add helpers file

Author: danielpuent3

README.md

@@ -64,7 +64,7 @@ Stripe Concepts:
 - Create a new stripe account
 - Use the stripe CLI to login to newly created account
 - Create a [stripe test clock](https://dashboard.stripe.com/test/billing/subscriptions/test-clocks) to simulate time
-    - This can be done through either the API or dashboard. You should get a test clock id that you'll add to your .env file (needed to run the fixture)
+    - This can be done through API. You should get a test clock id that you'll add to your .env file (needed to run the fixture)
       - Example: `STRIPE_TEST_CLOCK=clock_1PesQ4CAFqbekblQs2oyiGaq`
 - Once you've added your test clock you can use stripe cli to run your fixture. Fixture is located at fixtures/seed.json
   - The fixture will populate customer and subscription data into your stripe account

app/helpers.php

@@ -0,0 +1,29 @@
+<?php
+
+if (!function_exists('writeNewEnvironmentFileWithClock')) {
+    function writeNewEnvironmentFileWithClock($clockId): bool
+    {
+        $replaced = preg_replace(
+            clockReplacementPattern(),
+            'STRIPE_TEST_CLOCK='.$clockId,
+            $input = file_get_contents(app()->environmentFilePath())
+        );
+
+        if ($replaced === $input || $replaced === null) {
+            throw new Exception('Unable to set application key. No STRIPE_TEST_CLOCK variable was found in the .env file.');
+        }
+
+        file_put_contents(app()->environmentFilePath(), $replaced);
+
+        return true;
+    }
+}
+
+if (!function_exists('clockReplacementPattern')) {
+    function clockReplacementPattern(): string
+    {
+        $escaped = preg_quote('='.env('STRIPE_TEST_CLOCK'), '/');
+
+        return "/^STRIPE_TEST_CLOCK{$escaped}/m";
+    }
+}

composer.json

@@ -23,7 +23,10 @@
             "App\\": "app/",
             "Database\\Factories\\": "database/factories/",
             "Database\\Seeders\\": "database/seeders/"
-        }
+        },
+        "files": [
+            "app/helpers.php"
+        ]
     },
     "autoload-dev": {
         "psr-4": {