to bottom. Used by the interrupt path (Ctrl+C) so a single keypress guarantees the UI is quiescent regardless of how many nested/background progresses are running.



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# File 'lib/clacky/ui2/ui_controller.rb', line 724

def interrupt_all_progress
  # Snapshot outside the handle's finish() (which also grabs the
  # mutex via unregister_progress) to avoid re-entrant lock issues.
  handles = @progress_mutex.synchronize { @progress_stack.dup }
  # Finish from top (newest) to bottom (oldest) so each top is the
  # one currently rendering when it finishes.
  handles.reverse_each(&:finish)
  # Also drop legacy-shim handle registry so a subsequent
  # show_progress(phase: "done") from unmigrated callers is a no-op.
  @legacy_progress_handles&.clear
end

#log(message, level: :info) ⇒ Object

Log message to output area (use instead of puts)

Parameters:

  • message (String) —

    Message to log

  • level (Symbol) (defaults to: :info) —

    Log level (:debug, :info, :warning, :error)



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# File 'lib/clacky/ui2/ui_controller.rb', line 271

def log(message, level: :info)
  theme = ThemeManager.current_theme

  output = case level
  when :debug
    # Gray dimmed text for debug messages
    theme.format_text("    [DEBUG] #{message}", :thinking)
  when :info
    # Info symbol with normal text
    "#{theme.format_symbol(:info)} #{message}"
  when :warning
    # Warning rendering
    @renderer.render_warning(message)
  when :error
    # Error rendering
    @renderer.render_error(message)
  else
    # Default to info
    "#{theme.format_symbol(:info)} #{message}"
  end

  append_output(output)
end

#on_input(&block) ⇒ Object

Set callback for user input

Parameters:

  • block (Proc) —

    Callback to execute with user input



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# File 'lib/clacky/ui2/ui_controller.rb', line 186

def on_input(&block)
  @input_callback = block
end

#on_interrupt(&block) ⇒ Object

Set callback for interrupt (Ctrl+C)

Parameters:

  • block (Proc) —

    Callback to execute on interrupt



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# File 'lib/clacky/ui2/ui_controller.rb', line 192

def on_interrupt(&block)
  @interrupt_callback = block
end

#on_mode_toggle(&block) ⇒ Object

Set callback for mode toggle (Shift+Tab)

Parameters:

  • block (Proc) —

    Callback to execute on mode toggle



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# File 'lib/clacky/ui2/ui_controller.rb', line 198

def on_mode_toggle(&block)
  @mode_toggle_callback = block
end

#on_model_switch(&block) ⇒ Object

Set callback for model switch (from /model slash command)

Parameters:

  • block (Proc) —

    Callback to execute on model switch



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# File 'lib/clacky/ui2/ui_controller.rb', line 210

def on_model_switch(&block)
  @model_switch_callback = block
end

#on_time_machine(&block) ⇒ Object

Set callback for time machine (ESC key)

Parameters:

  • block (Proc) —

    Callback to execute on time machine



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# File 'lib/clacky/ui2/ui_controller.rb', line 204

def on_time_machine(&block)
  @time_machine_callback = block
end

#phase_end(phase_id, summary: nil) ⇒ Object 



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# File 'lib/clacky/ui2/ui_controller.rb', line 1084

def phase_end(phase_id, summary: nil)
  return if concurrent_phase_end(phase_id, summary: summary)

  Thread.current[:clacky_phase_id] = nil if Thread.current[:clacky_phase_id] == phase_id
  Thread.current[:clacky_phase_label] = nil
  @phase_mutex ||= Mutex.new
  info = @phase_mutex.synchronize { @active_phases&.delete(phase_id) }
  return unless info

  label = info[:label]

  if info[:chore]
    Thread.current[:clacky_chore_phase] = nil
    handle = @chore_progress
    @chore_progress = nil
    @chore_nested = nil
    @chore_steps = 0
    handle&.discard

    digest = chore_digest_lines
    @phase_mutex.synchronize { @chore_digest = nil }

    # No summary and nothing captured means nothing worth reporting
    # happened (the common "no memory updates needed" path) — leave no
    # trace at all.
    has_summary = summary && !summary.to_s.strip.empty?
    return if !has_summary && digest.empty?

    elapsed = (Time.now - info[:started_at]).round
    head = has_summary ? "#{label} — #{summary.to_s.strip} (#{elapsed}s)" : "#{label} (#{elapsed}s)"
    append_output(@renderer.render_system_message(head, prefix_newline: false))
    theme = ThemeManager.current_theme
    digest.each { |line| append_output(theme.format_text("    #{line}", :thinking)) }
    return
  end

  tail = summary && !summary.to_s.strip.empty? ? " — #{summary.to_s.strip}" : ""
  banner = "──────── ▲ #{label} done#{tail} ────────"
  append_output(@renderer.render_system_message(banner, prefix_newline: false))
end

#phase_start(kind:, label:, concurrent: false) ⇒ Object 



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# File 'lib/clacky/ui2/ui_controller.rb', line 1057

def phase_start(kind:, label:, concurrent: false)
  return concurrent_phase_start(kind: kind, label: label) if concurrent && !verbose_phases?

  phase_id = SecureRandom.uuid
  chore = CHORE_PHASE_KINDS.include?(kind.to_s) && !verbose_phases?
  @phase_mutex ||= Mutex.new
  @phase_mutex.synchronize do
    @active_phases ||= {}
    @active_phases[phase_id] = { kind: kind, label: label, started_at: Time.now, chore: chore }
  end
  Thread.current[:clacky_phase_id] = phase_id

  if chore
    # Start the indicator before arming the gate: this handle is the
    # one thing that stays visible during the chore.
    @chore_progress = start_progress(message: label, style: :quiet)
    Thread.current[:clacky_chore_phase] = phase_id
    return phase_id
  end

  banner = "──────── ▼ #{label} ────────"
  append_output(@renderer.render_system_message(banner, prefix_newline: true))
  # Only concurrent phases interleave, so only they need per-line tagging.
  Thread.current[:clacky_phase_label] = concurrent ? label : nil
  phase_id
end

#progress_active? ⇒ Boolean

Returns true if any progress indicator is currently active.

Returns:

  • (Boolean) 


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# File 'lib/clacky/ui2/ui_controller.rb', line 716

def progress_active?
  @progress_mutex.synchronize { !@progress_stack.empty? }
end

#register_progress(handle) ⇒ Object

Called by ProgressHandle#start.



