/**
 * Copyright (c) 2018, Timothy Stack
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * * Neither the name of Timothy Stack nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef filter_sub_source_hh
#define filter_sub_source_hh

#include "readline_curses.hh"
#include "textview_curses.hh"
#include "plain_text_source.hh"

class filter_sub_source
    : public text_sub_source, public list_input_delegate {
public:
    using fss_functor_t = readline_curses::action::mem_functor_t<filter_sub_source>;

    filter_sub_source();

    bool list_input_handle_key(listview_curses &lv, int ch) override;

    void list_input_handle_scroll_out(listview_curses &lv) override;

    size_t text_line_count() override;;

    size_t text_line_width(textview_curses &curses) override;

    void
    text_value_for_line(textview_curses &tc, int line, std::string &value_out,
                        line_flags_t flags) override;

    void text_attrs_for_line(textview_curses &tc, int line,
                             string_attrs_t &value_out) override;

    size_t
    text_size_for_line(textview_curses &tc, int line, line_flags_t raw) override;

    void rl_change(readline_curses *rc);

    void rl_perform(readline_curses *rc);

    void rl_abort(readline_curses *rc);

    void rl_display_matches(readline_curses *rc);

    void rl_display_next(readline_curses *rc);

    readline_context filter_context{"filter", nullptr, false};
    readline_curses fss_editor;
    plain_text_source fss_match_source;
    textview_curses fss_match_view;

    bool fss_editing{false};
    fss_functor_t fss_change_wire;
    fss_functor_t fss_perform_wire;
    fss_functor_t fss_abort_wire;
    fss_functor_t fss_display_match_wire;
    fss_functor_t fss_display_next_wire;
    bool fss_filter_state;
};

#endif
