<?php

require_once 'Include/Config.php';
require_once 'Include/Functions.php';

use ChurchCRM\Authentication\AuthenticationManager;
use ChurchCRM\dto\SystemURLs;
use ChurchCRM\model\ChurchCRM\ListOption;
use ChurchCRM\Utils\InputUtils;
use ChurchCRM\Utils\RedirectUtils;

// Security: user must be allowed to edit records to use this page.
AuthenticationManager::redirectHomeIfFalse(AuthenticationManager::getCurrentUser()->isManageGroupsEnabled());

// Get the Group from the querystring
$iGroupID = InputUtils::legacyFilterInput($_GET['GroupID'], 'int');

// Get the group information
$sSQL = 'SELECT * FROM group_grp WHERE grp_ID = ' . $iGroupID;
$rsGroupInfo = RunQuery($sSQL);
extract(mysqli_fetch_array($rsGroupInfo));

// Abort if user tries to load with group having no special properties.
if ($grp_hasSpecialProps == false) {
    RedirectUtils::redirect('GroupView.php?GroupID=' . $iGroupID);
}

$sPageTitle = gettext('Group-Specific Properties Form Editor:') . '  ' . $grp_Name;

require_once 'Include/Header.php'; ?>

<div class="card card-body">

    <?php
    $bErrorFlag = false;
    $aNameErrors = [];
    $bNewNameError = false;
    $bDuplicateNameError = false;

    // Does the user want to save changes to text fields?
    if (isset($_POST['SaveChanges'])) {
        // Fill in the other needed property data arrays not gathered from the form submit
        $sSQL = 'SELECT prop_ID, prop_Field, type_ID, prop_Special, prop_PersonDisplay FROM groupprop_master WHERE grp_ID = ' . $iGroupID . ' ORDER BY prop_ID';
        $rsPropList = RunQuery($sSQL);
        $numRows = mysqli_num_rows($rsPropList);

        for ($row = 1; $row <= $numRows; $row++) {
            $aRow = mysqli_fetch_array($rsPropList, MYSQLI_BOTH);
            extract($aRow);

            $aFieldFields[$row] = $prop_Field;
            $aTypeFields[$row] = $type_ID;
            $aSpecialFields[$row] = $prop_Special;
            if (isset($prop_Special)) {
                $aSpecialFields[$row] = $prop_Special;
            } else {
                $aSpecialFields[$row] = 'NULL';
            }
        }

        for ($iPropID = 1; $iPropID <= $numRows; $iPropID++) {
            $aNameFields[$iPropID] = InputUtils::legacyFilterInput($_POST[$iPropID . 'name']);

            if (strlen($aNameFields[$iPropID]) === 0) {
                $aNameErrors[$iPropID] = true;
                $bErrorFlag = true;
            } else {
                $aNameErrors[$iPropID] = false;
            }

            $aDescFields[$iPropID] = InputUtils::legacyFilterInput($_POST[$iPropID . 'desc']);

            if (isset($_POST[$iPropID . 'special'])) {
                $aSpecialFields[$iPropID] = InputUtils::legacyFilterInput($_POST[$iPropID . 'special'], 'int');

                if ($aSpecialFields[$iPropID] == 0) {
                    $aSpecialErrors[$iPropID] = true;
                    $bErrorFlag = true;
                } else {
                    $aSpecialErrors[$iPropID] = false;
                }
            }

            if (isset($_POST[$iPropID . 'show'])) {
                $aPersonDisplayFields[$iPropID] = true;
            } else {
                $aPersonDisplayFields[$iPropID] = false;
            }
        }

        // If no errors, then update.
        if (!$bErrorFlag) {
            for ($iPropID = 1; $iPropID <= $numRows; $iPropID++) {
                if ($aPersonDisplayFields[$iPropID]) {
                    $temp = 'true';
                } else {
                    $temp = 'false';
                }

                $sSQL = "UPDATE groupprop_master
                    SET `prop_Name` = '" . $aNameFields[$iPropID] . "',
                        `prop_Description` = '" . $aDescFields[$iPropID] . "',
                        `prop_Special` = " . $aSpecialFields[$iPropID] . ",
                        `prop_PersonDisplay` = '" . $temp . "'
                    WHERE `grp_ID` = '" . $iGroupID . "' AND `prop_ID` = '" . $iPropID . "';";

