<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */

/**
 * functions for displaying server status
 *
 * @usedby  server_status.php
 *
 * @package PhpMyAdmin
 */
if (! defined('PHPMYADMIN')) {
    exit;
}

/**
 * Prints server status information: processes, connections and traffic
 *
 * @param PMA_ServerStatusData $ServerStatusData Server status data
 *
 * @return string
 */
function PMA_getHtmlForServerStatus($ServerStatusData)
{
    //display the server state General Information
    $retval  = PMA_getHtmlForServerStateGeneralInfo($ServerStatusData);

    //display the server state traffic information
    $retval .= PMA_getHtmlForServerStateTraffic($ServerStatusData);

    //display the server state connection information
    $retval .= PMA_getHtmlForServerStateConnections($ServerStatusData);

    // display replication information
    if ($GLOBALS['replication_info']['master']['status']
        || $GLOBALS['replication_info']['slave']['status']
    ) {
        $retval .= PMA_getHtmlForReplicationInfo();
    }

    return $retval;
}

/**
 * Prints server state General information
 *
 * @param PMA_ServerStatusData $ServerStatusData Server status data
 *
 * @return string
 */
function PMA_getHtmlForServerStateGeneralInfo($ServerStatusData)
{
    $start_time = $GLOBALS['dbi']->fetchValue(
        'SELECT UNIX_TIMESTAMP() - ' . $ServerStatusData->status['Uptime']
    );

    $retval  = '<h3>';
    $bytes_received = $ServerStatusData->status['Bytes_received'];
    $bytes_sent = $ServerStatusData->status['Bytes_sent'];
    $retval .= sprintf(
        __('Network traffic since startup: %s'),
        implode(
            ' ',
            PMA_Util::formatByteDown(
                $bytes_received + $bytes_sent,
                3,
                1
            )
        )
    );
    $retval .= '</h3>';
    $retval .= '<p>';
    $retval .= sprintf(
        __('This MySQL server has been running for %1$s. It started up on %2$s.'),
        PMA_Util::timespanFormat($ServerStatusData->status['Uptime']),
        PMA_Util::localisedDate($start_time)
    ) . "\n";
    $retval .= '</p>';

    return $retval;
}

/**
 * Returns HTML to display replication information
 *
 * @return string HTML on replication
 */
function PMA_getHtmlForReplicationInfo()
{
    $retval = '<p class="notice clearfloat">';
    if ($GLOBALS['replication_info']['master']['status']
        && $GLOBALS['replication_info']['slave']['status']
    ) {
        $retval .= __(
            'This MySQL server works as <b>master</b> and '
            . '<b>slave</b> in <b>replication</b> process.'
        );
    } elseif ($GLOBALS['replication_info']['master']['status']) {
        $retval .= __(
            'This MySQL server works as <b>master</b> '
            . 'in <b>replication</b> process.'
        );
    } elseif ($GLOBALS['replication_info']['slave']['status']) {
        $retval .= __(
            'This MySQL server works as <b>slave</b> '
            . 'in <b>replication</b> process.'
        );
    }
    $retval .= '</p>';

    /*
     * if the server works as master or slave in replication process,
     * display useful information
     */
    $retval .= '<hr class="clearfloat" />';
    $retval .= '<h3><a name="replication">';
    $retval .= __('Replication status');
    $retval .= '</a></h3>';
    foreach ($GLOBALS['replication_types'] as $type) {
        if (isset($GLOBALS['replication_info'][$type]['status'])
            && $GLOBALS['replication_info'][$type]['status']
        ) {
            $retval .= PMA_getHtmlForReplicationStatusTable($type);
        }
    }

    return $retval;
}

/**
 * Prints server state traffic information
 *
 * @param PMA_ServerStatusData $ServerStatusData Server status data
 *
 * @return string
 */
function PMA_getHtmlForServerStateTraffic($ServerStatusData)
{
    $hour_factor    = 3600 / $ServerStatusData->status['Uptime'];
    $retval  = '<table id="serverstatustraffic" class="data noclick">';
    $retval .= '<thead>';
    $retval .= '<tr>';
    $retval .= '<th>';
    $retval .= __('Traffic') . '&nbsp;';
    $retval .=  PMA_Util::showHint(
        __(
            'On a busy server, the byte counters may overrun, so those statistics '
            . 'as reported by the MySQL server may be incorrect.'
        )
    );
    $retval .= '</th>';
    $retval .= '<th>#</th>';
    $retval .= '<th>&oslash; ' . __('per hour') . '</th>';
    $retval .= '</tr>';
    $retval .= '</thead>';
    $retval .= '<tbody>';
    $retval .= '<tr class="odd">';
    $retval .= '<th class="name">' . __('Received') . '</th>';
    $retval .= '<td class="value">';
    $retval .= implode(
        ' ',
        PMA_Util::formatByteDown(
            $ServerStatusData->status['Bytes_received'], 3, 1
        )
    );
    $retval .= '</td>';
    $retval .= '<td class="value">';
    $retval .= implode(
        ' ',
        PMA_Util::formatByteDown(
            $ServerStatusData->status['Bytes_received'] * $hour_factor, 3, 1
        )
    );
    $retval .= '</td>';
    $retval .= '</tr>';
    $retval .= '<tr class="even">';
    $retval .= '<th class="name">' . __('Sent') . '</th>';
    $retval .= '<td class="value">';
    $retval .= implode(
        ' ',
        PMA_Util::formatByteDown(
            $ServerStatusData->status['Bytes_sent'], 3, 1
        )
    );
    $retval .= '</td>';
    $retval .= '<td class="value">';
    $retval .= implode(
        ' ',
        PMA_Util::formatByteDown(
            $ServerStatusData->status['Bytes_sent'] * $hour_factor, 3, 1
        )
    );
    $retval .= '</td>';
    $retval .= '</tr>';
    $retval .= '<tr class="odd">';
    $retval .= '<th class="name">' . __('Total') . '</th>';
    $retval .= '<td class="value">';
    $bytes_received = $ServerStatusData->status['Bytes_received'];
    $bytes_sent = $ServerStatusData->status['Bytes_sent'];
    $retval .= implode(
        ' ',
        PMA_Util::formatByteDown(
            $bytes_received + $bytes_sent, 3, 1
        )
    );
    $retval .= '</td>';
    $retval .= '<td class="value">';
    $bytes_received = $ServerStatusData->status['Bytes_received'];
    $bytes_sent = $ServerStatusData->status['Bytes_sent'];
    $retval .= implode(
        ' ',
        PMA_Util::formatByteDown(
            ($bytes_received + $bytes_sent) * $hour_factor, 3, 1
        )
    );
    $retval .= '</td>';
    $retval .= '</tr>';
    $retval .= '</tbody>';
    $retval .= '</table>';
    return $retval;
}

