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#include "cppplugin.h"
#include "cppclasswizard.h"
#include "cppeditor.h"
#include "cppeditoractionhandler.h"
#include "cppeditorconstants.h"
#include "cppeditorenums.h"
#include "cppfilewizard.h"
#include "cpphoverhandler.h"

#include <coreplugin/coreconstants.h>
#include <coreplugin/mimedatabase.h>
#include <coreplugin/uniqueidmanager.h>
#include <coreplugin/fileiconprovider.h>
#include <coreplugin/actionmanager/actionmanagerinterface.h>
#include <coreplugin/actionmanager/icommand.h>
#include <coreplugin/editormanager/editormanager.h>
#include <texteditor/completionsupport.h>
#include <texteditor/fontsettings.h>
#include <texteditor/storagesettings.h>
#include <texteditor/texteditorsettings.h>
#include <cpptools/cpptoolsconstants.h>

#include <QtCore/QFileInfo>
#include <QtCore/QSettings>
#include <QtGui/QMenu>
#include <QtGui/QAction>

static const char *headerSuffixKeyC = "CppEditor/HeaderSuffix";
static const char *sourceSuffixKeyC = "CppEditor/SourceSuffix";

using namespace CppEditor::Internal;

///////////////////////////////// CppPluginEditorFactory //////////////////////////////////

CppPluginEditorFactory::CppPluginEditorFactory(CppPlugin *owner) :
    m_kind(QLatin1String(CppEditor::Constants::CPPEDITOR_KIND)),
    m_owner(owner)
{
    m_mimeTypes << QLatin1String(CppEditor::Constants::C_SOURCE_MIMETYPE)
        << QLatin1String(CppEditor::Constants::C_HEADER_MIMETYPE)
        << QLatin1String(CppEditor::Constants::CPP_SOURCE_MIMETYPE)
        << QLatin1String(CppEditor::Constants::CPP_HEADER_MIMETYPE);
    Core::FileIconProvider *iconProvider = Core::FileIconProvider::instance();
    iconProvider->registerIconForSuffix(QIcon(":/cppeditor/images/qt_cpp.png"),
                                        QLatin1String("cpp"));
    iconProvider->registerIconForSuffix(QIcon(":/cppeditor/images/qt_h.png"),
                                        QLatin1String("h"));
}

QString CppPluginEditorFactory::kind() const
{
    return m_kind;
}

Core::IFile *CppPluginEditorFactory::open(const QString &fileName)
{
    Core::IEditor *iface = m_owner->m_core->editorManager()->openEditor(fileName, kind());
    return iface ? iface->file() : 0;
}

Core::IEditor *CppPluginEditorFactory::createEditor(QWidget *parent)
{
    CPPEditor *editor = new CPPEditor(parent);
    editor->setRevisionsVisible(true);
    editor->setMimeType(CppEditor::Constants::CPP_SOURCE_MIMETYPE);
    m_owner->initializeEditor(editor);
    return editor->editableInterface();
}

QStringList CppPluginEditorFactory::mimeTypes() const
{
    return m_mimeTypes;
}

///////////////////////////////// CppPlugin //////////////////////////////////

CppPlugin *CppPlugin::m_instance = 0;

CppPlugin::CppPlugin() :
    m_core(0),
    m_actionHandler(0),
    m_factory(0)
{
    m_instance = this;
}

CppPlugin::~CppPlugin()
{
    removeObject(m_factory);
    delete m_factory;
    delete m_actionHandler;
    m_instance = 0;
}

CppPlugin *CppPlugin::instance()
{
    return m_instance;
}

Core::ICore *CppPlugin::core()
{
    return m_instance->m_core;
}

void CppPlugin::initializeEditor(CPPEditor *editor)
{
    // common actions
    m_actionHandler->setupActions(editor);

    // settings
    TextEditor::TextEditorSettings *settings = TextEditor::TextEditorSettings::instance();
    connect(settings, SIGNAL(fontSettingsChanged(TextEditor::FontSettings)),
            editor, SLOT(setFontSettings(TextEditor::FontSettings)));
    connect(settings, SIGNAL(tabSettingsChanged(TextEditor::TabSettings)),
            editor, SLOT(setTabSettings(TextEditor::TabSettings)));
    connect(settings, SIGNAL(storageSettingsChanged(TextEditor::StorageSettings)),
            editor, SLOT(setStorageSettings(TextEditor::StorageSettings)));
    connect(settings, SIGNAL(displaySettingsChanged(TextEditor::DisplaySettings)),
            editor, SLOT(setDisplaySettings(TextEditor::DisplaySettings)));

    // tab settings rely on font settings
    editor->setFontSettings(settings->fontSettings());
    editor->setTabSettings(settings->tabSettings());
    editor->setStorageSettings(settings->storageSettings());
    editor->setDisplaySettings(settings->displaySettings());

