<?php

namespace Bobosch\OdsOsm\Provider;

use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Core\Environment;

class Staticmap extends BaseProvider
{
    protected $uploadPath = 'fileadmin/tx_odsosm/staticmap';

    public function getMap($layers, $markers, $lon, $lat, $zoom)
    {
        $marker = [];

        foreach ($markers as $table => $items) {
            foreach ($items as $item) {
                switch ($table) {
                    case 'tx_odsosm_track':
                    case 'tx_odsosm_vector':
                        break;
                    default:
                        $lon = $item['longitude'];
                        $lat = $item['latitude'];
                        if ($item['tx_odsosm_marker'] ?? false) {
                            $marker = $item['tx_odsosm_marker'];
                            $icon = $marker['icon'];
                        } else {
                            $marker = ['size_x' => 21, 'size_y' => 25, 'offset_x' => -11, 'offset_y' => -25];
                            $icon = 'EXT:ods_osm/Resources/Public/Icons/marker-icon.png';
                        }
                        break 3;
                }
            }
        }

        // set reasonable defaults for width and height (100% and vh/vw does not work with staticmap)
        if ((int)$this->config['width'] <= 100) {
            $this->config['width'] = 640;
        }
        if ((int)$this->config['height'] <= 100) {
            $this->config['height'] = 480;
        }


        $markerUrl = [
            '###lon###' => $lon,
            '###lat###' => $lat,
            '###zoom###' => $zoom,
            '###width###' => (int)$this->config['width'],
            '###height###' => (int)$this->config['height'],
        ];

        $layer = array_shift($layers);
        $url = strtr($layer[0]['static_url'], $markerUrl);

        $this->uploadPath = Environment::getPublicPath() . '/'  . $this->uploadPath;
        if (!is_dir($this->uploadPath)) {
            GeneralUtility::mkdir_deep($this->uploadPath);
        }

        $filename = $this->uploadPath . '/' . md5($url) . '.png';

        // Cache image
        $cache = false;
        if (file_exists($filename)) {
            $cache = filectime($filename) > time() - 7 * 24 * 60 * 60;
        }
        if (!$cache) {
            $referer = $_SERVER['HTTP_REFERER'];
            $opts = [
                'http'=>[
                    'header'=>["Referer: $referer\r\n"]
                ]
            ];
            $context = stream_context_create($opts);
            $image = file_get_contents($url, false, $context);
            if ($image) {
                file_put_contents($filename, $image);
            }
        }

        // Generate image tag
        $config = [
            'file' => 'GIFBUILDER',
            'file.' => [
                'format' => 'png',
                'XY' => '[10.w],[10.h]',
                '10' => 'IMAGE',
                '10.' => [
                    'file' => $filename,
                ]
            ],
        ];

        if ($marker['offset_x'] ?? null) {
            $config['file.']['20'] = 'IMAGE';
            $config['file.']['20.'] = [
                'offset' => ((int)$this->config['width'] / 2 + (int)$marker['offset_x']) . ',' . ((int)$this->config['height'] / 2 + (int)$marker['offset_y']),
                'file' => $icon,
            ];
        }

        $content = $this->cObj->cObjGetSingle('IMAGE', $config);

        return ($content);
    }
}