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**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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**
** This file is part of Qt Creator.
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** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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#include "qbsproject.h"

#include "qbsbuildconfiguration.h"
#include "qbslogsink.h"
#include "qbsprojectfile.h"
#include "qbsprojectmanagerconstants.h"
#include "qbsnodes.h"

#include <coreplugin/documentmanager.h>
#include <utils/qtcassert.h>

#include <language/language.h>

#include <coreplugin/icontext.h>
#include <coreplugin/icore.h>
#include <coreplugin/id.h>
#include <coreplugin/progressmanager/progressmanager.h>
#include <coreplugin/mimedatabase.h>
#include <cpptools/cppmodelmanager.h>
#include <projectexplorer/buildenvironmentwidget.h>
#include <projectexplorer/kit.h>
#include <projectexplorer/kitinformation.h>
#include <projectexplorer/projectexplorer.h>
#include <projectexplorer/projectexplorerconstants.h>
#include <projectexplorer/target.h>
#include <projectexplorer/taskhub.h>
#include <projectexplorer/toolchain.h>
#include <projectexplorer/headerpath.h>
#include <qtsupport/qtkitinformation.h>
#include <qmljstools/qmljsmodelmanager.h>

#include <qmljs/qmljsmodelmanagerinterface.h>

#include <qbs.h>
#include <tools/scripttools.h> // qbs, remove once there is a expand method in Qbs itself!

#include <QFileInfo>

// --------------------------------------------------------------------
// Constants:
// --------------------------------------------------------------------

static const char CONFIG_CPP_MODULE[] = "cpp";
static const char CONFIG_CXXFLAGS[] = "cxxflags";
static const char CONFIG_DEFINES[] = "defines";
static const char CONFIG_INCLUDEPATHS[] = "includePaths";
static const char CONFIG_FRAMEWORKPATHS[] = "frameworkPaths";
static const char CONFIG_PRECOMPILEDHEADER[] = "precompiledHeader";

static const char CONFIGURATION_PATH[] = "<configuration>";

// --------------------------------------------------------------------
// HELPERS:
// --------------------------------------------------------------------

ProjectExplorer::TaskHub *taskHub()
{
    return ProjectExplorer::ProjectExplorerPlugin::instance()->taskHub();
}


namespace QbsProjectManager {
namespace Internal {

// --------------------------------------------------------------------
// QbsProject:
// --------------------------------------------------------------------

QbsProject::QbsProject(QbsManager *manager, const QString &fileName) :
    m_manager(manager), m_projectName(QFileInfo(fileName).completeBaseName()), m_fileName(fileName),
    m_rootProjectNode(new QbsProjectNode(fileName)),
    m_qbsSetupProjectJob(0),
    m_qbsUpdateFutureInterface(0),
    m_currentBc(0)
{
    setProjectContext(Core::Context(Constants::PROJECT_ID));
    Core::Context pl(ProjectExplorer::Constants::LANG_CXX);
    pl.add(ProjectExplorer::Constants::LANG_QMLJS);
    setProjectLanguages(pl);


    connect(this, SIGNAL(activeTargetChanged(ProjectExplorer::Target*)),
            this, SLOT(changeActiveTarget(ProjectExplorer::Target*)));
    connect(this, SIGNAL(addedTarget(ProjectExplorer::Target*)),
            this, SLOT(targetWasAdded(ProjectExplorer::Target*)));

    updateDocuments(0);
}

QbsProject::~QbsProject()
{
    m_codeModelFuture.cancel();
}

QString QbsProject::displayName() const
{
    return m_projectName;
}

Core::Id QbsProject::id() const
{
    return Core::Id(Constants::PROJECT_ID);
}

Core::IDocument *QbsProject::document() const
{
    foreach (Core::IDocument *doc, m_qbsDocuments) {
        if (doc->fileName() == m_fileName)
            return doc;
    }
    QTC_ASSERT(false, return 0);
}

QbsManager *QbsProject::projectManager() const
{
    return m_manager;
}

ProjectExplorer::ProjectNode *QbsProject::rootProjectNode() const
{
    return m_rootProjectNode;
}

