<?php

if (!check_perms('users_mod')) {
    error(403);
}

if (!FEATURE_EMAIL_REENABLE) {
    // This feature is disabled
    header('Location: tools.php');
    error();
}

// Silence undefined variable warnings
foreach (array('username', 'ip', 'submitted_between', 'submitted_between', 'submitted_timestamp1', 'submitted_timestamp2', 'handled_username', 'handled_between', 'handled_timestamp1', 'handled_timestamp2', 'outcome_search', 'order', 'way') as $S) {
    if (!isset($_GET[$S])) {
        $_GET[$S] = null;
    }
}

View::show_header('Enable Requests', 'enable_requests');

// Pagination
$RequestsPerPage = 25;
list($Page, $Limit) = Format::page_limit($RequestsPerPage);

// How can things be ordered?
$OrderBys = array(
    'submitted_timestamp' => 'uer.`Timestamp`',
    'outcome' => 'uer.`Outcome`',
    'handled_timestamp' => 'uer.`HandledTimestamp`');

$Where = [];
$Joins = [];

// Default orderings
$OrderBy = "uer.`Timestamp`";
$OrderWay = "DESC";

// Build query for different views
// TODO: Work with encrypted values
if (!isset($_GET['view'])) {
    $_GET['view'] = 'main';
}

switch ($_GET['view']) {
    case 'perfect':
        $Where[] = "um.`Email` = uer.`Email`";
        $Joins[] = "JOIN `users_main` um ON um.`ID` = uer.`UserID`";
        $Where[] = "uer.`IP` = (SELECT `IP` FROM `users_history_ips` uhi1 WHERE uhi1.`StartTime` = (SELECT MAX(`StartTime`) FROM `users_history_ips` uhi2 WHERE uhi2.`UserID` = uer.`UserID` ORDER BY `StartTime` DESC LIMIT 1))";
        $Where[] = "(SELECT 1 FROM `users_history_ips` uhi WHERE uhi.`IP` = uer.`IP` AND uhi.`UserID` != uer.`UserID`) IS NULL";
        $Where[] = "ui.`BanReason` = '3'";
        break;

    case 'minus_ip':
        $Where[] = "um.`Email` = uer.`Email`";
        $Joins[] = "JOIN `users_main` um ON um.`ID` = uer.`UserID`";
        $Where[] = "ui.`BanReason` = '3'";
        break;

    case 'invalid_email':
        $Joins[] = "JOIN `users_main` um ON um.`ID` = uer.`UserID`";
        $Where[] = "um.`Email` != uer.`Email`";
        break;

    case 'ip_overlap':
        $Joins[] = "JOIN `users_history_ips` uhi ON uhi.`IP` = uer.`IP` AND uhi.`UserID` != uer.`UserID`";
        break;

    case 'manual_disable':
        $Where[] = "ui.`BanReason` != '3'";
        break;

    default:
        $Joins[] = '';
        break;
}
// End views

// Build query further based on search
if (isset($_GET['search'])) {
    $Username = db_string($_GET['username']);
    $IP = db_string($_GET['ip']);
    $SubmittedBetween = db_string($_GET['submitted_between']);
    $SubmittedTimestamp1 = db_string($_GET['submitted_timestamp1']);
    $SubmittedTimestamp2 = db_string($_GET['submitted_timestamp2']);
    $HandledUsername = db_string($_GET['handled_username']);
    $HandledBetween = db_string($_GET['handled_between']);
    $HandledTimestamp1 = db_string($_GET['handled_timestamp1']);
    $HandledTimestamp2 = db_string($_GET['handled_timestamp2']);
    $OutcomeSearch = (int) $_GET['outcome_search'];
    $Checked = (isset($_GET['show_checked']));

    if (array_key_exists($_GET['order'], $OrderBys)) {
        $OrderBy = $OrderBys[$_GET['order']];
    }

    if ($_GET['way'] === 'asc' || $_GET['way'] === 'desc') {
        $OrderWay = $_GET['way'];
    }

    if (!empty($Username)) {
        $Joins[] = "JOIN `users_main` um1 ON um1.`ID` = uer.`UserID`";
    }

    if (!empty($HandledUsername)) {
        $Joins[] = "JOIN `users_main` um2 ON um2.`ID` = uer.`CheckedBy`";
    }