                RunQuery($sSQL);
            }
        }
    } else {
        // Check if we're adding a field
        if (isset($_POST['AddField'])) {
            $newFieldType = InputUtils::legacyFilterInput($_POST['newFieldType'], 'int');
            $newFieldName = InputUtils::legacyFilterInput($_POST['newFieldName']);
            $newFieldDesc = InputUtils::legacyFilterInput($_POST['newFieldDesc']);

            if (strlen($newFieldName) === 0) {
                $bNewNameError = true;
            } else {
                $sSQL = 'SELECT prop_Name FROM groupprop_master WHERE grp_ID = ' . $iGroupID;
                $rsPropNames = RunQuery($sSQL);
                while ($aRow = mysqli_fetch_array($rsPropNames)) {
                    if ($aRow[0] == $newFieldName) {
                        $bDuplicateNameError = true;
                        break;
                    }
                }

                if (!$bDuplicateNameError) {
                    // Get the new prop_ID (highest existing plus one)
                    $sSQL = 'SELECT prop_ID    FROM groupprop_master WHERE grp_ID = ' . $iGroupID;
                    $rsPropList = RunQuery($sSQL);
                    $newRowNum = mysqli_num_rows($rsPropList) + 1;

                    // Find the highest existing field number in the group's table to determine the next free one.
                    // This is essentially an auto-incrementing system where deleted numbers are not re-used.
                    $tableName = 'groupprop_' . $iGroupID;

                    $fields = mysqli_query($cnInfoCentral, 'SELECT * FROM ' . $tableName);
                    $newFieldNum = mysqli_num_fields($fields);

                    // If we're inserting a new custom-list type field, create a new list and get its ID
                    if ($newFieldType == 12) {
                        // Get the first available lst_ID for insertion.  lst_ID 0-9 are reserved for permanent lists.
                        $sSQL = 'SELECT MAX(lst_ID) FROM list_lst';
                        $aTemp = mysqli_fetch_array(RunQuery($sSQL));
                        if ($aTemp[0] > 9) {
                            $newListID = $aTemp[0] + 1;
                        } else {
                            $newListID = 10;
                        }

                        // Insert into the lists table with an example option.
                        $listOption = new ListOption();
                        $listOption
                            ->setId($newListID)
                            ->setOptionId(1)
                            ->setOptionSequence(1)
                            ->setOptionName(gettext('Default Option'));
                        $listOption->save();

                        $newSpecial = "'$newListID'";
                    } else {
                        $newSpecial = 'NULL';
                    }

                    // Insert into the master table
                    $sSQL = "INSERT INTO `groupprop_master`
                            ( `grp_ID` , `prop_ID` , `prop_Field` , `prop_Name` , `prop_Description` , `type_ID` , `prop_Special` )
                            VALUES ('" . $iGroupID . "', '" . $newRowNum . "', 'c" . $newFieldNum . "', '" . $newFieldName . "', '" . $newFieldDesc . "', '" . $newFieldType . "', $newSpecial);";
                    RunQuery($sSQL);

                    // Insert into the group-specific properties table
                    $sSQL = 'ALTER TABLE `groupprop_' . $iGroupID . '` ADD `c' . $newFieldNum . '` ';

                    switch ($newFieldType) {
                        case 1:
                            $sSQL .= "ENUM('false', 'true')";
                            break;
                        case 2:
                            $sSQL .= 'DATE';
                            break;
                        case 3:
                            $sSQL .= 'VARCHAR(50)';
                            break;
                        case 4:
                            $sSQL .= 'VARCHAR(100)';
                            break;
                        case 5:
                            $sSQL .= 'TEXT';
                            break;
                        case 6:
                            $sSQL .= 'YEAR';
                            break;
                        case 7:
                            $sSQL .= "ENUM('winter', 'spring', 'summer', 'fall')";
                            break;
                        case 8:
                            $sSQL .= 'INT';
                            break;
                        case 9:
                            $sSQL .= 'MEDIUMINT(9)';
                            break;
                        case 10:
                            $sSQL .= 'DECIMAL(10,2)';
                            break;
                        case 11:
                            $sSQL .= 'VARCHAR(30)';
                            break;
                        case 12:
                            $sSQL .= 'TINYINT(4)';
                    }