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# File 'lib/clacky/ui2/ui_controller.rb', line 744

def register_progress(handle)
  # Inside a chore phase only the phase's own indicator occupies a line.
  # Nested handles (the subagent's LLM calls and tool runs) get no entry
  # of their own — otherwise each one commits a permanent final frame on
  # finish, since unregister_progress writes straight into the buffer and
  # never passes through append_output's chore gate. Their activity is
  # instead folded into the chore line by +fold_into_chore_line+.
  if Thread.current[:clacky_chore_phase] && @chore_progress
    @progress_mutex.synchronize do
      @chore_nested ||= []
      @chore_nested << handle
      @chore_steps = @chore_steps.to_i + 1 if handle.style == :primary
      fold_into_chore_line(handle)
    end
    return nil
  end

  # Same reasoning inside a concurrent phase: its nested handles own no
  # line, since the shared parallel-progress line is the only thing on
  # screen. Without this, unregister_progress would commit a permanent
  # final frame straight into the buffer, bypassing append_output's gate.
  return nil if Thread.current[:clacky_concurrent_phase]

  @progress_mutex.synchronize do
    prev_top = @progress_stack.last
    if prev_top
      # Plan B: the lower handle loses its OutputBuffer entry until
      # the new top finishes. We remove its on-screen line now and
      # tell it to forget its id; we'll allocate a new id on restore.
      remove_entry(prev_top.entry_id)
      prev_top.__detach_entry!
    end

    @progress_stack.push(handle)
    entry_id = append_output_unlocked(render_for(handle))
    recompute_sessionbar_status
    entry_id
  end
end

#render_frame(handle, frame) ⇒ Object

Called by ProgressHandle's ticker and update. Writes frame into the handle's entry iff it is currently top-of-stack. Non-top handles silently do nothing (their entry was detached in register_progress).



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# File 'lib/clacky/ui2/ui_controller.rb', line 826

def render_frame(handle, frame)
  @progress_mutex.synchronize do
    if @chore_nested&.include?(handle)
      fold_into_chore_line(handle)
      return
    end

    # The chore's own ticker must render the folded view too, otherwise
    # every tick repaints the bare label and the line flickers between
    # "<label>…" and "<label> · <activity>…".
    if @chore_progress && @chore_progress == handle && @chore_nested&.any?
      fold_into_chore_line(@chore_nested.last)
      return
    end

    return unless @progress_stack.last == handle
    return unless handle.entry_id

    has_output = @stdout_lines && !@stdout_lines.empty?
    suffix = has_output ?
      " (Ctrl+C to interrupt · Ctrl+O to view output)" :
      " (Ctrl+C to interrupt)"
    decorated = "#{frame}#{suffix}"

    painted = handle.style == :primary ?
      @renderer.render_working(decorated) :
      @renderer.render_progress(decorated)
    update_entry(handle.entry_id, painted)

    # Re-evaluate sessionbar: a quiet handle that crosses the fast-finish
    # threshold should upgrade the status bar to "working" so long-running
    # tools (terminal running a build, web_fetch) visibly reflect activity.
    recompute_sessionbar_status
  end
end

#request_confirmation(message, default: true) ⇒ Boolean, ...

Request confirmation from user (blocking)

Parameters:

  • message (String) —

    Confirmation prompt

  • default (Boolean) (defaults to: true) —

    Default value if user presses Enter

Returns:

  • (Boolean, String, nil) —

    true/false for yes/no, String for feedback, nil for cancelled



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# File 'lib/clacky/ui2/ui_controller.rb', line 1304

def request_confirmation(message, default: true)
  # Show question in output with theme styling
  theme = ThemeManager.current_theme
  question_symbol = theme.format_symbol(:info)
  append_output("#{question_symbol} #{message}")

  # Pause InputArea
  @input_area.pause
  @layout.recalculate_layout

  # Create InlineInput with styled prompt
  inline_input = Components::InlineInput.new(
    prompt: "Press Enter/y to approve(Shift+Tab for all), 'n' to reject, or type feedback: ",
    default: nil
  )
  @inline_input = inline_input

  # Add inline input line to output (use layout to track position)
  inline_id = @layout.append_output(inline_input.render)
  @layout.position_inline_input_cursor(inline_input)

  result_text = nil
  begin
    # Collect input (blocks until user presses Enter).
    # May raise AgentInterrupted if main thread Thread#raises the
    # worker mid-pop — we MUST still restore input state in ensure.
    result_text = inline_input.collect
  ensure
    # Clean up - remove the inline input lines (handle wrapped lines).
    # Use the tracked id so removal is safe even when more output
    # was appended in between.
    @layout.remove_entry(inline_id) if inline_id

    # Deactivate InlineInput and restore the main InputArea. This
    # MUST run even on exception so the user can type after
    # interrupting a confirmation prompt.
    @inline_input = nil
    @input_area.resume
    @layout.recalculate_layout
    @layout.render_all
  end

  # Append the final response to output (only on normal return)
  if result_text.nil?
    append_output(theme.format_text("  [Cancelled]", :error))
  else
    display_text = result_text.empty? ? (default ? "y" : "n") : result_text
    append_output(theme.format_text("  #{display_text}", :success))
  end

  # Parse result
  return nil if result_text.nil?  # Cancelled

  response = result_text.strip.downcase
  case response
  when "y", "yes" then true
  when "n", "no" then false
  when "" then default
  else
    result_text  # Return feedback text
  end
end

#request_feedback_with_countdown(seconds: 10) ⇒ String, Symbol

Auto-approve countdown for ask_user: show a single live countdown line. If the user presses any key before timeout, collect their answer and return it (intervention). Otherwise return :timeout so the agent auto-decides and continues. Show a live single-line countdown in the output area while keeping the normal input box usable. The agent thread blocks here until either:

* the user submits a message in the regular input box -> returns the text
* the user starts typing (cancels the auto-timeout but keeps waiting)
* the countdown reaches zero with no interaction -> returns :timeout

Parameters:

  • seconds (Integer) (defaults to: 10) —

    Countdown duration

  • seconds (Integer) (defaults to: 10) —

    Countdown duration

Returns:

  • (String, Symbol) —

    feedback string, "" (bare Enter), or :timeout

  • (String, Symbol) —

    feedback text, or :timeout



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# File 'lib/clacky/ui2/ui_controller.rb', line 1380

def request_feedback_with_countdown(seconds: 10)
  theme = ThemeManager.current_theme

  queue = Queue.new
  entry_id = @layout.append_output(countdown_prompt(seconds, theme))

  session = {
    queue: queue,
    entry_id: entry_id,
    intervened: false,
    watchdog: nil
  }
  @feedback_countdown = session

  session[:watchdog] = Clacky::ThreadRegistry.spawn(name: "ui-watchdog") do
    remaining = seconds.to_i
    while remaining.positive?
      break if session[:intervened]

      @layout.replace_entry(entry_id, countdown_prompt(remaining, theme))
      sleep 1
      remaining -= 1
    end
    queue.push(:timeout) unless session[:intervened]
  end

  begin
    result = queue.pop
  ensure
    session[:watchdog].kill if session[:watchdog]&.alive?
    @feedback_countdown = nil
    @layout.remove_entry(entry_id) if entry_id
    @layout.recalculate_layout
    @layout.render_all
  end

  if result == :timeout
    append_output(theme.format_text("  No response — continuing automatically.", :thinking))
  elsif result.to_s.strip.empty?
    append_output(theme.format_text("  → (continue)", :success))
    result = ""
  end

  result
end

#set_agent(agent, agent_profile = nil) ⇒ Object

Set agent for command suggestions

Parameters:

  • agent (Clacky::Agent) —

    The agent instance with skill management

  • agent_profile (Clacky::AgentProfile, nil) (defaults to: nil) —

    Current agent profile for skill filtering



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# File 'lib/clacky/ui2/ui_controller.rb', line 217

def set_agent(agent, agent_profile = nil)
  @input_area.set_agent(agent, agent_profile)
end

#set_idle_status ⇒ Object

Set workspace status to idle (called when agent stops working)



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# File 'lib/clacky/ui2/ui_controller.rb', line 1215

def set_idle_status
  # Safety net: close any legacy progress slots that were opened via
  # show_progress(progress_type: X, phase: "active") but never paired
  # with a corresponding phase: "done" call. Historically the
  # "retrying" slot in LlmCaller was leaked on every successful
  # recovery, leaving the user with a stale "Network failed ... (NNN s)"
  # line ticking forever. LlmCaller now closes its own slot (see the
  # ensure in call_llm), but we mirror that defense here so any
  # future code path that forgets to close a slot still gets cleaned
  # up at the well-defined idle boundary.
  close_leaked_legacy_progress_handles

  update_sessionbar(status: 'idle')
  @last_sessionbar_status = 'idle'
  # Clear user tip when agent stops working
  @input_area.clear_user_tip
  # Hide todo area while idle (data preserved, restored on next work)
  @layout.hide_todos
  @layout.render_input
end

#set_input_tips(message, type: :info) ⇒ Object

Set input tips message

Parameters:

  • message (String) —

    Tip message to display

  • type (Symbol) (defaults to: :info) —

    Tip type (:info, :warning, etc.)



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# File 'lib/clacky/ui2/ui_controller.rb', line 180

def set_input_tips(message, type: :info)
  @input_area.set_tips(message, type: type)
end

#set_skill_loader(skill_loader, agent_profile = nil) ⇒ Object

Set skill loader for command suggestions in the input area

Parameters:



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# File 'lib/clacky/ui2/ui_controller.rb', line 107

def set_skill_loader(skill_loader, agent_profile = nil)
  @input_area.set_skill_loader(skill_loader, agent_profile)
end

#set_working_status ⇒ Object

Set workspace status to working (called when agent starts working)



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# File 'lib/clacky/ui2/ui_controller.rb', line 1253

def set_working_status
  update_sessionbar(status: 'working')
  # Restore todo area if it was hidden during idle
  @layout.show_todos
  # Show a random user tip with 40% probability when agent starts working
  @input_area.show_user_tip(probability: 0.4)
  @layout.render_input
end

#show_assistant_message(content, files:, interim: false, created_at: nil) ⇒ Object

Show assistant message

Parameters:

  • content (String) —

    Message content



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# File 'lib/clacky/ui2/ui_controller.rb', line 451

def show_assistant_message(content, files:, interim: false, created_at: nil)
  # Filter out thinking tags from models like MiniMax M2.1 that use <think>...</think>
  filtered_content = filter_thinking_tags(content)
  return if filtered_content.nil? || filtered_content.strip.empty?

  output = @renderer.render_assistant_message(filtered_content)
  append_output(output)
end

#show_command_output ⇒ Object

Show fullscreen command output view



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# File 'lib/clacky/ui2/ui_controller.rb', line 1527

def show_command_output
  return unless @stdout_lines && !@stdout_lines.empty?
  return if @layout.fullscreen_mode?

  lines = build_command_output_lines
  @layout.enter_fullscreen(lines, hint: "Press Ctrl+O to return · Output updates in real-time")

  # Start background thread to refresh fullscreen content in real-time.
  # Use a dedicated stop flag so we can join() the thread cleanly and
  # avoid Thread#kill interrupting the thread while it holds @render_mutex.
  @fullscreen_refresh_stop = false
  @fullscreen_refresh_thread = Clacky::ThreadRegistry.spawn(name: "ui-fullscreen-refresh") do
    until @fullscreen_refresh_stop || !@layout.fullscreen_mode?
      sleep 0.3
      next if @fullscreen_refresh_stop || !@layout.fullscreen_mode?

      @layout.refresh_fullscreen(build_command_output_lines)
    end
  rescue StandardError
    # Silently handle thread errors
  end
end

#show_complete(iterations:, cost:, duration: nil, cache_stats: nil, awaiting_user_feedback: false, cost_source: nil, task_id: nil) ⇒ Object

Show completion status (only for tasks with more than 5 iterations)

Parameters:

  • iterations (Integer) —

    Number of iterations

  • cost (Float) —

    Cost of this run

  • duration (Float) (defaults to: nil) —

    Duration in seconds

  • cache_stats (Hash) (defaults to: nil) —

    Cache statistics

  • awaiting_user_feedback (Boolean) (defaults to: false) —

    Whether agent is waiting for user feedback



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# File 'lib/clacky/ui2/ui_controller.rb', line 632

def show_complete(iterations:, cost:, duration: nil, cache_stats: nil, awaiting_user_feedback: false, cost_source: nil, task_id: nil)
  # Update status back to 'idle' when task is complete
  update_sessionbar(status: 'idle')

  # Clear user tip when agent stops working
  @input_area.clear_user_tip
  # Hide todo area while idle (data preserved, restored on next work)
  @layout.hide_todos
  @layout.render_input

  # Don't show completion message if awaiting user feedback
  return if awaiting_user_feedback

  # Only show completion message for complex tasks (>5 iterations)
  return if iterations <= 5

  cache_tokens = cache_stats&.dig(:cache_read_input_tokens)
  cache_requests = cache_stats&.dig(:total_requests)
  cache_hits = cache_stats&.dig(:cache_hit_requests)

  output = @renderer.render_task_complete(
    iterations: iterations,
    cost: cost,
    duration: duration,
    cache_tokens: cache_tokens,
    cache_requests: cache_requests,
    cache_hits: cache_hits
  )
  append_output(output)
end

#show_config_modal(current_config, test_callback: nil) ⇒ Hash?