QStringList QbsProject::files(ProjectExplorer::Project::FilesMode fileMode) const
{
    Q_UNUSED(fileMode);
    QSet<QString> result;
    if (m_rootProjectNode && m_rootProjectNode->projectData()) {
        foreach (const qbs::ProductData &prd, m_rootProjectNode->projectData()->products()) {
            foreach (const qbs::GroupData &grp, prd.groups()) {
                foreach (const QString &file, grp.allFilePaths())
                    result.insert(file);
                result.insert(grp.location().fileName);
            }
            result.insert(prd.location().fileName);
        }
        result.insert(m_rootProjectNode->projectData()->location().fileName);
    }
    return result.toList();
}

void QbsProject::invalidate()
{
    prepareForParsing();
}

qbs::BuildJob *QbsProject::build(const qbs::BuildOptions &opts)
{
    if (!qbsProject())
        return 0;
    if (!activeTarget() || !activeTarget()->kit())
        return 0;
    ProjectExplorer::BuildConfiguration *bc = 0;
    bc = activeTarget()->activeBuildConfiguration();
    if (!bc)
        return 0;

    QProcessEnvironment env = bc->environment().toProcessEnvironment();
    return qbsProject()->buildAllProducts(opts, env);
}

qbs::CleanJob *QbsProject::clean(const qbs::CleanOptions &opts)
{
    if (!qbsProject())
        return 0;
    return qbsProject()->cleanAllProducts(opts);
}

qbs::InstallJob *QbsProject::install(const qbs::InstallOptions &opts)
{
    if (!qbsProject())
        return 0;
    return qbsProject()->installAllProducts(opts);
}

QString QbsProject::profileForTarget(const ProjectExplorer::Target *t) const
{
    return m_manager->profileForKit(t->kit());
}

bool QbsProject::isParsing() const
{
    return m_qbsUpdateFutureInterface;
}

bool QbsProject::hasParseResult() const
{
    return qbsProject();
}

Utils::FileName QbsProject::defaultBuildDirectory() const
{
    QFileInfo fi(m_fileName);
    const QString buildDir = QDir(fi.canonicalPath()).absoluteFilePath(QString::fromLatin1("../%1-build").arg(fi.baseName()));
    return Utils::FileName::fromString(buildDir);
}

const qbs::Project *QbsProject::qbsProject() const
{
    if (!m_rootProjectNode)
        return 0;
    return m_rootProjectNode->project();
}

const qbs::ProjectData *QbsProject::qbsProjectData() const
{
    if (!m_rootProjectNode)
        return 0;
    return m_rootProjectNode->projectData();
}

void QbsProject::handleQbsParsingDone(bool success)
{
    QTC_ASSERT(m_qbsSetupProjectJob, return);
    QTC_ASSERT(m_qbsUpdateFutureInterface, return);

    qbs::Project *project = 0;
    if (success) {
        project = new qbs::Project(m_qbsSetupProjectJob->project());
    } else {
        generateErrors(m_qbsSetupProjectJob->error());
        m_qbsUpdateFutureInterface->reportCanceled();
    }
    m_qbsSetupProjectJob->deleteLater();
    m_qbsSetupProjectJob = 0;

    m_qbsUpdateFutureInterface->reportFinished();
    delete m_qbsUpdateFutureInterface;
    m_qbsUpdateFutureInterface = 0;

    m_rootProjectNode->update(project);

    updateDocuments(m_rootProjectNode->projectData());

    updateCppCodeModel(m_rootProjectNode->projectData());
    updateQmlJsCodeModel(m_rootProjectNode->projectData());

    emit projectParsingDone(success);
}

void QbsProject::handleQbsParsingProgress(int progress)
{
    if (m_qbsUpdateFutureInterface)
        m_qbsUpdateFutureInterface->setProgressValue(m_currentProgressBase + progress);
}

void QbsProject::handleQbsParsingTaskSetup(const QString &description, int maximumProgressValue)
{
    Q_UNUSED(description);
    if (m_qbsUpdateFutureInterface) {
        m_currentProgressBase = m_qbsUpdateFutureInterface->progressValue();
        m_qbsUpdateFutureInterface->setProgressRange(0, m_currentProgressBase + maximumProgressValue);
    }
}

