<?php

/*
+---------------------------------------------------------------------------+
| Revive Adserver                                                           |
| http://www.revive-adserver.com                                            |
|                                                                           |
| Copyright: See the COPYRIGHT.txt file.                                    |
| License: GPLv2 or later, see the LICENSE.txt file.                        |
+---------------------------------------------------------------------------+
*/

// Require the initialisation file
require_once '../../init.php';

require_once MAX_PATH . '/www/admin/config.php';
require_once MAX_PATH . '/www/admin/lib-maintenance.inc.php';
require_once LIB_PATH . '/Extension/invocationTags/InvocationTagsOptions.php';

// Security check
OA_Permission::enforceAccount(OA_ACCOUNT_ADMIN);

/*-------------------------------------------------------*/
/* HTML framework                                        */
/*-------------------------------------------------------*/

phpAds_PageHeader("maintenance-index");
phpAds_MaintenanceSelection("encoding");

/*-------------------------------------------------------*/
/* Main code                                             */
/*-------------------------------------------------------*/

// Note: Taken from EncodingMigration.php (with the idfields and joinon arrays removed and updated for use with DataObjects)
/**
 * An array to hold all the tables and fields that should be converted
 *
 * @var array of arrays(
 *  'fields' => array: field names that should be converted,
 *  'idfields' => array: fields identifying the primary (multi?) key used for the WHERE clause on update
 *  'joinon' string: Identifies which field in the table should be used to build the join up (to get the agency ID where applicable)
 */
$aTableFields = [
    'acls' => [
        'fields' => ['data'],
        'idfields' => ['bannerid', 'executionorder'],
    ],
    'acls_channel' => [
        'fields' => ['data'],
        'idfields' => ['channelid', 'executionorder'],
    ],
    'affiliates' => [
        'fields' => ['name', 'mnemonic', 'comments', 'contact', 'email', 'website'],
        'idfields' => ['affiliateid'],
    ],
    'agency' => [
        'fields' => ['name', 'contact', 'email'],
        'idfields' => ['agencyid'],
    ],
    'application_variable' => [
        'fields' => ['name', 'value'],
        'idfields' => ['name'],
    ],
    'banners' => [
        'fields' => ['htmltemplate', 'htmlcache', 'target', 'url', 'alt', 'bannertext', 'description', 'append', 'comments', 'keyword', 'statustext'],
        'idfields' => ['bannerid'],
    ],
    'campaigns' => [
        'fields' => ['campaignname', 'comments'],
        'idfields' => ['campaignid'],
    ],
    'channel' => [
        'fields' => ['name', 'description', 'comments'],
        'idfields' => ['channelid'],
    ],
    'clients' => [
        'fields' => ['clientname', 'contact', 'email', 'comments'],
        'idfields' => ['clientid'],
    ],
    'tracker_append' => [
        'fields' => ['tagcode'],
        'idfields' => ['tracker_append_id'],
    ],
    'trackers' => [
        'fields' => ['trackername', 'description', 'appendcode'],
        'idfields' => ['trackerid'],
    ],
    'userlog' => [
        'fields' => ['details'],
        'idfields' => ['userlogid'],
    ],
    'users' => [
        'fields' => ['contact_name', 'email_address', 'comments'],
        'idfields' => ['user_id'],
    ],

    'variables' => [
        'fields' => ['name', 'description', 'variablecode'],
        'idfields' => ['variableid'],
    ],
    'zones' => [
        'fields' => ['zonename', 'description', 'prepend', 'append', 'comments', 'what'],
        'idfields' => ['zoneid'],
    ],
];

if (!empty($_POST['encConfirm'])) {
    OA_Permission::checkSessionToken();

    _iterateTableFields($aTableFields, true);
    Header("Location: maintenance-maintenance.php");
}

