/*
 * Copyright (c) 2013-2015, dennis wang
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "util.h"

namespace klogger {

void split(const std::string& src, const std::string& delim, std::vector<std::string>& result) {
    result.clear();
    if (src.empty() || delim.empty()) {
        return;
    }
    size_t end = 0;
    size_t begin = 0;
    std::string substr;
    while (end != std::string::npos) {
        end = src.find(delim, begin);
        if (end != std::string::npos) {
            substr = src.substr(begin, end - begin);
        } else {
            substr = src.substr(begin, std::string::npos);
        }
        if (!substr.empty() && (substr != delim)) {
            result.push_back(substr);
        }
        begin = end + delim.size();
    }
}

#ifdef WIN32
int gettimeofday(struct timeval *tp, void *tzp) {
    (void)tzp;
    time_t clock;
    struct tm tm;
    SYSTEMTIME wtm;
    GetLocalTime(&wtm);
    tm.tm_year  = wtm.wYear - 1900;
    tm.tm_mon   = wtm.wMonth - 1;
    tm.tm_mday  = wtm.wDay;
    tm.tm_hour  = wtm.wHour;
    tm.tm_min   = wtm.wMinute;
    tm.tm_sec   = wtm.wSecond;
    tm.tm_isdst = -1;
    clock = mktime(&tm);
    tp->tv_sec = (long)clock;
    tp->tv_usec = wtm.wMilliseconds * 1000;
    return (0);
}
#endif // _WINDOWS

void getDateTime(timeval* tp, tm* t) {
    time_t timestamp = time(0);
    gettimeofday(tp, 0);
#ifdef WIN32
    localtime_s(t, &timestamp);
#else
    localtime_r(&timestamp, t);
#endif // WIN32
}

void sleep(int ms) {
#   ifdef WIN32
    Sleep(ms);
#   else
    usleep(ms * 1000);
#   endif // WIN32
}

const std::string& getLevelString(int level) {
    static const std::string VERBOSE_STRING     = "[verb]";
    static const std::string INFORMATION_STRING = "[info]";
    static const std::string DEBUG_STRING       = "[debu]";
    static const std::string WARNING_STRING     = "[warn]";
    static const std::string EXCEPTION_STRING   = "[exce]";
    static const std::string FAILURE_STRING     = "[fail]";
    static const std::string FATAL_STRING       = "[fata]";
    static const std::string STAT_STRING        = "[stat]";
    static const std::string UNKNOWN_STRING     = "[unkn]";

    switch (level) {
        case Logger::VERBOSE:
            return VERBOSE_STRING;
        case Logger::INFORMATION:
            return INFORMATION_STRING;
        case Logger::DIAGNOSE:
            return DEBUG_STRING;
        case Logger::WARNING:
            return WARNING_STRING;
        case Logger::EXCEPTION:
            return EXCEPTION_STRING;
        case Logger::FAILURE:
            return FAILURE_STRING;
        case Logger::FATAL:
            return FATAL_STRING;
        case Logger::STAT:
            return STAT_STRING;
        default:
            break;
    }

    return UNKNOWN_STRING;
}

}