battles/classes/Battles/ShopItem.php

<?php

namespace Battles;

use Battles\Database\DBPDO;
use Exceptions\GameException;

class ShopItem extends Item
{
    private const NO_ITEMS_IN_STOCK = "Товара нет в наличии!";
    private const NO_MONEY = "У вас нет денег!";
    private const BUTTON = [
        'setmarket' => 'Сдать в магазин',
        'unsetmarket' => 'Снять с продажи',
        'buymarket' => 'Совершить обмен',
        'sellshop' => 'Продать',
        'buyshop' => 'Купить',
    ];
    private const BUY_QUERY = 'insert into inventory (owner_id, name, item_type, durability,
                       need_strength, need_dexterity, need_intuition, need_endurance, need_intelligence, need_wisdom,
                       add_strength, add_dexterity, add_intuition, add_endurance, add_intelligence, add_wisdom,
                       add_accuracy, add_evasion, add_criticals, add_min_physical_damage, add_max_physical_damage,
                       image, weight, price) 
                       select 
                            ?,
                            ifnull(name,\'Неизвестный предмет\'),
                            ifnull(item_type,0),
                            ifnull(durability, 1),
                            ifnull(need_strength, 0),
                            ifnull(need_dexterity, 0),
                            ifnull(need_intuition, 0),
                            ifnull(need_endurance, 0),
                            ifnull(need_intelligence, 0),
                            ifnull(need_wisdom, 0),
                            ifnull(add_strength, 0),
                            ifnull(add_dexterity, 0),
                            ifnull(add_intuition, 0),
                            ifnull(add_endurance, 0),
                            ifnull(add_intelligence, 0),
                            ifnull(add_wisdom, 0),
                            ifnull(add_accuracy, 0),
                            ifnull(add_evasion, 0),
                            ifnull(add_criticals, 0),
                            ifnull(add_min_physical_damage, 0),
                            ifnull(add_max_physical_damage, 0),
                            ifnull(image, \'noitem.png\'),
                            ifnull(weight, 1),
                            ? 
                        from items where id = ?';
    // Тип операции в магазине. Для отображения разных блоков в разных случаях.
    private $optype;
    private ?int $shop_item_quantity;
    private ?int $bank_price;
    private ?int $price;

    public function __construct($row, $operationType = null)
    {
        parent::__construct($row);
        if ($operationType) {
            $this->optype = $operationType;
        }
        $this->price = $row->price ?? null;
        $this->shop_item_quantity = $row->shop_item_quantity ?? null;
        $this->bank_price = $row->bank_price ?? null;
        $this->item_id = $row->item_id ?? $row->id;
    }

    public function printInfo()
    {
        $this->printAllInfo();
        if ($this->optype === 'buyshop') {
            if ($this->bank_price) {
                echo "<div>Цена: $this->bank_price банкнот.</div>";
            }
            if ($this->shop_item_quantity > 0 && $this->shop_item_quantity < 20) {
                echo "<div style='margin-top: 9px; font-style: italic;'>На складе осталось $this->shop_item_quantity единиц товара!</div>";
            }
        }
        if ($this->optype === 'sellshop') {
            if ($this->getSellPriceMean() < 50) {
                $goods = 'этот хлам';
            } elseif ($this->getSellPriceMean() < 100) {
                $goods = 'этот посредственный товар';
            } elseif ($this->getSellPriceMean() < 500) {
                $goods = 'этот неплохой предмет';
            } elseif ($this->getSellPriceMean() < 1000) {
                $goods = 'эту отличную штуку';
            } else {
                $goods = 'это превосходное изделие';
            }
            echo "<div style='margin-top: 9px; font-style: italic;'>В среднем за $goods можно выручить <span class='success'>{$this->getSellPriceMean()}</span> кр.</div>";
        }
    }

    public function printImage(): string
    {
        if (!$this->image) {
            $this->image = 'noitem.png';
        }
        return "<img src='/i/sh/$this->image' class='item-wrap-normal' alt=''>";
    }

    public static function buyItem($id, User $buyer): string
    {
        $db = new DBPDO();
        $check = $db->ofetch("select * from trade_offers where shop_item_id = ?", $id);
        $itemPrice = $check->bank_price ?? 0;
        if (empty($check->shop_item_quantity) || empty($check->shop_item_id)) {
            return self::NO_ITEMS_IN_STOCK;
        }