    $Where = array_merge($Where, AutoEnable::build_search_query(
        $Username,
        $IP,
        $SubmittedBetween,
        $SubmittedTimestamp1,
        $SubmittedTimestamp2,
        $HandledUsername,
        $HandledBetween,
        $HandledTimestamp1,
        $HandledTimestamp2,
        $OutcomeSearch,
        $Checked
    ));
}
// End search queries

$ShowChecked = (isset($Checked) && $Checked) || !empty($HandledUsername) || !empty($HandledTimestamp1) || !empty($OutcomeSearch);

if (!$ShowChecked || count($Where) === 0) {
    // If no search is entered, add this to the query to only show unchecked requests
    $Where[] = '`Outcome` IS NULL';
}

$QueryID = $DB->query("
SELECT SQL_CALC_FOUND_ROWS
  uer.`ID`,
  uer.`UserID`,
  uer.`Email`,
  uer.`IP`,
  uer.`UserAgent`,
  uer.`Timestamp`,
  ui.`BanReason`,
  uer.`CheckedBy`,
  uer.`HandledTimestamp`,
  uer.`Outcome`
FROM
  `users_enable_requests` AS uer
JOIN `users_info` ui ON
  ui.`UserID` = uer.`UserID` ".implode(' ', $Joins)."
WHERE
  ".implode(' AND ', $Where)."
ORDER BY
  $OrderBy $OrderWay
LIMIT
  $Limit
");

$DB->query("SELECT FOUND_ROWS()");
list($NumResults) = $DB->next_record();
$DB->set_query_id($QueryID);
?>

<div class="header">
    <h2>Auto-Enable Requests</h2>
</div>

<div align="center">
    <a class="brackets tooltip" href="tools.php?action=enable_requests" title="Default view">Main</a>

    <a class="brackets tooltip"
        href="tools.php?action=enable_requests&amp;view=perfect&amp;<?=Format::get_url(array('view', 'action'))?>"
        title="Valid username, matching email, current IP with no matches, and inactivity disabled">Perfect</a>

    <a class="brackets tooltip"
        href="tools.php?action=enable_requests&amp;view=minus_ip&amp;<?=Format::get_url(array('view', 'action'))?>"
        title="Valid username, matching email, and inactivity disabled">Perfect Minus IP</a>

    <a class="brackets tooltip"
        href="tools.php?action=enable_requests&amp;view=invalid_email&amp;<?=Format::get_url(array('view', 'action'))?>"
        title="Non-matching email address">Invalid Email</a>

    <a class="brackets tooltip"
        href="tools.php?action=enable_requests&amp;view=ip_overlap&amp;<?=Format::get_url(array('view', 'action'))?>"
        title="Requests with IP matches to other accounts">IP Overlap</a>

    <a class="brackets tooltip"
        href="tools.php?action=enable_requests&amp;view=manual_disable&amp;<?=Format::get_url(array('view', 'action'))?>"
        title="Requests for accounts that were not disabled for inactivity">Manual Disable</a>

    <a class="brackets tooltip" title="Show/Hide Search" data-toggle-target="#search_form">Search</a>

    <a class="brackets tooltip" title="Show/Hide Search" data-toggle-target="#scores">Scores</a>
</div>

<div>
    <table id="scores" class="hidden" style="width: 50%; margin: 0 auto;">
        <tr>
            <th>Username</th>
            <th>Checked</th>
        </tr>

        <?php
        $DB->query("
        SELECT
          COUNT(`CheckedBy`),
          `CheckedBy`
        FROM
          `users_enable_requests`
        WHERE
          `CheckedBy` IS NOT NULL
        GROUP BY
          `CheckedBy`
        ORDER BY
          COUNT(`CheckedBy`)
        DESC
        LIMIT 50
        ");

        while (list($Checked, $UserID) = $DB->next_record()) { ?>
        <tr>
            <td>
                <?=Users::format_username($UserID)?>
            </td>

            <td>
                <?=$Checked?>
            </td>
        </tr>
        <?php
        }
    $DB->set_query_id($QueryID); ?>
    </table>

    <form action="" method="GET" id="search_form" <?=!isset($_GET['search']) ? 'class="hidden"' : ''?>>
        <input type="hidden" name="action" value="enable_requests" />

