#include "pch.h"
#include "log.h"
#include "node_combobox.h"
#include "node_popup_menu.h"

Node* NodeComboBox::clone_instantiate() const
{
    return new NodeComboBox;
}

void NodeComboBox::clone_copy(Node* dest) const
{
    NodeButton::clone_copy(dest);
    NodeComboBox* n = static_cast<NodeComboBox*>(dest);
    n->m_data = m_data;
    n->m_current_index = m_current_index;
}

void NodeComboBox::loaded()
{
    NodeButton::loaded();
    on_click = [this](Node* target) {
        NodePopupMenu* popup = new NodePopupMenu;
        popup->init();
        popup->create();
        popup->loaded();
        root()->add_child(popup);
        m_items.clear();
        for (int i = 0; i < m_data.size(); i++)
        {
            if (m_data[i] == "-")
            {
                auto n = popup->add_child<NodeBorder>();
                n->SetHeight(5.f);
                n->SetWidthP(100.f);
                n->m_color = {0, 0, 0, 1};
            }
            else
            {
                auto btn = popup->add_child<NodeButton>();
                btn->m_text->set_text(m_data[i].c_str());
                btn->m_border->SetWidthP(100.f);
                btn->m_border->SetHeight(30.f);
                int index = (int)m_items.size();
                m_items.push_back(m_data[i]);
                btn->on_click = [this,popup,btn,index](Node* target) {
                    m_current_index = index;
                    m_selected_child_index = popup->get_child_index(target);
                    m_text->set_text(m_items[index].c_str());
                    popup->mouse_release();
                    popup->destroy();
                    if (on_select)
                        on_select(btn, index);
                };
            }
        }
        float offset = 0;
        for (int i = 0; i <= m_selected_child_index; i++)
            offset += (m_data[i] == "-") ? 5.f : 30.f;
        float height = m_items.size() * 30.f + (m_data.size() - m_items.size()) * 5.f; // add items and separators
        glm::vec2 pos = m_pos + glm::vec2(0, m_size.y - offset);
        auto screen = root()->m_size;
        if ((pos.y + height) > screen.y) pos.y = screen.y - height;
        if (pos.y < 0) pos.y = 0;
        popup->SetPositioning(YGPositionTypeAbsolute);
        popup->SetPosition(pos.x, pos.y);
        popup->SetSize(m_size.x, YGUndefined);
        popup->SetFlexGrow(1.f);
        popup->update();
        root()->update();
        popup->mouse_capture();
        popup->m_mouse_ignore = false;
        popup->m_flood_events = true;
        popup->m_capture_children = false;
    };
}

void NodeComboBox::parse_attributes(kAttribute ka, const tinyxml2::XMLAttribute* attr)
{
    NodeButton::parse_attributes(ka, attr);
    switch (ka)
    {
    case kAttribute::ComboList:
    {
        m_data = split(attr->Value(), ',');
        break;
    }
    case kAttribute::Default:
        m_current_index = attr->IntValue();
        break;
    default:
        break;
    }
}