        // TODO БАРТЕР!
        if (isset($check->barter_item_list_json)) {
            echo "Работаем по бартеру!";
        }

        $db->execute(self::BUY_QUERY, [$buyer->getId(), $itemPrice, $check->shop_item_id]);
        $item = $db->ofetch("select item_id, name, price from inventory where item_id = ?", $db->lastInsertId());
        if (empty($item->item_id) || empty($item->name) || empty($item->price)) {
            return 'Запрос в базу не прошёл.';
        } else {
            $boughtItemId = $item->item_id;
            $boughtItemName = $item->name;
            $boughtItemPrice = $item->price;
            if ($item->price > 0) {
                try {
                    $bank = new Bank($buyer->getId());
                    $bank->withdrawMoney($item->price);
                } catch (GameException $e) {
                    echo 'Банковская ошибка!';
                    return self::NO_MONEY;
                }
            }
        }

        if ($check->shop_item_quantity != -1) {
            $db->execute("update trade_offers set shop_item_quantity = shop_item_quantity -1 where shop_item_id = ?", $check->shop_item_id);
        }

        $deloText = $buyer->getLogin() . " купил товар «" . $boughtItemName . "» id:(" . $boughtItemId . ") в магазине за " . $boughtItemPrice . " банкнот.";
        GameLogs::addUserLog($buyer->getId(), $deloText);
        return "Предмет " . $boughtItemName . " куплен за " . $boughtItemPrice . " банкнот.";
    }

    //TODO не пишутся логи продажи!

    /** TODO
     * Notice: Undefined index: shopsell in /volume2/web/battles/classes/Battles/Bank.php on line 199 Call Stack: 0.0003 430192
     * 1. {main}() /volume2/web/battles/shop.php:0 0.0051 966928
     * 2. Battles\ShopItem::sellItem() /volume2/web/battles/shop.php:21 0.1067 998536
     * 3. Battles\Bank::setBankMoney() /volume2/web/battles/classes/Battles/ShopItem.php:162
     * Не отработал запрос в БД в файле /volume2/web/battles/classes/Battles/GameLogs.php(20)
     */
    public static function sellItem($id, User $seller, $bankTrade = 0): string
    {
        $db = new DBPDO();
        $item = $db->ofetch('select * from inventory where item_id = ?', $id);
        $sellingItemName = $item->name;
        // Продажа за цену от нуля до половины стоимости.
        $sellingPrice = mt_rand(0, $item->price / 2);
        $db->execute('delete from inventory where item_id = ?', $id);
        if ($bankTrade) {
            $bank = new Bank($seller->getId());
            $bank->setMoney($bank->getMoney() + $sellingPrice);
            Bank::setBankMoney($bank->getMoney(), $seller->getId(), 'shopsell');
        } else {
            $db->execute('update users set money = money - ? where id = ?', [$sellingPrice, $_SESSION['uid']]);
        }
        $deloText = "{$seller->getLogin()} продал товар «{$sellingItemName}» id:($id) в магазине за $sellingPrice кр.";
        GameLogs::addUserLog($seller->getId(), $deloText);
        if ($sellingPrice == 0) {
            $status = "После длительных и изнурительных торгов вы плюнули на всё и просто подарили ваш «{$sellingItemName}» торговцу.";
        } else {
            $status = "Вы продали «{$sellingItemName}» за $sellingPrice кр.";
        }
        return $status;
    }

    /** Подчсчёт средней суммы продажи.
     * @return int
     */
    private function getSellPriceMean(): ?int
    {
        if ($this->price) {
            $arr = range(0, $this->price / 2);
            return array_sum($arr) / sizeof($arr);
        }
        return null;
    }

    /**
     * Для кнопок управления под картинкой предмета в зависимости от ситуации.
     */
    public function printControls()
    {
        if (in_array($this->optype, ['setmarket', 'unsetmarket', 'buymarket', 'sellshop', 'buyshop',])) {
            $str = $this->optype == 'setmarket' ? '<input placeholder=" ' . $this->price . ' " name="cost">' : '';
            $button_name = self::BUTTON[$this->optype];
            echo <<<FORM
<form method="post">$str
<input type="hidden" name="itemId" value="$this->item_id">
<br><input type="submit" name="$this->optype" value="$button_name">
</form>
FORM;
        }
    }

    /**
     * @return mixed
     */
    public function getItemType()
    {
        return $this->item_type;
    }
}