/*
 * Copyright (C) 2005-2012 MaNGOS <http://getmangos.com/>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <stdio.h>

#include "ProgressBar.h"
#include "Errors.h"

bool BarGoLink::m_showOutput = true;

char const* const BarGoLink::empty = " ";
#ifdef _WIN32
char const* const BarGoLink::full  = "\x3D";
#else
char const* const BarGoLink::full  = "*";
#endif

BarGoLink::BarGoLink(int row_count)
{
    init(row_count);
}

BarGoLink::BarGoLink(uint32 row_count)
{
    MANGOS_ASSERT(row_count < (uint32)ACE_INT32_MAX);
    init((int)row_count);
}

BarGoLink::BarGoLink(uint64 row_count)
{
    MANGOS_ASSERT(row_count < (uint64)ACE_INT32_MAX);
    init((int)row_count);
}

BarGoLink::~BarGoLink()
{
    if (!m_showOutput)
        return;

    printf("\n");
    fflush(stdout);
}

void BarGoLink::init(int row_count)
{
    rec_no    = 0;
    rec_pos   = 0;
    indic_len = 50;
    num_rec   = row_count;

    if (!m_showOutput)
        return;

#ifdef _WIN32
    printf("\x3D");
#else
    printf("[");
#endif
    for (int i = 0; i < indic_len; ++i) printf(empty);
#ifdef _WIN32
    printf("\x3D 0%%\r\x3D");
#else
    printf("] 0%%\r[");
#endif
    fflush(stdout);
}

void BarGoLink::step()
{
    if (!m_showOutput)
        return;

    int i, n;

    if (num_rec == 0) return;
    ++rec_no;
    n = rec_no * indic_len / num_rec;
    if (n != rec_pos)
    {
#ifdef _WIN32
        printf("\r\x3D");
#else
        printf("\r[");
#endif
        for (i = 0; i < n; ++i) printf(full);
        for (; i < indic_len; ++i) printf(empty);
        float percent = (((float)n / (float)indic_len) * 100);
#ifdef _WIN32
        printf("\x3D %i%%  \r\x3D", (int)percent);
#else
        printf("] %i%%  \r[", (int)percent);
#endif
        fflush(stdout);

        rec_pos = n;
    }
}

// avoid use inline version because linking problems with private static field
void BarGoLink::SetOutputState(bool on)
{
    m_showOutput = on;
}