cxDataLocations.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/
#include "cxDataLocations.h"

#include <iostream>
#include <QApplication>
#include <QDir>
#include "cxConfig.h"
#include "cxSettings.h"
#include "cxFileHelpers.h"
#include "cxTypeConversions.h"
#include "cxReporter.h"
#include "cxProfile.h"

namespace cx
{

//---------------------------------------------------------
bool DataLocations::mTestMode = false;
bool DataLocations::mRunFromBuildFolder = false;
bool DataLocations::mBuildFolderChecked = false;
QString DataLocations::mWebsiteUrl = "";
//---------------------------------------------------------

void DataLocations::setTestMode()
{
        mTestMode = true;
        cx::removeNonemptyDirRecursively(getTestDataPath() + "/temp");
        cx::removeNonemptyDirRecursively(getPersistentWritablePath());
}

QString DataLocations::getTestDataPath()
{
        QString settingsPath = cx::DataLocations::getRootConfigPath() + "/settings";
        QString dataRootConfigFile = settingsPath + "/data_root_location.txt";
        if (QFileInfo(dataRootConfigFile).exists())
        {
                return readTestDataPathFromFile(dataRootConfigFile);
        }
        else
        {
                return CX_DATA_ROOT;
        }
}

QString DataLocations::getLargeTestDataPath()
{
        QString settingsPath = cx::DataLocations::getRootConfigPath() + "/settings";
        QString dataRootConfigFile = settingsPath + "/large_data_root_location.txt";
        if (QFileInfo(dataRootConfigFile).exists())
        {
                return readTestDataPathFromFile(dataRootConfigFile);
        }
        else
        {
                return CX_LARGE_DATA_ROOT;
        }
}

QString DataLocations::getExistingTestData(QString pathRelativeToTestDataRoot, QString filename)
{
        QString path;

        path = QString("%1/%2/%3").arg(getTestDataPath()).arg(pathRelativeToTestDataRoot).arg(filename);
        if (QFileInfo(path).exists())
                return path;

        path = QString("%1/%2/%3").arg(getLargeTestDataPath()).arg(pathRelativeToTestDataRoot).arg(filename);
        if (QFileInfo(path).exists())
                return path;

        return "";
}

QString DataLocations::readTestDataPathFromFile(QString filename)
{
        QFile file(filename);
        file.open(QFile::ReadOnly);
        QString cxDataRoot(file.readAll());
        return cxDataRoot;
}

QString DataLocations::getPersistentWritablePath()
{
        QString homepath = QDir::homePath() + "/" + CX_SYSTEM_BASE_NAME + "_settings";

        if (mTestMode)
        homepath = homepath + "/temp";

        return homepath;
}

void DataLocations::deletePersistentWritablePath()
{
    QString pathToDelete = DataLocations::getPersistentWritablePath();
    QDir dir(pathToDelete);
    CX_LOG_INFO() << "Going to delete:" << dir.absolutePath();
    dir.removeRecursively();
}


QString DataLocations::getBundlePath()
{
    // This method is becoming problematic (2015-11-30/CA):
    // the APPLE case returns path to folder enclosing the bundle
    // while the LINUX/WIN case returns path to bin folder.
    // This is not symmetric - it should be. Try to migrate away from this
    // method, using applicationDirPath instead, and remove it.
    //
#ifdef __APPLE__
        QString path(qApp->applicationDirPath()+"/../../..");
        QString bundle = QDir(qApp->applicationDirPath()+"/../..").canonicalPath();
        if (QFileInfo(bundle).isBundle())
        return QDir(path).canonicalPath();
        else
                return qApp->applicationDirPath();
#else
        QString path(qApp->applicationDirPath());
        return path;
#endif
}

QStringList DataLocations::getDefaultPluginsPath()
{
        QStringList retval;

        if(!isRunFromBuildFolder())
        {
                QString appPath(qApp->applicationDirPath());

                QString installLocation = appPath;
#ifndef CX_WINDOWS
                installLocation = appPath + "/plugins";
#endif
                if (QFile(installLocation).exists())
                        retval << installLocation;

                QString fallbackInstallLocation = appPath;
                if (QFile(fallbackInstallLocation).exists())
                        retval << fallbackInstallLocation;      }
        else
        {
                QString bundlePath = DataLocations::getBundlePath();

                QString buildLocation = bundlePath;
#ifndef CX_WINDOWS
                buildLocation = bundlePath + "/plugins";
#endif
                if (QFile(buildLocation).exists())
                        retval <<  buildLocation;
        }

        return retval;
}

QString DataLocations::getRootConfigPath()
{
        QStringList paths = getRootConfigPaths();
        if (paths.empty())
                return "";
        // Those who ask for a single (legacy) config path need
        // the default CX path, not the override.
        return paths.back();
}

QStringList DataLocations::getRootConfigPaths()
{
        if(!isRunFromBuildFolder())
        {
         // look for installed location
        QString path = QString("%1/%2").arg(qApp->applicationDirPath()).arg(CX_CONFIG_ROOT_RELATIVE_INSTALLED);
                if (QDir(path).exists())
                        return QStringList() << QDir(path).canonicalPath();
                else
                {
                        std::cout << "DataLocations::getRootConfigPaths(): Cannot find config root path: " << path << std::endl;
                        return QStringList();
                }
        }

