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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/>.
*/
#include "ricochet/core/link_hints.hh"
#include "ricochet/core/ui_view.hh"
#include "ricochet/core/utils.hh"
#include <iostream>
namespace ricochet::core {
std::string index_to_hint( std::size_t index )
{
const std::string alphabet = "asdfghjklqwertyuiopzxcvbnm";
std::string hint;
hint += alphabet[( index / alphabet.length() ) % alphabet.length()];
hint += alphabet[index % alphabet.length()];
return hint;
}
void toggle_link_hints( PageData& page_data, bool show )
{
const std::string hl_start = "\033[0;1;35;7m ";
const std::string hl_end = " \033[0m";
std::vector<std::string> formatted_hints;
formatted_hints.reserve( page_data.links.size() );
for ( std::size_t i = 0; i < page_data.links.size(); ++i ) {
std::string h = hl_start;
h += index_to_hint( i );
h += hl_end;
formatted_hints.push_back( std::move( h ) );
}
for ( auto& line : page_data.lines ) {
for ( std::size_t i = 0; i < page_data.links.size(); ++i ) {
const std::string marker = "{L:" + std::to_string( i + 1 ) + "}";
if ( show ) {
const std::size_t pos = line.find( marker );
if ( pos != std::string::npos ) {
line.replace( pos, marker.length(), formatted_hints[i] );
}
} else {
const std::size_t pos = line.find( formatted_hints[i] );
if ( pos != std::string::npos ) {
line.replace( pos, formatted_hints[i].length(), marker );
}
}
}
}
}
void handle_follow_link( const tui::Terminal& terminal,
PageData& page_data,
std::string& current_url,
std::size_t& scroll_y, // NOLINT(bugprone-easily-swappable-parameters)
bool& navigate )
{
toggle_link_hints( page_data, true );
draw_view( terminal, page_data.lines, scroll_y, current_url, page_data.title );
auto [w, h] = terminal.get_size();
terminal.move_cursor( h, 1 );
std::cout << "\x1b[2K\033[1;35;7m Follow Hint (2 keys): \033[0m ";
std::cout.flush();
std::string input;
input += terminal.read_key();
std::cout << input[0];
std::cout.flush();
input += terminal.read_key();
// bool found = false;
for ( std::size_t i = 0; i < page_data.links.size(); ++i ) {
if ( index_to_hint( i ) == input ) {
std::string target = page_data.links[i];
target = normalize_url( target, current_url );
target = strip_ddg_tracker( target );
current_url = target;
navigate = true;
// found = true;
break;
}
}
toggle_link_hints( page_data, false );
}
} // namespace ricochet::core
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