Show configuration modal dialog with multi-model support

Parameters:

Returns:

  • (Hash, nil) —

    Hash with updated config values, or nil if cancelled



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# File 'lib/clacky/ui2/ui_controller.rb', line 1847

public def show_config_modal(current_config, test_callback: nil)
  modal = Components::ModalComponent.new

  loop do
    # Build menu choices
    choices = []

    # Add model list
    current_config.models.each_with_index do |model, idx|
      is_current = (idx == current_config.current_model_index)
      model_name = model["model"] || "unnamed"
      masked_key = mask_api_key(model["api_key"])

      # Add type badge if present
      type_badge = case model["type"]
                  when "default" then "[default] "
                  when "lite" then "[lite] "
                  else ""
                  end

      display_name = "#{type_badge}#{model_name} (#{masked_key})"
      choices << {
        name: display_name,
        value: { action: :switch, model_id: model["id"] }
      }
    end

    # Add action buttons
    choices << { name: "─" * 50, disabled: true }
    choices << { name: "[+] Add New Model", value: { action: :add } }
    if current_config.models.length > 0
      choices << { name: "[*] Edit Current Model", value: { action: :edit } }
      choices << { name: "[-] Delete Model", value: { action: :delete } } if current_config.models.length > 1
    end
    choices << { name: "[X] Close", value: { action: :close } }

    # Show menu
    result = modal.show(
      title: "Model Configuration",
      choices: choices,
      on_close: -> { @layout.rerender_all }
    )

    return nil if result.nil?

    case result[:action]
    when :switch
      # Just signal the caller which model to switch to.
      # All side effects (agent.switch_model_by_id to rebuild the Client,
      # set_default_model_by_id, persistence) are done by the CLI layer
      # in handle_config_command — this keeps show_config_modal a pure
      # UI component and avoids the modal half-mutating config while
      # the agent's @client still points at the old credentials.
      return { action: :switch, model_id: result[:model_id] }
    when :add
      new_model = show_model_edit_form(nil, test_callback: test_callback)
      if new_model
        # Determine anthropic_format based on provider
        # For Anthropic provider, use Anthropic API format
        anthropic_format = new_model[:provider] == "anthropic"

        current_config.add_model(
          model: new_model[:model],
          api_key: new_model[:api_key],
          base_url: new_model[:base_url],
          anthropic_format: anthropic_format
        )
        # Hand off the new model's stable id to the caller. CLI layer
        # decides whether to switch to it / mark default / persist.
        new_id = current_config.models.last["id"]
        return { action: :add, model_id: new_id }
      end
    when :edit
      current_model = current_config.current_model
      edited = show_model_edit_form(current_model, test_callback: test_callback)
      if edited
        # Update current model in place (keep anthropic_format unchanged).
        # Because we mutate the same hash that's in @models, the model's
        # stable id is preserved — the caller will rebuild the agent's
        # Client by calling agent.switch_model_by_id with the same id,
        # which reruns the Bedrock/anthropic/api_key detection.
        current_model["api_key"] = edited[:api_key]
        current_model["model"] = edited[:model]
        current_model["base_url"] = edited[:base_url]
        return { action: :edit, model_id: current_model["id"] }
      end
    when :delete
      if current_config.models.length <= 1
        # Can't delete - show error and continue
        next
      end

      # Delete current model — this clears @current_model_id so the
      # next current_model lookup picks type:default or index fallback.
      current_config.remove_model(current_config.current_model_index)
      # New current model id after deletion (may be nil briefly; resolved
      # on next current_model call, which also re-anchors @current_model_id).
      new_current = current_config.current_model
      return { action: :delete, model_id: new_current && new_current["id"] }
    when :close
      # Just close the modal
      return nil
    end
  end
end

#show_diff(old_content, new_content, max_lines: 50) ⇒ Object

Show diff between old and new content

Parameters:

  • old_content (String) —

    Old content

  • new_content (String) —

    New content

  • max_lines (Integer) (defaults to: 50) —

    Maximum lines to show



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# File 'lib/clacky/ui2/ui_controller.rb', line 1467

def show_diff(old_content, new_content, max_lines: 50)
  require 'diffy'

  diff = Diffy::Diff.new(old_content, new_content, context: 3)
  diff_lines = diff.to_s(:color).lines

  # Store for fullscreen toggle
  @last_diff_lines = diff_lines

  # Show diff without line numbers
  diff_lines.take(max_lines).each do |line|
    append_output(line.chomp)
  end

  if diff_lines.size > max_lines
    append_output("\n... (#{diff_lines.size - max_lines} more lines hidden. Press Ctrl+O to open full diff in pager)")
  end
rescue LoadError
  # Fallback if diffy is not available
  append_output("   Old size: #{old_content.bytesize} bytes")
  append_output("   New size: #{new_content.bytesize} bytes")
  @last_diff_lines = nil
end

#show_error(message, code: nil, top_up_url: nil, raw_message: nil) ⇒ Object

Show error message

Parameters:

  • message (String) —

    Error message



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# File 'lib/clacky/ui2/ui_controller.rb', line 1033

def show_error(message, code: nil, top_up_url: nil, raw_message: nil)
  output = @renderer.render_error(message)
  append_output(output)
end

#show_file_edit_preview(path) ⇒ Object

Show file operation preview (Edit tool)

Parameters:

