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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/render/renderer.hh"
#include <iostream>
namespace ricochet::render {
namespace {
std::string decode_entities( std::string text ) // NOLINT(readability-convert-member-functions-to-static)
{
constexpr std::array<std::pair<std::string_view, std::string_view>, 24> entities
= { { { " ", " " }, { "<", "<" }, { ">", ">" }, { "&", "&" }, { """, "\"" },
{ "©", "©" }, { "®", "®" }, { "™", "™" }, { "€", "€" }, { "£", "£" },
{ "¥", "¥" }, { "¢", "¢" }, { "§", "§" }, { "¶", "¶" }, { "…", "…" },
{ "†", "†" }, { "‡", "‡" }, { "•", "•" }, { "′", "′" }, { "″", "″" },
{ "‹", "‹" }, { "›", "›" }, { "‾", "‾" }, { "⁄", "⁄" } } };
for ( const auto& [entity, replacement] : entities ) {
std::size_t pos = 0;
while ( ( pos = text.find( entity, pos ) ) != std::string::npos ) {
text.replace( pos, entity.length(), replacement );
pos += replacement.length();
}
}
return text;
}
void render_node( const parser::DomNode& node, std::string& output ) // NOLINT(misc-no-recursion)
{
if ( node.tag_name == "head" || node.tag_name == "style" || node.tag_name == "script" || node.tag_name == "meta"
|| node.tag_name == "title" || node.tag_name == "link" ) {
return;
}
if ( node.tag_name.empty() ) {
output += decode_entities( node.text_content );
return;
}
const bool is_header
= ( node.tag_name == "h1" || node.tag_name == "h2" || node.tag_name == "h3" || node.tag_name == "h4" );
if ( is_header ) {
output += "\n\n\033[1;31m";
} else if ( node.tag_name == "a" ) {
std::cout << "\033[4;34m";
} else if ( node.tag_name == "p" || node.tag_name == "div" || is_header ) {
if ( !output.empty() && output.back() != '\n' ) {
output += "\n";
}
}
for ( const auto& child : node.children ) {
render_node( child, output );
}
if ( is_header || node.tag_name == "a" ) {
output += "\033[0m";
}
if ( node.tag_name == "h1" || node.tag_name == "p" || node.tag_name == "div" ) {
output += "\n";
}
}
} // namespace
std::string Renderer::render( // NOLINT(readability-convert-member-functions-to-static)
const parser::DomNode& node ) const
{
std::string output;
render_node( node, output );
return output;
}
} // namespace ricochet::render
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