/**
 * @file lldir_mac.cpp
 * @brief Implementation of directory utilities for macOS
 *
 * $LicenseInfo:firstyear=2002&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#if LL_DARWIN

#include "linden_common.h"

#include "lldir_mac.h"
#include "llerror.h"
#include "llrand.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <glob.h>
#include <boost/filesystem.hpp>
#include "lldir_utils_objc.h"

// --------------------------------------------------------------------------------

static bool CreateDirectory(const std::string &parent,
                            const std::string &child,
                            std::string *fullname)
{

    boost::filesystem::path p(parent);
    p /= child;

    if (fullname)
        *fullname = std::string(p.string());

    if (! boost::filesystem::create_directory(p))
    {
        return (boost::filesystem::is_directory(p));
    }
    return true;
}

// --------------------------------------------------------------------------------

LLDir_Mac::LLDir_Mac()
{
    mDirDelimiter = "/";

    const std::string     secondLifeString = "Megapahit";

    std::string executablepathstr = getSystemExecutableFolder();

    //NOTE:  LLINFOS/LLERRS will not output to log here.  The streams are not initialized.

    if (!executablepathstr.empty())
    {
        // mExecutablePathAndName
        mExecutablePathAndName = executablepathstr;

        boost::filesystem::path executablepath(executablepathstr);

# ifndef BOOST_SYSTEM_NO_DEPRECATED
#endif
        mExecutableFilename = executablepath.filename().string();
        mExecutableDir = executablepath.parent_path().string();

        // mAppRODataDir
        std::string resourcepath = getSystemResourceFolder();
        mAppRODataDir = resourcepath;

        // *NOTE: When running in a dev tree, use the copy of
        // skins in indra/newview/ rather than in the application bundle.  This
        // mirrors Windows dev environment behavior and allows direct checkin
        // of edited skins/xui files. JC

        // MBW -- This keeps the mac application from finding other things.
        // If this is really for skins, it should JUST apply to skins.

        std::string::size_type build_dir_pos = mExecutableDir.rfind("/build-darwin-");
        if (build_dir_pos != std::string::npos)
        {
            // ...we're in a dev checkout
            mSkinBaseDir = mExecutableDir.substr(0, build_dir_pos)
                + "/indra/newview/skins";
            LL_INFOS() << "Running in dev checkout with mSkinBaseDir "
                << mSkinBaseDir << LL_ENDL;
        }
        else
        {
            // ...normal installation running
            mSkinBaseDir = mAppRODataDir + mDirDelimiter + "skins";
        }

        // mOSUserDir
        std::string appdir = getSystemApplicationSupportFolder();
        std::string rootdir;

        //Create root directory
        if (CreateDirectory(appdir, secondLifeString, &rootdir))
        {

            // Save the full path to the folder
            mOSUserDir = rootdir;

            // Create our sub-dirs
            CreateDirectory(rootdir, std::string("data"), NULL);
            CreateDirectory(rootdir, std::string("logs"), NULL);
            CreateDirectory(rootdir, std::string("user_settings"), NULL);
            CreateDirectory(rootdir, std::string("browser_profile"), NULL);
        }

        //mOSCacheDir
        std::string cachedir =  getSystemCacheFolder();
        if (!cachedir.empty())
        {
            mOSCacheDir = cachedir;
            //TODO:  This changes from ~/Library/Cache/Secondlife to ~/Library/Cache/com.app.secondlife/Secondlife.  Last dir level could go away.
            CreateDirectory(mOSCacheDir, secondLifeString, NULL);
        }

        // mOSUserAppDir
        mOSUserAppDir = mOSUserDir;

        // mTempDir
        //Aura 120920 boost::filesystem::temp_directory_path() not yet implemented on mac. :(
        std::string tmpdir = getSystemTempFolder();
        if (!tmpdir.empty())
        {
            CreateDirectory(tmpdir, secondLifeString, &mTempDir);
        }

        mWorkingDir = getCurPath();

        mLLPluginDir = mAppRODataDir + mDirDelimiter + "llplugin";
    }
}

LLDir_Mac::~LLDir_Mac()
{
}

// Implementation


void LLDir_Mac::initAppDirs(const std::string &app_name,
                            const std::string& app_read_only_data_dir)
{
    // Allow override so test apps can read newview directory
    if (!app_read_only_data_dir.empty())
    {
        mAppRODataDir = app_read_only_data_dir;
        mSkinBaseDir = add(mAppRODataDir, "skins");
    }
    mCAFile = add(mAppRODataDir, "ca-bundle.crt");
}

std::string LLDir_Mac::getCurPath()
{
    return boost::filesystem::path( boost::filesystem::current_path() ).string();
}



bool LLDir_Mac::fileExists(const std::string &filename) const
{
    return boost::filesystem::exists(filename);
}


/*virtual*/ std::string LLDir_Mac::getLLPluginLauncher()
{
    return gDirUtilp->getAppRODataDir() + gDirUtilp->getDirDelimiter() +
        "SLPlugin.app/Contents/MacOS/SLPlugin";
}

/*virtual*/ std::string LLDir_Mac::getLLPluginFilename(std::string base_name)
{
    return gDirUtilp->getLLPluginDir() + gDirUtilp->getDirDelimiter() +
        base_name + ".dylib";
}


#endif // LL_DARWIN