#include "plugin.hpp"

#include <MyGUI_LogManager.h>
#include <MyGUI_FactoryManager.h>
#include <MyGUI_ScrollBar.h>
#include <MyGUI_Gui.h>
#include <MyGUI_Window.h>

#include <components/bsa/resources.hpp>
#include <components/files/configurationmanager.hpp>
#include <components/fontloader/fontloader.hpp>

#include <components/widgets/imagebutton.hpp>
#include <components/widgets/box.hpp>

#include <OgreTextureManager.h>
#include <OgreHardwarePixelBuffer.h>

namespace MyGUIPlugin
{

    // Dummy - obsolete when using MyGUI git, because the ScrollBar there has autorepeat support added.
    class MWScrollBar : public MyGUI::ScrollBar
    {
        MYGUI_RTTI_DERIVED(MWScrollBar)
    };

    const std::string& ResourcePlugin::getName() const
    {
        static const std::string name = "OpenMW resource plugin";
        return name;
    }

    void ResourcePlugin::install()
    {

    }
    void ResourcePlugin::uninstall()
    {

    }

    void ResourcePlugin::registerResources()
    {
        boost::program_options::variables_map variables;

        boost::program_options::options_description desc("Allowed options");
        desc.add_options()
        ("data", boost::program_options::value<Files::PathContainer>()->default_value(Files::PathContainer(), "data")->multitoken()->composing())
        ("data-local", boost::program_options::value<std::string>()->default_value(""))
        ("fs-strict", boost::program_options::value<bool>()->implicit_value(true)->default_value(false))
        ("fallback-archive", boost::program_options::value<std::vector<std::string> >()->
            default_value(std::vector<std::string>(), "fallback-archive")->multitoken())
        ("encoding", boost::program_options::value<std::string>()->default_value("win1252"));

        boost::program_options::notify(variables);

        Files::ConfigurationManager cfgManager;
        cfgManager.readConfiguration(variables, desc);

        std::vector<std::string> archives = variables["fallback-archive"].as<std::vector<std::string> >();
        bool fsStrict = variables["fs-strict"].as<bool>();

        Files::PathContainer dataDirs, dataLocal;
        if (!variables["data"].empty()) {
            dataDirs = Files::PathContainer(variables["data"].as<Files::PathContainer>());
        }

        std::string local = variables["data-local"].as<std::string>();
        if (!local.empty()) {
            dataLocal.push_back(Files::PathContainer::value_type(local));
        }

        cfgManager.processPaths (dataDirs);
        cfgManager.processPaths (dataLocal, true);

        if (!dataLocal.empty())
            dataDirs.insert (dataDirs.end(), dataLocal.begin(), dataLocal.end());

        Files::Collections collections (dataDirs, !fsStrict);

        Bsa::registerResources(collections, archives, true, fsStrict);

        std::string encoding(variables["encoding"].as<std::string>());
        std::cout << ToUTF8::encodingUsingMessage(encoding) << std::endl;

        Gui::FontLoader loader(ToUTF8::calculateEncoding(encoding));
        loader.loadAllFonts(false);
    }

    void ResourcePlugin::registerWidgets()
    {
        MyGUI::FactoryManager::getInstance().registerFactory<MWScrollBar>("Widget");

        MyGUI::FactoryManager::getInstance().registerFactory<Gui::ImageButton>("Widget");
        MyGUI::FactoryManager::getInstance().registerFactory<Gui::HBox>("Widget");
        MyGUI::FactoryManager::getInstance().registerFactory<Gui::VBox>("Widget");
        MyGUI::FactoryManager::getInstance().registerFactory<Gui::AutoSizedTextBox>("Widget");
        MyGUI::FactoryManager::getInstance().registerFactory<Gui::AutoSizedEditBox>("Widget");
        MyGUI::FactoryManager::getInstance().registerFactory<Gui::AutoSizedButton>("Widget");
    }

    void ResourcePlugin::createTransparentBGTexture()
    {
        // This texture is manually created in OpenMW to be able to change its opacity at runtime in the options menu
        Ogre::TexturePtr tex = Ogre::TextureManager::getSingleton().createManual(
                        "transparent.png",
                        Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
                        Ogre::TEX_TYPE_2D,
                        1, 1,
                        0,
                        Ogre::PF_A8R8G8B8,
                        Ogre::TU_WRITE_ONLY);
        std::vector<Ogre::uint32> buffer;
        buffer.resize(1);
        const float val = 0.7;
        buffer[0] = (int(255*val) << 24) | (255 << 16) | (255 << 8) | 255;
        memcpy(tex->getBuffer()->lock(Ogre::HardwareBuffer::HBL_DISCARD), &buffer[0], 1*4);
        tex->getBuffer()->unlock();
    }

    void ResourcePlugin::initialize()
    {
        MYGUI_LOGGING("OpenMW_Resource_Plugin", Info, "initialize");

        registerResources();
        registerWidgets();
        createTransparentBGTexture();
    }

    void ResourcePlugin::shutdown()
    {
        /// \todo cleanup

        MYGUI_LOGGING("OpenMW_Resource_Plugin", Info, "shutdown");
    }

}