        <input type="hidden" name="view"
            value="<?=$_GET['view']?>" />

        <input type="hidden" name="search" value="1" />

        <table>
            <tr>
                <td class="label">Username</td>
                <td>
                    <input type="text" name="username"
                        value="<?=$_GET['username']?>" />
                </td>
            </tr>

            <tr>
                <td class="label">IP Address</td>
                <td>
                    <input type="text" name="ip"
                        value="<?=$_GET['ip']?>" />
                </td>
            </tr>

            <tr>
                <td class="label tooltip" title="This will search between the entered date and 24 hours after it">
                    Submitted Timestamp
                </td>
                <td>
                    <select name="submitted_between" onchange="ChangeDateSearch(this.value, 'submitted_timestamp2');">
                        <option value="on" <?=$_GET['submitted_between'] === 'on' ? 'selected' : ''?>>On
                        </option>

                        <option value="before" <?=$_GET['submitted_between'] === 'before' ? 'selected' : ''?>>Before
                        </option>

                        <option value="after" <?=$_GET['submitted_between'] === 'after' ? 'selected' : ''?>>After
                        </option>

                        <option value="between" <?=$_GET['submitted_between'] === 'between' ? 'selected' : ''?>>Between
                        </option>
                    </select>&nbsp;

                    <input type="date" name="submitted_timestamp1"
                        value="<?=$_GET['submitted_timestamp1']?>" />

                    <input type="date" id="submitted_timestamp2" name="submitted_timestamp2"
                        value="<?=$_GET['submitted_timestamp2']?>"
                        <?=$_GET['submitted_between'] !== 'between' ? 'style="display: none;"' : ''?>
                    />
                </td>
            </tr>

            <tr>
                <td class="label">Handled By Username</td>
                <td>
                    <input type="text" name="handled_username"
                        value="<?=$_GET['handled_username']?>" />
                </td>
            </tr>

            <tr>
                <td class="label tooltip" title="This will search between the entered date and 24 hours after it">
                    Handled Timestamp
                </td>
                <td>
                    <select name="handled_between" onchange="ChangeDateSearch(this.value, 'handled_timestamp2');">
                        <option value="on" <?=$_GET['handled_between'] === 'on' ? 'selected' : ''?>>On
                        </option>

                        <option value="before" <?=$_GET['handled_between'] === 'before' ? 'selected' : ''?>>Before
                        </option>

                        <option value="after" <?=$_GET['handled_between'] === 'after' ? 'selected' : ''?>>After
                        </option>

                        <option value="between" <?=$_GET['handled_between'] === 'between' ? 'selected' : ''?>>Between
                        </option>
                    </select>&nbsp;

                    <input type="date" name="handled_timestamp1"
                        value="<?=$_GET['handled_timestamp1']?>" />

                    <input type="date" id="handled_timestamp2" name="handled_timestamp2"
                        value="<?=$_GET['handled_timestamp2']?>"
                        <?=$_GET['handled_between'] !== 'between' ? 'style="display: none;"' : ''?>
                    />
                </td>
            </tr>

            <tr>
                <td class="label">Outcome</td>
                <td>
                    <select name="outcome_search">
                        <option value="">---</option>
                        <option value="<?=AutoEnable::APPROVED?>"
                            <?=$_GET['outcome_search'] === AutoEnable::APPROVED ? 'selected' : ''?>>Approved
                        </option>

                        <option value="<?=AutoEnable::DENIED?>"
                            <?=$_GET['outcome_search'] === AutoEnable::DENIED ? 'selected' : ''?>>Denied
                        </option>

                        <option value="<?=AutoEnable::DISCARDED?>"
                            <?=$_GET['outcome_search'] === AutoEnable::DISCARDED ? 'selected' : ''?>>Discarded
                        </option>
                    </select>
                </td>
            </tr>

            <tr>
                <td class="label">Include Checked</td>
                <td>
                    <input type="checkbox" name="show_checked" <?=isset($_GET['show_checked']) ? 'checked' : ''?>
                    />
                </td>
            </tr>

            <tr>
                <td class="label">Order By</td>
                <td>
                    <select name="order">
                        <option value="submitted_timestamp" <?=$_GET['order'] === 'submitted_timestamp' ? 'selected' : '' ?>>Submitted
                            Timestamp</option>

                        <option value="outcome" <?=$_GET['order'] === 'outcome' ? 'selected' : '' ?>>Outcome
                        </option>