void QbsProject::targetWasAdded(ProjectExplorer::Target *t)
{
    connect(t, SIGNAL(activeBuildConfigurationChanged(ProjectExplorer::BuildConfiguration*)),
            this, SLOT(parseCurrentBuildConfiguration()));
    connect(t, SIGNAL(buildDirectoryChanged()),
            this, SLOT(parseCurrentBuildConfiguration()));
}

void QbsProject::changeActiveTarget(ProjectExplorer::Target *t)
{
    ProjectExplorer::BuildConfiguration *bc = 0;
    if (t && t->kit())
        bc = t->activeBuildConfiguration();
    buildConfigurationChanged(bc);
}

void QbsProject::buildConfigurationChanged(ProjectExplorer::BuildConfiguration *bc)
{
    if (m_currentBc)
        disconnect(m_currentBc, SIGNAL(qbsConfigurationChanged()), this, SLOT(parseCurrentBuildConfiguration()));

    m_currentBc = qobject_cast<QbsBuildConfiguration *>(bc);
    if (m_currentBc) {
        connect(m_currentBc, SIGNAL(qbsConfigurationChanged()), this, SLOT(parseCurrentBuildConfiguration()));
        parseCurrentBuildConfiguration();
    } else {
        invalidate();
    }
}

void QbsProject::parseCurrentBuildConfiguration()
{
    if (!activeTarget())
        return;
    QbsBuildConfiguration *bc = qobject_cast<QbsBuildConfiguration *>(activeTarget()->activeBuildConfiguration());
    if (!bc)
        return;
    parse(bc->qbsConfiguration(), bc->buildDirectory());
}

bool QbsProject::fromMap(const QVariantMap &map)
{
    if (!Project::fromMap(map))
        return false;

    ProjectExplorer::KitManager *km = ProjectExplorer::KitManager::instance();
    if (!activeTarget() && km->defaultKit()) {
        ProjectExplorer::Target *t = new ProjectExplorer::Target(this, km->defaultKit());
        t->updateDefaultBuildConfigurations();
        t->updateDefaultDeployConfigurations();
        t->updateDefaultRunConfigurations();
        addTarget(t);
    }

    return true;
}

void QbsProject::generateErrors(const qbs::Error &e)
{
    foreach (const qbs::ErrorData &data, e.entries())
        taskHub()->addTask(ProjectExplorer::Task(ProjectExplorer::Task::Error,
                                                 data.description(),
                                                 Utils::FileName::fromString(data.codeLocation().fileName),
                                                 data.codeLocation().line,
                                                 ProjectExplorer::Constants::TASK_CATEGORY_BUILDSYSTEM));
}

void QbsProject::parse(const QVariantMap &config, const QString &dir)
{
    QTC_ASSERT(!dir.isNull(), return);
    prepareForParsing();
    m_qbsBuildConfig = config;
    m_qbsBuildRoot = dir;

    QTC_ASSERT(!m_qbsSetupProjectJob, return);
    qbs::SetupProjectParameters params;
    params.buildConfiguration = m_qbsBuildConfig;
    params.buildRoot = m_qbsBuildRoot;
    params.projectFilePath = m_fileName;
    params.ignoreDifferentProjectFilePath = false;
    qbs::Preferences *prefs = QbsManager::preferences();
    const QString buildDir = qbsBuildDir();
    params.searchPaths = prefs->searchPaths(buildDir);
    params.pluginPaths = prefs->pluginPaths(buildDir);

    m_qbsSetupProjectJob
            = qbs::Project::setupProject(params, m_manager->settings(), m_manager->logSink(), 0);

    connect(m_qbsSetupProjectJob, SIGNAL(finished(bool,qbs::AbstractJob*)),
            this, SLOT(handleQbsParsingDone(bool)));
    connect(m_qbsSetupProjectJob, SIGNAL(taskStarted(QString,int,qbs::AbstractJob*)),
            this, SLOT(handleQbsParsingTaskSetup(QString,int)));
    connect(m_qbsSetupProjectJob, SIGNAL(taskProgress(int,qbs::AbstractJob*)),
            this, SLOT(handleQbsParsingProgress(int)));
}

void QbsProject::prepareForParsing()
{
    taskHub()->clearTasks(ProjectExplorer::Constants::TASK_CATEGORY_BUILDSYSTEM);
    if (m_qbsUpdateFutureInterface)
        m_qbsUpdateFutureInterface->reportCanceled();
    delete m_qbsUpdateFutureInterface;
    m_qbsUpdateFutureInterface = 0;

