class Chamomile::TextInput

# File lib/chamomile/components/text_input.rb, line 14
def initialize(prompt: "", placeholder: "", char_limit: 0, width: 0,
               echo_mode: ECHO_NORMAL, echo_char: "*", key_map: DEFAULT_KEY_MAP,
               validate: nil)
  @prompt = prompt
  @placeholder = placeholder
  @char_limit = char_limit
  @width = width
  @echo_mode = echo_mode
  self.echo_char = echo_char
  @key_map = key_map
  @validate = validate
  @value = ""
  @position = 0
  @focused = false
  @offset = 0
  @err = nil
end

# File lib/chamomile/components/text_input.rb, line 39
def blur
  @focused = false
  self
end

# File lib/chamomile/components/text_input.rb, line 48
def echo_char=(c)
  @echo_char = c.to_s[0] || "*"
end

# File lib/chamomile/components/text_input.rb, line 34
def focus
  @focused = true
  self
end

# File lib/chamomile/components/text_input.rb, line 44
def focused?
  @focused
end

# File lib/chamomile/components/text_input.rb, line 69
def handle(msg)
  return unless @focused

  case msg
  when Chamomile::KeyEvent
    handle_key(msg)
  when Chamomile::PasteEvent
    handle_paste(msg)
  end

  nil
end

# File lib/chamomile/components/text_input.rb, line 63
def position=(p)
  @position = p.clamp(0, @value.length)
  recalc_offset
end

# File lib/chamomile/components/text_input.rb, line 54
def value=(v)
  v = v.to_s
  v = v[0, @char_limit] if @char_limit.positive? && v.length > @char_limit
  @value = v
  @position = @position.clamp(0, @value.length)
  run_validate
  recalc_offset
end

# File lib/chamomile/components/text_input.rb, line 85
def view
  return "#{@prompt}#{@placeholder}" if @value.empty? && !@placeholder.empty? && !@focused

  display = build_display_value
  visible = visible_portion(display)

  if @focused
    cursor_pos = @position - @offset
    if cursor_pos >= 0 && cursor_pos < visible.length
      before = visible[0, cursor_pos]
      cursor_char = visible[cursor_pos]
      after = visible[(cursor_pos + 1)..]
      "#{@prompt}#{before}\e[7m#{cursor_char}\e[0m#{after}"
    else
      # Cursor at end
      "#{@prompt}#{visible}\e[7m \e[0m"
    end
  else
    "#{@prompt}#{visible}"
  end
end