  • path (String) —

    File path



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# File 'lib/clacky/ui2/ui_controller.rb', line 422

def show_file_edit_preview(path)
  return if chore_capture(:file, path)

  theme = ThemeManager.current_theme
  file_label = theme.format_symbol(:file)
  append_output("\n#{file_label} #{path || '(unknown)'}")
end

#show_file_error(error_message) ⇒ Object

Show file operation error

Parameters:

  • error_message (String) —

    Error message



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# File 'lib/clacky/ui2/ui_controller.rb', line 432

def show_file_error(error_message)
  return if chore_capture(:error, error_message)

  theme = ThemeManager.current_theme
  append_output("   #{theme.format_text("Warning:", :error)} #{error_message}")
end

#show_file_write_preview(path, is_new_file:) ⇒ Object

Show file operation preview (Write tool)

Parameters:

  • path (String) —

    File path

  • is_new_file (Boolean) —

    Whether this is a new file



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# File 'lib/clacky/ui2/ui_controller.rb', line 410

def show_file_write_preview(path, is_new_file:)
  return if chore_capture(:file, path)

  theme = ThemeManager.current_theme
  file_label = theme.format_symbol(:file)
  status = is_new_file ? theme.format_text("Creating new file", :success) : theme.format_text("Modifying existing file", :warning)
  append_output("\n#{file_label} #{path || '(unknown)'}")
  append_output(status)
end

#show_goal_status(goal) ⇒ Object 



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# File 'lib/clacky/ui2/ui_controller.rb', line 135

def show_goal_status(goal)
  @input_area.set_goal(goal)
  @layout.render_input
end

#show_help ⇒ Object

Show help text



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# File 'lib/clacky/ui2/ui_controller.rb', line 1263

def show_help
  theme = ThemeManager.current_theme

  # Separator line
  separator = theme.format_text("─" * 60, :info)

  lines = [
    separator,
    "",
    theme.format_text("Commands:", :info),
    "  #{theme.format_text("/model", :success)}       - Quickly switch the current model",
    "  #{theme.format_text("/config", :success)}      - Configure models, API keys, settings",
    "  #{theme.format_text("/goal", :success)}        - Set a standing goal for autonomous work",
    "    #{theme.format_text("/goal <text>", :dim)}       Set a goal and start working toward it",
    "    #{theme.format_text("/goal status", :dim)}       Show current goal and turn budget",
    "    #{theme.format_text("/goal pause", :dim)}       Pause the goal loop (keeps progress)",
    "    #{theme.format_text("/goal resume", :dim)}      Resume a paused goal",
    "    #{theme.format_text("/goal clear", :dim)}       Clear the goal entirely",
    "    #{theme.format_text("/goal --turns N <text>", :dim)}  Set goal with custom turn budget (default 20)",
    "  #{theme.format_text("/clear", :success)}       - Clear output and restart session",
    "  #{theme.format_text("/exit", :success)}        - Exit application",
    "",
    theme.format_text("Input:", :info),
    "  #{theme.format_text("Shift+Enter", :success)}  - New line",
    "  #{theme.format_text("Up/Down", :success)}      - History navigation",
    "  #{theme.format_text("Ctrl+V", :success)}       - Paste image (Ctrl+D to delete, max 3)",
    "  #{theme.format_text("Ctrl+C", :success)}       - Clear input (press 2x to exit)",
    "",
    theme.format_text("Other:", :info),
    "  Supports Emacs-style shortcuts (Ctrl+A, Ctrl+E, etc.)",
    "",
    separator
  ]

  lines.each { |line| append_output(line) }
end

#show_info(message, prefix_newline: true) ⇒ Object

Show info message

Parameters:

  • message (String) —

    Info message

  • prefix_newline (Boolean) (defaults to: true) —

    Whether to add newline before message (default: true)



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# File 'lib/clacky/ui2/ui_controller.rb', line 1019

def show_info(message, prefix_newline: true)
  output = @renderer.render_system_message(message, prefix_newline: prefix_newline)
  append_output(output)
end

#show_model_switch_modal(current_config, submodels_for) ⇒ Hash?

Quick model switcher — lists configured model cards and returns the picked card's stable id. Unlike show_config_modal this never mutates config; it's a pure picker. All side effects live in the CLI layer. Two-level drawer picker for /model.

Level 1 (card list): Enter selects a card and uses its default model (clearing any sub-model overlay); → opens that card's sub-model drawer (only for cards whose provider exposes >= 2 sub-models, marked "›").

Level 2 (sub-model list): Enter pins the chosen sub-model (or Default); ← / Esc returns to the card list.

Parameters:

  • current_config (AgentConfig)
  • submodels_for (Proc) —

    called with a card hash, returns its provider sub-model names (or [] if none / single).

Returns:

  • (Hash, nil) —

    { model_id: } or nil if cancelled / no models

  • (Hash, nil) —

    { model_id:, model_name: } where model_name is the chosen sub-model (nil = the card's own default), or nil if cancelled.



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# File 'lib/clacky/ui2/ui_controller.rb', line 1971

public def show_model_switch_modal(current_config, submodels_for)
  return nil if current_config.models.empty?

  on_close = -> { @layout.rerender_all }

  loop do
    card = show_model_card_level(current_config, submodels_for, on_close)
    return nil if card.nil?

    # Plain card pick (Enter): use the card default, clear overlay.
    return { model_id: card[:model_id], model_name: nil } unless card[:expand]

    # → opened the drawer: let the user pick a sub-model for this card.
    model = current_config.models.find { |m| m["id"] == card[:model_id] }
    drawer = {
      model_id: card[:model_id],
      card_model: card[:card_model],
      submodels: submodels_for.call(model) || [],
      current_overlay: current_config.session_model_overlay_name
    }
    sub = show_model_submodel_level(drawer, on_close)
    next if sub == :back  # ← / Esc: back to the card list

    return { model_id: card[:model_id], model_name: sub }
  end
end

#show_progress(message = nil, prefix_newline: true, progress_type: "thinking", phase: "active", metadata: {}) ⇒ Object

Legacy shim: show_progress(message, phase:, progress_type:, ...)

This method preserves the pre-refactor API so existing call sites (Agent#run, Agent#think, LlmCaller retry, trigger_idle_compression, MemoryUpdater) keep working until they're migrated to the owned- handle API.

Each progress_type owns its own handle slot so two concurrent background flows (e.g. idle compression + thinking) can coexist without stomping on each other — exactly the race that caused the yellow/gray flicker bug.