    // auto completion
    connect(editor, SIGNAL(requestAutoCompletion(ITextEditable*, bool)),
            TextEditor::Internal::CompletionSupport::instance(core()), SLOT(autoComplete(ITextEditable*, bool)));
}

bool CppPlugin::initialize(const QStringList & /*arguments*/, QString *errorMessage)
{
    typedef TextEditor::TextEditorActionHandler TextEditorActionHandler;
    m_core = ExtensionSystem::PluginManager::instance()->getObject<Core::ICore>();
    if (!m_core->mimeDatabase()->addMimeTypes(QLatin1String(":/cppeditor/CppEditor.mimetypes.xml"), errorMessage))
        return false;

    m_factory = new CppPluginEditorFactory(this);
    addObject(m_factory);

    addAutoReleasedObject(new CppHoverHandler);

    CppFileWizard::BaseFileWizardParameters wizardParameters(Core::IWizard::FileWizard);

    wizardParameters.setCategory(QLatin1String("C++"));
    wizardParameters.setTrCategory(tr("C++"));
    wizardParameters.setDescription(tr("Creates a new C++ header file."));
    wizardParameters.setName(tr("C++ Header File"));
    addAutoReleasedObject(new CppFileWizard(wizardParameters, Header, m_core));

    wizardParameters.setDescription(tr("Creates a new C++ source file."));
    wizardParameters.setName(tr("C++ Source File"));
    addAutoReleasedObject(new CppFileWizard(wizardParameters, Source, m_core));

    wizardParameters.setKind(Core::IWizard::ClassWizard);
    wizardParameters.setName(tr("C++ Class"));
    wizardParameters.setDescription(tr("Creates a header and a source file for a new class."));
    addAutoReleasedObject(new CppClassWizard(wizardParameters, m_core));

    QList<int> context;
    context << m_core->uniqueIDManager()->uniqueIdentifier(CppEditor::Constants::C_CPPEDITOR);

    Core::ActionManagerInterface *am = m_core->actionManager();
    am->createMenu(CppEditor::Constants::M_CONTEXT);

    Core::ICommand *cmd;

    QAction *jumpToDefinition = new QAction(tr("Follow Symbol under Cursor"), this);
    cmd = am->registerAction(jumpToDefinition,
        Constants::JUMP_TO_DEFINITION, context);
    cmd->setDefaultKeySequence(QKeySequence(Qt::Key_F2));
    connect(jumpToDefinition, SIGNAL(triggered()),
            this, SLOT(jumpToDefinition()));
    am->actionContainer(CppEditor::Constants::M_CONTEXT)->addAction(cmd);
    am->actionContainer(CppTools::Constants::M_TOOLS_CPP)->addAction(cmd);

    QAction *switchDeclarationDefinition = new QAction(tr("Switch between Method Declaration/Definition"), this);
    cmd = am->registerAction(switchDeclarationDefinition,
        Constants::SWITCH_DECLARATION_DEFINITION, context);
    cmd->setDefaultKeySequence(QKeySequence("Shift+F2"));
    connect(switchDeclarationDefinition, SIGNAL(triggered()),
            this, SLOT(switchDeclarationDefinition()));
    am->actionContainer(CppEditor::Constants::M_CONTEXT)->addAction(cmd);
    am->actionContainer(CppTools::Constants::M_TOOLS_CPP)->addAction(cmd);

    m_actionHandler = new CPPEditorActionHandler(m_core,
        CppEditor::Constants::C_CPPEDITOR,
        TextEditor::TextEditorActionHandler::Format
        | TextEditor::TextEditorActionHandler::UnCommentSelection
        | TextEditor::TextEditorActionHandler::UnCollapseAll);

    // Check Suffixes
    if (const QSettings *settings = m_core->settings()) {
        const QString headerSuffixKey = QLatin1String(headerSuffixKeyC);
        if (settings->contains(headerSuffixKey)) {
            const QString headerSuffix = settings->value(headerSuffixKey, QString()).toString();
            if (!headerSuffix.isEmpty())
                m_core->mimeDatabase()->setPreferredSuffix(QLatin1String(Constants::CPP_HEADER_MIMETYPE), headerSuffix);
            const QString sourceSuffix = settings->value(QLatin1String(sourceSuffixKeyC), QString()).toString();
            if (!sourceSuffix.isEmpty())
                m_core->mimeDatabase()->setPreferredSuffix(QLatin1String(Constants::CPP_SOURCE_MIMETYPE), sourceSuffix);
        }
    }
    return true;
}

void CppPlugin::extensionsInitialized()
{
    m_actionHandler->initializeActions();
}

void CppPlugin::switchDeclarationDefinition()
{
    CPPEditor *editor = qobject_cast<CPPEditor*>(m_core->editorManager()->currentEditor()->widget());
    if (editor) {
        editor->switchDeclarationDefinition();
    }
}

void CppPlugin::jumpToDefinition()
{
    CPPEditor *editor = qobject_cast<CPPEditor*>(m_core->editorManager()->currentEditor()->widget());
    if (editor) {
        editor->jumpToDefinition();
    }
}

Q_EXPORT_PLUGIN(CppPlugin)