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#include "winrtpackagedeploymentstep.h"

#include "winrtconstants.h"
#include "winrtpackagedeploymentstepwidget.h"
#include "winrtrunconfiguration.h"

#include <projectexplorer/project.h>
#include <projectexplorer/target.h>
#include <projectexplorer/buildconfiguration.h>
#include <projectexplorer/buildtargetinfo.h>
#include <projectexplorer/deployablefile.h>
#include <projectexplorer/deploymentdata.h>
#include <projectexplorer/projectexplorerconstants.h>
#include <qtsupport/qtkitinformation.h>
#include <utils/qtcassert.h>
#include <utils/qtcprocess.h>

#include <QRegularExpression>

using namespace ProjectExplorer;
using Utils::QtcProcess;

namespace WinRt {
namespace Internal {

WinRtPackageDeploymentStep::WinRtPackageDeploymentStep(BuildStepList *bsl)
    : AbstractProcessStep(bsl, Constants::WINRT_BUILD_STEP_DEPLOY)
    , m_createMappingFile(false)
{
    setDisplayName(tr("Run windeployqt"));
    m_args = defaultWinDeployQtArguments();
}

bool WinRtPackageDeploymentStep::init()
{
    WinRtRunConfiguration *rc = qobject_cast<WinRtRunConfiguration *>(
                target()->activeRunConfiguration());
    QTC_ASSERT(rc, return false);

    const Utils::FileName activeProjectFilePath = Utils::FileName::fromString(rc->proFilePath());
    Utils::FileName appTargetFilePath;
    foreach (const BuildTargetInfo &buildTarget, target()->applicationTargets().list) {
        if (buildTarget.projectFilePath == activeProjectFilePath) {
            appTargetFilePath = buildTarget.targetFilePath;
            break;
        }
    }

    m_targetFilePath = appTargetFilePath.toString();
    if (m_targetFilePath.isEmpty()) {
        raiseError(tr("No executable to deploy found in %1.").arg(rc->proFilePath()));
        return false;
    }

    // ### Ideally, the file paths in applicationTargets() should already have the .exe suffix.
    // Whenever this will eventually work, we can drop appending the .exe suffix here.
    if (!m_targetFilePath.endsWith(QLatin1String(".exe"), Qt::CaseInsensitive))
        m_targetFilePath.append(QLatin1String(".exe"));

    m_targetDirPath = appTargetFilePath.parentDir().toString();
    if (!m_targetDirPath.endsWith(QLatin1Char('/')))
        m_targetDirPath += QLatin1Char('/');

    const QtSupport::BaseQtVersion *qt = QtSupport::QtKitInformation::qtVersion(target()->kit());
    if (!qt)
        return false;

    QString args = QtcProcess::quoteArg(QDir::toNativeSeparators(m_targetFilePath));
    args += QLatin1Char(' ') + m_args;

    if (qt->type() == QLatin1String(Constants::WINRT_WINPHONEQT)) {
        m_createMappingFile = true;
        args += QLatin1String(" -list mapping");
    }

    ProcessParameters *params = processParameters();
    params->setCommand(QLatin1String("windeployqt.exe"));
    params->setArguments(args);
    params->setEnvironment(target()->activeBuildConfiguration()->environment());

    return AbstractProcessStep::init();
}

void WinRtPackageDeploymentStep::run(QFutureInterface<bool> &fi)
{
    AbstractProcessStep::run(fi);

    const QtSupport::BaseQtVersion *qt = QtSupport::QtKitInformation::qtVersion(target()->kit());
    if (!qt)
        return;

    m_manifestFileName = QStringLiteral("AppxManifest");

    if (m_createMappingFile) {
        m_mappingFileContent = QLatin1String("[Files]\n");

        QDir assetDirectory(m_targetDirPath + QLatin1String("assets"));
        if (assetDirectory.exists()) {
            QStringList iconsToDeploy;
            const QString fullManifestPath = m_targetDirPath + m_manifestFileName
                    + QLatin1String(".xml");
            if (!parseIconsAndExecutableFromManifest(fullManifestPath, &iconsToDeploy,
                                                     &m_executablePathInManifest)) {
                raiseError(tr("Cannot parse manifest file %1.").arg(fullManifestPath));
                return;
            }
            foreach (const QString &icon, iconsToDeploy) {
                m_mappingFileContent += QLatin1Char('"')
                        + QDir::toNativeSeparators(m_targetDirPath + icon) + QLatin1String("\" \"")
                        + QDir::toNativeSeparators(icon) + QLatin1String("\"\n");
            }
        }
    }
}

bool WinRtPackageDeploymentStep::processSucceeded(int exitCode, QProcess::ExitStatus status)
{
    if (m_createMappingFile) {
        QString targetInstallationPath;
        // The list holds the local file paths and the "remote" file paths
        QList<QPair<QString, QString> > installableFilesList;
        foreach (DeployableFile file, target()->deploymentData().allFiles()) {
            QString remoteFilePath = file.remoteFilePath();
            while (remoteFilePath.startsWith(QLatin1Char('/')))
                remoteFilePath.remove(0, 1);
            QString localFilePath = file.localFilePath().toString();
            if (localFilePath == m_targetFilePath) {
                if (!m_targetFilePath.endsWith(QLatin1String(".exe"))) {
                    remoteFilePath += QLatin1String(".exe");
                    localFilePath += QLatin1String(".exe");
                }
                targetInstallationPath = remoteFilePath;
            }
            installableFilesList.append(QPair<QString, QString>(localFilePath, remoteFilePath));
        }