    // FIXME: Christian claims this should work
    delete m_qbsSetupProjectJob;
    m_qbsSetupProjectJob = 0;

    m_currentProgressBase = 0;
    m_qbsUpdateFutureInterface = new QFutureInterface<void>();
    m_qbsUpdateFutureInterface->setProgressRange(0, 0);
    Core::ICore::progressManager()->addTask(m_qbsUpdateFutureInterface->future(), tr("Evaluating"),
                                            QLatin1String(Constants::QBS_EVALUATE));
    m_qbsUpdateFutureInterface->reportStarted();
}

void QbsProject::updateDocuments(const qbs::ProjectData *prj)
{
    // Update documents:
    QSet<QString> newFiles;
    newFiles.insert(m_fileName); // make sure we always have the project file...

    if (prj) {
        newFiles.insert(prj->location().fileName);
        foreach (const qbs::ProductData &prd, prj->products())
            newFiles.insert(prd.location().fileName);
    }
    QSet<QString> oldFiles;
    foreach (Core::IDocument *doc, m_qbsDocuments)
        oldFiles.insert(doc->fileName());

    QSet<QString> filesToAdd = newFiles;
    filesToAdd.subtract(oldFiles);
    QSet<QString> filesToRemove = oldFiles;
    filesToRemove.subtract(newFiles);

    QSet<Core::IDocument *> currentDocuments = m_qbsDocuments;
    foreach (Core::IDocument *doc, currentDocuments) {
        if (filesToRemove.contains(doc->fileName())) {
            m_qbsDocuments.remove(doc);
            delete doc;
        }
    }
    QSet<Core::IDocument *> toAdd;
    foreach (const QString &f, filesToAdd)
        toAdd.insert(new QbsProjectFile(this, f));

    Core::DocumentManager::instance()->addDocuments(toAdd.toList());
    m_qbsDocuments.unite(toAdd);
}

void QbsProject::updateCppCodeModel(const qbs::ProjectData *prj)
{
    if (!prj)
        return;

    ProjectExplorer::Kit *k = 0;
    QtSupport::BaseQtVersion *qtVersion = 0;
    ProjectExplorer::ToolChain *tc = 0;
    if (ProjectExplorer::Target *target = activeTarget())
        k = target->kit();
    else
        k = ProjectExplorer::KitManager::instance()->defaultKit();
    qtVersion = QtSupport::QtKitInformation::qtVersion(k);
    tc = ProjectExplorer::ToolChainKitInformation::toolChain(k);

    CppTools::CppModelManagerInterface *modelmanager =
        CppTools::CppModelManagerInterface::instance();

    if (!modelmanager)
        return;

    CppTools::CppModelManagerInterface::ProjectInfo pinfo = modelmanager->projectInfo(this);
    pinfo.clearProjectParts();
    CppTools::ProjectPart::QtVersion qtVersionForPart
            = CppTools::ProjectPart::NoQt;
    if (qtVersion) {
        if (qtVersion->qtVersion() < QtSupport::QtVersionNumber(5,0,0))
            qtVersionForPart = CppTools::ProjectPart::Qt4;
        else
            qtVersionForPart = CppTools::ProjectPart::Qt5;
    }

    QStringList allFiles;
    foreach (const qbs::ProductData &prd, prj->products()) {
        foreach (const qbs::GroupData &grp, prd.groups()) {
            const qbs::PropertyMap &props = grp.properties();

            QStringList grpIncludePaths;
            QStringList grpFrameworkPaths;
            QByteArray grpDefines;
            bool isCxx11;
            const QStringList cxxFlags = props.getModulePropertiesAsStringList(
                        QLatin1String(CONFIG_CPP_MODULE),
                        QLatin1String(CONFIG_CXXFLAGS));

