From 35304109e52e9398e450ecb983f10cf96df8ab43 Mon Sep 17 00:00:00 2001
From: Mikael Dalholm <mikael@dalholm.se>
Date: Tue, 28 Dec 2021 18:05:09 +0100
Subject: [PATCH] Allow customization of default CurrencyManager

---
 README.md                                     | 20 ++++++++++++++++++
 config/config.php                             | 13 ++++++++++++
 ...ssingCurrencyManagerExtensionException.php | 16 ++++++++++++++
 src/MoneyServiceProvider.php                  | 21 +++++++++++++++++++
 src/helpers.php                               |  2 +-
 5 files changed, 71 insertions(+), 1 deletion(-)
 create mode 100644 config/config.php
 create mode 100644 src/Exceptions/MissingCurrencyManagerExtensionException.php

diff --git a/README.md b/README.md
index 7a76b0c..51eb6dd 100644
--- a/README.md
+++ b/README.md
@@ -525,6 +525,26 @@ currencies()->add(cache()->remember('currencies', 3600, function () {
 
 Where the DB call returns an array of array currencies following the [format mentioned above](#creating-a-currency).
 
+
+## Customization
+Optionally you could publish the config and replace the `CurrencyManager::class` with your own.
+
+```bash
+php artisan vendor:publish --tag="money-config"
+```
+
+```php
+// config/money.php
+<?php
+
+return [
+    //...
+    'manager' => \ArchTech\Money\CurrencyManager::class, // replace with your own
+];
+
+```
+
+
 ## Development & contributing
 
 Run all checks locally:
diff --git a/config/config.php b/config/config.php
new file mode 100644
index 0000000..57f677a
--- /dev/null
+++ b/config/config.php
@@ -0,0 +1,13 @@
+<?php
+
+return [
+    /*
+    |--------------------------------------------------------------------------
+    | Currency Manager
+    |--------------------------------------------------------------------------
+    | You can customize CurrencyManager as you wish.
+    | Be sure to extend the CurrencyManager class as you do so.
+    |
+    */
+    'manager' => \ArchTech\Money\CurrencyManager::class,
+];
\ No newline at end of file
diff --git a/src/Exceptions/MissingCurrencyManagerExtensionException.php b/src/Exceptions/MissingCurrencyManagerExtensionException.php
new file mode 100644
index 0000000..0a6b1d5
--- /dev/null
+++ b/src/Exceptions/MissingCurrencyManagerExtensionException.php
@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ArchTech\Money\Exceptions;
+
+use ArchTech\Money\CurrencyManager;
+use Exception;
+
+class MissingCurrencyManagerExtensionException extends Exception
+{
+    public function __construct(string $className)
+    {
+        parent::__construct("Missing extension: The {$className} must extend ".CurrencyManager::class.".");
+    }
+}
\ No newline at end of file
diff --git a/src/MoneyServiceProvider.php b/src/MoneyServiceProvider.php
index f28d259..f5efa44 100644
--- a/src/MoneyServiceProvider.php
+++ b/src/MoneyServiceProvider.php
@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace ArchTech\Money;
 
+use ArchTech\Money\Exceptions\MissingCurrencyManagerExtensionException;
 use Illuminate\Support\ServiceProvider;
 
 class MoneyServiceProvider extends ServiceProvider
@@ -11,5 +12,25 @@ class MoneyServiceProvider extends ServiceProvider
     public function register(): void
     {
         $this->app->singleton(CurrencyManager::class);
+        $this->mergeConfigFrom(__DIR__.'/../config/config.php', 'money');
+
+        $class = $this->app->make(config('money.manager'));
+
+        /**
+         * Make sure that the CurrencyManager is loaded as expected
+         */
+        if (!is_a($class, CurrencyManager::class)) {
+            throw new MissingCurrencyManagerExtensionException($class::class);
+        }
+
+        $this->app->singleton($class::class);
+
+    }
+
+    public function boot()
+    {
+        $this->publishes([
+            __DIR__ . '/../config/config.php' => config_path('money.php'),
+        ], 'money-config');
     }
 }
diff --git a/src/helpers.php b/src/helpers.php
index 9fa6f61..acfbba5 100644
--- a/src/helpers.php
+++ b/src/helpers.php
@@ -32,6 +32,6 @@ if (! function_exists('currencies')) {
     /** Get the CurrencyManager instance. */
     function currencies(): CurrencyManager
     {
-        return app(CurrencyManager::class);
+        return app(config('money.manager'));
     }
 }