                        <option value="handled_timestamp" <?=$_GET['order'] === 'handled_timestamp' ? 'selected' : '' ?>>Handled
                            Timestamp</option>
                    </select>&nbsp;

                    <select name="way">
                        <option value="asc" <?=$_GET['way'] === 'asc' ? 'selected' : '' ?>>Ascending
                        </option>

                        <option value="desc" <?=!isset($_GET['way']) || $_GET['way'] === 'desc' ? 'selected' : '' ?>>Descending
                        </option>
                    </select>
                </td>
            </tr>

            <tr>
                <td colspan=2>
                    <input type="submit" value="Search" />
                </td>
            </tr>
        </table>
    </form>
</div>

<?php
if ($NumResults > 0) { ?>
<div class="linkbox">
    <?php
    $Pages = Format::get_pages($Page, $NumResults, $RequestsPerPage);
    echo $Pages;
?>
</div>

<table width="100%">
    <tr class="colhead">
        <td class="center"><input type="checkbox" id="check_all" /></td>
        <td>
            Username
        </td>

        <td>
            Email Address
        </td>

        <td>
            IP Address
        </td>

        <td>
            User Agent
        </td>

        <td>
            Age
        </td>

        <td>
            Ban Reason
        </td>

        <td>
            Comment<?=$ShowChecked ? '/Checked By' : ''?>
        </td>

        <td>
            Submit<?=$ShowChecked ? '/Checked Date' : ''?>
        </td>

        <?php if ($ShowChecked) { ?>
        <td>
            Outcome
        </td>
        <?php } ?>
    </tr>

    <?php
    while (list($ID, $UserID, $Email, $IP, $UserAgent, $Timestamp, $BanReason, $CheckedBy, $HandledTimestamp, $Outcome) = $DB->next_record()) {
        ?>
    <tr class="row" id="row_<?=$ID?>">
        <td class="center">
            <?php if (!$HandledTimestamp) { ?>
            <input type="checkbox" id="multi" data-id="<?=$ID?>" />
            <?php } ?>
        </td>

        <td>
            <?=Users::format_username($UserID)?>
        </td>

        <td>
            <?=display_str(Crypto::decrypt($Email))?>
        </td>

        <td>
            <?=display_str(Crypto::decrypt($IP))?>
        </td>

        <td>
            <?=display_str($UserAgent)?>
        </td>

        <td>
            <?=time_diff($Timestamp)?>
        </td>

        <td>
            <?=($BanReason == 3) ? '<b>Inactivity</b>' : 'Other'?>
        </td>

        <?php if (!$HandledTimestamp) { ?>
        <td>
            <input class="inputtext" type="text" id="comment<?=$ID?>"
                placeholder="Comment" />
        </td>

        <td>
            <input type="submit" id="outcome" value="Approve"
                data-id="<?=$ID?>" />
            <input type="submit" id="outcome" value="Reject"
                data-id="<?=$ID?>" />
            <input type="submit" id="outcome" value="Discard"
                data-id="<?=$ID?>" />
        </td>
        <?php } else { ?>
        <td>
            <?=Users::format_username($CheckedBy);?>
        </td>

        <td>
            <?=$HandledTimestamp?>
        </td>
        <?php }

        if ($ShowChecked) { ?>
        <td>
            <?=AutoEnable::get_outcome_string($Outcome)?>
            <?php if ($Outcome === AutoEnable::DISCARDED) { ?>
            <a href="" id="unresolve" onclick="return false;" class="brackets"
                data-id="<?=$ID?>">Unresolve</a>
            <?php } ?>
        </td>
        <?php } ?>
    </tr>
    <?php
    }
    ?>
</table>

<div class="linkbox">
    <?php
    $Pages = Format::get_pages($Page, $NumResults, $RequestsPerPage);
    echo $Pages;
?>
</div>

<div style="padding-bottom: 11px;">
    <input type="submit" id="multi" value="Approve Selected" />
    <input type="submit" id="multi" value="Reject Selected" />
    <input type="submit" id="multi" value="Discard Selected" />
</div>
<?php } else { ?>
<h2>
    No new pending auto enable requests <?=($_GET['view'] === 'main') ? '' : ' in this view' ?>
</h2>
<?php }
View::show_footer();