<?php

return [

	"post" => function($data, $headers, $db) {
		function remoteFileExists($url) {
			$curl = curl_init($url);
		
			//don't fetch the actual page, you only want to check the connection is ok
			curl_setopt($curl, CURLOPT_NOBODY, true);
		
			//do request
			$result = curl_exec($curl);
		
			$ret = false;
		
			//if request did not fail
			if ($result !== false) {
				//if request was ok, check response code
				$statusCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);  
		
				if ($statusCode == 200) {
					$ret = true;   
				}
			}
		
			curl_close($curl);
		
			return $ret;
		}
		
		$imagesHostName = 'https://geohry.skolazdola.cz/';

		if(!isset($data['gameurl']) || empty($data['gameurl'])) return [
			"data" => [
				"success" => false,
				"message" => "Property 'gameurl' is not set."
			]
		];

		$gameUrl = $data['gameurl'];

		$gameDetails = $db->select('games4', '*', [
			'url' => $gameUrl
		]);

		if(!$gameDetails) return [
			"data" => [
				"success" => false,
				"message" => "Invalid 'gameurl'."
			]
		];

		$gameDetails = $gameDetails[0];

		$gameDetails["questions"] = $db->select('questions4', '*', [
			'url' => $gameUrl
		]);

		$thumbnailPath = "{$imagesHostName}/games/{$gameUrl}/intro.jpg";
		$gameDetails["thumbnail"] = remoteFileExists($thumbnailPath) ? $thumbnailPath : null;

		foreach($gameDetails["questions"] as &$question) {
			$questionThumbnailPath = "{$imagesHostName}/games/{$gameUrl}/" . $question["uniqid"] . ".jpg";
			$question["thumbnail"] = remoteFileExists($questionThumbnailPath) ? $questionThumbnailPath : null;
		}

		return [
			"success" => true,
			"data" => $gameDetails
		];
	}

];