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/*
* Ricochet - A minimalist CLI web browser for fast, distraction-free navigation.
* Copyright (C) 2026 Richard Qin
*
* 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 <https://www.gnu.org/licenses/>.
*/
#pragma once
#include "ricochet/tui/document.hh"
#include "ricochet/tui/session.hh"
#include <chrono>
#include <cstddef>
#include <cstdio>
#include <memory>
#include <optional>
#include <string>
#include <vector>
namespace ricochet::tui::detail {
// Layout supplies one printable spacing character and its combining marks per
// glyph, with a measured width. Raw document text never goes directly to curses.
struct PaintGlyph
{
CellPoint position {};
int width { 1 };
std::wstring text {};
TextStyle style {};
};
struct Frame
{
std::vector<PaintGlyph> glyphs {};
std::optional<CellPoint> cursor {};
};
struct InputBatch
{
std::vector<InputEvent> events {};
bool consumed { false };
};
class Screen
{
public:
Screen( std::FILE& input, std::FILE& output, TerminalOptions options );
~Screen();
Screen( const Screen& ) = delete;
Screen& operator=( const Screen& ) = delete;
ScreenSize size() const;
TerminalCapabilities capabilities() const;
InputBatch read_events( std::size_t limit );
// Wait only polls descriptors; wgetch remains the sole terminal reader.
std::optional<TerminalClosed> wait( int wake_fd, std::chrono::milliseconds max_wait );
void draw( const Frame& frame );
private:
class Impl;
std::unique_ptr<Impl> impl_;
};
} // namespace ricochet::tui::detail
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