        // add folders with the most important first: If the same file exists in both locations,
        // the first should be prefered.
        QStringList retval;
        if (QDir(CX_OPTIONAL_CONFIG_ROOT).exists()) // look for override folder in source code
                retval << QDir(CX_OPTIONAL_CONFIG_ROOT).canonicalPath();
        if (QDir(CX_CONFIG_ROOT).exists()) // look for default folder in source code
                retval << QDir(CX_CONFIG_ROOT).canonicalPath();

        return retval;
}

QString DataLocations::getDocPath()
{
        if(!isRunFromBuildFolder())
        {
        QString path = QString("%1/%2").arg(qApp->applicationDirPath()).arg(CX_DOC_ROOT_RELATIVE_INSTALLED);
//              QString path = getBundlePath() + "/" + CX_DOC_ROOT_RELATIVE_INSTALLED; // look for installed location
                if (QDir(path).exists())
                        return QDir(path).canonicalPath();
                else
                {
                        CX_LOG_ERROR() << QString("Cannot find doc path: ") << path;
                        return "";
                }
        }

        if (QDir(CX_DOC_ROOT).exists()) // look for folder in source code
                return QDir(CX_DOC_ROOT).canonicalPath();
        else
        {
                CX_LOG_ERROR() << QString("Cannot find doc path: ") << CX_DOC_ROOT;
                return "";
        }
}

QStringList DataLocations::appendStringToAllElements(QStringList root, QString suffix)
{
        QStringList retval;
        for (int i=0; i<root.size(); ++i)
                retval << root[i] + suffix;
        return retval;
}

namespace
{
QString changeExtension(QString name, QString ext)
{
        QStringList splitName = name.split(".");
        splitName[splitName.size()-1] = ext;
        return splitName.join(".");
}
} //namespace

QString DataLocations::getCachePath()
{
    QString path(getPersistentWritablePath()+"/cache");
        return path;
}

QString DataLocations::findConfigFolder(QString pathRelativeToConfigRoot, QString alternativeAbsolutePath)
{
        return findConfigPath("", pathRelativeToConfigRoot, alternativeAbsolutePath);
}

QString DataLocations::findConfigPath(QString fileName, QString pathRelativeToConfigRoot, QString alternativeAbsolutePath)
{
        QFileInfo filePath(findConfigFilePath(fileName, pathRelativeToConfigRoot, alternativeAbsolutePath));
    return filePath.absolutePath() + "/";
}

QString DataLocations::findConfigFilePath(QString fileName, QString pathRelativeToConfigRoot, QString alternativeAbsolutePath)
{
        QStringList paths;
        foreach (QString root, getRootConfigPaths())
        {
                QString path = root + "/" + pathRelativeToConfigRoot + "/" + fileName;
                paths << path;
                if (QFileInfo(path).exists())
                        return path;
        }

        QString path = QString(alternativeAbsolutePath + "/" + fileName);
        paths << path;
        if (QFileInfo(path).exists())
                return path;

        reportWarning("DataLocations::findConfigFile. Error: Can't find " + fileName + " in any of\n" + paths.join("  \n"));
        return "";
}

QString DataLocations::checkExecutableExist(QString path, QString filename)
{
        QStringList retval;
        path = QDir::cleanPath(path);
        if (QDir(path).exists(filename))
                return QDir(DataLocations::getBundlePath()).absoluteFilePath(path + "/" + filename);
        return "";
}

QString DataLocations::findExecutableInStandardLocations(QString filename)
{
        QString result;
//#ifdef __APPLE__
//      // run from installed folder on mac
//      result = DataLocations::checkExecutableExist(qApp->applicationDirPath(), filename);
//      if (!result.isEmpty())
//              return result;
//#endif
        // run from installed or build bin folder
    result = DataLocations::checkExecutableExist(qApp->applicationDirPath(), filename);
        if (!result.isEmpty())
                return result;

        return result;
}

void DataLocations::setWebsiteURL(QString websiteUrl)
{
    mWebsiteUrl = websiteUrl;
}

QString DataLocations::getWebsiteURL()
{
    return mWebsiteUrl;
}

QString DataLocations::getUploadsUrl()
{
    return QString("http://custusx.org/uploads");
}

QString DataLocations::getWebsiteUserDocumentationURL()
{
        QString version(CustusX_VERSION_STRING);
        if (version.contains("dev"))
                version = "nightly";
    QString url = QString("%1/user_doc/%2")
            .arg(DataLocations::getUploadsUrl())
                        .arg(version);
        return url;
}

bool DataLocations::isRunFromBuildFolder()
{
        if(!mBuildFolderChecked)
        {
                QString bundlePath = DataLocations::getBundlePath();

                //Check if cxConfig.h file exists relative to the run application
                QString pathToConfigFile = bundlePath + "/../source/resource/core/settings/cxConfig.h";
                if (QFile(pathToConfigFile).exists())
                {
                        std::cout << "Using paths from build folder" << std::endl;
                        mRunFromBuildFolder = true;
                }
                else
                        mRunFromBuildFolder = false;
                mBuildFolderChecked = true;
        }

        return mRunFromBuildFolder;
}

} // namespace cx