/*****************************************************************************
 *
 * This file is part of Mapnik (c++ mapping toolkit)
 *
 * Copyright (C) 2021 Artem Pavlenko
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *****************************************************************************/

// mapnik
#include <mapnik/text/placements/list.hpp>
#include <mapnik/xml_node.hpp>

#include <mapnik/warning.hpp>
MAPNIK_DISABLE_WARNING_PUSH
#include <mapnik/warning_ignore.hpp>
#include <boost/property_tree/ptree.hpp>
MAPNIK_DISABLE_WARNING_POP

namespace mapnik {

bool text_placement_info_list::next() const
{
    if (state == 0)
    {
        properties = parent_->defaults;
    }
    else
    {
        if (state > parent_->list_.size())
            return false;
        properties = parent_->list_[state - 1];
    }
    ++state;
    return true;
}

text_symbolizer_properties& text_placements_list::add()
{
    if (list_.size())
    {
        text_symbolizer_properties& last = list_.back();
        list_.push_back(last); // Preinitialize with old values FIXME
    }
    else
    {
        list_.push_back(defaults);
    }
    return list_.back();
}

text_symbolizer_properties& text_placements_list::get(unsigned i)
{
    return list_[i];
}

text_placement_info_ptr
  text_placements_list::get_placement_info(double scale_factor, feature_impl const&, attributes const&) const
{
    return std::make_shared<text_placement_info_list>(this, scale_factor);
}

text_placements_list::text_placements_list()
    : text_placements()
    , list_(0)
{}

void text_placements_list::add_expressions(expression_set& output) const
{
    defaults.add_expressions(output);
    for (auto& prop : list_)
    {
        prop.add_expressions(output);
    }
}

std::size_t text_placements_list::size() const
{
    return list_.size();
}

text_placements_ptr text_placements_list::from_xml(xml_node const& node, fontset_map const& fontsets, bool is_shield)
{
    auto list = std::make_shared<text_placements_list>();
    list->defaults.from_xml(node, fontsets, is_shield);
    for (auto const& child : node)
    {
        if (child.is_text() || !child.is("Placement"))
            continue;
        text_symbolizer_properties& p = list->add();
        p.from_xml(child, fontsets, is_shield);
        // if (strict_ && !p.format.fontset.size())
        //     ensure_font_face(p.format.face_name);
    }
    return list;
}

} // namespace mapnik