                    $sSQL .= ' DEFAULT NULL ;';
                    RunQuery($sSQL);

                    $bNewNameError = false;
                }
            }
        }

        // Get data for the form as it now exists..
        $sSQL = 'SELECT * FROM groupprop_master WHERE grp_ID = ' . $iGroupID . ' ORDER BY prop_ID';

        $rsPropList = RunQuery($sSQL);
        $numRows = mysqli_num_rows($rsPropList);

        // Create arrays of the properties.
        for ($row = 1; $row <= $numRows; $row++) {
            $aRow = mysqli_fetch_array($rsPropList, MYSQLI_BOTH);
            extract($aRow);

            // This is probably more clear than using a multi-dimensional array
            $aNameFields[$row] = $prop_Name;
            $aDescFields[$row] = $prop_Description;
            $aSpecialFields[$row] = $prop_Special;
            $aFieldFields[$row] = $prop_Field;
            $aTypeFields[$row] = $type_ID;
            $aPersonDisplayFields[$row] = ($prop_PersonDisplay == 'true');
        }
    }

    // Construct the form
    ?>

    <form method="post" action="GroupPropsFormEditor.php?GroupID=<?= $iGroupID ?>" name="GroupPropFormEditor">

        <div class="table-responsive">
            <table class="table">

                <?php
                if ($numRows == 0) {
                    ?>
                    <center>
                        <h2><?= gettext('No properties have been added yet') ?></h2>
                    </center>
                    <?php
                } else {
                    ?>
                    <tr>
                        <td colspan="7">
                            <center><b><?= gettext("Warning: Field changes will be lost if you do not 'Save Changes' before using an up, down, delete, or 'add new' button!") ?></b></center>
                        </td>
                    </tr>

                    <tr>
                        <td colspan="7" align="center">
                            <?php
                            if ($bErrorFlag) {
                                echo '<span class="LargeText" style="color: red;">' . gettext('Invalid fields or selections. Changes not saved! Please correct and try again!') . '</span>';
                            } ?>
                        </td>
                    </tr>

                    <tr>
                        <th></th>
                        <th></th>
                        <th><?= gettext('Type') ?></th>
                        <th><?= gettext('Name') ?></th>
                        <th><?= gettext('Description') ?></th>
                        <th><?= gettext('Special option') ?></th>
                        <th><?= gettext('Show in') ?><br><?= gettext('Person View') ?></th>
                    </tr>

                    <?php

                    for ($row = 1; $row <= $numRows; $row++) {
                        ?>
                        <tr>
                            <td class="LabelColumn">
                                <h2><b><?= $row ?></b></h2>
                            </td>
                            <td class="TextColumn" width="5%" nowrap>
                                <?php
                                if ($row != 1) {
                                    echo "<a href=\"GroupPropsFormRowOps.php?GroupID=$iGroupID&PropID=$row&Field=" . $aFieldFields[$row] . '&Action=up"><i class="fa fa-arrow-up"></i></a>';
                                }
                                if ($row < $numRows) {
                                    echo "<a href=\"GroupPropsFormRowOps.php?GroupID=$iGroupID&PropID=$row&Field=" . $aFieldFields[$row] . '&Action=down"><i class="fa fa-arrow-down"></i></a>';
                                } ?>

                                <?= "<a href=\"GroupPropsFormRowOps.php?GroupID=$iGroupID&PropID=$row&Field=$aFieldFields[$row]&Action=delete\"><i class='fa fa-times' ></i></a>"; ?>
                            </td>
                            <td class="TextColumn" style="font-size:70%;">
                                <?= $aPropTypes[$aTypeFields[$row]]; ?>
                            </td>

                            <td class="TextColumn"><input type="text" name="<?= $row ?>name" value="<?= htmlentities(stripslashes($aNameFields[$row]), ENT_NOQUOTES, 'UTF-8') ?>" size="25" maxlength="40">
                                <?php
                                if (array_key_exists($row, $aNameErrors) && $aNameErrors[$row]) {
                                    echo '<span style="color: red;"><BR>' . gettext('You must enter a name') . ' </span>';
                                } ?>
                            </td>

