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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/search_handler.hh"
namespace ricochet::core {
void find_search_matches( PageData& page_data, const std::string& query )
{
page_data.last_search = query;
page_data.match_lines.clear();
page_data.current_match_idx = 0;
for ( std::size_t i = 0; i < page_data.original_lines.size(); ++i ) {
if ( page_data.original_lines[i].find( query ) != std::string::npos ) {
page_data.match_lines.push_back( i );
}
}
}
void apply_search_highlight( PageData& page_data, const std::string& query )
{
page_data.lines = page_data.original_lines;
if ( page_data.match_lines.empty() ) {
return;
}
const std::string hl_start = "\033[43;30m";
const std::string hl_end = "\033[0m";
for ( const auto match_idx : page_data.match_lines ) {
auto& line = page_data.lines[match_idx];
std::size_t pos = 0;
std::string replacement;
replacement.reserve( hl_start.length() + query.length() + hl_end.length() );
replacement += hl_start;
replacement += query;
replacement += hl_end;
while ( ( pos = line.find( query, pos ) ) != std::string::npos ) {
line.replace( pos, query.length(), replacement );
pos += hl_start.length() + query.length() + hl_end.length();
}
}
}
void execute_search( PageData& page_data, const std::string& query, std::size_t& scroll_y, bool next_match )
{
if ( query.empty() ) {
return;
}
if ( !next_match || query != page_data.last_search ) {
find_search_matches( page_data, query );
apply_search_highlight( page_data, query );
} else if ( !page_data.match_lines.empty() ) {
page_data.current_match_idx = ( page_data.current_match_idx + 1 ) % page_data.match_lines.size();
}
if ( page_data.match_lines.empty() ) {
return;
}
const std::size_t target_line = page_data.match_lines[page_data.current_match_idx];
scroll_y = ( target_line > 5 ) ? ( target_line - 5 ) : 0;
}
} // namespace ricochet::core
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