/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/

#include "cmakefilecompletionassist.h"
#include "cmakeprojectconstants.h"
#include "cmakeprojectmanager.h"
#include "cmakesettingspage.h"
#include "cmaketoolmanager.h"
#include "cmakekitinformation.h"

#include <texteditor/codeassist/assistinterface.h>
#include <projectexplorer/projecttree.h>
#include <projectexplorer/project.h>
#include <projectexplorer/kit.h>
#include <projectexplorer/target.h>

#include <coreplugin/editormanager/editormanager.h>
#include <projectexplorer/session.h>

using namespace CMakeProjectManager::Internal;
using namespace TextEditor;
using namespace ProjectExplorer;

// -------------------------------
// CMakeFileCompletionAssistProvider
// -------------------------------
CMakeFileCompletionAssistProvider::CMakeFileCompletionAssistProvider()
{}

bool CMakeFileCompletionAssistProvider::supportsEditor(Core::Id editorId) const
{
    return editorId == CMakeProjectManager::Constants::CMAKE_EDITOR_ID;
}

IAssistProcessor *CMakeFileCompletionAssistProvider::createProcessor() const
{
    return new CMakeFileCompletionAssist();
}


CMakeFileCompletionAssist::CMakeFileCompletionAssist() :
    KeywordsCompletionAssistProcessor(Keywords())
{}

IAssistProposal *CMakeFileCompletionAssist::perform(const AssistInterface *interface)
{
    TextEditor::Keywords keywords;

    QString fileName = interface->fileName();
    if (!fileName.isEmpty() && QFileInfo(fileName).isFile()) {
        Utils::FileName file = Utils::FileName::fromString(fileName);
        if (Project *p = SessionManager::projectForFile(file)) {
            if (Target *t = p->activeTarget()) {
                if (CMakeTool *cmake = CMakeKitInformation::cmakeTool(t->kit())) {
                    if (cmake->isValid())
                        keywords = cmake->keywords();
                }
            }
        }
    }

    setKeywords(keywords);
    return KeywordsCompletionAssistProcessor::perform(interface);
}