                            <td class="TextColumn"><textarea name="<?= $row ?>desc" cols="30" rows="1" onKeyPress="LimitTextSize(this,60)"><?= htmlentities(stripslashes($aDescFields[$row]), ENT_NOQUOTES, 'UTF-8') ?></textarea></td>

                            <td class="TextColumn">
                                <?php

                                if ($aTypeFields[$row] == 9) {
                                    echo '<select name="' . $row . 'special">';
                                    echo '<option value="0" selected>' . gettext('Select a group') . '</option>';

                                    $sSQL = 'SELECT grp_ID,grp_Name FROM group_grp ORDER BY grp_Name';

                                    $rsGroupList = RunQuery($sSQL);

                                    while ($aRow = mysqli_fetch_array($rsGroupList)) {
                                        extract($aRow);

                                        echo '<option value="' . $grp_ID . '"';
                                        if ($aSpecialFields[$row] == $grp_ID) {
                                            echo ' selected';
                                        }
                                        echo '>' . $grp_Name;
                                    }

                                    echo '</select>';

                                    if ($aSpecialErrors[$row]) {
                                        echo '<span style="color: red;"><BR>' . gettext('You must select a group.') . '</span>';
                                    }
                                } elseif ($aTypeFields[$row] == 12) {
                                    echo "<a href=\"javascript:void(0)\" onClick=\"Newwin=window.open('OptionManager.php?mode=groupcustom&ListID=$aSpecialFields[$row]','Newwin','toolbar=no,status=no,width=400,height=500')\">Edit List Options</a>";
                                } else {
                                    echo '&nbsp;';
                                } ?></td>

                            <td class="TextColumn">
                                <input type="checkbox" name="<?= $row ?>show" value="1" <?php if ($aPersonDisplayFields[$row]) {
                                                                                            echo ' checked';
                                                             } ?>>
                            </td>
                        </tr>
                        <?php
                    } ?>

                    <tr>
                        <td colspan="7">
                            <table width="100%">
                                <tr>
                                    <td width="30%"></td>
                                    <td width="40%" align="center" valign="bottom">
                                        <input type="submit" class="btn btn-default" value="<?= gettext('Save Changes') ?>" Name="SaveChanges">
                                    </td>
                                    <td width="30%"></td>
                                </tr>
                            </table>
                        </td>
                        <td>
                    </tr>
                    <?php
                } ?>
                <tr>
                    <td colspan="7">
                        <hr>
                    </td>
                </tr>
                <tr>
                    <td colspan="7">
                        <table width="100%">
                            <tr>
                                <td width="15%"></td>
                                <td valign="top">
                                    <div><?= gettext('Type') ?>:</div>
                                    <?php
                                    echo '<select name="newFieldType">';
                                    for ($iOptionID = 1; $iOptionID <= count($aPropTypes); $iOptionID++) {
                                        echo '<option value="' . $iOptionID . '"';
                                        echo '>' . $aPropTypes[$iOptionID];
                                    }
                                    echo '</select>';
                                    ?><BR>
                                    <a href="<?= SystemURLs::getSupportURL() ?>"><?= gettext('Help on types..') ?></a>
                                </td>
                                <td valign="top">
                                    <div><?= gettext('Name') ?>:</div>
                                    <input type="text" name="newFieldName" size="25" maxlength="40">
                                    <?php
                                    if ($bNewNameError) {
                                        echo '<div><span style="color: red;"><BR>' . gettext('You must enter a name') . '</span></div>';
                                    }
                                    if ($bDuplicateNameError) {
                                        echo '<div><span style="color: red;"><BR>' . gettext('That field name already exists.') . '</span></div>';
                                    }
                                    ?>
                                    &nbsp;
                                </td>
                                <td valign="top">
                                    <div><?= gettext('Description') ?>:</div>
                                    <input type="text" name="newFieldDesc" size="30" maxlength="60">
                                    &nbsp;
                                </td>
                                <td>
                                    <input type="submit" class="btn btn-default" value="<?= gettext('Add New Field') ?>" Name="AddField">
                                </td>
                                <td width="15%"></td>
                            </tr>
                        </table>
                    </td>
                </tr>

            </table>
        </div>
    </form>
</div>
<?php
require_once 'Include/Footer.php';
