<?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.
// $Id$

function wikiplugin_trade_info()
{
    global $prefs;

    return [
        'name' => tra('Trade'),
        'documentation' => 'PluginTrade',
        'description' => tra('Send payments between members using cclite'),
        'validate' => 'all',
        'prefs' => [ 'wikiplugin_trade', 'payment_feature' ],
        'iconname' => 'money',
        'introduced' => 6,
        'tags' => [ 'experimental' ],
        'params' => [
            'price' => [
                'required' => true,
                'name' => tra('Price'),
                'description' => tr('Currency depends on the selected registry.'),
                'since' => '6.0',
                'filter' => 'text',
                'default' => '',
            ],
            'registry' => [
                'required' => false,
                'name' => tra('Registry'),
                'description' => tr('Registry to trade in. Default: site preference (or first in list when more than one)'),
                'since' => '6.0',
                'filter' => 'text',
                'default' => '',
            ],
            'currency' => [
                'required' => false,
                'name' => tra('Currency'),
                'description' => tr('Currency to trade in. Default: Cclite currency preference for registry set above'),
                'since' => '6.0',
                'filter' => 'text',
                'default' => '',
            ],
            'other_user' => [
                'required' => false,
                'name' => tra('Other User'),
                'description' => tra('Name of the user to receive or send the payment.') . ' '
                    . tra('Leave empty to display an input box.'),
                'since' => '6.0',
                'filter' => 'username',
                'default' => '',
            ],
            'wanted' => [
                'required' => false,
                'name' => tra('Mode'),
                'description' => tr('Offered or wanted item.') . ' ' . tr('Default') . ':' . tr(
                    '%0Offered%1',
                    '<code>',
                    '</code>'
                ),
                'since' => '6.0',
                'options' => [
                    ['text' => '', 'value' => ''],
                    ['text' => tra('Offered'), 'value' => 'n'],
                    ['text' => tra('Wanted'), 'value' => 'y'],
                ],
                'filter' => 'alpha',
                'default' => 'n',
            ],
            'action' => [
                'required' => false,
                'name' => tra('Button Label'),
                'description' => tr('Default') . ':' . tr('%0Continue%1', '<code>', '</code>'),
                'since' => '6.0',
                'filter' => 'text',
                'default' => tra('Continue'),
            ],
            'inputtitle' => [
                'required' => false,
                'name' => tra('Input Title'),
                'description' => tra('Title of the input form.') . ' ' . tr(
                    'Use %0 for the amount, %1 for currency,
                     %2 for your user name, %3 for the other user.',
                    '<code>%0</code>',
                    '<code>%1</code>',
                    '<code>%2</code>',
                    '<code>%3</code>'
                ) . ' '
                    . tra('Supports wiki syntax') . '<br />' . tr('Default') . ':'
                    . tra('"Payment of %0 %1 from user %2 to %3" for offered items, "Request payment of %0 %1 to user
                    %2 from %3" for wanted'),
                'since' => '6.0',
                'filter' => 'text',
                'default' => '',
            ],
        ],
    ];
}

function wikiplugin_trade($data, $params, $offset)
{
    global $prefs, $user;
    $userlib = TikiLib::lib('user');
    $smarty = TikiLib::lib('smarty');
    $headerlib = TikiLib::lib('header');
    $paymentlib = TikiLib::lib('payment');
    global $cclitelib;
    require_once 'lib/payment/cclitelib.php';
    static $iPluginTrade = 0;

    $default = [ 'inputtitle' => '', 'wanted' => 'n', 'action' => tra('Continue'), 'registry' => '', 'currency' => '' ];
    $params = array_merge($default, $params);

    if (empty($params['registry'])) {
        $params['registry'] = $cclitelib->get_registry();
    }
    if (empty($params['currency'])) {
        $params['currency'] = $cclitelib->get_currency($params['registry']);
    }

    $iPluginTrade++;
    $smarty->assign('iPluginTrade', $iPluginTrade);

    $params['price'] = (float)preg_replace('/^\D*([\d\.]*)/', '$1', $params['price']);
    $smarty->assign('wp_trade_other_user_set', empty($params['other_user']) ? 'n' : 'y');
    $smarty->assign('wp_trade_action', $params['action']);

//  $smarty->assign( 'wp_trade_quantity_edit', $params['quantity'] <= 0 ? 'y' : 'n');   // TODO
//  $smarty->assign( 'wp_trade_quantity', abs($params['quantity']));

    if (isset($_POST['wp_trade_offset']) && $_POST['wp_trade_offset'] == $offset && ! empty($_POST['wp_trade_other_user'])) {
        $params['other_user'] = $_POST['wp_trade_other_user'];
    }
    $params['other_user'] = trim($params['other_user'], '|');
    $other_users = explode('|', $params['other_user']);
    $other_users = array_map('trim', $other_users);
    $other_users = array_filter($other_users, [ $userlib, 'user_exists' ]);
    $other_users = array_filter($other_users);

    if (! empty($other_users)) {
        $info = $userlib->get_user_info($other_users[0]);
    } else {
        $info = [];
    }
    $smarty->assign('wp_trade_offset', $offset);
    $smarty->assign('wp_trade_price', $params['price']);
    $smarty->assign('wp_trade_other_user', $info);
    $smarty->assign('wp_trade_currentuser', $params['currentuser']);

    if ($params['wanted'] == 'n') {
        if (empty($params['inputtitle'])) {
            $params['inputtitle'] = 'Payment of %0 %1 from user %2 to %3';
        }
    } else {
        if (empty($params['inputtitle'])) {
            $params['inputtitle'] = 'Request payment of %0 %1 to user %2 from %3';
        }
    }
    $desc = tr($params['inputtitle'], number_format($params['price'], 2), $params['currency'], $user, $params['other_user']);

    if (( ! empty($info) && $info['waiting'] == null )) {
        // user clicked "continue" (probably)
        if (isset($_POST['wp_trade_offset']) && $_POST['wp_trade_offset'] == $offset) {
            $id = $paymentlib->request_payment($desc, $params['price'], $prefs['payment_default_delay'], null, $params['currency']);

            if (empty($user)) {
                return '{REMARKSBOX(type=warning, title=Plugin Trade Error)}' .
                    tra('Please log in.') . '{REMARKSBOX}';
            } else {
                $params['main_user'] = $user;
            }
            $params['invoice'] = $id;
            $paymentlib->register_behavior($id, 'complete', 'perform_trade', [$params]);

            //$smarty->assign( 'wp_trade_title', $desc );
            require_once 'lib/smarty_tiki/function.payment.php';
            return '^~np~' . smarty_function_payment([ 'id' => $id ], $smarty->getEmptyInternalTemplate()) . '~/np~^';
        } elseif ($prefs['payment_system'] == 'cclite' && isset($_POST['cclite_payment_amount']) && isset($_POST['invoice'])) {
            require_once 'lib/smarty_tiki/function.payment.php';
            $params['id'] = $_POST['invoice'];
            return '^~np~' . smarty_function_payment($params, $smarty->getEmptyInternalTemplate()) . '~/np~^';
        }
    } elseif ($info['waiting'] != null) {
        return '{REMARKSBOX(type=warning, title=Plugin Trade Error)}' . tra('The user ') . '<em>' . $info['login']
                . '</em>' . tra(' needs to validate their account.')
                . '{REMARKSBOX}';
    }

    $smarty->assign('wp_trade_title', $desc);
    return '~np~' . $smarty->fetch('wiki-plugins/wikiplugin_trade.tpl') . '~/np~';
}