        // if there are no INSTALLS set we just deploy the files from windeployqt,
        // the icons referenced in the manifest file and the actual build target
        QString baseDir;
        if (targetInstallationPath.isEmpty()) {
            if (!m_targetFilePath.endsWith(QLatin1String(".exe")))
                m_targetFilePath.append(QLatin1String(".exe"));
            m_mappingFileContent
                    += QLatin1Char('"') + QDir::toNativeSeparators(m_targetFilePath)
                    + QLatin1String("\" \"")
                    + QDir::toNativeSeparators(m_executablePathInManifest) + QLatin1String("\"\n");
            baseDir = m_targetDirPath;
        } else {
            baseDir = targetInstallationPath.left(targetInstallationPath.lastIndexOf(QLatin1Char('/')) + 1);
        }

        typedef QPair<QString, QString> QStringPair;
        foreach (const QStringPair &pair, installableFilesList) {
            // For the mapping file we need the remote paths relative to the application's executable
            QString relativeRemotePath;
            if (QDir(pair.second).isRelative())
                relativeRemotePath = pair.second;
            else
                relativeRemotePath = QDir(baseDir).relativeFilePath(pair.second);

            if (QDir(relativeRemotePath).isAbsolute() || relativeRemotePath.startsWith(QLatin1String(".."))) {
                raiseWarning(tr("File %1 is outside of the executable's directory. These files cannot be installed.").arg(relativeRemotePath));
                continue;
            }

            m_mappingFileContent += QLatin1Char('"') + QDir::toNativeSeparators(pair.first)
                    + QLatin1String("\" \"") + QDir::toNativeSeparators(relativeRemotePath)
                    + QLatin1String("\"\n");
        }

        const QString mappingFilePath = m_targetDirPath + m_manifestFileName
                + QLatin1String(".map");
        QFile mappingFile(mappingFilePath);
        if (!mappingFile.open(QFile::WriteOnly | QFile::Text)) {
            raiseError(tr("Cannot open mapping file %1 for writing.").arg(mappingFilePath));
            return false;
        }
        mappingFile.write(m_mappingFileContent.toUtf8());
    }

    return AbstractProcessStep::processSucceeded(exitCode, status);
}

void WinRtPackageDeploymentStep::stdOutput(const QString &line)
{
    if (m_createMappingFile)
        m_mappingFileContent += line;
    AbstractProcessStep::stdOutput(line);
}

BuildStepConfigWidget *WinRtPackageDeploymentStep::createConfigWidget()
{
    return new WinRtPackageDeploymentStepWidget(this);
}

void WinRtPackageDeploymentStep::setWinDeployQtArguments(const QString &args)
{
    m_args = args;
}

QString WinRtPackageDeploymentStep::winDeployQtArguments() const
{
    return m_args;
}

QString WinRtPackageDeploymentStep::defaultWinDeployQtArguments() const
{
    QString args;
    QtcProcess::addArg(&args, QStringLiteral("--qmldir"));
    QtcProcess::addArg(&args, project()->projectDirectory().toUserOutput());
    return args;
}

void WinRtPackageDeploymentStep::raiseError(const QString &errorMessage)
{
    ProjectExplorer::Task task = Task(Task::Error, errorMessage, Utils::FileName(), -1,
                                      ProjectExplorer::Constants::TASK_CATEGORY_DEPLOYMENT);
    emit addTask(task, 1);
    emit addOutput(errorMessage, BuildStep::ErrorMessageOutput);
}

void WinRtPackageDeploymentStep::raiseWarning(const QString &warningMessage)
{
    ProjectExplorer::Task task = Task(Task::Warning, warningMessage, Utils::FileName(), -1,
                                      ProjectExplorer::Constants::TASK_CATEGORY_DEPLOYMENT);
    emit addTask(task, 1);
    emit addOutput(warningMessage, BuildStep::MessageOutput);
}

bool WinRtPackageDeploymentStep::fromMap(const QVariantMap &map)
{
    if (!AbstractProcessStep::fromMap(map))
        return false;
    QVariant v = map.value(QLatin1String(Constants::WINRT_BUILD_STEP_DEPLOY_ARGUMENTS));
    if (v.isValid())
        m_args = v.toString();
    return true;
}

QVariantMap WinRtPackageDeploymentStep::toMap() const
{
    QVariantMap map = AbstractProcessStep::toMap();
    map.insert(QLatin1String(Constants::WINRT_BUILD_STEP_DEPLOY_ARGUMENTS), m_args);
    return map;
}

bool WinRtPackageDeploymentStep::parseIconsAndExecutableFromManifest(QString manifestFileName, QStringList *icons, QString *executable)
{
    if (!icons->isEmpty())
        icons->clear();
    QFile manifestFile(manifestFileName);
    if (!manifestFile.open(QFile::ReadOnly))
        return false;
    const QString contents = QString::fromUtf8(manifestFile.readAll());

    QRegularExpression iconPattern(QStringLiteral("[\\\\/a-zA-Z0-9_\\-\\!]*\\.(png|jpg|jpeg)"));
    QRegularExpressionMatchIterator iterator = iconPattern.globalMatch(contents);
    while (iterator.hasNext()) {
        QRegularExpressionMatch match = iterator.next();
        const QString icon = match.captured(0);
        icons->append(icon);
    }

    const QLatin1String executablePrefix(manifestFileName.contains(QLatin1String("AppxManifest")) ? "Executable=" : "ImagePath=");
    QRegularExpression executablePattern(executablePrefix + QStringLiteral("\"([a-zA-Z0-9_-]*\\.exe)\""));
    QRegularExpressionMatch match = executablePattern.match(contents);
    if (!match.hasMatch())
        return false;
    *executable = match.captured(1);

    return true;
}

} // namespace Internal
} // namespace WinRt