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# File 'lib/clacky/ui2/ui_controller.rb', line 946

def show_progress(message = nil, prefix_newline: true, progress_type: "thinking", phase: "active", metadata: {})
  _ = prefix_newline # ignored in v2; layout is not the caller's concern

  type = progress_type.to_s
  style = %w[retrying idle_compress].include?(type) ? :quiet : :primary

  @legacy_progress_handles ||= {}

  if phase.to_s == "done"
    handle = @legacy_progress_handles[type]
    handle&.finish(final_message: message)
    @legacy_progress_handles.delete(type)
    return
  end

  # "active" phase — start a new handle or update the existing one.
  existing = @legacy_progress_handles[type]
  if existing&.running?
    # Bare re-entry: no new info → just leave the existing spinner alone.
    # This preserves the long-standing "Agent#run and Agent#think both
    # call show_progress for fast feedback" idiom.
    return if message.nil? && metadata.empty?

    attempt = metadata[:attempt]
    total   = metadata[:total]
    suffix  = (attempt && total) ? " (#{attempt}/#{total})" : ""
    existing.update(message: "#{message || existing.message}#{suffix}", metadata: metadata)
    return
  end

  attempt = metadata[:attempt]
  total   = metadata[:total]
  suffix  = (attempt && total) ? " (#{attempt}/#{total})" : ""
  display = ((message && !message.to_s.strip.empty?) ? message.to_s : Clacky::THINKING_VERBS.sample) + suffix

  @legacy_progress_handles[type] = start_progress(message: display, style: style)
end

#show_shell_preview(command) ⇒ Object

Show shell command preview

Parameters:

  • command (String) —

    Shell command



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# File 'lib/clacky/ui2/ui_controller.rb', line 441

def show_shell_preview(command)
  theme = ThemeManager.current_theme
  cmd_label = theme.format_symbol(:command)
  append_output("\n#{cmd_label} #{command}")
end

#show_success(message) ⇒ Object

Show success message

Parameters:

  • message (String) —

    Success message



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# File 'lib/clacky/ui2/ui_controller.rb', line 1040

def show_success(message)
  output = @renderer.render_success(message)
  append_output(output)
end

#show_time_machine_menu(history) ⇒ Integer?

Show time machine menu for task undo/redo

Parameters:

  • history (Array<Hash>) —

    Task history with format: [summary, status, has_branches]

Returns:

  • (Integer, nil) —

    Selected task ID or nil if cancelled



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# File 'lib/clacky/ui2/ui_controller.rb', line 2073

public def show_time_machine_menu(history)
  modal = Components::ModalComponent.new

  active_index = nil

  # Build menu choices from history
  choices = history.each_with_index.map do |task, idx|
    # Status marker. The cursor itself draws a "→", so use distinct
    # glyphs here to avoid visual collision:
    #   ● current   · on-path history   ✗ undone/abandoned branch
    marker = case task[:status]
    when :current
      active_index = idx
      "● "
    when :undone
      "✗ "
    else
      "· "
    end

    # Branch indicator
    marker += "⎇ " if task[:has_branches]

    # Truncate summary to fit on screen
    max_summary_length = 60
    summary = task[:summary]
    if summary.length > max_summary_length
      summary = summary[0...max_summary_length] + "..."
    end

    label = "#{marker}Task #{task[:task_id]}: #{summary}"
    label += "  (undone)" if task[:status] == :undone

    {
      name: label,
      value: task[:task_id],
      dim: task[:status] == :undone
    }
  end

  # Show modal, landing the cursor on the currently-active task.
  result = modal.show(
    title: "Time Machine - Select Task to Navigate",
    choices: choices,
    initial_index: active_index,
    on_close: -> { @layout.rerender_all }
  )

  result # Return selected task_id or nil
end

#show_token_usage(token_data) ⇒ Object

Display token usage statistics

Parameters:

  • token_data (Hash) —

    Token usage data containing:

    • delta_tokens: token delta from previous iteration
    • prompt_tokens: input tokens
    • completion_tokens: output tokens
    • total_tokens: total tokens
    • cache_write: cache write tokens
    • cache_read: cache read tokens
    • cost: cost for this iteration


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# File 'lib/clacky/ui2/ui_controller.rb', line 325

def show_token_usage(token_data)
  theme = ThemeManager.current_theme
  pastel = Pastel.new

  token_info = []

  # Delta tokens with color coding (green/yellow/red + dim)
  delta_tokens = token_data[:delta_tokens]
  delta_str = delta_tokens.negative? ? "#{delta_tokens}" : "+#{delta_tokens}"
  color_style = if delta_tokens > 10000
    :red
  elsif delta_tokens > 5000
    :yellow
  else
    :green
  end
  colored_delta = if delta_tokens.negative?
    pastel.cyan(delta_str)
  else
    pastel.decorate(delta_str, color_style, :dim)
  end
  token_info << colored_delta

  # Cache status indicator (using theme)
  cache_write = token_data[:cache_write]
  cache_read = token_data[:cache_read]
  cache_used = cache_read > 0 || cache_write > 0
  if cache_used
    token_info << pastel.dim(theme.symbol(:cached))
  end

  # Input tokens (with cache breakdown if available)
  prompt_tokens = token_data[:prompt_tokens]
  if cache_write > 0 || cache_read > 0
    input_detail = "#{prompt_tokens} (cache: #{cache_read} read, #{cache_write} write)"
    token_info << pastel.dim("Input: #{input_detail}")
  else
    token_info << pastel.dim("Input: #{prompt_tokens}")
  end

  # Output tokens
  token_info << pastel.dim("Output: #{token_data[:completion_tokens]}")

  # Total
  token_info << pastel.dim("Total: #{token_data[:total_tokens]}")

  # Cost for this iteration with color coding (red/yellow for high cost, dim for normal)
  # :api    => "$0.001234"      (exact, from API)
  # :price  => "~$0.001234"     (estimated from pricing table)
  # :default => "N/A"           (model not in pricing table, unknown cost)
  cost_source = token_data[:cost_source]
  if cost_source == :default
    token_info << pastel.dim("Cost: N/A")
  elsif token_data[:cost]
    cost = token_data[:cost]
    cost_value = cost_source == :price ? "~$#{cost.round(6)}" : "$#{cost.round(6)}"
    if cost >= 0.1
      # High cost - red warning
      colored_cost = pastel.decorate(cost_value, :red, :dim)
      token_info << pastel.dim("Cost: ") + colored_cost
    elsif cost >= 0.05
      # Medium cost - yellow warning
      colored_cost = pastel.decorate(cost_value, :yellow, :dim)
      token_info << pastel.dim("Cost: ") + colored_cost
    else
      # Low cost - normal gray
      token_info << pastel.dim("Cost: #{cost_value}")
    end
  end

