defmodule Raxol.Terminal.ANSI.Sequences.Modes do
  @moduledoc """
  ANSI Terminal Modes Sequence Handler.

  Handles parsing and application of ANSI terminal mode sequences,
  including screen modes, input modes, and rendering modes.
  """

  alias Raxol.Terminal.ModeManager
  require Raxol.Core.Runtime.Log

  @doc """
  Set or reset a screen mode.

  ## Parameters

  * `emulator` - The terminal emulator state
  * `mode` - Mode identifier
  * `enabled` - Boolean indicating if mode should be enabled or disabled

  ## Returns

  Updated emulator state
  """
  def set_screen_mode(emulator, mode, enabled) do
    # ModeManager uses integer codes. Assume 'mode' is the integer code.
    # Determine if it's private (starts with '?') or standard
    # NOTE: This function seems to be called with the *integer* mode code.
    # The logic needs clarification on whether it handles standard vs private.
    # Assuming 'mode' is just the integer code for now.
    # Let's find the corresponding mode atom.
    mode_atom =
      ModeManager.lookup_private(mode) || ModeManager.lookup_standard(mode)

    case mode_atom do
      nil ->
        Raxol.Core.Runtime.Log.warning_with_context(
          "[Sequences.Modes] Unknown mode code: #{mode}",
          %{}
        )

        emulator

      _ ->
        case enabled do
          true -> ModeManager.set_mode(emulator, [mode_atom])
          false -> ModeManager.reset_mode(emulator, [mode_atom])
        end
    end
  end

  @doc """
  Enable or disable bracketed paste mode.

  ## Parameters

  * `emulator` - The terminal emulator state
  * `enabled` - Boolean indicating if mode should be enabled or disabled

  ## Returns

  Updated emulator state
  """
  def set_bracketed_paste_mode(emulator, enabled) do
    %{emulator | bracketed_paste_mode: enabled}
  end

  @doc """
  Enable or disable focus reporting.

  ## Parameters

  * `emulator` - The terminal emulator state
  * `enabled` - Boolean indicating if mode should be enabled or disabled

  ## Returns

  Updated emulator state
  """
  def set_focus_reporting(emulator, enabled) do
    %{emulator | focus_reporting: enabled}
  end

  @doc """
  Switch to alternate buffer mode.

  ## Parameters

  * `emulator` - The terminal emulator state
  * `use_alternate` - Boolean indicating if alternate buffer should be used

  ## Returns

  Updated emulator state
  """
  def set_alternate_buffer(emulator, use_alternate) do
    buffer_type =
      case use_alternate do
        true -> :alternate
        false -> :main
      end

    %{emulator | active_buffer_type: buffer_type}
  end

  @doc """
  Sets or resets ANSI modes.
  """
  def handle_mode_sequence(_emulator, _params, _private \\ false) do
    # Implementation...
  end
end
