feat(StrMacro): Add StrMacro class

- Declare strict types
- Add StrMacro class
- Add isJson() method

Author: guanguans

app/Macros/StrMacro.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of the guanguans/ai-commit.
+ *
+ * (c) guanguans <ityaozm@gmail.com>
+ *
+ * This source file is subject to the MIT license that is bundled.
+ */
+
+namespace App\Macros;
+
+/**
+ * @mixin \Illuminate\Support\Str
+ */
+class StrMacro
+{
+    public static function isJson(): callable
+    {
+        return function ($value) {
+            if (! is_string($value)) {
+                return false;
+            }
+
+            json_decode($value);
+
+            return JSON_ERROR_NONE === json_last_error();
+        };
+    }
+}

app/Macros/StringableMacro.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of the guanguans/ai-commit.
+ *
+ * (c) guanguans <ityaozm@gmail.com>
+ *
+ * This source file is subject to the MIT license that is bundled.
+ */
+
+namespace App\Macros;
+
+use Illuminate\Support\Str;
+
+/**
+ * @mixin \Illuminate\Support\Stringable
+ */
+class StringableMacro
+{
+    public function isJson(): callable
+    {
+        return function () {
+            return Str::isJson($this->value);
+        };
+    }
+}

app/Providers/AppServiceProvider.php

@@ -13,7 +13,11 @@
 namespace App\Providers;
 
 use App\ConfigManager;
+use App\Macros\StringableMacro;
+use App\Macros\StrMacro;
 use Illuminate\Support\ServiceProvider;
+use Illuminate\Support\Str;
+use Illuminate\Support\Stringable;
 
 class AppServiceProvider extends ServiceProvider
 {
@@ -22,7 +26,10 @@ class AppServiceProvider extends ServiceProvider
      *
      * @var array<array-key, string>
      */
-    public $singletons = [];
+    public $singletons = [
+        StringableMacro::class => StringableMacro::class,
+        StrMacro::class => StrMacro::class,
+    ];
 
     /**
      * Bootstrap any application services.
@@ -41,5 +48,7 @@ public function boot()
      */
     public function register()
     {
+        Stringable::mixin($this->app->make(StringableMacro::class));
+        Str::mixin($this->app->make(StrMacro::class));
     }
 }