<?php
class database
{
	private $db;

	function __construct($file){
		try {
			$this->db = new PDO('sqlite:'.$file);
		} catch(PDOException $e) {
			error_log($e->getMessage(), 3, 'php://stderr');
		}
	}

	function query($sql,$attr){
		$stmt = $this->db->prepare($sql);
		try {
		$stmt->execute($attr);
		} catch (PDOException $e) {
			echo $e->getMessage();
		}
		return $stmt;
	}
}

function createquery($form){
	$date = date("Y-m-d H:i:s");

	switch($form){
		case "skola":
			$query = "
				insert into skola
				(id,datum,instituce,kraj,adresa,jmeno,email,telefon,pocet_skupin,pocet_deti,vek_deti,pece,poznamka)
				values (?,?,?,?,?,?,?,?,?,?,?,?,?)
			";
			$values = [
				NULL,
				$date,
				$_REQUEST["instituce"],
				$_REQUEST["kraj"],
				$_REQUEST["adresa"],
				$_REQUEST["jmeno"],
				$_REQUEST["email"],
				(empty($_REQUEST["telefon"]) ? "" : $_REQUEST["telefon"]),
				$_REQUEST["pocet_skupin"],
				$_REQUEST["pocet_deti"],
				$_REQUEST["vek_deti"],
				$_REQUEST["pece"],
				(empty($_REQUEST["poznamka"]) ? "" : $_REQUEST["poznamka"])
			];
			break;
		case "dobrovolnik":
			$query = "
				insert into dobrovolnik
				(id,datum,jmeno,email,telefon,studijni_program,obor,kraj,cas,vek_deti,distancni_vyuka,uznani_praxe,poznamka)
				values (?,?,?,?,?,?,?,?,?,?,?,?,?)
			";
			$values = [
				NULL,
				$date,
				$_REQUEST["jmeno"],
				$_REQUEST["email"],
				(empty($_REQUEST["telefon"]) ? "" : $_REQUEST["telefon"]),
				$_REQUEST["studijni_program"],
				$_REQUEST["obor"],
				$_REQUEST["kraj"],
				$_REQUEST["cas"],
				$_REQUEST["vek_deti"],
				$_REQUEST["distancni_vyuka"],
				$_REQUEST["uznani_praxe"],
				(empty($_REQUEST["poznamka"]) ? "" : $_REQUEST["poznamka"])
			];
			break;
	}
	return [$query,$values];
}

$db = new database("./db/database.db");

$query = createquery($_REQUEST["form"]);
$db->query("$query[0]",$query[1]);

$refer = (!empty($_SERVER["HTTP_REFERER"]) ? $_SERVER["HTTP_REFERER"] : "/");
header("Location: ".$refer);