<?php

/*******************************************************************************
 * Copyright (c) 2014 Eclipse Foundation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Edouard Poitras (Eclipse Foundation) - Further modifications
 *******************************************************************************/

/* TShirt Table Schema
CREATE TABLE `tshirts` (`code` varchar(32) NOT NULL DEFAULT '',
                        `url` varchar(255) NOT NULL DEFAULT '',
                        `creation_date` DATE NOT NULL,
                        `sent_date` DATE,
                        `bugzilla_id` INT UNSIGNED,
                        `transaction_id` varchar(60),
                        `uid` varchar(60) NULL,
                        PRIMARY KEY (`code`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;

ALTER TABLE `tshirts` ADD INDEX tshirts_bugzilla_id(bugzilla_id);
ALTER TABLE `tshirts` ADD INDEX tshirts_sent_date(sent_date);
*/

/* Sample CSV
Code		URL									Created Date	Sent Date	Redemption Date	Order Completed Date	Order #	Cost
SXZQYQBXWQ	https://get.printfection.com/yourdomainhere/2048237065/sxzqyqbxwq	05/16/2014
HKZNWZBNPQ	https://get.printfection.com/yourdomainhere/2048237065/hkznwzbnpq	05/16/2014
HSPSSYXWXJ	https://get.printfection.com/yourdomainhere/2048237065/hspssyxwxj	05/16/2014
KQGKFFBGBW	https://get.printfection.com/yourdomainhere/2048237065/kqgkffbgbw	05/16/2014
XJFWWBWXPJ	https://get.printfection.com/yourdomainhere/2048237065/xjfwwbwxpj	05/16/2014

INSERT INTO tshirts VALUES ("SXZQYQBXWQ", "https://get.printfection.com/yourdomainhere/2048237065/sxzqyqbxwq", '2014-05-16', null, null, null, null);
*/

require_once($_SERVER['DOCUMENT_ROOT'] . "/eclipse.org-common/system/app.class.php");

function get_tshirt_link($uid, $transaction_id) {
  if ($transaction_id && $uid) {
    // Check to see if this transaction has already been processed.
    $check_contribution = new Contribution();
    $check_transaction = $check_contribution->selectContributionExists($transaction_id);
    if ($check_transaction == FALSE) {
      $code = get_new_code();
      // Set the uid for that code
      consume_code($code['code'], $uid, $transaction_id);
    } else { // Try getting the existing code
      $code = get_existing_code($transaction_id);
      if (!isset($code['url'])) { // Get new code
        $code = get_new_code();
        consume_code($code['code'], $uid, $transaction_id);
      }
    }
    return $code['url'];
  }
  return "Invalid Transaction";
}

function get_new_code() {
  $App = new App();
  $sql = "SELECT code, url FROM tshirts WHERE sent_date IS NULL LIMIT 1";
  $tmp = mysql_fetch_assoc($App->eclipse_sql($sql));
  return $tmp;
}

function get_existing_code($transaction_id) {
  $App = new App();
  $sql = "SELECT code, url FROM tshirts WHERE transaction_id = " .
         $App->returnQuotedString($App->sqlSanitize($transaction_id)) .
         " ORDER BY sent_date DESC LIMIT 1";
  $tmp = mysql_fetch_assoc($App->eclipse_sql($sql));
  return $tmp;
}

function consume_code($code, $uid, $transaction_id) {
  $App = new App();
  $sql = "UPDATE tshirts SET sent_date = CURDATE(), uid = " .
         $App->returnQuotedString($App->sqlSanitize($uid)) . ", transaction_id = " .
         $App->returnQuotedString($App->sqlSanitize($transaction_id)) . " WHERE code = " .
         $App->returnQuotedString($App->sqlSanitize($code));
  $App->eclipse_sql($sql);
}