<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Editor for Geometry data types.
 *
 * @package PhpMyAdmin
 */
declare(strict_types=1);

use PhpMyAdmin\Core;
use PhpMyAdmin\Gis\GisFactory;
use PhpMyAdmin\Gis\GisVisualization;
use PhpMyAdmin\Response;
use PhpMyAdmin\Template;
use PhpMyAdmin\Util;

require_once 'libraries/common.inc.php';

$template = new Template();

if (! isset($_REQUEST['field'])) {
    Util::checkParameters(['field']);
}

// Get data if any posted
$gis_data = [];
if (Core::isValid($_REQUEST['gis_data'], 'array')) {
    $gis_data = $_REQUEST['gis_data'];
}

$gis_types = [
    'POINT',
    'MULTIPOINT',
    'LINESTRING',
    'MULTILINESTRING',
    'POLYGON',
    'MULTIPOLYGON',
    'GEOMETRYCOLLECTION'
];

// Extract type from the initial call and make sure that it's a valid one.
// Extract from field's values if available, if not use the column type passed.
if (! isset($gis_data['gis_type'])) {
    if (isset($_REQUEST['type']) && $_REQUEST['type'] != '') {
        $gis_data['gis_type'] = mb_strtoupper($_REQUEST['type']);
    }
    if (isset($_REQUEST['value']) && trim($_REQUEST['value']) != '') {
        $start = (substr($_REQUEST['value'], 0, 1) == "'") ? 1 : 0;
        $gis_data['gis_type'] = mb_substr(
            $_REQUEST['value'],
            $start,
            mb_strpos($_REQUEST['value'], "(") - $start
        );
    }
    if ((! isset($gis_data['gis_type']))
        || (! in_array($gis_data['gis_type'], $gis_types))
    ) {
        $gis_data['gis_type'] = $gis_types[0];
    }
}
$geom_type = $gis_data['gis_type'];

// Generate parameters from value passed.
$gis_obj = GisFactory::factory($geom_type);
if (isset($_REQUEST['value'])) {
    $gis_data = array_merge(
        $gis_data,
        $gis_obj->generateParams($_REQUEST['value'])
    );
}

// Generate Well Known Text
$srid = (isset($gis_data['srid']) && $gis_data['srid'] != '') ? $gis_data['srid'] : 0;
$wkt = $gis_obj->generateWkt($gis_data, 0);
$wkt_with_zero = $gis_obj->generateWkt($gis_data, 0, '0');
$result = "'" . $wkt . "'," . $srid;

// Generate SVG based visualization
$visualizationSettings = [
    'width' => 450,
    'height' => 300,
    'spatialColumn' => 'wkt'
];
$data = [['wkt' => $wkt_with_zero, 'srid' => $srid]];
$visualization = GisVisualization::getByData($data, $visualizationSettings)
    ->toImage('svg');

$open_layers = GisVisualization::getByData($data, $visualizationSettings)
    ->asOl();

// If the call is to update the WKT and visualization make an AJAX response
if (isset($_REQUEST['generate']) && $_REQUEST['generate'] == true) {
    $extra_data = [
        'result'        => $result,
        'visualization' => $visualization,
        'openLayers'    => $open_layers,
    ];
    $response = Response::getInstance();
    $response->addJSON($extra_data);
    exit;
}

$geom_count = 1;
if ($geom_type == 'GEOMETRYCOLLECTION') {
    $geom_count = (isset($gis_data[$geom_type]['geom_count']))
        ? intval($gis_data[$geom_type]['geom_count']) : 1;
    if (isset($gis_data[$geom_type]['add_geom'])) {
        $geom_count++;
    }
}

$templateOutput = $template->render('gis_data_editor_form', [
    'pma_theme_image' => $GLOBALS['pmaThemeImage'],
    'field' => $_REQUEST['field'],
    'input_name' => $_REQUEST['input_name'],
    'srid' => $srid,
    'visualization' => $visualization,
    'open_layers' => $open_layers,
    'gis_types' => $gis_types,
    'geom_type' => $geom_type,
    'geom_count' => $geom_count,
    'gis_data' => $gis_data,
    'result' => $result,
]);
Response::getInstance()->addJSON('gis_editor', $templateOutput);