<?php

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

/**
 * https://www.sitepoint.com/php-random-number-generator/
 */
class Random {

// random seed
    private static $RSeed = 0;

// set seed
    public static function seed($s = 0) {
        self::$RSeed = abs(intval($s)) % 9999999 + 1;
        self::num();
    }

// generate random number
    public static function num($min = 0, $max = 9999999) {
        if (self::$RSeed == 0) {
            self::seed(mt_rand());
        }
        self::$RSeed = (self::$RSeed * 125) % 2796203;
        return self::$RSeed % ($max - $min + 1) + $min;
    }

}

$returndata = [
    "status" => "OK",
    "item" => "",
    "munzee" => "",
    "messages" => []
];

try {
    if (strpos($VARS["code"], "munzee") > 1) {
        if (!empty($VARS["latitude"]) && !empty($VARS["longitude"]) && !empty($VARS["accuracy"])) {
            include 'capturemunzee.php';
        }
    }
} catch (Exception $ex) {
//file_put_contents("munzee.log", "Error with Munzee code: $ex\n", FILE_APPEND);
}

if ($database->has('claimedcodes', ["AND" => ['code' => $VARS["code"], 'accountid' => getRequestUser()->getUID()]])) {
    $returndata['messages'][] = $Strings->get("You've already discovered that.", false);
} else {
    $codearray = str_split($VARS["code"]);

    $codeint = 0;
    foreach ($codearray as $chr) {
        $codeint += ord($chr);
    }
    Random::seed($codeint);

    $items = $database->select("items", ["itemid", "weight"]);
    $weighted = [];

    foreach ($items as $item) {
        for ($i = 0; $i < $item["weight"]; $i++) {
            $weighted[] = $item["itemid"];
        }
    }
    $itemid = $weighted[Random::num(0, count($weighted))];

    $database->insert('inventory', ['accountid' => getRequestUser()->getUID(), 'itemid' => $itemid]);
    $database->insert('claimedcodes', ['code' => $VARS["code"], 'accountid' => getRequestUser()->getUID()]);
    $itemname = $database->get('items', 'itemname', ['itemid' => $itemid]);

    $returndata["item"] = $itemname;

    $returndata['messages'][] = $Strings->build("You found one {item}", ["item" => $itemname], false);
}

exitWithJson($returndata);