/*
 * synergy -- mouse and keyboard sharing utility
 * Copyright (C) 2012-2016 Symless Ltd.
 * Copyright (C) 2002 Chris Schoeneman
 * 
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file LICENSE that should have accompanied this file.
 * 
 * This package 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "arch/unix/ArchFileUnix.h"

#include <stdio.h>
#include <unistd.h>
#include <pwd.h>
#include <sys/types.h>
#include <cstring>

//
// ArchFileUnix
//

ArchFileUnix::ArchFileUnix()
{
    // do nothing
}

ArchFileUnix::~ArchFileUnix()
{
    // do nothing
}

const char*
ArchFileUnix::getBasename(const char* pathname)
{
    if (pathname == NULL) {
        return NULL;
    }

    const char* basename = strrchr(pathname, '/');
    if (basename != NULL) {
        return basename + 1;
    }
    else {
        return pathname;
    }
}

std::string
ArchFileUnix::getUserDirectory()
{
    char* buffer = NULL;
    std::string dir;
#if HAVE_GETPWUID_R
    struct passwd pwent;
    struct passwd* pwentp {};
#if defined(_SC_GETPW_R_SIZE_MAX)
    long size = sysconf(_SC_GETPW_R_SIZE_MAX);
    if (size == -1) {
        size = BUFSIZ;
    }
#else
    long size = BUFSIZ;
#endif
    buffer = new char[size];
    getpwuid_r(getuid(), &pwent, buffer, size, &pwentp);
#else
    struct passwd* pwentp = getpwuid(getuid());
#endif
    if (pwentp != NULL && pwentp->pw_dir != NULL) {
        dir = pwentp->pw_dir;
    }
    delete[] buffer;
    return dir;
}

std::string
ArchFileUnix::getSystemDirectory()
{
    return "/etc";
}

std::string
ArchFileUnix::getInstalledDirectory()
{
#if WINAPI_XWINDOWS
    return "/usr/bin";
#else
    return "/Applications/Synergy.app/Contents/MacOS";
#endif
}

std::string
ArchFileUnix::getLogDirectory()
{
    return "/var/log";
}

std::string
ArchFileUnix::getPluginDirectory()
{
    if (!m_pluginDirectory.empty()) {
        return m_pluginDirectory;
    }

#if WINAPI_XWINDOWS
    return getProfileDirectory().append("/plugins");
#else
    return getProfileDirectory().append("/Plugins");
#endif
}

std::string
ArchFileUnix::getProfileDirectory()
{
    String dir;
    if (!m_profileDirectory.empty()) {
        dir = m_profileDirectory;
    }
    else {
#if WINAPI_XWINDOWS
        dir = getUserDirectory().append("/.synergy");
#else
        dir = getUserDirectory().append("/Library/Synergy");
#endif
    }
    return dir;

}

std::string
ArchFileUnix::concatPath(const std::string& prefix,
                const std::string& suffix)
{
    std::string path;
    path.reserve(prefix.size() + 1 + suffix.size());
    path += prefix;
    if (path.size() == 0 || path[path.size() - 1] != '/') {
        path += '/';
    }
    path += suffix;
    return path;
}

void
ArchFileUnix::setProfileDirectory(const String& s)
{
    m_profileDirectory = s;
}

void
ArchFileUnix::setPluginDirectory(const String& s)
{
    m_pluginDirectory = s;
}
