/* Output generating routines for GDB CLI.
   Copyright (C) 1999-2023 Free Software Foundation, Inc.
   Contributed by Cygnus Solutions.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef CLI_OUT_H
#define CLI_OUT_H

#include "ui-out.h"
#include <chrono>
#include <vector>

class cli_ui_out : public ui_out
{
public:

  explicit cli_ui_out (ui_file *stream, ui_out_flags flags = ui_source_list);
  virtual ~cli_ui_out ();

  ui_file *set_stream (ui_file *stream);

  bool can_emit_style_escape () const override;

protected:

  virtual void do_table_begin (int nbrofcols, int nr_rows,
			       const char *tblid) override;
  virtual void do_table_body () override;
  virtual void do_table_end () override;
  virtual void do_table_header (int width, ui_align align,
				const std::string &col_name,
				const std::string &col_hdr) override;
  /* Note: level 0 is the top-level so LEVEL is always greater than
     zero.  */
  virtual void do_begin (ui_out_type type, const char *id) override;
  virtual void do_end (ui_out_type type) override;
  virtual void do_field_signed (int fldno, int width, ui_align align,
				const char *fldname, LONGEST value) override;
  virtual void do_field_unsigned (int fldno, int width, ui_align align,
				  const char *fldname,
				  ULONGEST value) override;
  virtual void do_field_skip (int fldno, int width, ui_align align,
			      const char *fldname) override;
  virtual void do_field_string (int fldno, int width, ui_align align,
				const char *fldname, const char *string,
				const ui_file_style &style) override;
  virtual void do_field_fmt (int fldno, int width, ui_align align,
			     const char *fldname, const ui_file_style &style,
			     const char *format, va_list args) override
    ATTRIBUTE_PRINTF (7, 0);
  virtual void do_spaces (int numspaces) override;
  virtual void do_text (const char *string) override;
  virtual void do_message (const ui_file_style &style, const char *format,
			   va_list args) override ATTRIBUTE_PRINTF (3, 0);
  virtual void do_wrap_hint (int indent) override;
  virtual void do_flush () override;
  virtual void do_redirect (struct ui_file *outstream) override;

  virtual void do_progress_start () override;
  virtual void do_progress_notify (const std::string &, const char *, double,
				   double) override;
  virtual void do_progress_end () override;

  bool suppress_output () { return m_suppress_output; }

private:

  void field_separator ();

  std::vector<ui_file *> m_streams;
  bool m_suppress_output;

  /* The state of a recent progress update.  */
  struct cli_progress_info
  {
    /* Position of the progress indicator.  */
    int pos;
    /* The current state.  */
    progress_update::state state;
    /* Progress indicator's time of last update.  */
    std::chrono::steady_clock::time_point last_update;

    cli_progress_info ()
      : pos (0),
	state (progress_update::START)
    {
    }
  };

  /* Stack of progress info.  */
  std::vector<cli_progress_info> m_progress_info;
  void clear_current_line ();
};

extern void cli_display_match_list (char **matches, int len, int max);

#endif