validate arguments

src/Http/Validation/Custom/ArtisanCommand.php

@@ -23,6 +23,8 @@
 namespace Seat\Web\Http\Validation\Custom;
 
 use Artisan;
+use Symfony\Component\Console\Input\ArgvInput;
+use Symfony\Component\Console\Exception\RuntimeException;
 
 /**
  * Class ArtisanCommand.
@@ -48,12 +50,30 @@ public static function validate($attribute, $value, $parameters, $validator)
         //split arguments
         $argv = explode(' ', $value);
 
-        //get command name and check if it exists
-        $commandName = $argv[0] ?? null;
-        if($commandName === null) return false;
+        //check if a command name is included and get it
+        if(count($argv) === 0) return false;
+        $commandName = array_shift($argv);
+
+        //check if the command exists and get it
         if(! array_key_exists($commandName, $allCommands)) return false;
+        $command = $allCommands[$commandName];
+
+        //extract the argument definition off the command
+        $argumentDefinition = $command->getDefinition();
 
-        //I haven't found a way to validate the arguments, so we assume they are alright
+        //validate our arguments
+        try {
+            //create an argument parser and supply it with the provided arguments.
+            // Also supply the argument definition to check if it complies with the command
+            // ArgvInput ignores the first element of the array(usually the executable name when calling it from the console), so just supply an empty string
+            $input = new ArgvInput(["", ...$argv], $argumentDefinition);
+            //I guess this validates the input?
+            $input->validate();
+        }
+        // instead of returning false in ->validate(), it throws an exception
+        catch (\RuntimeException $e){
+            return false;
+        }
 
         //all checks have passed, we can allow it
         return true;