<?php

// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
//
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
// $Id$

class UserPayCredits extends CreditsLib
{
    public function __construct()
    {
        global $user, $prefs;
        $valid_credits = unserialize($prefs['payment_tikicredits_types']);
        $credits_xcrates = unserialize($prefs['payment_tikicredits_xcrates']);

        $userId = $this->get_user_id($user);
        $uc = $this->getScaledCredits($userId);

        $ret = [];
        for ($i = 0, $cvalid_credits = count($valid_credits); $i < $cvalid_credits; $i++) {
            $one = [];
            $k = $valid_credits[$i];
            if (! empty($credits_xcrates[$i])) {
                $one['xcrate'] = $credits_xcrates[$i];
            } else {
                $one['xcrate'] = 1;
            }
            if (isset($uc[$k])) {
                $one['remain'] = $uc[$k]['remain'];
                $one['unit_text'] = $uc[$k]['unit_text'];
                $one['display_text'] = $uc[$k]['display_text'];
            }
            $ret[$k] = $one;
        }

        $this->credits = $ret;
    }

    public function setPrice($price)
    {
        $credits = $this->credits;
        foreach ($credits as $k => $uc) {
            $credits[$k]['price'] = $price * $credits[$k]['xcrate'];
            if ($credits[$k]['price'] > $credits[$k]['remain']) {
                $credits[$k]['enough'] = 0;
            } else {
                $credits[$k]['enough'] = 1;
            }
        }
        $this->credits = $credits;
    }

    public function payAmount($creditType, $amount, $invoice)
    {
        global $user;
        $tikilib = TikiLib::lib('tiki');
        $paymentlib = TikiLib::lib('payment');
        $userId = $this->get_user_id($user);
        $uc = $this->getCredits($userId);
        if ($amount > $uc[$creditType]['remain']) {
            return false;
        }
        $credits_amount = $amount * $this->credits[$creditType]['xcrate'];
        if ($this->useCredits($userId, $creditType, $credits_amount)) {
            $msg = tr("Tiki credits payment done on %0 for %1 (using %2)", $tikilib->get_short_datetime($tikilib->now), $amount, $creditType);
            $paymentlib->enter_payment(
                $invoice,
                $amount,
                'tikicredits',
                [
                    'info' => $msg,
                    'username' => $user,
                    'creditType' => $creditType,
                    'creditAmount' => $credits_amount
                ]
            );
            return true;
        } else {
            return false;
        }
    }
}