From 10581b092e8323202c6f0fb1a1b133f5ad046f5c Mon Sep 17 00:00:00 2001
From: andy <andy.nguyen@xendit.co>
Date: Wed, 27 Apr 2022 07:55:45 +0000
Subject: [PATCH] Check WHMCS version compatible with our plugin

---
 modules/gateways/xendit/hooks.php             |  3 +-
 modules/gateways/xendit/lib/ActionBase.php    | 30 +++++++++++++++++++
 .../gateways/xendit/tests/WHMCSModuleTest.php | 23 ++++++++++++++
 3 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/modules/gateways/xendit/hooks.php b/modules/gateways/xendit/hooks.php
index 35349af..d488c25 100644
--- a/modules/gateways/xendit/hooks.php
+++ b/modules/gateways/xendit/hooks.php
@@ -30,8 +30,9 @@
  */
 add_hook("ClientAreaPageCart", 1, function ($vars) {
     if ($vars['templatefile'] == 'viewcart') {
+        $actionBase = new ActionBase();
         $activeCurrency = $vars['activeCurrency']->code;
-        if (!in_array($activeCurrency, ActionBase::ALLOW_CURRENCIES)) {
+        if (!$actionBase->validateCompatibilityVersion() || !in_array($activeCurrency, ActionBase::ALLOW_CURRENCIES)) {
             unset($vars['gateways']["xendit"]);
         }
     }
diff --git a/modules/gateways/xendit/lib/ActionBase.php b/modules/gateways/xendit/lib/ActionBase.php
index f864240..4b0c90d 100644
--- a/modules/gateways/xendit/lib/ActionBase.php
+++ b/modules/gateways/xendit/lib/ActionBase.php
@@ -13,6 +13,7 @@
 class ActionBase
 {
     const ALLOW_CURRENCIES = ['IDR', 'PHP', 'USD'];
+    const WHMCS_MIN_VERSION_SUPPORT = 7.9;
 
     protected $moduleDomain = 'xendit';
     protected $xenditRequest;
@@ -44,6 +45,24 @@ public function getXenditConfig()
      */
     public function createConfig()
     {
+        if (!$this->validateCompatibilityVersion()) {
+            return array(
+                'FriendlyName' => array(
+                    'Type' => 'System',
+                    'Value' => 'Xendit Payment Gateway',
+                ),
+                'description' => array(
+                    'FriendlyName' => '',
+                    'Type' => 'hidden',
+                    'Size' => '72',
+                    'Default' => '',
+                    'Description' => '<div class="alert alert-danger top-margin-5 bottom-margin-5">
+Your WHMCS version not compatibility with Xendit Payment Gateway. <a href="https://marketplace.whmcs.com/product/6411-xendit-payment-gateway" target="_blank">See more</a>
+</div>',
+                ),
+            );
+        }
+
         return array(
             'FriendlyName' => array(
                 'Type' => 'System',
@@ -298,4 +317,15 @@ public function roundUpTotal(float $total): float
     {
         return ceil($total);
     }
+
+    /***
+     * @param string|null $currentVersion
+     * @return bool
+     */
+    public function validateCompatibilityVersion(string $currentVersion = null): bool
+    {
+        global $CONFIG;
+        $version = !empty($currentVersion) ? $currentVersion : $CONFIG['Version'];
+        return version_compare($version, self::WHMCS_MIN_VERSION_SUPPORT, ">=");
+    }
 }
diff --git a/modules/gateways/xendit/tests/WHMCSModuleTest.php b/modules/gateways/xendit/tests/WHMCSModuleTest.php
index 62923ae..d8796c2 100644
--- a/modules/gateways/xendit/tests/WHMCSModuleTest.php
+++ b/modules/gateways/xendit/tests/WHMCSModuleTest.php
@@ -111,4 +111,27 @@ public function testCallbackPaidTotal()
             );
         }
     }
+
+    public function testVersionCompatibility()
+    {
+        $actionBase = new \Xendit\Lib\ActionBase();
+        $versions = [
+            "7.5" => false,
+            "7.6" => false,
+            "7.7.2" => false,
+            "7.8.1" => false,
+            "7.9" => true,
+            "8.0.1" => true,
+            "8.1.1" => true,
+            "8.2" => true,
+            "8.4" => true
+        ];
+        foreach ($versions as $version => $expect) {
+            if ($expect) {
+                $this->assertTrue($actionBase->validateCompatibilityVersion($version));
+            } else {
+                $this->assertFalse($actionBase->validateCompatibilityVersion($version));
+            }
+        }
+    }
 }