  # Display through output system (already all dimmed, just add prefix)
  token_display = pastel.dim("    [Tokens] ") + token_info.join(pastel.dim(' | '))
  append_output(token_display)
end

#show_tool_args(formatted_args) ⇒ Object

Show tool call arguments

Parameters:

  • formatted_args (String) —

    Formatted arguments string



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# File 'lib/clacky/ui2/ui_controller.rb', line 402

def show_tool_args(formatted_args)
  theme = ThemeManager.current_theme
  append_output("\n#{theme.format_text("Args: #{formatted_args}", :thinking)}")
end

#show_tool_call(name, args) ⇒ Object

Show tool call

Parameters:

  • name (String) —

    Tool name

  • args (String, Hash) —

    Tool arguments (JSON string or Hash)



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# File 'lib/clacky/ui2/ui_controller.rb', line 538

def show_tool_call(name, args)
  return if chore_capture(:tool, name)

  # Reset stdout buffer on each new tool call so previous command output
  # doesn't bleed into the next one, and so the buffer is ready before
  # on_output starts firing (which can happen before show_progress is called).
  @stdout_lines = nil
  @stdout_partial_tail = false

  # Special handling for ask_user: render as a readable interactive card
  # with the full questions and options, rather than the truncated format_call summary.
  if Clacky::Tools::AskUser.feedback_tool?(name)
    args_data = args.is_a?(String) ? (JSON.parse(args, symbolize_names: true) rescue {}) : args
    questions = Clacky::Tools::AskUser.normalize_questions(args_data)
    context   = Clacky::Tools::AskUser.fetch_key(args_data, :context).to_s.strip

    parts = []
    parts << context unless context.empty?

    multiple = questions.size > 1
    questions.each_with_index do |q, q_index|
      parts << "" unless parts.empty?
      parts << (multiple ? "#{q_index + 1}. #{q[:question]}" : q[:question])
      parts << q[:description] unless q[:description].empty?

      next if q[:options].empty?

      q[:options].each_with_index do |opt, i|
        marker = q[:recommended] == i ? "  ← recommended" : ""
        parts << "  #{i + 1}. #{opt}#{marker}"
      end
      parts << "  #{q[:options].size + 1}. Other — type your own answer" if q[:allow_free_text]
    end

    card_text = parts.join("\n")
    output = @renderer.render_system_message(card_text, prefix_newline: true)
    append_output(output)
    return
  end

  formatted_call = format_tool_call(name, args)
  output = @renderer.render_tool_call(tool_name: name, formatted_call: formatted_call)
  append_output(output)
end

#show_tool_error(error) ⇒ Object

Show tool error

Parameters:

  • error (String, Exception) —

    Error message or exception



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# File 'lib/clacky/ui2/ui_controller.rb', line 592

def show_tool_error(error)
  error_msg = error.is_a?(Exception) ? error.message : error.to_s
  return if chore_capture(:error, error_msg)

  output = @renderer.render_tool_error(error: error_msg)
  append_output(output)
end

#show_tool_result(result) ⇒ Object

Show tool result

Parameters:

  • result (String) —

    Formatted tool result



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# File 'lib/clacky/ui2/ui_controller.rb', line 585

def show_tool_result(result)
  output = @renderer.render_tool_result(result: result)
  append_output(output)
end

#show_tool_stdout(lines) ⇒ Object

Receive a chunk of shell stdout from the on_output callback. Lines are buffered into @stdout_lines so that Ctrl+O can open a fullscreen live view, matching the original output_buffer interaction.

Parameters:

  • lines (Array<String>) —

    One or more stdout chunks (may contain embedded newlines or be partial lines)



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# File 'lib/clacky/ui2/ui_controller.rb', line 605

def show_tool_stdout(lines)
  return if lines.nil? || lines.empty?
  @stdout_lines ||= []
  # Chunks may carry multiple newlines or trailing partial lines.
  # Re-split on \n so the fullscreen view renders one logical line per row.
  lines.each do |chunk|
    next if chunk.nil? || chunk.empty?
    chunk.to_s.split("\n", -1).each_with_index do |part, idx|
      if idx == 0 && !@stdout_lines.empty? && @stdout_partial_tail
        @stdout_lines[-1] = @stdout_lines[-1] + part
      else
        @stdout_lines << part
      end
    end
    # Track whether the chunk ended on a partial line (no trailing \n)
    # so the next chunk's first segment appends to it instead of
    # starting a new row.
    @stdout_partial_tail = !chunk.to_s.end_with?("\n")
  end
end

#show_warning(message) ⇒ Object

Show warning message

Parameters:

  • message (String) —

    Warning message



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# File 'lib/clacky/ui2/ui_controller.rb', line 1026

def show_warning(message)
  output = @renderer.render_warning(message)
  append_output(output)
end

#start ⇒ Object

Start the UI controller



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# File 'lib/clacky/ui2/ui_controller.rb', line 68

def start
  initialize_and_show_banner
  start_input_loop
end

#start_input_loop ⇒ Object

Start input loop (separate from initialization)



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# File 'lib/clacky/ui2/ui_controller.rb', line 99

def start_input_loop
  @running = true
  input_loop
end

#start_progress(message: nil, style: :primary, quiet_on_fast_finish: false) ⇒ Clacky::UI2::ProgressHandle

Start a new progress indicator and return its owned handle.

Parameters:

  • message (String) (defaults to: nil) —

    Initial progress message.

  • style (Symbol) (defaults to: :primary) —

    :primary (foreground, yellow, bumps sessionbar) or :quiet (background, gray, no sessionbar change).

  • quiet_on_fast_finish (Boolean) (defaults to: false) —

    See ProgressHandle — when true, a finish that elapses under FAST_FINISH_THRESHOLD_SECONDS removes the entry instead of leaving a permanent final frame. Preferred for tool-execution wrappers.