/**
 * This function iterates over the table fields, and either gathers data which would be changed, or changes the data
 *
 * @param array $aTableFields
 * @return array
 */
function _iterateTableFields($aTableFields, $execute = false)
{
    $aChanged = [];
    $encTo = (empty($_POST['encTo'])) ? 'UTF-8' : $_POST['encTo'];
    $encFrom = (empty($_POST['encFrom'])) ? 'UTF-8' : $_POST['encFrom'];

    foreach ($aTableFields as $table => $tableData) {
        $doTable = OA_Dal::factoryDO($table);
        $doTable->find();
        while ($doTable->fetch()) {
            $changed = false;
            foreach ($tableData['fields'] as $field) {
                $converted = MAX_commonConvertEncoding($doTable->$field, $encTo, $encFrom);
                if ($converted === $doTable->$field) {
                    continue;
                }
                $id = [];
                foreach ($tableData['idfields'] as $idField) {
                    $id[$idField] = $doTable->$idField;
                }
                if ($execute && !in_array(implode('.', $id), $_POST['aExecute'][$table][$field])) {
                    continue;
                }

                $aChanged[$table][$field][] = ['from' => $doTable->$field, 'to' => $converted, 'id' => $id];
                $doTable->$field = $converted;
                $changed = true;
            }
            if ($changed && $execute) {
                $doTable->update();
            }
        }
    }
    return $aChanged;
}
/*-------------------------------------------------------*/
/* HTML framework                                        */
/*-------------------------------------------------------*/

echo "<br />";
echo $strEncodingExplaination;
echo "<br /><br />";

phpAds_ShowBreak();
echo "<form action='maintenance-encoding.php' method='POST'>";
$oOptions = new Plugins_InvocationTagsOptions();
$aEncodings = $oOptions->_getAvailableCharsets();

$selectedFrom = (empty($_POST['encFrom'])) ? 'UTF-8' : $_POST['encFrom'];
$selectedTo = (empty($_POST['encTo'])) ? 'UTF-8' : $_POST['encTo'];

echo $strEncodingConvertFrom . " <select name='encFrom'>\n";
foreach ($aEncodings as $encCode => $encName) {
    $selected = ($encCode == $selectedFrom) ? " selected='selected'" : '';
    echo "    <option value='{$encCode}' {$selected}>{$encName}</option>\n";
}
echo "</select> ";

//echo $strEncodingConvertTo . " <select name='encTo'>\n";
//foreach ($aEncodings as $encCode => $encName) {
//    $selected = ($encCode == $selectedTo) ? " selected='selected'" : '';
//    echo "    <option value='{$encCode}' {$selected}>{$encName}</option>\n";
//}
//echo "</select> ";

echo "<input type='submit' name='encTest' value='{$strEncodingConvertTest}' />";

// Show the results of the encoding
if (!empty($_POST['encTest'])) {
    phpAds_ShowBreak();

    $aChanged = _iterateTableFields($aTableFields, false);

    echo "{$GLOBALS['strConvertThese']}<br /><br />
        <table border='1' padding='1'>
            <tr><th>{$GLOBALS['strInclude']}</th><th>{$GLOBALS['strFrom']}</th><th>" . ucfirst($GLOBALS['strTo']) . "</th></tr>\n";

    foreach ($aChanged as $table => $aFields) {
        foreach ($aFields as $field => $aItems) {
            foreach ($aItems as $idx => $aItem) {
                echo "<tr>
                            <td><input type='checkbox' name='aExecute[{$table}][{$field}][]' value='" . implode('.', $aItem['id']) . "' checked='checked' /></td>
                            <td>" . (htmlspecialchars($aItem['from'])) . "</td>
                            <td>" . (htmlspecialchars($aItem['to'])) . "</td>
                        </tr>\n";
            }
        }
    }
    echo "</table><br />";
    echo "<input type='hidden' name='token' value='" . htmlspecialchars(phpAds_SessionGetToken(), ENT_QUOTES) . "' />";
    echo "<input type='submit' name='encConfirm' value='{$GLOBALS['strConvert']}' /> <input type='button' name='encCancel' value='{$GLOBALS['strCancel']}' onclick='javascript:document.location = \"" . $_SERVER['SCRIPT_NAME'] . "\";' />";
}

phpAds_ShowBreak();

phpAds_PageFooter();