            // Toolchain specific stuff:
            QList<ProjectExplorer::HeaderPath> includePaths;
            if (tc) {
                includePaths = tc->systemHeaderPaths(cxxFlags, ProjectExplorer::SysRootKitInformation::sysRoot(k));
                grpDefines += tc->predefinedMacros(cxxFlags);
                if (tc->compilerFlags(cxxFlags) == ProjectExplorer::ToolChain::STD_CXX11)
                    isCxx11 = true;
            }
            foreach (const ProjectExplorer::HeaderPath &headerPath, includePaths) {
                if (headerPath.kind() == ProjectExplorer::HeaderPath::FrameworkHeaderPath)
                    grpFrameworkPaths.append(headerPath.path());
                else
                    grpIncludePaths.append(headerPath.path());
            }

            QStringList list = props.getModulePropertiesAsStringList(
                        QLatin1String(CONFIG_CPP_MODULE),
                        QLatin1String(CONFIG_DEFINES));
            foreach (const QString &def, list) {
                QByteArray data = def.toUtf8();
                int pos = data.indexOf('=');
                if (pos >= 0)
                    data[pos] = ' ';
                grpDefines += (QByteArray("#define ") + data + '\n');
            }

            list = props.getModulePropertiesAsStringList(QLatin1String(CONFIG_CPP_MODULE),
                                                         QLatin1String(CONFIG_INCLUDEPATHS));
            foreach (const QString &p, list) {
                const QString cp = Utils::FileName::fromUserInput(p).toString();
                grpIncludePaths.append(cp);
            }

            list = props.getModulePropertiesAsStringList(QLatin1String(CONFIG_CPP_MODULE),
                                                         QLatin1String(CONFIG_FRAMEWORKPATHS));
            foreach (const QString &p, list) {
                const QString cp = Utils::FileName::fromUserInput(p).toString();
                grpFrameworkPaths.append(cp);
            }

            const QString pch = props.getModuleProperty(QLatin1String(CONFIG_CPP_MODULE),
                    QLatin1String(CONFIG_PRECOMPILEDHEADER)).toString();

            CppTools::ProjectPart::Ptr part(new CppTools::ProjectPart);
            CppTools::ProjectFileAdder adder(part->files);
            foreach (const QString &file, grp.allFilePaths())
                if (adder.maybeAdd(file))
                    allFiles.append(file);
            part->files << CppTools::ProjectFile(QLatin1String(CONFIGURATION_PATH),
                                                  CppTools::ProjectFile::CXXHeader);

            part->qtVersion = qtVersionForPart;
            // TODO: qbs has separate variable for CFLAGS
            part->cVersion = CppTools::ProjectPart::C99;
            part->cxxVersion = isCxx11 ? CppTools::ProjectPart::CXX11 : CppTools::ProjectPart::CXX98;
            // TODO: get the exact cxxExtensions from toolchain
            part->includePaths = grpIncludePaths;
            part->frameworkPaths = grpFrameworkPaths;
            part->precompiledHeaders = QStringList(pch);
            part->defines = grpDefines;
            pinfo.appendProjectPart(part);
        }
    }

    setProjectLanguage(ProjectExplorer::Constants::LANG_CXX, !allFiles.isEmpty());

    if (pinfo.projectParts().isEmpty())
        return;

    // Register update the code model:
    modelmanager->updateProjectInfo(pinfo);
    m_codeModelFuture = modelmanager->updateSourceFiles(allFiles);
}

void QbsProject::updateQmlJsCodeModel(const qbs::ProjectData *prj)
{
    Q_UNUSED(prj);
    QmlJS::ModelManagerInterface *modelManager = QmlJS::ModelManagerInterface::instance();
    if (!modelManager)
        return;

    QmlJS::ModelManagerInterface::ProjectInfo projectInfo =
            QmlJSTools::defaultProjectInfoForProject(this);

    setProjectLanguage(ProjectExplorer::Constants::LANG_QMLJS, !projectInfo.sourceFiles.isEmpty());
    modelManager->updateProjectInfo(projectInfo);
}

QString QbsProject::qbsBuildDir() const
{
    QString buildDir = Utils::Environment::systemEnvironment()
            .value(QLatin1String("QBS_BUILD_DIR"));
    if (buildDir.isEmpty())
        buildDir = Core::ICore::resourcePath() + QLatin1String("/qbs");
    return buildDir;
}

} // namespace Internal
} // namespace QbsProjectManager