Returns:



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# File 'lib/clacky/ui2/ui_controller.rb', line 687

def start_progress(message: nil, style: :primary, quiet_on_fast_finish: false)
  display = (message.nil? || message.to_s.strip.empty?) ? Clacky::THINKING_VERBS.sample : message.to_s
  ProgressHandle.new(
    owner: self,
    message: display,
    style: style,
    quiet_on_fast_finish: quiet_on_fast_finish
  ).start
end

#stop(clear_screen: false) ⇒ Object

Stop the UI controller. Keeps the screen by default so any final output (e.g. the "clacky -a " resume hint) survives in scrollback.



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# File 'lib/clacky/ui2/ui_controller.rb', line 167

def stop(clear_screen: false)
  @running = false
  @layout.cleanup_screen(clear_screen: clear_screen)
end

#stop_fullscreen_refresh_thread ⇒ Object

Stop the fullscreen refresh thread gracefully via flag + join.



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# File 'lib/clacky/ui2/ui_controller.rb', line 1006

def stop_fullscreen_refresh_thread
  @fullscreen_refresh_stop = true
  if @fullscreen_refresh_thread&.alive?
    joined = @fullscreen_refresh_thread.join(1.0)
    @fullscreen_refresh_thread.kill unless joined
  end
  @fullscreen_refresh_thread = nil
  @fullscreen_refresh_stop = false
end

#stream_thinking_progress(input_tokens:, output_tokens:) ⇒ Object

Stream-only update for the live thinking progress. Unlike show_progress(progress_type: "thinking", phase: "active"), this NEVER creates a new handle — if no thinking handle is currently alive (e.g. we're inside an idle-compression call_llm where only the quiet "Compressing..." handle is on the stack), the streamed token counts are silently dropped instead of spawning a primary spinner that would push the compression progress off-screen.



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# File 'lib/clacky/ui2/ui_controller.rb', line 991

def stream_thinking_progress(input_tokens:, output_tokens:)
  @legacy_progress_handles ||= {}
  existing = @legacy_progress_handles["thinking"]
  return unless existing&.running?
  existing.update(metadata: { input_tokens: input_tokens, output_tokens: output_tokens })
end

#toggle_mode ⇒ Object

Toggle permission mode between confirm_safes and auto_approve



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# File 'lib/clacky/ui2/ui_controller.rb', line 146

def toggle_mode
  current_mode = @config[:mode]
  new_mode = case current_mode.to_s
  when /confirm_safes/
    "auto_approve"
  when /auto_approve/
    "confirm_safes"
  else
    "auto_approve"  # Default to auto_approve if unknown mode
  end

  @config[:mode] = new_mode

  # Notify CLI to update agent_config
  @mode_toggle_callback&.call(new_mode)

  update_sessionbar
end

#unregister_progress(handle, final_frame:) ⇒ Object

Called by ProgressHandle#finish.



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# File 'lib/clacky/ui2/ui_controller.rb', line 785

def unregister_progress(handle, final_frame:)
  @progress_mutex.synchronize do
    if @chore_nested&.delete(handle)
      # Folded handles own no entry; hand the chore line back to
      # whatever is still running underneath (or the bare label).
      fold_into_chore_line(@chore_nested.last)
      next
    end

    # A handle that was never stacked owns nothing here: restoring
    # "the new top" would duplicate what is legitimately on screen.
    next unless @progress_stack.include?(handle)

    if handle.entry_id
      if final_frame && !final_frame.to_s.strip.empty?
        update_entry(handle.entry_id, @renderer.render_progress(final_frame))
      else
        remove_entry(handle.entry_id)
      end
    end

    @progress_stack.delete(handle)

    # Restore the new top, if any: allocate a fresh entry and let it
    # resume rendering from where it left off.
    if (restored = @progress_stack.last)
      new_id = append_output_unlocked(render_for(restored))
      restored.__reattach_entry!(new_id)
    end

    # Recompute sessionbar status from whatever remains on the stack.
    # This handles: (a) empty stack → idle, (b) mixed stack (e.g. a
    # long-running quiet tool still active underneath) → working.
    recompute_sessionbar_status
  end
end

#update_permission_mode(mode) ⇒ Object 



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# File 'lib/clacky/ui2/ui_controller.rb', line 140

def update_permission_mode(mode)
  @config[:mode] = mode.to_s
  update_sessionbar
end

#update_sessionbar(tasks: nil, cost: nil, cost_source: nil, status: nil, latency: nil, session_id: nil) ⇒ Object

Update session bar with current stats

Parameters:

  • tasks (Integer) (defaults to: nil) —

    Number of completed tasks (optional)

  • cost (Float) (defaults to: nil) —

    Total cost (optional)

  • cost_source (Symbol, nil) (defaults to: nil) —

    :api / :price / :default (optional)

  • status (String) (defaults to: nil) —

    Workspace status ('idle' or 'working') (optional)

  • latency (Hash, nil) (defaults to: nil) —

    Latency metrics; accepted but not displayed in the TUI.

  • session_id (String, nil) (defaults to: nil) —

    Full session id; rendered as first 8 chars (parity with WebUI).



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# File 'lib/clacky/ui2/ui_controller.rb', line 118

def update_sessionbar(tasks: nil, cost: nil, cost_source: nil, status: nil, latency: nil, session_id: nil)
  @tasks_count = tasks if tasks
  @total_cost = cost if cost
  @session_id = session_id if session_id
  @input_area.update_sessionbar(
    session_id: @session_id,
    working_dir: @config[:working_dir],
    mode: @config[:mode],
    model: @config[:model],
    tasks: @tasks_count,
    cost: @total_cost,
    cost_source: cost_source,
    status: status
  )
  @layout.render_input
end

#update_todos(todos) ⇒ Object

Update todos display

Parameters:

  • todos (Array<Hash>) —

    Array of todo items



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# File 'lib/clacky/ui2/ui_controller.rb', line 312

def update_todos(todos)
  @layout.update_todos(todos)
end

#with_progress(message: nil, style: :primary, quiet_on_fast_finish: false) {|handle| ... } ⇒ Object

Run the given block with a progress indicator active. The handle is always finished in an ensure block, so exceptions (including Thread#raise) cannot leave the ticker or entry orphaned.

Yield Parameters:



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# File 'lib/clacky/ui2/ui_controller.rb', line 702

def with_progress(message: nil, style: :primary, quiet_on_fast_finish: false)
  handle = start_progress(
    message: message,
    style: style,
    quiet_on_fast_finish: quiet_on_fast_finish
  )
  begin
    yield handle
  ensure
    handle.finish
  end
end