/**
 * Prints server state connections information
 *
 * @param PMA_ServerStatusData $ServerStatusData Server status data
 *
 * @return string
 */
function PMA_getHtmlForServerStateConnections($ServerStatusData)
{
    $hour_factor    = 3600 / $ServerStatusData->status['Uptime'];
    $retval  = '<table id="serverstatusconnections" class="data noclick">';
    $retval .= '<thead>';
    $retval .= '<tr>';
    $retval .= '<th>' . __('Connections') . '</th>';
    $retval .= '<th>#</th>';
    $retval .= '<th>&oslash; ' . __('per hour') . '</th>';
    $retval .= '<th>%</th>';
    $retval .= '</tr>';
    $retval .= '</thead>';
    $retval .= '<tbody>';
    $retval .= '<tr class="odd">';
    $retval .= '<th class="name">' . __('Max. concurrent connections') . '</th>';
    $retval .= '<td class="value">';
    $retval .= PMA_Util::formatNumber(
        $ServerStatusData->status['Max_used_connections'], 0
    );
    $retval .= '</td>';
    $retval .= '<td class="value">--- </td>';
    $retval .= '<td class="value">--- </td>';
    $retval .= '</tr>';
    $retval .= '<tr class="even">';
    $retval .= '<th class="name">' . __('Failed attempts') . '</th>';
    $retval .= '<td class="value">';
    $retval .= PMA_Util::formatNumber(
        $ServerStatusData->status['Aborted_connects'], 4, 1, true
    );
    $retval .= '</td>';
    $retval .= '<td class="value">';
    $retval .= PMA_Util::formatNumber(
        $ServerStatusData->status['Aborted_connects'] * $hour_factor, 4, 2, true
    );
    $retval .= '</td>';
    $retval .= '<td class="value">';
    if ($ServerStatusData->status['Connections'] > 0) {
        $abortNum = $ServerStatusData->status['Aborted_connects'];
        $connectNum = $ServerStatusData->status['Connections'];

        $retval .= PMA_Util::formatNumber(
            $abortNum * 100 / $connectNum,
            0, 2, true
        );
        $retval .= '%';
    } else {
        $retval .= '--- ';
    }
    $retval .= '</td>';
    $retval .= '</tr>';
    $retval .= '<tr class="odd">';
    $retval .= '<th class="name">' . __('Aborted') . '</th>';
    $retval .= '<td class="value">';
    $retval .= PMA_Util::formatNumber(
        $ServerStatusData->status['Aborted_clients'], 4, 1, true
    );
    $retval .= '</td>';
    $retval .= '<td class="value">';
    $retval .= PMA_Util::formatNumber(
        $ServerStatusData->status['Aborted_clients'] * $hour_factor, 4, 2, true
    );
    $retval .= '</td>';
    $retval .= '<td class="value">';
    if ($ServerStatusData->status['Connections'] > 0) {
        $abortNum = $ServerStatusData->status['Aborted_clients'];
        $connectNum = $ServerStatusData->status['Connections'];

        $retval .= PMA_Util::formatNumber(
            $abortNum * 100 / $connectNum,
            0, 2, true
        );
        $retval .= '%';
    } else {
        $retval .= '--- ';
    }
    $retval .= '</td>';
    $retval .= '</tr>';
    $retval .= '<tr class="even">';
    $retval .= '<th class="name">' . __('Total') . '</th>';
    $retval .= '<td class="value">';
    $retval .= PMA_Util::formatNumber(
        $ServerStatusData->status['Connections'], 4, 0
    );
    $retval .= '</td>';
    $retval .= '<td class="value">';
    $retval .= PMA_Util::formatNumber(
        $ServerStatusData->status['Connections'] * $hour_factor, 4, 2
    );
    $retval .= '</td>';
    $retval .= '<td class="value">';
    $retval .= PMA_Util::formatNumber(100, 0, 2);
    $retval .= '%</td>';
    $retval .= '</tr>';
    $retval .= '</tbody>';
    $retval .= '</table>';

    return $retval;
}