From b0359c2354451bb9c0e5172965b10e92876a1d7d Mon Sep 17 00:00:00 2001
From: Camilo Sperberg <me@unreal4u.com>
Date: Mon, 19 Jun 2017 19:44:04 +0200
Subject: [PATCH] Fixes invalid LabeledPrice array

Tests will follow
---
 examples/conf.php-sample             |  2 ++
 src/Telegram/Methods/SendInvoice.php | 15 +++++++++++++++
 src/TgLog.php                        |  2 +-
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/examples/conf.php-sample b/examples/conf.php-sample
index 4d36d70..93370da 100644
--- a/examples/conf.php-sample
+++ b/examples/conf.php-sample
@@ -11,3 +11,5 @@ define('A_GROUP_CHAT_ID', 'XXXXXXXXX');
 define('A_FILE_ID', 'XXXXXXXXXXXXXXXXXXXXXXXX');
 
 define('A_USER_ID', 'XXXXXXXX');
+
+define('PAYMENT_TOKEN', '123412341234:TEST:XXXXXXXXXXX');
diff --git a/src/Telegram/Methods/SendInvoice.php b/src/Telegram/Methods/SendInvoice.php
index cdb77da..9193b84 100644
--- a/src/Telegram/Methods/SendInvoice.php
+++ b/src/Telegram/Methods/SendInvoice.php
@@ -140,6 +140,21 @@ class SendInvoice extends TelegramMethods
      */
     public $reply_markup;
 
+    /**
+     * Prices must be an array of objects, so json_encode() them
+     *
+     * @see https://github.com/unreal4u/telegram-api/issues/32
+     * @return TelegramMethods
+     */
+    public function performSpecialConditions(): TelegramMethods
+    {
+        if (!empty($this->prices)) {
+            $this->prices = json_encode($this->prices);
+        }
+
+        return parent::performSpecialConditions();
+    }
+
     public function getMandatoryFields(): array
     {
         return [
diff --git a/src/TgLog.php b/src/TgLog.php
index 511e6e4..21128bf 100644
--- a/src/TgLog.php
+++ b/src/TgLog.php
@@ -29,7 +29,7 @@ class TgLog
      * Stores the token
      * @var string
      */
-    private $botToken = '';
+    private $botToken;
 
     /**
      * Contains an instance to a PSR-3 compatible logger